<?xml version="1.0" encoding="US-ASCII"?>
<!-- DFIN New ActiveDisclosure (SM) XBRL Schema Document - http://www.dfinsolutions.com/ -->
<!-- Creation Date :2023-08-24T15:40:37.2176+00:00 -->
<!-- Copyright (c) 2023 Donnelly Financial Solutions, Inc. All Rights Reserved. -->
<xsd:schema targetNamespace="http://www.extremenetworks.com/20230630" attributeFormDefault="unqualified" elementFormDefault="qualified" xmlns:country="http://xbrl.sec.gov/country/2022" xmlns:dtr-types="http://www.xbrl.org/dtr/type/2020-01-21" xmlns:enum2="http://xbrl.org/2020/extensible-enumerations-2.0" xmlns:srt="http://fasb.org/srt/2022" xmlns:xsd="http://www.w3.org/2001/XMLSchema" xmlns:link="http://www.xbrl.org/2003/linkbase" xmlns:us-gaap="http://fasb.org/us-gaap/2022" xmlns:dei="http://xbrl.sec.gov/dei/2022" xmlns:xbrldt="http://xbrl.org/2005/xbrldt" xmlns:xbrli="http://www.xbrl.org/2003/instance" xmlns:extr="http://www.extremenetworks.com/20230630" xmlns:xlink="http://www.w3.org/1999/xlink">
  <xsd:import schemaLocation="http://www.xbrl.org/2003/xbrl-instance-2003-12-31.xsd" namespace="http://www.xbrl.org/2003/instance"/>
  <xsd:import schemaLocation="http://www.xbrl.org/2003/xbrl-linkbase-2003-12-31.xsd" namespace="http://www.xbrl.org/2003/linkbase"/>
  <xsd:import schemaLocation="http://www.xbrl.org/2005/xbrldt-2005.xsd" namespace="http://xbrl.org/2005/xbrldt"/>
  <xsd:import schemaLocation="https://www.xbrl.org/2020/extensible-enumerations-2.0.xsd" namespace="http://xbrl.org/2020/extensible-enumerations-2.0"/>
  <xsd:import schemaLocation="https://xbrl.sec.gov/dei/2022/dei-2022.xsd" namespace="http://xbrl.sec.gov/dei/2022"/>
  <xsd:import schemaLocation="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd" namespace="http://fasb.org/us-gaap/2022"/>
  <xsd:import schemaLocation="https://xbrl.sec.gov/country/2022/country-2022.xsd" namespace="http://xbrl.sec.gov/country/2022"/>
  <xsd:import schemaLocation="https://www.xbrl.org/dtr/type/2020-01-21/types.xsd" namespace="http://www.xbrl.org/dtr/type/2020-01-21"/>
  <xsd:import schemaLocation="https://xbrl.fasb.org/srt/2022/elts/srt-2022.xsd" namespace="http://fasb.org/srt/2022"/>
  <xsd:annotation>
    <xsd:appinfo>
      <link:linkbaseRef xlink:arcrole="http://www.w3.org/1999/xlink/properties/linkbase" xlink:href="extr-20230630_lab.xml" xlink:role="http://www.xbrl.org/2003/role/labelLinkbaseRef" xlink:title="Labels link" xlink:type="simple"/>
      <link:linkbaseRef xlink:arcrole="http://www.w3.org/1999/xlink/properties/linkbase" xlink:href="extr-20230630_pre.xml" xlink:role="http://www.xbrl.org/2003/role/presentationLinkbaseRef" xlink:title="Presentation link" xlink:type="simple"/>
      <link:linkbaseRef xlink:arcrole="http://www.w3.org/1999/xlink/properties/linkbase" xlink:href="extr-20230630_def.xml" xlink:role="http://www.xbrl.org/2003/role/definitionLinkbaseRef" xlink:title="Definition link" xlink:type="simple"/>
      <link:linkbaseRef xlink:arcrole="http://www.w3.org/1999/xlink/properties/linkbase" xlink:href="extr-20230630_cal.xml" xlink:role="http://www.xbrl.org/2003/role/calculationLinkbaseRef" xlink:title="Calculation link" xlink:type="simple"/>
      <link:roleType roleURI="http://www.extremenetworks.com/20230630/taxonomy/role/Role_DocumentDocumentAndEntityInformation" id="Role_DocumentDocumentAndEntityInformation">
        <link:definition>100000 - Document - Document and Entity Information</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://www.extremenetworks.com/20230630/taxonomy/role/Role_StatementConsolidatedBalanceSheets" id="Role_StatementConsolidatedBalanceSheets">
        <link:definition>100010 - Statement - Consolidated Balance Sheets</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://www.extremenetworks.com/20230630/taxonomy/role/Role_StatementConsolidatedBalanceSheetsParenthetical" id="Role_StatementConsolidatedBalanceSheetsParenthetical">
        <link:definition>100020 - Statement - Consolidated Balance Sheets (Parenthetical)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://www.extremenetworks.com/20230630/taxonomy/role/Role_StatementConsolidatedStatementsOfOperations" id="Role_StatementConsolidatedStatementsOfOperations">
        <link:definition>100030 - Statement - Consolidated Statements of Operations</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://www.extremenetworks.com/20230630/taxonomy/role/StatementConsolidatedStatementsOfComprehensiveIncome" id="StatementConsolidatedStatementsOfComprehensiveIncome">
        <link:definition>100040 - Statement - Consolidated Statements of Comprehensive Income</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://www.extremenetworks.com/20230630/taxonomy/role/Role_StatementConsolidatedStatementsOfStockholdersEquity" id="Role_StatementConsolidatedStatementsOfStockholdersEquity">
        <link:definition>100050 - Statement - Consolidated Statements of Stockholders' Equity</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://www.extremenetworks.com/20230630/taxonomy/role/Role_StatementConsolidatedStatementsOfCashFlows" id="Role_StatementConsolidatedStatementsOfCashFlows">
        <link:definition>100060 - Statement - Consolidated Statements of Cash Flows</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://www.extremenetworks.com/20230630/taxonomy/role/DisclosureInsiderTradingArrangements" id="DisclosureInsiderTradingArrangements">
        <link:definition>100070 - Disclosure - Insider Trading Arrangements</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://www.extremenetworks.com/20230630/taxonomy/role/Role_DisclosureDescriptionOfBusinessAndBasisOfPresentation" id="Role_DisclosureDescriptionOfBusinessAndBasisOfPresentation">
        <link:definition>100080 - Disclosure - Description of Business and Basis of Presentation</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://www.extremenetworks.com/20230630/taxonomy/role/Role_DisclosureSummaryOfSignificantAccountingPolicies" id="Role_DisclosureSummaryOfSignificantAccountingPolicies">
        <link:definition>100090 - Disclosure - Summary of Significant Accounting Policies</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://www.extremenetworks.com/20230630/taxonomy/role/Role_DisclosureRevenues" id="Role_DisclosureRevenues">
        <link:definition>100100 - Disclosure - Revenues</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://www.extremenetworks.com/20230630/taxonomy/role/Role_DisclosureBusinessCombinations" id="Role_DisclosureBusinessCombinations">
        <link:definition>100110 - Disclosure - Business Combinations</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://www.extremenetworks.com/20230630/taxonomy/role/Role_DisclosureBalanceSheetComponents" id="Role_DisclosureBalanceSheetComponents">
        <link:definition>100120 - Disclosure - Balance Sheet Components</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://www.extremenetworks.com/20230630/taxonomy/role/Role_DisclosureFairValueMeasurements" id="Role_DisclosureFairValueMeasurements">
        <link:definition>100130 - Disclosure - Fair Value Measurements</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://www.extremenetworks.com/20230630/taxonomy/role/Role_DisclosureGoodwillAndIntangibleAssets" id="Role_DisclosureGoodwillAndIntangibleAssets">
        <link:definition>100140 - Disclosure - Goodwill and Intangible Assets</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://www.extremenetworks.com/20230630/taxonomy/role/Role_DisclosureDebt" id="Role_DisclosureDebt">
        <link:definition>100150 - Disclosure - Debt</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://www.extremenetworks.com/20230630/taxonomy/role/Role_DisclosureLeases" id="Role_DisclosureLeases">
        <link:definition>100160 - Disclosure - Leases</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://www.extremenetworks.com/20230630/taxonomy/role/Role_DisclosureCommitmentsAndContingencies" id="Role_DisclosureCommitmentsAndContingencies">
        <link:definition>100170 - Disclosure - Commitments and Contingencies</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://www.extremenetworks.com/20230630/taxonomy/role/Role_DisclosureStockholdersEquity" id="Role_DisclosureStockholdersEquity">
        <link:definition>100180 - Disclosure - Stockholders' Equity</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://www.extremenetworks.com/20230630/taxonomy/role/Role_DisclosureEmployeeBenefitPlans" id="Role_DisclosureEmployeeBenefitPlans">
        <link:definition>100190 - Disclosure - Employee Benefit Plans</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://www.extremenetworks.com/20230630/taxonomy/role/DisclosureInformationAboutSegmentsAndGeographicAreas" id="DisclosureInformationAboutSegmentsAndGeographicAreas">
        <link:definition>100200 - Disclosure - Information about Segments and Geographic Areas</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://www.extremenetworks.com/20230630/taxonomy/role/Role_DisclosureDerivativesAndHedging" id="Role_DisclosureDerivativesAndHedging">
        <link:definition>100210 - Disclosure - Derivatives and Hedging</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://www.extremenetworks.com/20230630/taxonomy/role/Role_DisclosureRestructuringImpairmentsAndRelatedCharges" id="Role_DisclosureRestructuringImpairmentsAndRelatedCharges">
        <link:definition>100220 - Disclosure - Restructuring, Impairments, and Related Charges</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://www.extremenetworks.com/20230630/taxonomy/role/Role_DisclosureIncomeTaxes" id="Role_DisclosureIncomeTaxes">
        <link:definition>100230 - Disclosure - Income Taxes</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://www.extremenetworks.com/20230630/taxonomy/role/DisclosureNetIncomePerShare" id="DisclosureNetIncomePerShare">
        <link:definition>100240 - Disclosure - Net Income Per Share</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://www.extremenetworks.com/20230630/taxonomy/role/Role_DisclosureSummaryOfSignificantAccountingPoliciesPolicies" id="Role_DisclosureSummaryOfSignificantAccountingPoliciesPolicies">
        <link:definition>100250 - Disclosure - Summary of Significant Accounting Policies (Policies)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://www.extremenetworks.com/20230630/taxonomy/role/Role_DisclosureRevenuesTables" id="Role_DisclosureRevenuesTables">
        <link:definition>100260 - Disclosure - Revenues (Tables)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://www.extremenetworks.com/20230630/taxonomy/role/Role_DisclosureBusinessCombinationsTables" id="Role_DisclosureBusinessCombinationsTables">
        <link:definition>100270 - Disclosure - Business Combinations (Tables)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://www.extremenetworks.com/20230630/taxonomy/role/Role_DisclosureBalanceSheetComponentsTables" id="Role_DisclosureBalanceSheetComponentsTables">
        <link:definition>100280 - Disclosure - Balance Sheet Components (Tables)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://www.extremenetworks.com/20230630/taxonomy/role/Role_DisclosureFairValueMeasurementsTables" id="Role_DisclosureFairValueMeasurementsTables">
        <link:definition>100290 - Disclosure - Fair Value Measurements (Tables)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://www.extremenetworks.com/20230630/taxonomy/role/Role_DisclosureGoodwillAndIntangibleAssetsTables" id="Role_DisclosureGoodwillAndIntangibleAssetsTables">
        <link:definition>100300 - Disclosure - Goodwill and Intangible Assets (Tables)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://www.extremenetworks.com/20230630/taxonomy/role/Role_DisclosureDebtTables" id="Role_DisclosureDebtTables">
        <link:definition>100310 - Disclosure - Debt (Tables)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://www.extremenetworks.com/20230630/taxonomy/role/Role_DisclosureLeasesTables" id="Role_DisclosureLeasesTables">
        <link:definition>100320 - Disclosure - Leases (Tables)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://www.extremenetworks.com/20230630/taxonomy/role/Role_DisclosureEmployeeBenefitPlansTables" id="Role_DisclosureEmployeeBenefitPlansTables">
        <link:definition>100330 - Disclosure - Employee Benefit Plans (Tables)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://www.extremenetworks.com/20230630/taxonomy/role/DisclosureInformationAboutSegmentsAndGeographicAreasTables" id="DisclosureInformationAboutSegmentsAndGeographicAreasTables">
        <link:definition>100340 - Disclosure - Information about Segments and Geographic Areas (Tables)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://www.extremenetworks.com/20230630/taxonomy/role/Role_DisclosureRestructuringImpairmentsAndRelatedChargesTables" id="Role_DisclosureRestructuringImpairmentsAndRelatedChargesTables">
        <link:definition>100350 - Disclosure - Restructuring, Impairments, and Related Charges (Tables)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://www.extremenetworks.com/20230630/taxonomy/role/Role_DisclosureIncomeTaxesTables" id="Role_DisclosureIncomeTaxesTables">
        <link:definition>100360 - Disclosure - Income Taxes (Tables)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://www.extremenetworks.com/20230630/taxonomy/role/DisclosureNetIncomePerShareTables" id="DisclosureNetIncomePerShareTables">
        <link:definition>100370 - Disclosure - Net Income Per Share (Tables)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://www.extremenetworks.com/20230630/taxonomy/role/Role_DisclosureSummaryOfSignificantAccountingPoliciesNarrativesDetails" id="Role_DisclosureSummaryOfSignificantAccountingPoliciesNarrativesDetails">
        <link:definition>100380 - Disclosure - Summary of Significant Accounting Policies (Narratives) (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://www.extremenetworks.com/20230630/taxonomy/role/Role_DisclosureRevenuesNarrativesDetails" id="Role_DisclosureRevenuesNarrativesDetails">
        <link:definition>100390 - Disclosure - Revenues (Narratives) (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://www.extremenetworks.com/20230630/taxonomy/role/Role_DisclosureRevenuesNarrativesDetails1" id="Role_DisclosureRevenuesNarrativesDetails1">
        <link:definition>100400 - Disclosure - Revenues (Narratives) (Details 1)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://www.extremenetworks.com/20230630/taxonomy/role/Role_DisclosureRevenuesScheduleOfRevenuesDisaggregatedBySalesChannelAndGeographicRegionDetails" id="Role_DisclosureRevenuesScheduleOfRevenuesDisaggregatedBySalesChannelAndGeographicRegionDetails">
        <link:definition>100410 - Disclosure - Revenues (Schedule of Revenues Disaggregated by Sales Channel and Geographic Region) (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://www.extremenetworks.com/20230630/taxonomy/role/Role_DisclosureRevenuesScheduleOfMajorCustomersAccountingFor10OrMoreOfNetRevenuesAndAccountsReceivableNetDetails" id="Role_DisclosureRevenuesScheduleOfMajorCustomersAccountingFor10OrMoreOfNetRevenuesAndAccountsReceivableNetDetails">
        <link:definition>100420 - Disclosure - Revenues (Schedule of Major Customers Accounting for 10% or More of Net Revenues and Accounts Receivable, Net) (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://www.extremenetworks.com/20230630/taxonomy/role/Role_DisclosureBusinessCombinationsNarrativesDetails" id="Role_DisclosureBusinessCombinationsNarrativesDetails">
        <link:definition>100430 - Disclosure - Business Combinations (Narratives) (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://www.extremenetworks.com/20230630/taxonomy/role/Role_DisclosureBusinessCombinationsSummaryOfAllocationOfTangibleAndIdentifiableIntangibleAssetsAcquiredAndLiabilitiesAssumedDetails" id="Role_DisclosureBusinessCombinationsSummaryOfAllocationOfTangibleAndIdentifiableIntangibleAssetsAcquiredAndLiabilitiesAssumedDetails">
        <link:definition>100440 - Disclosure - Business Combinations (Summary of Allocation of Tangible and Identifiable Intangible Assets Acquired and Liabilities Assumed) (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://www.extremenetworks.com/20230630/taxonomy/role/Role_DisclosureBusinessCombinationsScheduleOfIdentifiableIntangibleAssetsAcquiredAsPartOfAcquisitionDetails" id="Role_DisclosureBusinessCombinationsScheduleOfIdentifiableIntangibleAssetsAcquiredAsPartOfAcquisitionDetails">
        <link:definition>100450 - Disclosure - Business Combinations (Schedule of Identifiable Intangible Assets Acquired as Part of Acquisition) (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://www.extremenetworks.com/20230630/taxonomy/role/Role_DisclosureBusinessCombinationsSummaryOfAllocationOfTangibleAndIdentifiableIntangibleAssetsAcquiredAndLiabilitiesAssumedDetails2" id="Role_DisclosureBusinessCombinationsSummaryOfAllocationOfTangibleAndIdentifiableIntangibleAssetsAcquiredAndLiabilitiesAssumedDetails2">
        <link:definition>100460 - Disclosure - Business Combinations (Summary of Allocation of Tangible and Identifiable Intangible Assets Acquired and Liabilities Assumed) (Details) 2</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://www.extremenetworks.com/20230630/taxonomy/role/Role_DisclosureBusinessCombinationsSummaryOfUnauditedProFormaFinancialInformationDetails" id="Role_DisclosureBusinessCombinationsSummaryOfUnauditedProFormaFinancialInformationDetails">
        <link:definition>100470 - Disclosure - Business Combinations (Summary of Unaudited Pro Forma Financial Information) (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://www.extremenetworks.com/20230630/taxonomy/role/Role_DisclosureBusinessCombinationsComponentsOfAggregatePurchaseConsiderationDetails" id="Role_DisclosureBusinessCombinationsComponentsOfAggregatePurchaseConsiderationDetails">
        <link:definition>100480 - Disclosure - Business Combinations (Components of Aggregate Purchase Consideration) (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://www.extremenetworks.com/20230630/taxonomy/role/Role_DisclosureBalanceSheetComponentsSummaryOfAccountsReceivableDetails" id="Role_DisclosureBalanceSheetComponentsSummaryOfAccountsReceivableDetails">
        <link:definition>100490 - Disclosure - Balance Sheet Components (Summary of Accounts Receivable) (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://www.extremenetworks.com/20230630/taxonomy/role/Role_DisclosureBalanceSheetComponentsAllowanceForCreditLossesDetails" id="Role_DisclosureBalanceSheetComponentsAllowanceForCreditLossesDetails">
        <link:definition>100500 - Disclosure - Balance Sheet Components (Allowance for Credit Losses) (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://www.extremenetworks.com/20230630/taxonomy/role/Role_DisclosureBalanceSheetComponentsAllowanceForProductReturnsDetails" id="Role_DisclosureBalanceSheetComponentsAllowanceForProductReturnsDetails">
        <link:definition>100510 - Disclosure - Balance Sheet Components (Allowance for Product Returns) (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://www.extremenetworks.com/20230630/taxonomy/role/Role_DisclosureBalanceSheetComponentsComponentsOfInventoriesDetails" id="Role_DisclosureBalanceSheetComponentsComponentsOfInventoriesDetails">
        <link:definition>100520 - Disclosure - Balance Sheet Components (Components of Inventories) (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://www.extremenetworks.com/20230630/taxonomy/role/Role_DisclosureBalanceSheetComponentsComponentsOfPropertyAndEquipmentDetails" id="Role_DisclosureBalanceSheetComponentsComponentsOfPropertyAndEquipmentDetails">
        <link:definition>100530 - Disclosure - Balance Sheet Components (Components of Property and Equipment) (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://www.extremenetworks.com/20230630/taxonomy/role/Role_DisclosureBalanceSheetComponentsNarrativesDetails" id="Role_DisclosureBalanceSheetComponentsNarrativesDetails">
        <link:definition>100540 - Disclosure - Balance Sheet Components (Narratives) (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://www.extremenetworks.com/20230630/taxonomy/role/Role_DisclosureBalanceSheetComponentsSummaryOfContractLiabilitiesShownAsDeferredRevenueDetails" id="Role_DisclosureBalanceSheetComponentsSummaryOfContractLiabilitiesShownAsDeferredRevenueDetails">
        <link:definition>100550 - Disclosure - Balance Sheet Components (Summary of Contract Liabilities Shown as Deferred Revenue) (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://www.extremenetworks.com/20230630/taxonomy/role/Role_DisclosureBalanceSheetComponentsSummaryOfProductWarrantyLiabilityActivityDetails" id="Role_DisclosureBalanceSheetComponentsSummaryOfProductWarrantyLiabilityActivityDetails">
        <link:definition>100560 - Disclosure - Balance Sheet Components (Summary of Product Warranty Liability Activity) (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://www.extremenetworks.com/20230630/taxonomy/role/Role_DisclosureFairValueMeasurementsScheduleOfFairValueForFinancialAssetsAndLiabilitiesMeasuredOnRecurringBasisDetails" id="Role_DisclosureFairValueMeasurementsScheduleOfFairValueForFinancialAssetsAndLiabilitiesMeasuredOnRecurringBasisDetails">
        <link:definition>100570 - Disclosure - Fair Value Measurements (Schedule of Fair Value for Financial Assets and Liabilities Measured on Recurring Basis) (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://www.extremenetworks.com/20230630/taxonomy/role/Role_DisclosureFairValueMeasurementsNarrativesDetails" id="Role_DisclosureFairValueMeasurementsNarrativesDetails">
        <link:definition>100580 - Disclosure - Fair Value Measurements (Narratives) (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://www.extremenetworks.com/20230630/taxonomy/role/Role_DisclosureFairValueMeasurementsScheduleOfChangeInAcquisitionRelatedContingentConsiderationObligationsDetails" id="Role_DisclosureFairValueMeasurementsScheduleOfChangeInAcquisitionRelatedContingentConsiderationObligationsDetails">
        <link:definition>100590 - Disclosure - Fair Value Measurements (Schedule of Change in Acquisition-related Contingent Consideration Obligations) (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://www.extremenetworks.com/20230630/taxonomy/role/Role_DisclosureGoodwillAndIntangibleAssetsSummaryOfGoodwillDetails" id="Role_DisclosureGoodwillAndIntangibleAssetsSummaryOfGoodwillDetails">
        <link:definition>100600 - Disclosure - Goodwill and Intangible Assets (Summary of Goodwill) (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://www.extremenetworks.com/20230630/taxonomy/role/Role_DisclosureGoodwillAndIntangibleAssetsComponentsOfGrossAndNetIntangibleAssetBalancesDetails" id="Role_DisclosureGoodwillAndIntangibleAssetsComponentsOfGrossAndNetIntangibleAssetBalancesDetails">
        <link:definition>100610 - Disclosure - Goodwill and Intangible Assets (Components of Gross and Net Intangible Asset Balances) (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://www.extremenetworks.com/20230630/taxonomy/role/Role_DisclosureGoodwillAndIntangibleAssetsSummaryOfAmortizationExpenseOfIntangiblesDetails" id="Role_DisclosureGoodwillAndIntangibleAssetsSummaryOfAmortizationExpenseOfIntangiblesDetails">
        <link:definition>100620 - Disclosure - Goodwill and Intangible Assets (Summary of Amortization Expense of Intangibles) (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://www.extremenetworks.com/20230630/taxonomy/role/Role_DisclosureGoodwillAndIntangibleAssetsScheduleFutureAmortizationForFiniteLivedIntangibleAssetsDetails" id="Role_DisclosureGoodwillAndIntangibleAssetsScheduleFutureAmortizationForFiniteLivedIntangibleAssetsDetails">
        <link:definition>100630 - Disclosure - Goodwill and Intangible Assets (Schedule Future Amortization for Finite-Lived Intangible Assets) (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://www.extremenetworks.com/20230630/taxonomy/role/Role_DisclosureDebtComponentsOfDebtDetails" id="Role_DisclosureDebtComponentsOfDebtDetails">
        <link:definition>100640 - Disclosure - Debt (Components of Debt) (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://www.extremenetworks.com/20230630/taxonomy/role/Role_DisclosureDebtNarrativesDetails" id="Role_DisclosureDebtNarrativesDetails">
        <link:definition>100650 - Disclosure - Debt (Narratives) (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://www.extremenetworks.com/20230630/taxonomy/role/Role_DisclosureDebtScheduleOfDebtMaturitiesExcludingUnamortizedDebtIssuanceCostsDetails" id="Role_DisclosureDebtScheduleOfDebtMaturitiesExcludingUnamortizedDebtIssuanceCostsDetails">
        <link:definition>100660 - Disclosure - Debt (Schedule of Debt Maturities Excluding Unamortized Debt Issuance Costs) (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://www.extremenetworks.com/20230630/taxonomy/role/Role_DisclosureLeasesNarrativesDetails" id="Role_DisclosureLeasesNarrativesDetails">
        <link:definition>100670 - Disclosure - Leases (Narratives) (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://www.extremenetworks.com/20230630/taxonomy/role/Role_DisclosureLeasesSummaryOfActivityAndOtherInformationRelatingToOperatingLeasesDetails" id="Role_DisclosureLeasesSummaryOfActivityAndOtherInformationRelatingToOperatingLeasesDetails">
        <link:definition>100680 - Disclosure - Leases (Summary of Activity and Other Information Relating to Operating Leases) (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://www.extremenetworks.com/20230630/taxonomy/role/Role_DisclosureLeasesScheduleOfMaturitiesOfOperatingLeaseLiabilitiesDetails" id="Role_DisclosureLeasesScheduleOfMaturitiesOfOperatingLeaseLiabilitiesDetails">
        <link:definition>100690 - Disclosure - Leases (Schedule of Maturities of Operating Lease Liabilities) (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://www.extremenetworks.com/20230630/taxonomy/role/Role_DisclosureCommitmentsAndContingenciesNarrativesDetails" id="Role_DisclosureCommitmentsAndContingenciesNarrativesDetails">
        <link:definition>100700 - Disclosure - Commitments and Contingencies (Narratives) (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://www.extremenetworks.com/20230630/taxonomy/role/Role_DisclosureStockholdersEquityNarrativesDetails" id="Role_DisclosureStockholdersEquityNarrativesDetails">
        <link:definition>100710 - Disclosure - Stockholders' Equity (Narratives) (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://www.extremenetworks.com/20230630/taxonomy/role/Role_DisclosureEmployeeBenefitPlansNarrativesDetails" id="Role_DisclosureEmployeeBenefitPlansNarrativesDetails">
        <link:definition>100720 - Disclosure - Employee Benefit Plans (Narratives) (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://www.extremenetworks.com/20230630/taxonomy/role/Role_DisclosureLeasesScheduleOfMaturitiesOfOperatingLeaseLiabilitiesDetails2" id="Role_DisclosureLeasesScheduleOfMaturitiesOfOperatingLeaseLiabilitiesDetails2">
        <link:definition>100730 - Disclosure - Leases (Schedule of Maturities of Operating Lease Liabilities) (Details) 2</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://www.extremenetworks.com/20230630/taxonomy/role/Role_DisclosureEmployeeBenefitPlansSharesReservedForIssuanceDetails" id="Role_DisclosureEmployeeBenefitPlansSharesReservedForIssuanceDetails">
        <link:definition>100740 - Disclosure - Employee Benefit Plans (Shares Reserved for Issuance) (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://www.extremenetworks.com/20230630/taxonomy/role/Role_DisclosureEmployeeBenefitPlansSummaryOfStockOptionActivityDetails" id="Role_DisclosureEmployeeBenefitPlansSummaryOfStockOptionActivityDetails">
        <link:definition>100750 - Disclosure - Employee Benefit Plans (Summary of Stock Option Activity) (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://www.extremenetworks.com/20230630/taxonomy/role/Role_DisclosureEmployeeBenefitPlansSummaryOfStockAwardActivityDetails" id="Role_DisclosureEmployeeBenefitPlansSummaryOfStockAwardActivityDetails">
        <link:definition>100760 - Disclosure - Employee Benefit Plans (Summary of Stock Award Activity) (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://www.extremenetworks.com/20230630/taxonomy/role/Role_DisclosureEmployeeBenefitPlansScheduleOfPsusEarnedAndVestedBasedOnTotalStockholderReturnTSRPsusDetails" id="Role_DisclosureEmployeeBenefitPlansScheduleOfPsusEarnedAndVestedBasedOnTotalStockholderReturnTSRPsusDetails">
        <link:definition>100770 - Disclosure - Employee Benefit Plans (Schedule of PSUs Earned and Vested Based on Total Stockholder Return (TSR PSUs)) (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://www.extremenetworks.com/20230630/taxonomy/role/Role_DisclosureEmployeeBenefitPlansSummaryOfStockAwardsWithMarketOrPerformanceBasedConditionsGrantedDetails" id="Role_DisclosureEmployeeBenefitPlansSummaryOfStockAwardsWithMarketOrPerformanceBasedConditionsGrantedDetails">
        <link:definition>100780 - Disclosure - Employee Benefit Plans (Summary of Stock Awards with Market or Performance Based Conditions Granted) (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://www.extremenetworks.com/20230630/taxonomy/role/Role_DisclosureEmployeeBenefitPlansScheduleOfRecognizedShareBasedCompensationExpenseDetails" id="Role_DisclosureEmployeeBenefitPlansScheduleOfRecognizedShareBasedCompensationExpenseDetails">
        <link:definition>100790 - Disclosure - Employee Benefit Plans (Schedule of Recognized Share-based Compensation Expense) (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://www.extremenetworks.com/20230630/taxonomy/role/Role_DisclosureEmployeeBenefitPlansScheduleOfFairValueAssumptionsForStockOptionsAndEmployeeStockPurchasePlanAwardsDetails" id="Role_DisclosureEmployeeBenefitPlansScheduleOfFairValueAssumptionsForStockOptionsAndEmployeeStockPurchasePlanAwardsDetails">
        <link:definition>100800 - Disclosure - Employee Benefit Plans (Schedule of Fair Value Assumptions for Stock Options and Employee Stock Purchase Plan Awards) (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://www.extremenetworks.com/20230630/taxonomy/role/DisclosureInformationAboutSegmentsAndGeographicAreasNarrativesDetails" id="DisclosureInformationAboutSegmentsAndGeographicAreasNarrativesDetails">
        <link:definition>100810 - Disclosure - Information about Segments and Geographic Areas (Narratives) (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://www.extremenetworks.com/20230630/taxonomy/role/DisclosureInformationAboutSegmentsAndGeographicAreasScheduleOfLongLivedAssetsBySegmentDetails" id="DisclosureInformationAboutSegmentsAndGeographicAreasScheduleOfLongLivedAssetsBySegmentDetails">
        <link:definition>100820 - Disclosure - Information about Segments and Geographic Areas (Schedule of Long Lived Assets by Segment) (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://www.extremenetworks.com/20230630/taxonomy/role/Role_DisclosureDerivativesAndHedgingNarrativesDetails" id="Role_DisclosureDerivativesAndHedgingNarrativesDetails">
        <link:definition>100830 - Disclosure - Derivatives and Hedging (Narratives) (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://www.extremenetworks.com/20230630/taxonomy/role/Role_DisclosureRestructuringImpairmentsAndRelatedChargesNarrativesDetails" id="Role_DisclosureRestructuringImpairmentsAndRelatedChargesNarrativesDetails">
        <link:definition>100840 - Disclosure - Restructuring, Impairments, and Related Charges (Narratives) (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://www.extremenetworks.com/20230630/taxonomy/role/Role_DisclosureRestructuringImpairmentsAndRelatedChargesRestructuringLiabilitiesDetails" id="Role_DisclosureRestructuringImpairmentsAndRelatedChargesRestructuringLiabilitiesDetails">
        <link:definition>100850 - Disclosure - Restructuring, Impairments, and Related Charges (Restructuring Liabilities) (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://www.extremenetworks.com/20230630/taxonomy/role/Role_DisclosureIncomeTaxesScheduleOfIncomeLossBeforeIncomeTaxDomesticAndForeignDetails" id="Role_DisclosureIncomeTaxesScheduleOfIncomeLossBeforeIncomeTaxDomesticAndForeignDetails">
        <link:definition>100860 - Disclosure - Income Taxes (Schedule of Income (Loss) Before Income Tax, Domestic and Foreign) (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://www.extremenetworks.com/20230630/taxonomy/role/Role_DisclosureIncomeTaxesScheduleOfComponentsOfIncomeTaxExpenseBenefitDetails" id="Role_DisclosureIncomeTaxesScheduleOfComponentsOfIncomeTaxExpenseBenefitDetails">
        <link:definition>100870 - Disclosure - Income Taxes (Schedule of Components of Income Tax Expense (Benefit)) (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://www.extremenetworks.com/20230630/taxonomy/role/Role_DisclosureIncomeTaxesScheduleOfEffectiveIncomeTaxRateReconciliationDetails" id="Role_DisclosureIncomeTaxesScheduleOfEffectiveIncomeTaxRateReconciliationDetails">
        <link:definition>100880 - Disclosure - Income Taxes (Schedule of Effective Income Tax Rate Reconciliation) (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://www.extremenetworks.com/20230630/taxonomy/role/Role_DisclosureIncomeTaxesScheduleOfDeferredTaxAssetsAndLiabilitiesDetails" id="Role_DisclosureIncomeTaxesScheduleOfDeferredTaxAssetsAndLiabilitiesDetails">
        <link:definition>100890 - Disclosure - Income Taxes (Schedule of Deferred Tax Assets and Liabilities) (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://www.extremenetworks.com/20230630/taxonomy/role/Role_DisclosureIncomeTaxesNarrativesDetails" id="Role_DisclosureIncomeTaxesNarrativesDetails">
        <link:definition>100900 - Disclosure - Income Taxes (Narratives) (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://www.extremenetworks.com/20230630/taxonomy/role/Role_DisclosureIncomeTaxesScheduleOfUnrecognizedTaxBenefitsDetails" id="Role_DisclosureIncomeTaxesScheduleOfUnrecognizedTaxBenefitsDetails">
        <link:definition>100910 - Disclosure - Income Taxes (Schedule of Unrecognized Tax Benefits) (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://www.extremenetworks.com/20230630/taxonomy/role/DisclosureNetIncomePerShareScheduleOfEarningsPerShareBasicAndDilutedDetails" id="DisclosureNetIncomePerShareScheduleOfEarningsPerShareBasicAndDilutedDetails">
        <link:definition>100920 - Disclosure - Net Income Per Share (Schedule of Earnings Per Share, Basic and Diluted) (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://www.extremenetworks.com/20230630/taxonomy/role/Role_DisclosureIncomeTaxesScheduleOfDeferredTaxAssetsAndLiabilitiesDetails2" id="Role_DisclosureIncomeTaxesScheduleOfDeferredTaxAssetsAndLiabilitiesDetails2">
        <link:definition>100930 - Disclosure - Income Taxes (Schedule of Deferred Tax Assets and Liabilities) (Details) 2</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://www.extremenetworks.com/20230630/taxonomy/role/DisclosureNetIncomePerShareScheduleOfAntidilutiveSharesExcludedFromEarningsPerShareCalculationDetails" id="DisclosureNetIncomePerShareScheduleOfAntidilutiveSharesExcludedFromEarningsPerShareCalculationDetails">
        <link:definition>100940 - Disclosure - Net Income Per Share (Schedule of Anti-Dilutive Shares Excluded from Earnings Per Share Calculation) (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
    </xsd:appinfo>
  </xsd:annotation>
  <xsd:element id="extr_DistributionChannelsToPartners" name="DistributionChannelsToPartners" type="xbrli:integerItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false"/>
  <xsd:element id="extr_UnrecognizedTaxBenefitIfRecognizedThatWouldImpactAdjustmentsToDeferredTaxAssetsAndValuationAllowances" name="UnrecognizedTaxBenefitIfRecognizedThatWouldImpactAdjustmentsToDeferredTaxAssetsAndValuationAllowances" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" nillable="true" abstract="false" xbrli:balance="credit"/>
  <xsd:element id="extr_ShareBasedCompensationArrangementByShareBasedPaymentAwardSharesIssuedInPeriodUnderEmployeeStockPurchasePlan" name="ShareBasedCompensationArrangementByShareBasedPaymentAwardSharesIssuedInPeriodUnderEmployeeStockPurchasePlan" type="xbrli:sharesItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" nillable="true" abstract="false"/>
  <xsd:element id="extr_CommissionFeesMember" name="CommissionFeesMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="extr_TaxCreditCarryforwardsNotSubjectToExpirationMember" name="TaxCreditCarryforwardsNotSubjectToExpirationMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="extr_ShareBasedCompensationArrangementByShareBasedPaymentAwardRelativeTSRAsDescriptionOfBelowThreshold" name="ShareBasedCompensationArrangementByShareBasedPaymentAwardRelativeTSRAsDescriptionOfBelowThreshold" type="xbrli:stringItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false"/>
  <xsd:element id="extr_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedNetTangibleAssets" name="BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedNetTangibleAssets" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" nillable="true" abstract="false" xbrli:balance="debit"/>
  <xsd:element id="extr_AdditionalSeveranceCost" name="AdditionalSeveranceCost" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false" xbrli:balance="debit"/>
  <xsd:element id="extr_RestructuringAndRelatedActivitiesDurationOfCompletion" name="RestructuringAndRelatedActivitiesDurationOfCompletion" type="xbrli:durationItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false"/>
  <xsd:element id="extr_FacilitiesMember" name="FacilitiesMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="extr_TwoThousandAndThirteenEquityIncentivePlanMember" name="TwoThousandAndThirteenEquityIncentivePlanMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="extr_SeveranceAndOtherMember" name="SeveranceAndOtherMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="extr_TwoThousandAndTwentyOneReductionInForcePlanMember" name="TwoThousandAndTwentyOneReductionInForcePlanMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="extr_MSUMember" name="MSUMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="extr_ShareBasedCompensationArrangementByShareBasedPaymentAwardSharesVestedAsPercentageOfBelowThreshold" name="ShareBasedCompensationArrangementByShareBasedPaymentAwardSharesVestedAsPercentageOfBelowThreshold" type="dtr-types:percentItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false"/>
  <xsd:element id="extr_TrdArrIndName" name="TrdArrIndName" type="xbrli:stringItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false"/>
  <xsd:element id="extr_FirstAmendmentMember" name="FirstAmendmentMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="extr_BusinessCombinationConsiderationCashPaidToAcquireShares" name="BusinessCombinationConsiderationCashPaidToAcquireShares" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false" xbrli:balance="credit"/>
  <xsd:element id="extr_CalculatedTotalShareholdersReturnTSRDescription" name="CalculatedTotalShareholdersReturnTSRDescription" type="xbrli:stringItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false"/>
  <xsd:element id="extr_TotalStockholderReturnPerformanceSharesMember" name="TotalStockholderReturnPerformanceSharesMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="extr_EstimatedInterestIncomeOverNextTwelveMonths" name="EstimatedInterestIncomeOverNextTwelveMonths" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false" xbrli:balance="debit"/>
  <xsd:element id="extr_ScheduleOfAwardsPerformanceThresholdsAndSharesExpectedToVestTableTextBlock" name="ScheduleOfAwardsPerformanceThresholdsAndSharesExpectedToVestTableTextBlock" type="dtr-types:textBlockItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false"/>
  <xsd:element id="extr_StockRepurchaseExtendedPeriodEffectiveDate" name="StockRepurchaseExtendedPeriodEffectiveDate" type="xbrli:dateItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false"/>
  <xsd:element id="extr_PerformanceOrMarketBasedRestrictedStockUnitsMember" name="PerformanceOrMarketBasedRestrictedStockUnitsMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="extr_MaximumNumberOfSharesAvailableForSaleUnderEquityIncentivePlan" name="MaximumNumberOfSharesAvailableForSaleUnderEquityIncentivePlan" type="xbrli:sharesItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false"/>
  <xsd:element id="extr_OtherDeferredRevenueMember" name="OtherDeferredRevenueMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="extr_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsExpectedToVestOutstandingAggregateFairMarketValue" name="ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsExpectedToVestOutstandingAggregateFairMarketValue" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" nillable="true" abstract="false" xbrli:balance="debit"/>
  <xsd:element id="extr_HardwareProductsWarrantyPeriod" name="HardwareProductsWarrantyPeriod" type="xbrli:durationItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false"/>
  <xsd:element id="extr_ContractualServicePeriod" name="ContractualServicePeriod" type="xbrli:durationItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false"/>
  <xsd:element id="extr_AcquiredFiniteLivedIntangibleAssetUsefulLife" name="AcquiredFiniteLivedIntangibleAssetUsefulLife" type="xbrli:durationItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false"/>
  <xsd:element id="extr_BusinessAcquisitionProFormaSharesUsedInEarningsPerShareCalculationBasic" name="BusinessAcquisitionProFormaSharesUsedInEarningsPerShareCalculationBasic" type="xbrli:sharesItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false"/>
  <xsd:element id="extr_StockRepurchaseExtendedPeriod" name="StockRepurchaseExtendedPeriod" type="xbrli:durationItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false"/>
  <xsd:element id="extr_AmendmentsMember" name="AmendmentsMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="extr_IpanemaMember" name="IpanemaMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="extr_DebtInstrumentSubjectToFloor" name="DebtInstrumentSubjectToFloor" type="dtr-types:percentItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false"/>
  <xsd:element id="extr_LineOfCreditSublimitForLettersOfCredit" name="LineOfCreditSublimitForLettersOfCredit" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" nillable="true" abstract="false" xbrli:balance="credit"/>
  <xsd:element id="extr_FairValueLiabilitiesLevel2ToLevel3TransfersAmount" name="FairValueLiabilitiesLevel2ToLevel3TransfersAmount" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" nillable="true" abstract="false" xbrli:balance="debit"/>
  <xsd:element id="extr_DeferredFederalStateAndForeignIncomeTaxExpenseBenefit" name="DeferredFederalStateAndForeignIncomeTaxExpenseBenefit" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false" xbrli:balance="debit"/>
  <xsd:element id="extr_AdjustmentsToAdditionalPaidInCapitalEquityForwardContract" name="AdjustmentsToAdditionalPaidInCapitalEquityForwardContract" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false" xbrli:balance="credit"/>
  <xsd:element id="extr_WestconMember" name="WestconMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="extr_DeferredPaymentsOnAnAcquisition" name="DeferredPaymentsOnAnAcquisition" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false" xbrli:balance="credit"/>
  <xsd:element id="extr_TrdArrIndTitle" name="TrdArrIndTitle" type="xbrli:stringItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false"/>
  <xsd:element id="extr_OtherChargesRelatedToPreviouslyImpairedFacilities" name="OtherChargesRelatedToPreviouslyImpairedFacilities" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false" xbrli:balance="debit"/>
  <xsd:element id="extr_StockRepurchaseProgramAuthorizedRepurchaseAmountPerCalendarYear" name="StockRepurchaseProgramAuthorizedRepurchaseAmountPerCalendarYear" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" nillable="true" abstract="false" xbrli:balance="credit"/>
  <xsd:element id="extr_TermLoanFacilityMember" name="TermLoanFacilityMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="extr_BusinessAcquisitionProFormaSharesUsedInEarningsPerShareCalculationDiluted" name="BusinessAcquisitionProFormaSharesUsedInEarningsPerShareCalculationDiluted" type="xbrli:sharesItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false"/>
  <xsd:element id="extr_InsiderTradingArrAbstract" name="InsiderTradingArrAbstract" type="xbrli:stringItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="extr_LesseeOperatingSubleaseTermOfContract" name="LesseeOperatingSubleaseTermOfContract" type="xbrli:durationItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false"/>
  <xsd:element id="extr_SecondAmendmentMember" name="SecondAmendmentMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="extr_CertificatesOfDepositAtFairValue" name="CertificatesOfDepositAtFairValue" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" nillable="true" abstract="false" xbrli:balance="debit"/>
  <xsd:element id="extr_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsExpectedToVestOutstandingWeightedAverageGrantDateFairValue" name="ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsExpectedToVestOutstandingWeightedAverageGrantDateFairValue" type="dtr-types:perShareItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" nillable="true" abstract="false"/>
  <xsd:element id="extr_AmendmentStartDate" name="AmendmentStartDate" type="xbrli:dateItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false"/>
  <xsd:element id="extr_TaxCreditCarryforwardsSubjectToExpirationMember" name="TaxCreditCarryforwardsSubjectToExpirationMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="extr_SoftwareProductsWarrantyPeriod" name="SoftwareProductsWarrantyPeriod" type="xbrli:durationItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false"/>
  <xsd:element id="extr_FourthAmendmentMember" name="FourthAmendmentMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="extr_Aerohive2014EquityIncentivePlanMember" name="Aerohive2014EquityIncentivePlanMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="extr_EmployeeStockOptionsAndAwardsOutstandingMember" name="EmployeeStockOptionsAndAwardsOutstandingMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="extr_CertainOfficersAndExecutiveVicePresidentsMember" name="CertainOfficersAndExecutiveVicePresidentsMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="extr_TDSynnexCorporationMember" name="TDSynnexCorporationMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="extr_TwoThousandAndTwentyThreeRestructuringPlanMember" name="TwoThousandAndTwentyThreeRestructuringPlanMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="extr_RestructuringAndRelatedCharges" name="RestructuringAndRelatedCharges" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false" xbrli:balance="debit"/>
  <xsd:element id="extr_SharesReservedForIssuanceTableTextBlock" name="SharesReservedForIssuanceTableTextBlock" type="dtr-types:textBlockItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false"/>
  <xsd:element id="extr_TwoThousandAndTwentyTwoReductionInForcePlanMember" name="TwoThousandAndTwentyTwoReductionInForcePlanMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="extr_ThirdAmendmentsMember" name="ThirdAmendmentsMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="extr_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedIntangibleAssetsIncludingGoodwill" name="BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedIntangibleAssetsIncludingGoodwill" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" nillable="true" abstract="false" xbrli:balance="debit"/>
  <xsd:element id="extr_ContractWithCustomerLiabilityTableTextBlock" name="ContractWithCustomerLiabilityTableTextBlock" type="dtr-types:textBlockItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false"/>
  <xsd:element id="extr_FairValueAssetsImpairment" name="FairValueAssetsImpairment" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false" xbrli:balance="debit"/>
  <xsd:element id="extr_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCurrentLiabilitiesOtherAccruedLiabilities" name="BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCurrentLiabilitiesOtherAccruedLiabilities" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" nillable="true" abstract="false" xbrli:balance="credit"/>
  <xsd:element id="extr_DeferredTaxAssetsOperatingLeaseLiability" name="DeferredTaxAssetsOperatingLeaseLiability" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" nillable="true" abstract="false" xbrli:balance="debit"/>
  <xsd:element id="extr_IncomeTaxReconciliationForeignTaxCreditsCosts" name="IncomeTaxReconciliationForeignTaxCreditsCosts" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false" xbrli:balance="credit"/>
  <xsd:element id="extr_ChangeInUnrealizedGainsAndLossesOnInterestRateSwapHedgingInstruments" name="ChangeInUnrealizedGainsAndLossesOnInterestRateSwapHedgingInstruments" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false" xbrli:balance="credit"/>
  <xsd:element id="extr_InfovistaMember" name="InfovistaMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="extr_BusinessAcquisitionRevenueFromAcquiree" name="BusinessAcquisitionRevenueFromAcquiree" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false" xbrli:balance="credit"/>
  <xsd:element id="extr_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedOperatingLeaseRightUseOfAssets" name="BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedOperatingLeaseRightUseOfAssets" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" nillable="true" abstract="false" xbrli:balance="debit"/>
  <xsd:element id="extr_OngoingRate" name="OngoingRate" type="dtr-types:percentItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false"/>
  <xsd:element id="extr_ShareBasedCompensationArrangementByShareBasedPaymentAwardSharesVestedAsPercentageOfTarget" name="ShareBasedCompensationArrangementByShareBasedPaymentAwardSharesVestedAsPercentageOfTarget" type="dtr-types:percentItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false"/>
  <xsd:element id="extr_A401kPlanMember" name="A401kPlanMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="extr_ShareBasedCompensationArrangementByShareBasedPaymentAwardSharesVestedAsPercentageOfThreshold" name="ShareBasedCompensationArrangementByShareBasedPaymentAwardSharesVestedAsPercentageOfThreshold" type="dtr-types:percentItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false"/>
  <xsd:element id="extr_ExciseTaxOnStockRepurchases" name="ExciseTaxOnStockRepurchases" type="dtr-types:percentItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" nillable="true" abstract="false"/>
  <xsd:element id="extr_AllowanceForDoubtfulAccountsReceivableCurrentRollforward" name="AllowanceForDoubtfulAccountsReceivableCurrentRollforward" type="xbrli:stringItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false"/>
  <xsd:element id="extr_TaxImpactOfForeignEarnings" name="TaxImpactOfForeignEarnings" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false" xbrli:balance="debit"/>
  <xsd:element id="extr_IpanematechMember" name="IpanematechMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="extr_LongTermDebtNoncurrentGross" name="LongTermDebtNoncurrentGross" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" nillable="true" abstract="false" xbrli:balance="credit"/>
  <xsd:element id="extr_TrdArrSecuritiesAggAvailAmt" name="TrdArrSecuritiesAggAvailAmt" type="xbrli:sharesItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" nillable="true" abstract="false"/>
  <xsd:element id="extr_OtherAmericasMember" name="OtherAmericasMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="extr_ShareBasedCompensationArrangementByShareBasedPaymentAwardRelativeTSRAsDescriptionOfMaximum" name="ShareBasedCompensationArrangementByShareBasedPaymentAwardRelativeTSRAsDescriptionOfMaximum" type="xbrli:stringItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false"/>
  <xsd:element id="extr_CommitmentsAndContingenciesTable" name="CommitmentsAndContingenciesTable" type="xbrli:stringItemType" substitutionGroup="xbrldt:hypercubeItem" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="extr_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCurrentLiabilitiesAccruedCompensationAndBenefits" name="BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCurrentLiabilitiesAccruedCompensationAndBenefits" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" nillable="true" abstract="false" xbrli:balance="credit"/>
  <xsd:element id="extr_AllowanceForProductReturnsCurrent" name="AllowanceForProductReturnsCurrent" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" nillable="true" abstract="false" xbrli:balance="credit"/>
  <xsd:element id="extr_LesseeOperatingLeaseLiabilityPaymentsDueLeasesNotYetCommenced" name="LesseeOperatingLeaseLiabilityPaymentsDueLeasesNotYetCommenced" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" nillable="true" abstract="false" xbrli:balance="credit"/>
  <xsd:element id="extr_ImpairmentOfRightOfUseAssets" name="ImpairmentOfRightOfUseAssets" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false" xbrli:balance="debit"/>
  <xsd:element id="extr_Rule10B51ArrAdoptedFlag" name="Rule10B51ArrAdoptedFlag" type="xbrli:booleanItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false"/>
  <xsd:element id="extr_FiniteAndIndefiniteLivedIntangibleAssetsLineItems" name="FiniteAndIndefiniteLivedIntangibleAssetsLineItems" type="xbrli:stringItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="extr_ShareBasedCompensationArrangementByShareBasedPaymentAwardMaximumNumberOfSharesIssuedOnEachPurchasePeriod" name="ShareBasedCompensationArrangementByShareBasedPaymentAwardMaximumNumberOfSharesIssuedOnEachPurchasePeriod" type="xbrli:sharesItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false"/>
  <xsd:element id="extr_DerivativeMaturityMonthYear" name="DerivativeMaturityMonthYear" type="xbrli:gYearMonthItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false"/>
  <xsd:element id="extr_TwoThousandAndTwentyReductionInForcePlanMember" name="TwoThousandAndTwentyReductionInForcePlanMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="extr_TwoThousandEighteenCreditAgreementMember" name="TwoThousandEighteenCreditAgreementMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="extr_CostOfProductRevenueMember" name="CostOfProductRevenueMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="extr_SuspensionPeriodRate" name="SuspensionPeriodRate" type="dtr-types:percentItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false"/>
  <xsd:element id="extr_ContractWithCustomerLiabilityPolicyTextBlock" name="ContractWithCustomerLiabilityPolicyTextBlock" type="dtr-types:textBlockItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false"/>
  <xsd:element id="extr_BusinessCombinationAccretionOnDiscount" name="BusinessCombinationAccretionOnDiscount" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false" xbrli:balance="debit"/>
  <xsd:element id="extr_LineOfCreditAdditionalIncrementalLoanFacility" name="LineOfCreditAdditionalIncrementalLoanFacility" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" nillable="true" abstract="false" xbrli:balance="credit"/>
  <xsd:element id="extr_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsReleasedInPeriod" name="ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsReleasedInPeriod" type="xbrli:sharesItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false"/>
  <xsd:element id="extr_EmployeeStockPurchasePlanMember" name="EmployeeStockPurchasePlanMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="extr_NumberOfEmployeeAffected" name="NumberOfEmployeeAffected" type="xbrli:integerItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false"/>
  <xsd:element id="extr_ServiceAndSubscriptionMember" name="ServiceAndSubscriptionMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="extr_TwoThousandThirteenEquityIncentivePlanSharesAvailableForGrantMember" name="TwoThousandThirteenEquityIncentivePlanSharesAvailableForGrantMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="extr_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedInPeriodAggregateFairMarketValue" name="ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedInPeriodAggregateFairMarketValue" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" nillable="true" abstract="false" xbrli:balance="debit"/>
  <xsd:element id="extr_NonCancelableInventoryMember" name="NonCancelableInventoryMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="extr_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCurrentLiabilitiesAccruedWarranty" name="BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCurrentLiabilitiesAccruedWarranty" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" nillable="true" abstract="false" xbrli:balance="credit"/>
  <xsd:element id="extr_DebtInstrumentBaseRate" name="DebtInstrumentBaseRate" type="dtr-types:percentItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false"/>
  <xsd:element id="extr_TrdArrAdoptionDate" name="TrdArrAdoptionDate" type="xbrli:stringItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false"/>
  <xsd:element id="extr_FacilityRelatedCharges" name="FacilityRelatedCharges" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false" xbrli:balance="debit"/>
  <xsd:element id="extr_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsExpectedToVestOutstandingNumber" name="ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsExpectedToVestOutstandingNumber" type="xbrli:sharesItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" nillable="true" abstract="false"/>
  <xsd:element id="extr_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsReleasedInPeriodWeightedAverageGrantDateFairValue" name="ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsReleasedInPeriodWeightedAverageGrantDateFairValue" type="dtr-types:perShareItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false"/>
  <xsd:element id="extr_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedNetTangibleLiabilities" name="BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedNetTangibleLiabilities" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" nillable="true" abstract="false" xbrli:balance="credit"/>
  <xsd:element id="extr_ShareBasedCompensationArrangementByShareBasedPaymentAwardPercentOfMarketPrice" name="ShareBasedCompensationArrangementByShareBasedPaymentAwardPercentOfMarketPrice" type="dtr-types:percentItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false"/>
  <xsd:element id="extr_AllowanceForProductReturnsMember" name="AllowanceForProductReturnsMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="extr_TwoThousandTwentyOneTaxBenefitPreservationPlanMember" name="TwoThousandTwentyOneTaxBenefitPreservationPlanMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="extr_AllowanceForProductReturnsPolicyPolicyTextBlock" name="AllowanceForProductReturnsPolicyPolicyTextBlock" type="dtr-types:textBlockItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false"/>
  <xsd:element id="extr_ChangeInUnrealizedGainsAndLossesOnForeignCurrencyForwardContractsHedgingInstruments" name="ChangeInUnrealizedGainsAndLossesOnForeignCurrencyForwardContractsHedgingInstruments" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false" xbrli:balance="credit"/>
  <xsd:element id="extr_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsNumberOfSharesTransferred" name="ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsNumberOfSharesTransferred" type="xbrli:sharesItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" nillable="true" abstract="false"/>
  <xsd:element id="extr_GoodwillAmortization" name="GoodwillAmortization" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false" xbrli:balance="debit"/>
  <xsd:element id="extr_DeferredTaxAssetsAndLiabilitiesOtherDisclosuresAbstract" name="DeferredTaxAssetsAndLiabilitiesOtherDisclosuresAbstract" type="xbrli:stringItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="extr_StockRepurchaseProgramAuthorizedRepurchaseAmountPerQuarter" name="StockRepurchaseProgramAuthorizedRepurchaseAmountPerQuarter" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" nillable="true" abstract="false" xbrli:balance="debit"/>
  <xsd:element id="extr_FairValueAssetsLevel1ToLevel2TransferAmount" name="FairValueAssetsLevel1ToLevel2TransferAmount" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" nillable="true" abstract="false" xbrli:balance="credit"/>
  <xsd:element id="extr_ScheduleOfActivityAndOtherInformationRelatingToOperatingLeasesTableTextBlock" name="ScheduleOfActivityAndOtherInformationRelatingToOperatingLeasesTableTextBlock" type="dtr-types:textBlockItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false"/>
  <xsd:element id="extr_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCurrentLiabilitiesOperatingLeaseLiabilities" name="BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCurrentLiabilitiesOperatingLeaseLiabilities" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" nillable="true" abstract="false" xbrli:balance="credit"/>
  <xsd:element id="extr_SharebasedCompensationArrangementBySharebasedPaymentAwardDecreaseInSharesAvailableForGrantForEachFullValueAward" name="SharebasedCompensationArrangementBySharebasedPaymentAwardDecreaseInSharesAvailableForGrantForEachFullValueAward" type="dtr-types:percentItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false"/>
  <xsd:element id="extr_CommitmentsAndContingenciesLineItems" name="CommitmentsAndContingenciesLineItems" type="xbrli:stringItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="extr_DerivativeOutstandingAmount" name="DerivativeOutstandingAmount" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" nillable="true" abstract="false" xbrli:balance="credit"/>
  <xsd:element id="extr_JenneIncMember" name="JenneIncMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="extr_BacklogMember" name="BacklogMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="extr_SecondAmendedAndRestatedCreditAgreementMember" name="SecondAmendedAndRestatedCreditAgreementMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="extr_TaxCreditCarryforwardsSubjectToExpirationOneMember" name="TaxCreditCarryforwardsSubjectToExpirationOneMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="extr_CostOfServiceAndSubscriptionRevenueMember" name="CostOfServiceAndSubscriptionRevenueMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="extr_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantedInPeriodTotalFairValue" name="ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantedInPeriodTotalFairValue" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false" xbrli:balance="debit"/>
  <xsd:element id="extr_MinimumPercentageOfTaxBenefitRealizedUponSettlement" name="MinimumPercentageOfTaxBenefitRealizedUponSettlement" type="dtr-types:percentItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" nillable="true" abstract="false"/>
  <xsd:element id="extr_EarningPerShareBasicAndDilutedAbstract" name="EarningPerShareBasicAndDilutedAbstract" type="xbrli:stringItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="extr_LongTermDebtCurrentGross" name="LongTermDebtCurrentGross" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" nillable="true" abstract="false" xbrli:balance="credit"/>
  <xsd:element id="extr_OtherForeignCountryMember" name="OtherForeignCountryMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="extr_PaymentsForTaxWithholdingsNetOfProceedsFromIssuanceOfCommonStock" name="PaymentsForTaxWithholdingsNetOfProceedsFromIssuanceOfCommonStock" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false" xbrli:balance="credit"/>
  <xsd:element id="extr_AerohiveNetworksIncMember" name="AerohiveNetworksIncMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="extr_StockRepurchasedAveragePricePerShare" name="StockRepurchasedAveragePricePerShare" type="dtr-types:perShareItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false"/>
  <xsd:element id="extr_ExecutiveOfficersAndOrDirectorsMember" name="ExecutiveOfficersAndOrDirectorsMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="extr_ReductionInCarryingAmountOfRightOfUseAsset" name="ReductionInCarryingAmountOfRightOfUseAsset" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false" xbrli:balance="debit"/>
  <xsd:element id="extr_OfficeEquipmentFurnitureAndFixturesMember" name="OfficeEquipmentFurnitureAndFixturesMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="extr_MtrlTermsOfTrdArr2TextBlock" name="MtrlTermsOfTrdArr2TextBlock" type="dtr-types:textBlockItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false"/>
  <xsd:element id="extr_CustomerRebates" name="CustomerRebates" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" nillable="true" abstract="false" xbrli:balance="credit"/>
  <xsd:element id="extr_IncomeTaxReconciliationNondeductibleExpenseAlternativeMinimumTaxCreditMonetization" name="IncomeTaxReconciliationNondeductibleExpenseAlternativeMinimumTaxCreditMonetization" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false" xbrli:balance="credit"/>
  <xsd:element id="extr_ContractWithCustomerMultipleDeliverableArrangementsDeterminationOfSellingPriceMethod" name="ContractWithCustomerMultipleDeliverableArrangementsDeterminationOfSellingPriceMethod" type="xbrli:stringItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false"/>
  <xsd:element id="extr_FacilityImpairmentMember" name="FacilityImpairmentMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="extr_FairValueAssetsLevel2ToLevel3TransfersAmount" name="FairValueAssetsLevel2ToLevel3TransfersAmount" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" nillable="true" abstract="false" xbrli:balance="credit"/>
  <xsd:element id="extr_DeferredTaxAssetsCapitalizationOfResearchAndDevelopment" name="DeferredTaxAssetsCapitalizationOfResearchAndDevelopment" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" nillable="true" abstract="false" xbrli:balance="debit"/>
  <xsd:element id="extr_DebtInstrumentSpreadAdjustment" name="DebtInstrumentSpreadAdjustment" type="dtr-types:percentItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false"/>
  <xsd:element id="extr_ShareBasedCompensationArrangementByShareBasedPaymentAwardSharesVestedAsPercentageOfMaximum" name="ShareBasedCompensationArrangementByShareBasedPaymentAwardSharesVestedAsPercentageOfMaximum" type="dtr-types:percentItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false"/>
  <xsd:element id="extr_ScheduleOfSignificantAccountingPoliciesTable" name="ScheduleOfSignificantAccountingPoliciesTable" type="xbrli:stringItemType" substitutionGroup="xbrldt:hypercubeItem" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="extr_ReclassificationToReduceOperatingLeaseAssets" name="ReclassificationToReduceOperatingLeaseAssets" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false" xbrli:balance="debit"/>
  <xsd:element id="extr_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCurrentAssetsShortTermInvestments" name="BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCurrentAssetsShortTermInvestments" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" nillable="true" abstract="false" xbrli:balance="debit"/>
  <xsd:element id="extr_FiniteLivedIntangibleAssetsWeightedAverageRemainingAmortizationPeriod" name="FiniteLivedIntangibleAssetsWeightedAverageRemainingAmortizationPeriod" type="xbrli:durationItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false"/>
  <xsd:element id="extr_DeferredTaxLiabilitiesOperatingLeaseRightOfUseAssets" name="DeferredTaxLiabilitiesOperatingLeaseRightOfUseAssets" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" nillable="true" abstract="false" xbrli:balance="credit"/>
  <xsd:element id="extr_OtherComprehensiveIncomeLossCashFlowHedgeGainLossReclassificationNetOfTax" name="OtherComprehensiveIncomeLossCashFlowHedgeGainLossReclassificationNetOfTax" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false" xbrli:balance="debit"/>
  <xsd:element id="extr_LineOfCreditFacilityOutstandingBalance" name="LineOfCreditFacilityOutstandingBalance" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" nillable="true" abstract="false" xbrli:balance="credit"/>
  <xsd:element id="extr_TwoThousandFourteenEmployeeStockPurchasePlanMember" name="TwoThousandFourteenEmployeeStockPurchasePlanMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="extr_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsAggregateIntrinsicValueAbstract" name="ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsAggregateIntrinsicValueAbstract" type="xbrli:stringItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="extr_BusinessCombinationReplacementOfStockBasedAwards" name="BusinessCombinationReplacementOfStockBasedAwards" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false" xbrli:balance="credit"/>
  <xsd:element id="extr_BusinessCombinationAcquisitionCompensationCharge" name="BusinessCombinationAcquisitionCompensationCharge" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false" xbrli:balance="debit"/>
  <xsd:element id="extr_StockRepurchaseProgramIncreaseInAuthorizedAmount" name="StockRepurchaseProgramIncreaseInAuthorizedAmount" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" nillable="true" abstract="false" xbrli:balance="credit"/>
  <xsd:element id="extr_ShareBasedCompensationArrangementByShareBasedPaymentAwardRelativeTSRAsDescriptionOfThreshold" name="ShareBasedCompensationArrangementByShareBasedPaymentAwardRelativeTSRAsDescriptionOfThreshold" type="xbrli:stringItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false"/>
  <xsd:element id="extr_ScheduleOfFiniteAndIndefiniteLivedIntangibleAssetsTable" name="ScheduleOfFiniteAndIndefiniteLivedIntangibleAssetsTable" type="xbrli:stringItemType" substitutionGroup="xbrldt:hypercubeItem" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="extr_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsWeightedAverageRemainingContractualTermAbstractAbstract" name="ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsWeightedAverageRemainingContractualTermAbstractAbstract" type="xbrli:stringItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="extr_InitialTermLoanMember" name="InitialTermLoanMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="extr_SaaSSupportAndMaintenanceArrangementMember" name="SaaSSupportAndMaintenanceArrangementMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="extr_TwoThousandTwentyThreeCreditAgreementMember" name="TwoThousandTwentyThreeCreditAgreementMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="extr_ForeignWithholdingTaxes" name="ForeignWithholdingTaxes" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false" xbrli:balance="debit"/>
  <xsd:element id="extr_StockAwardsMember" name="StockAwardsMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="extr_NumberOfGeographicWithinOperatingSegment" name="NumberOfGeographicWithinOperatingSegment" type="xbrli:integerItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false"/>
  <xsd:element id="extr_MaximumNumberOfSharesAvailableForSaleUnderStockPurchasePlan" name="MaximumNumberOfSharesAvailableForSaleUnderStockPurchasePlan" type="xbrli:sharesItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false"/>
  <xsd:element id="extr_AdjustmentsToAdditionalPaidInCapitalStockAwardsGrantedInConnectionWithAcquisition" name="AdjustmentsToAdditionalPaidInCapitalStockAwardsGrantedInConnectionWithAcquisition" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false" xbrli:balance="credit"/>
  <xsd:element id="extr_LineOfCreditAdditionalIncrementalLoanFacilityThatMayBeRequested" name="LineOfCreditAdditionalIncrementalLoanFacilityThatMayBeRequested" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" nillable="true" abstract="false" xbrli:balance="credit"/>
  <xsd:element id="extr_TwoThousandNineteenCreditAgreementMember" name="TwoThousandNineteenCreditAgreementMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="extr_IncreaseDecreaseInOperatingLeaseLiabilities" name="IncreaseDecreaseInOperatingLeaseLiabilities" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false" xbrli:balance="debit"/>
  <xsd:element id="extr_IncomeTaxReconciliationNondeductibleExpenseOfficerCompensation" name="IncomeTaxReconciliationNondeductibleExpenseOfficerCompensation" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false" xbrli:balance="debit"/>
  <xsd:element id="extr_FairValueLiabilityLevel1ToLevel2TransferAmount" name="FairValueLiabilityLevel1ToLevel2TransferAmount" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" nillable="true" abstract="false" xbrli:balance="debit"/>
  <xsd:element id="extr_EmployeeStockPurchasePlanEsppPlanDescriptionMaximumOfferingPeriod" name="EmployeeStockPurchasePlanEsppPlanDescriptionMaximumOfferingPeriod" type="xbrli:durationItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false"/>
  <xsd:element id="extr_ShareBasedCompensationArrangementByShareBasedPaymentAwardRelativeTSRAsDescriptionOfTarget" name="ShareBasedCompensationArrangementByShareBasedPaymentAwardRelativeTSRAsDescriptionOfTarget" type="xbrli:stringItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false"/>
  <xsd:element id="extr_DepreciationExpenseExcludingDepreciationOfRoyaltyAssets" name="DepreciationExpenseExcludingDepreciationOfRoyaltyAssets" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false" xbrli:balance="debit"/>
  <xsd:element id="extr_DefinedContributionPlanAdditionalAnnualContributionPerEmployeeOverAgeOfFiftyAmount" name="DefinedContributionPlanAdditionalAnnualContributionPerEmployeeOverAgeOfFiftyAmount" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false" xbrli:balance="debit"/>
  <xsd:element id="extr_ScanSourceIncMember" name="ScanSourceIncMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="extr_EuroDollarRate" name="EuroDollarRate" type="dtr-types:percentItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" nillable="true" abstract="false"/>
  <xsd:element id="extr_SignificantAccountingPoliciesLineItems" name="SignificantAccountingPoliciesLineItems" type="xbrli:stringItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true"/>
  <xsd:element id="extr_DeferredTaxAssetsIntangibleAmortization" name="DeferredTaxAssetsIntangibleAmortization" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" nillable="true" abstract="false" xbrli:balance="debit"/>
</xsd:schema>
