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    <link:label id="lab_us-gaap_NetCashProvidedByUsedInInvestingActivities_3DAC8AF891CF132750F8E69B60DE7EB2_totalLabel_en-US" xlink:label="lab_us-gaap_NetCashProvidedByUsedInInvestingActivities_3DAC8AF891CF132750F8E69B60DE7EB2" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:type="resource" xml:lang="en-US">Net cash (used in) provided by investing activities</link:label>
    <link:label id="lab_us-gaap_NetCashProvidedByUsedInInvestingActivities_3DAC8AF891CF132750F8E69B60DE7EB2_label_en-US" xlink:label="lab_us-gaap_NetCashProvidedByUsedInInvestingActivities_3DAC8AF891CF132750F8E69B60DE7EB2" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Net Cash Provided by (Used in) Investing Activities</link:label>
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    <link:label id="lab_us-gaap_PaymentsRelatedToTaxWithholdingForShareBasedCompensation_49F2648DCA16369CA4DFE69B60DF1C9C_negatedLabel_en-US" xlink:label="lab_us-gaap_PaymentsRelatedToTaxWithholdingForShareBasedCompensation_49F2648DCA16369CA4DFE69B60DF1C9C" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:type="resource" xml:lang="en-US">Withholding tax payment on vesting of restricted stock awards</link:label>
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    <link:label id="lab_viav_PaymentsForFailedSaleLeasebackAndCapitalLease_36478D2ABE2A11F9BCB3E6BEC1667C2C_negatedLabel_en-US" xlink:label="lab_viav_PaymentsForFailedSaleLeasebackAndCapitalLease_36478D2ABE2A11F9BCB3E6BEC1667C2C" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:type="resource" xml:lang="en-US">Payment of financing obligations</link:label>
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    <link:label id="lab_us-gaap_ProceedsFromStockPlans_B6062F858C5C3CF23328E69B60E07F84_terseLabel_en-US" xlink:label="lab_us-gaap_ProceedsFromStockPlans_B6062F858C5C3CF23328E69B60E07F84" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Proceeds from exercise of employee stock purchase plan</link:label>
    <link:label id="lab_us-gaap_ProceedsFromStockPlans_B6062F858C5C3CF23328E69B60E07F84_label_en-US" xlink:label="lab_us-gaap_ProceedsFromStockPlans_B6062F858C5C3CF23328E69B60E07F84" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Proceeds from Stock Plans</link:label>
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    <link:label id="lab_us-gaap_NetCashProvidedByUsedInFinancingActivities_77C589FAA3B965D1DE66E69B60E0B260_totalLabel_en-US" xlink:label="lab_us-gaap_NetCashProvidedByUsedInFinancingActivities_77C589FAA3B965D1DE66E69B60E0B260" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:type="resource" xml:lang="en-US">Net cash used in financing activities</link:label>
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    <link:label id="lab_us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents_5D067A5202086FDC9821E69B60E05AF7_label_en-US" xlink:label="lab_us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents_5D067A5202086FDC9821E69B60E05AF7" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Cash, Cash Equivalents, Restricted Cash and Restricted Cash Equivalents</link:label>
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    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents_5D067A5202086FDC9821E69B60E05AF7" xlink:to="lab_us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents_5D067A5202086FDC9821E69B60E05AF7" xlink:type="arc" />
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    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents" xlink:label="loc_us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents_B584A81B090B29FDE478E69B60E0F028" xlink:type="locator" />
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    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_GoodwillAndIntangibleAssetsDisclosureAbstract" xlink:label="loc_us-gaap_GoodwillAndIntangibleAssetsDisclosureAbstract_29184C128034508EBA83CD1872B0DA62" xlink:type="locator" />
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    <link:label id="lab_us-gaap_ScheduleOfGoodwillTable_8BE8D3DED17314A8837A13E258C54A28_label_en-US" xlink:label="lab_us-gaap_ScheduleOfGoodwillTable_FBADDF1057F254529785A76B128407DB" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Schedule of Goodwill [Table]</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_ScheduleOfGoodwillTable" xlink:label="loc_us-gaap_ScheduleOfGoodwillTable_FBADDF1057F254529785A76B128407DB" xlink:type="locator" />
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    <link:label id="lab_us-gaap_StatementBusinessSegmentsAxis_F80E15C34115A43710B013E258C62C4B_label_en-US" xlink:label="lab_us-gaap_StatementBusinessSegmentsAxis_FAB5C85DD88A53328A1026723FB269AF" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Segments [Axis]</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_StatementBusinessSegmentsAxis" xlink:label="loc_us-gaap_StatementBusinessSegmentsAxis_FAB5C85DD88A53328A1026723FB269AF" xlink:type="locator" />
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    <link:label id="lab_us-gaap_SegmentDomain_6E4413479A621618A1B013E258C63A74_terseLabel_en-US" xlink:label="lab_us-gaap_SegmentDomain_4B5F251ACFE35107A8D377D643411870" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Segments [Domain]</link:label>
    <link:label id="lab_us-gaap_SegmentDomain_6E4413479A621618A1B013E258C63A74_label_en-US" xlink:label="lab_us-gaap_SegmentDomain_4B5F251ACFE35107A8D377D643411870" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Segments [Domain]</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_SegmentDomain" xlink:label="loc_us-gaap_SegmentDomain_4B5F251ACFE35107A8D377D643411870" xlink:type="locator" />
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    <link:label id="lab_viav_NetworkEnablementMember_E411C918CF8402AE3BFD13E258C65B0C_terseLabel_en-US" xlink:label="lab_viav_NetworkEnablementMember_C87AFDBFC04B56B78803E9692A0C5B39" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Network Enablement</link:label>
    <link:label id="lab_viav_NetworkEnablementMember_E411C918CF8402AE3BFD13E258C65B0C_label_en-US" xlink:label="lab_viav_NetworkEnablementMember_C87AFDBFC04B56B78803E9692A0C5B39" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Network Enablement [Member]</link:label>
    <link:label id="lab_viav_NetworkEnablementMember_E411C918CF8402AE3BFD13E258C65B0C_documentation_en-US" xlink:label="lab_viav_NetworkEnablementMember_C87AFDBFC04B56B78803E9692A0C5B39" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Represents information pertaining to the Network Enablement, a reportable segment of the entity.</link:label>
    <link:loc xlink:href="viav-20200328.xsd#viav_NetworkEnablementMember" xlink:label="loc_viav_NetworkEnablementMember_C87AFDBFC04B56B78803E9692A0C5B39" xlink:type="locator" />
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    <link:label id="lab_viav_ServiceEnablementMember_1FA317B598BB5E755B8E13E258C76255_terseLabel_en-US" xlink:label="lab_viav_ServiceEnablementMember_FAE65C4DCCF958B8AFB40548881EAF10" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Service Enablement</link:label>
    <link:label id="lab_viav_ServiceEnablementMember_1FA317B598BB5E755B8E13E258C76255_label_en-US" xlink:label="lab_viav_ServiceEnablementMember_FAE65C4DCCF958B8AFB40548881EAF10" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Service Enablement [Member]</link:label>
    <link:label id="lab_viav_ServiceEnablementMember_1FA317B598BB5E755B8E13E258C76255_documentation_en-US" xlink:label="lab_viav_ServiceEnablementMember_FAE65C4DCCF958B8AFB40548881EAF10" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Represents information pertaining to the Service Enablement, a reportable segment of the entity.</link:label>
    <link:loc xlink:href="viav-20200328.xsd#viav_ServiceEnablementMember" xlink:label="loc_viav_ServiceEnablementMember_FAE65C4DCCF958B8AFB40548881EAF10" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_viav_ServiceEnablementMember_FAE65C4DCCF958B8AFB40548881EAF10" xlink:to="lab_viav_ServiceEnablementMember_FAE65C4DCCF958B8AFB40548881EAF10" xlink:type="arc" />
    <link:label id="lab_viav_OpticalSecurityAndPerformanceProductsBusinessSegmentMember_E7A65C19796A6D4C97DC13E258C7B26A_terseLabel_en-US" xlink:label="lab_viav_OpticalSecurityAndPerformanceProductsBusinessSegmentMember_F08A38984A9E53B5ADE7591082FE53EA" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Optical Security and Performance Products</link:label>
    <link:label id="lab_viav_OpticalSecurityAndPerformanceProductsBusinessSegmentMember_E7A65C19796A6D4C97DC13E258C7B26A_label_en-US" xlink:label="lab_viav_OpticalSecurityAndPerformanceProductsBusinessSegmentMember_F08A38984A9E53B5ADE7591082FE53EA" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Optical Security and Performance Products Business Segment [Member]</link:label>
    <link:label id="lab_viav_OpticalSecurityAndPerformanceProductsBusinessSegmentMember_E7A65C19796A6D4C97DC13E258C7B26A_documentation_en-US" xlink:label="lab_viav_OpticalSecurityAndPerformanceProductsBusinessSegmentMember_F08A38984A9E53B5ADE7591082FE53EA" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Represents the Optical Security and Performance Products reportable segment ("OSP") of the entity. OSP replaced the previous Advanced Optical Technologies reportable segment ("AOT") and its reporting units which were merged into the new OSP reportable segment during the first quarter of fiscal 2013.</link:label>
    <link:loc xlink:href="viav-20200328.xsd#viav_OpticalSecurityAndPerformanceProductsBusinessSegmentMember" xlink:label="loc_viav_OpticalSecurityAndPerformanceProductsBusinessSegmentMember_F08A38984A9E53B5ADE7591082FE53EA" xlink:type="locator" />
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    <link:label id="lab_us-gaap_GoodwillLineItems_6F22E22D3237E6F5B29B13E258C7E9B8_terseLabel_en-US" xlink:label="lab_us-gaap_GoodwillLineItems_A1850D8310055FB08250A0F1EF273111" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Goodwill</link:label>
    <link:label id="lab_us-gaap_GoodwillLineItems_6F22E22D3237E6F5B29B13E258C7E9B8_label_en-US" xlink:label="lab_us-gaap_GoodwillLineItems_A1850D8310055FB08250A0F1EF273111" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Goodwill [Line Items]</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_GoodwillLineItems" xlink:label="loc_us-gaap_GoodwillLineItems_A1850D8310055FB08250A0F1EF273111" xlink:type="locator" />
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    <link:label id="lab_us-gaap_GoodwillRollForward_9346B921B39F475D780F13E258C794B5_terseLabel_en-US" xlink:label="lab_us-gaap_GoodwillRollForward_F492441F50C055B4B28305573B8F22CD" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Changes in goodwill</link:label>
    <link:label id="lab_us-gaap_GoodwillRollForward_9346B921B39F475D780F13E258C794B5_label_en-US" xlink:label="lab_us-gaap_GoodwillRollForward_F492441F50C055B4B28305573B8F22CD" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Goodwill [Roll Forward]</link:label>
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    <link:label id="lab_us-gaap_Goodwill_3713604FA318B05225F613E258C75695_periodStartLabel_en-US" xlink:label="lab_us-gaap_Goodwill_E73C08EF86E25904979ACC9863CD4131" xlink:role="http://www.xbrl.org/2003/role/periodStartLabel" xlink:type="resource" xml:lang="en-US">Balance at the beginning of the period</link:label>
    <link:label id="lab_us-gaap_Goodwill_3713604FA318B05225F613E258C75695_label_en-US" xlink:label="lab_us-gaap_Goodwill_E73C08EF86E25904979ACC9863CD4131" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Goodwill</link:label>
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    <link:label id="lab_us-gaap_Goodwill_92FF41610AD93677175013E258C87D8D_periodEndLabel_en-US" xlink:label="lab_us-gaap_Goodwill_4B75650818FD5FF099D91391ECC67843" xlink:role="http://www.xbrl.org/2003/role/periodEndLabel" xlink:type="resource" xml:lang="en-US">Balance at the end of the period</link:label>
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    <link:label id="lab_us-gaap_LeasesAbstract_AD4E49B6484EB493457D173A3A627D1E_label_en-US" xlink:label="lab_us-gaap_LeasesAbstract_4086B4E02AB35D9AA802F2939A525DD3" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Leases [Abstract]</link:label>
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    <link:label id="lab_us-gaap_LesseeOperatingLeaseLiabilityUndiscountedExcessAmount_2FF10C83B23C2F05DD5E27B9742BEBCA_negatedLabel_en-US" xlink:label="lab_us-gaap_LesseeOperatingLeaseLiabilityUndiscountedExcessAmount_633BECAD017153E48CC91A5CF3394D51" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:type="resource" xml:lang="en-US">Less: Interest</link:label>
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    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_OperatingLeaseLiability" xlink:label="loc_us-gaap_OperatingLeaseLiability_7C0B080EBA3A5BB59E2DE3D40516E3E2" xlink:type="locator" />
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    <link:label id="lab_us-gaap_GoodwillDisclosureTextBlock_C965BDD20D19502BE2C74FB14E17B73D_label_en-US" xlink:label="lab_us-gaap_GoodwillDisclosureTextBlock_FF0AB25A0C245E529EDD5F2A79177B84" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Goodwill Disclosure [Text Block]</link:label>
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    <link:label id="lab_srt_SegmentGeographicalDomain_5DA48CA8EDBEF40CC56917E3D1C29228_label_en-US" xlink:label="lab_srt_SegmentGeographicalDomain_2C88064157FE5107813D15941FC578C3" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Geographical [Domain]</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/srt/2019/elts/srt-2019-01-31.xsd#srt_SegmentGeographicalDomain" xlink:label="loc_srt_SegmentGeographicalDomain_2C88064157FE5107813D15941FC578C3" xlink:type="locator" />
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    <link:label id="lab_country_US_947C7FDC11D34E12C94B17E3D1C24DFB_terseLabel_en-US" xlink:label="lab_country_US_42B7981F779D506DB2FF7A7AB17FC6AA" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">United States</link:label>
    <link:label id="lab_country_US_947C7FDC11D34E12C94B17E3D1C24DFB_label_en-US" xlink:label="lab_country_US_42B7981F779D506DB2FF7A7AB17FC6AA" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">UNITED STATES</link:label>
    <link:loc xlink:href="https://xbrl.sec.gov/country/2017/country-2017-01-31.xsd#country_US" xlink:label="loc_country_US_42B7981F779D506DB2FF7A7AB17FC6AA" xlink:type="locator" />
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    <link:label id="lab_viav_OtherAmericasMember_5CEFAB39E9CA61C04C1017E3D1C4BA8B_terseLabel_en-US" xlink:label="lab_viav_OtherAmericasMember_951D744997195D439120DAC98AE6A51B" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Other Americas</link:label>
    <link:label id="lab_viav_OtherAmericasMember_5CEFAB39E9CA61C04C1017E3D1C4BA8B_label_en-US" xlink:label="lab_viav_OtherAmericasMember_951D744997195D439120DAC98AE6A51B" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Other Americas [Member]</link:label>
    <link:label id="lab_viav_OtherAmericasMember_5CEFAB39E9CA61C04C1017E3D1C4BA8B_documentation_en-US" xlink:label="lab_viav_OtherAmericasMember_951D744997195D439120DAC98AE6A51B" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Represents the region of the Americas other than the United States, where the entity operates.</link:label>
    <link:loc xlink:href="viav-20200328.xsd#viav_OtherAmericasMember" xlink:label="loc_viav_OtherAmericasMember_951D744997195D439120DAC98AE6A51B" xlink:type="locator" />
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    <link:label id="lab_srt_AmericasMember_DEB22389955007ECF56617E3D1C49C8E_terseLabel_en-US" xlink:label="lab_srt_AmericasMember_2B01037FEB0251DD8E1C8F8F7605916D" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Total Americas</link:label>
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    <link:label id="lab_country_CN_88E8FB34FEC0F68D139017E3D1C52D38_terseLabel_en-US" xlink:label="lab_country_CN_6CBD8FBAC8CF58BEAFA677151E5858D4" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Greater China</link:label>
    <link:label id="lab_country_CN_88E8FB34FEC0F68D139017E3D1C52D38_label_en-US" xlink:label="lab_country_CN_6CBD8FBAC8CF58BEAFA677151E5858D4" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">CHINA</link:label>
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    <link:label id="lab_viav_OtherAsiaPacificMember_2DA1671ED16CA863092F17E3D1C5E605_terseLabel_en-US" xlink:label="lab_viav_OtherAsiaPacificMember_2CEC585AA09D5313A67D2D0A9EF698FC" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Other Asia-Pacific</link:label>
    <link:label id="lab_viav_OtherAsiaPacificMember_2DA1671ED16CA863092F17E3D1C5E605_label_en-US" xlink:label="lab_viav_OtherAsiaPacificMember_2CEC585AA09D5313A67D2D0A9EF698FC" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Other Asia Pacific [Member]</link:label>
    <link:label id="lab_viav_OtherAsiaPacificMember_2DA1671ED16CA863092F17E3D1C5E605_documentation_en-US" xlink:label="lab_viav_OtherAsiaPacificMember_2CEC585AA09D5313A67D2D0A9EF698FC" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Represents the entire Asia-Pacific region other than China, where the entity operates.</link:label>
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    <link:label id="lab_srt_AsiaPacificMember_541D974D0B59403FFE1C17E3D1C5CA4C_terseLabel_en-US" xlink:label="lab_srt_AsiaPacificMember_CA72F7164C855D1197C2467515F59F0F" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Total Asia-Pacific</link:label>
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    <link:label id="lab_viav_OtherEMEAMember_17D0F2E0FCD53AFBF2CB17E3D1C54995_terseLabel_en-US" xlink:label="lab_viav_OtherEMEAMember_ECA904030EFB5AD0BC1E390F76F7E511" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Other EMEA</link:label>
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    <link:label id="lab_us-gaap_LossContingencyNatureDomain_A8897DDE495458E601BA145633BF2CAE_label_en-US" xlink:label="lab_us-gaap_LossContingencyNatureDomain_A7395045924954E3BF0798D0A673AC55" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Loss Contingency, Nature [Domain]</link:label>
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    <link:label id="lab_us-gaap_PerformanceGuaranteeMember_B3B007158EAE629CC8FB145633BF80FD_terseLabel_en-US" xlink:label="lab_us-gaap_PerformanceGuaranteeMember_E6FC17A12A645D1AB20C19ED3A047272" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Performance bond</link:label>
    <link:label id="lab_us-gaap_PerformanceGuaranteeMember_B3B007158EAE629CC8FB145633BF80FD_label_en-US" xlink:label="lab_us-gaap_PerformanceGuaranteeMember_E6FC17A12A645D1AB20C19ED3A047272" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Performance Guarantee [Member]</link:label>
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    <link:label id="lab_us-gaap_LossContingenciesLineItems_A61F00B83A6C76593AFE145633BFDBC3_label_en-US" xlink:label="lab_us-gaap_LossContingenciesLineItems_831BF18B8C3054EAB4F7C04E491AED97" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Loss Contingencies [Line Items]</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_LossContingenciesLineItems" xlink:label="loc_us-gaap_LossContingenciesLineItems_831BF18B8C3054EAB4F7C04E491AED97" xlink:type="locator" />
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    <link:label id="lab_us-gaap_LossContingencyEstimateOfPossibleLoss_E7F2B3F430689C5DE35C145633BF5D5E_terseLabel_en-US" xlink:label="lab_us-gaap_LossContingencyEstimateOfPossibleLoss_B4C20CA8FD7F5027961B4614841058EA" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Estimated liability (in pounds)</link:label>
    <link:label id="lab_us-gaap_LossContingencyEstimateOfPossibleLoss_E7F2B3F430689C5DE35C145633BF5D5E_label_en-US" xlink:label="lab_us-gaap_LossContingencyEstimateOfPossibleLoss_B4C20CA8FD7F5027961B4614841058EA" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Loss Contingency, Estimate of Possible Loss</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_LossContingencyEstimateOfPossibleLoss" xlink:label="loc_us-gaap_LossContingencyEstimateOfPossibleLoss_B4C20CA8FD7F5027961B4614841058EA" xlink:type="locator" />
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    <link:label id="lab_us-gaap_LossContingencyAccrualAtCarryingValue_3B6301A75C47936D3D29145633C5891E_terseLabel_en-US" xlink:label="lab_us-gaap_LossContingencyAccrualAtCarryingValue_E52ABF8344EB5C6188FE6B79710A8D17" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Loss contingency accrual</link:label>
    <link:label id="lab_us-gaap_LossContingencyAccrualAtCarryingValue_3B6301A75C47936D3D29145633C5891E_label_en-US" xlink:label="lab_us-gaap_LossContingencyAccrualAtCarryingValue_E52ABF8344EB5C6188FE6B79710A8D17" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Loss Contingency Accrual</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_LossContingencyAccrualAtCarryingValue" xlink:label="loc_us-gaap_LossContingencyAccrualAtCarryingValue_E52ABF8344EB5C6188FE6B79710A8D17" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_LossContingencyAccrualAtCarryingValue_E52ABF8344EB5C6188FE6B79710A8D17" xlink:to="lab_us-gaap_LossContingencyAccrualAtCarryingValue_E52ABF8344EB5C6188FE6B79710A8D17" xlink:type="arc" />
    <link:label id="lab_us-gaap_GuaranteeObligationsCurrentCarryingValue_42816B72EFA6BF1B67CD145633C5889C_terseLabel_en-US" xlink:label="lab_us-gaap_GuaranteeObligationsCurrentCarryingValue_0DBFF389752F5E67A302444FC11A63F8" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Guarantee liabilities</link:label>
    <link:label id="lab_us-gaap_GuaranteeObligationsCurrentCarryingValue_42816B72EFA6BF1B67CD145633C5889C_label_en-US" xlink:label="lab_us-gaap_GuaranteeObligationsCurrentCarryingValue_0DBFF389752F5E67A302444FC11A63F8" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Guarantor Obligations, Current Carrying Value</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_GuaranteeObligationsCurrentCarryingValue" xlink:label="loc_us-gaap_GuaranteeObligationsCurrentCarryingValue_0DBFF389752F5E67A302444FC11A63F8" xlink:type="locator" />
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    <link:label id="lab_us-gaap_LettersOfCreditOutstandingAmount_CE33D7C37E2DEF929D9F145633C5A381_verboseLabel_en-US" xlink:label="lab_us-gaap_LettersOfCreditOutstandingAmount_AC740185F82051C6803B1587B5F4A2CA" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US">Standby letters of credit</link:label>
    <link:label id="lab_us-gaap_LettersOfCreditOutstandingAmount_CE33D7C37E2DEF929D9F145633C5A381_label_en-US" xlink:label="lab_us-gaap_LettersOfCreditOutstandingAmount_AC740185F82051C6803B1587B5F4A2CA" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Letters of Credit Outstanding, Amount</link:label>
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    <link:label id="lab_us-gaap_ProductWarrantiesDisclosuresAbstract_C2491CEBEA50CBF8ABFC145633C58155_terseLabel_en-US" xlink:label="lab_us-gaap_ProductWarrantiesDisclosuresAbstract_8ED668094EE55A2FB5605622C2E1E1B0" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Product Warranties</link:label>
    <link:label id="lab_us-gaap_ProductWarrantiesDisclosuresAbstract_C2491CEBEA50CBF8ABFC145633C58155_label_en-US" xlink:label="lab_us-gaap_ProductWarrantiesDisclosuresAbstract_8ED668094EE55A2FB5605622C2E1E1B0" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Product Warranties Disclosures [Abstract]</link:label>
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    <link:label id="lab_viav_StandardProductWarrantyTerm_364EBADA16FB602214CE145633C5E122_terseLabel_en-US" xlink:label="lab_viav_StandardProductWarrantyTerm_19595EAB3AD05DD0BE785BCEC08F9537" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Warranty Term for most products</link:label>
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    <link:label id="lab_viav_StandardProductWarrantyTerm_364EBADA16FB602214CE145633C5E122_documentation_en-US" xlink:label="lab_viav_StandardProductWarrantyTerm_19595EAB3AD05DD0BE785BCEC08F9537" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Represents the warranty period (in months) offered to general customers for most of the entity's products.</link:label>
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    <link:label id="lab_us-gaap_MovementInStandardProductWarrantyAccrualRollForward_3C1100BD7149AD1A1DF6145633C61226_terseLabel_en-US" xlink:label="lab_us-gaap_MovementInStandardProductWarrantyAccrualRollForward_335DDC0E3560537D89C1AD9AD4A7D3A9" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Changes in warranty reserve</link:label>
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    <link:label id="lab_us-gaap_ProductWarrantyAccrual_B14BF5EF781E253336C1145633C6CDED_periodStartLabel_en-US" xlink:label="lab_us-gaap_ProductWarrantyAccrual_7D41D774AE3555E5A59BDEDC03D0645E" xlink:role="http://www.xbrl.org/2003/role/periodStartLabel" xlink:type="resource" xml:lang="en-US">Balance as of beginning of period</link:label>
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    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_ProductWarrantyAccrual" xlink:label="loc_us-gaap_ProductWarrantyAccrual_7D41D774AE3555E5A59BDEDC03D0645E" xlink:type="locator" />
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    <link:label id="lab_us-gaap_ProductWarrantyAccrualWarrantiesIssued_957C014ED5FA3814CB8C145633C6F12F_terseLabel_en-US" xlink:label="lab_us-gaap_ProductWarrantyAccrualWarrantiesIssued_5A9515C80CDD5C399302E6EBFF6C383A" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Provision for warranty</link:label>
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    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_ProductWarrantyAccrualWarrantiesIssued" xlink:label="loc_us-gaap_ProductWarrantyAccrualWarrantiesIssued_5A9515C80CDD5C399302E6EBFF6C383A" xlink:type="locator" />
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    <link:label id="lab_viav_DebtInstrumentConvertibleCarryingAmountOfTheEquityComponentNet_D092E8FFBD9561A1DD33EE8079C0C55B_terseLabel_en-US" xlink:label="lab_viav_DebtInstrumentConvertibleCarryingAmountOfTheEquityComponentNet_01A9E7AC7DB15BE8BD8E362F9C705E99" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Carrying amount of equity component</link:label>
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    <link:label id="lab_viav_DebtInstrumentConvertibleCarryingAmountOfTheEquityComponentNet_D092E8FFBD9561A1DD33EE8079C0C55B_documentation_en-US" xlink:label="lab_viav_DebtInstrumentConvertibleCarryingAmountOfTheEquityComponentNet_01A9E7AC7DB15BE8BD8E362F9C705E99" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">The carrying amount of the equity component of convertible debt which may be settled in cash upon conversion, net of the debt issuance costs allocated to the equity component.</link:label>
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    <link:label id="lab_us-gaap_DebtInstrumentInterestRateStatedPercentage_323CD5B99EDFC57BBFD5EE8079C0E340_verboseLabel_en-US" xlink:label="lab_us-gaap_DebtInstrumentInterestRateStatedPercentage_6F3CEB5031D65DFEA0109693BCF07684" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US">Interest rate on senior convertible notes</link:label>
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    <link:label id="lab_us-gaap_AllowanceForCreditLossesOnFinancingReceivablesTableTextBlock_6E388CF3B831E47A8306A5FC7224131E_verboseLabel_en-US" xlink:label="lab_us-gaap_AllowanceForCreditLossesOnFinancingReceivablesTableTextBlock_6E388CF3B831E47A8306A5FC7224131E" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US">Schedule of Components of Accounts Receivable Allowance</link:label>
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    <link:label id="lab_us-gaap_ScheduleOfInventoryCurrentTableTextBlock_C2CCAAA264CE32C28E30A5FC722469CF_terseLabel_en-US" xlink:label="lab_us-gaap_ScheduleOfInventoryCurrentTableTextBlock_C2CCAAA264CE32C28E30A5FC722469CF" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Schedule of Components of Inventories</link:label>
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    <link:label id="lab_viav_RevenueFromContractWithCustomerPaymentPeriod_7BC51C9946006141FF74A17279F4DBCD_label_en-US" xlink:label="lab_viav_RevenueFromContractWithCustomerPaymentPeriod_7BC51C9946006141FF74A17279F4DBCD" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Revenue From Contract With Customer, Payment Period</link:label>
    <link:label id="lab_viav_RevenueFromContractWithCustomerPaymentPeriod_7BC51C9946006141FF74A17279F4DBCD_documentation_en-US" xlink:label="lab_viav_RevenueFromContractWithCustomerPaymentPeriod_7BC51C9946006141FF74A17279F4DBCD" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Revenue From Contract With Customer, Payment Period</link:label>
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    <link:label id="lab_viav_ContractWithCustomerAssetUnbilledReceivablesCurrent_EDD41F507DF4802C8E1DA17279F4B447_terseLabel_en-US" xlink:label="lab_viav_ContractWithCustomerAssetUnbilledReceivablesCurrent_EDD41F507DF4802C8E1DA17279F4B447" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Unbilled receivables</link:label>
    <link:label id="lab_viav_ContractWithCustomerAssetUnbilledReceivablesCurrent_EDD41F507DF4802C8E1DA17279F4B447_label_en-US" xlink:label="lab_viav_ContractWithCustomerAssetUnbilledReceivablesCurrent_EDD41F507DF4802C8E1DA17279F4B447" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Contract With Customer, Asset, Unbilled Receivables, Current</link:label>
    <link:label id="lab_viav_ContractWithCustomerAssetUnbilledReceivablesCurrent_EDD41F507DF4802C8E1DA17279F4B447_documentation_en-US" xlink:label="lab_viav_ContractWithCustomerAssetUnbilledReceivablesCurrent_EDD41F507DF4802C8E1DA17279F4B447" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Unbilled amount of right to consideration in exchange for good or service transferred to customer, classified as current</link:label>
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    <link:label id="lab_viav_ChangeInContractWithCustomerLiabilityRollForward_360FFE103A8C246D187BA17279F41667_terseLabel_en-US" xlink:label="lab_viav_ChangeInContractWithCustomerLiabilityRollForward_360FFE103A8C246D187BA17279F41667" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Deferred revenue:</link:label>
    <link:label id="lab_viav_ChangeInContractWithCustomerLiabilityRollForward_360FFE103A8C246D187BA17279F41667_label_en-US" xlink:label="lab_viav_ChangeInContractWithCustomerLiabilityRollForward_360FFE103A8C246D187BA17279F41667" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Change In Contract With Customer, Liability [Roll Forward]</link:label>
    <link:label id="lab_viav_ChangeInContractWithCustomerLiabilityRollForward_360FFE103A8C246D187BA17279F41667_documentation_en-US" xlink:label="lab_viav_ChangeInContractWithCustomerLiabilityRollForward_360FFE103A8C246D187BA17279F41667" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Change In Contract With Customer, Liability [Roll Forward]</link:label>
    <link:loc xlink:href="viav-20200328.xsd#viav_ChangeInContractWithCustomerLiabilityRollForward" xlink:label="loc_viav_ChangeInContractWithCustomerLiabilityRollForward_360FFE103A8C246D187BA17279F41667" xlink:type="locator" />
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    <link:label id="lab_us-gaap_ContractWithCustomerLiability_D80B11ECEEC55A8E8768A17279F4CBD6_periodStartLabel_en-US" xlink:label="lab_us-gaap_ContractWithCustomerLiability_D80B11ECEEC55A8E8768A17279F4CBD6" xlink:role="http://www.xbrl.org/2003/role/periodStartLabel" xlink:type="resource" xml:lang="en-US">Balance at beginning of period</link:label>
    <link:label id="lab_us-gaap_ContractWithCustomerLiability_D80B11ECEEC55A8E8768A17279F4CBD6_label_en-US" xlink:label="lab_us-gaap_ContractWithCustomerLiability_D80B11ECEEC55A8E8768A17279F4CBD6" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Contract with Customer, Liability</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_ContractWithCustomerLiability" xlink:label="loc_us-gaap_ContractWithCustomerLiability_D80B11ECEEC55A8E8768A17279F4CBD6" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_ContractWithCustomerLiability_D80B11ECEEC55A8E8768A17279F4CBD6" xlink:to="lab_us-gaap_ContractWithCustomerLiability_D80B11ECEEC55A8E8768A17279F4CBD6" xlink:type="arc" />
    <link:label id="lab_viav_ContractWithCustomerLiabilityCumulativeCatchUpAdjustmentNewContracts_D51080179D4AEC96F166A17279F586CC_terseLabel_en-US" xlink:label="lab_viav_ContractWithCustomerLiabilityCumulativeCatchUpAdjustmentNewContracts_D51080179D4AEC96F166A17279F586CC" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Revenue deferrals for new contracts</link:label>
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    <link:label id="lab_viav_ContractWithCustomerLiabilityCumulativeCatchUpAdjustmentNewContracts_D51080179D4AEC96F166A17279F586CC_documentation_en-US" xlink:label="lab_viav_ContractWithCustomerLiabilityCumulativeCatchUpAdjustmentNewContracts_D51080179D4AEC96F166A17279F586CC" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Contract With Customer, Liability, Cumulative Catch-Up Adjustment, New Contracts</link:label>
    <link:loc xlink:href="viav-20200328.xsd#viav_ContractWithCustomerLiabilityCumulativeCatchUpAdjustmentNewContracts" xlink:label="loc_viav_ContractWithCustomerLiabilityCumulativeCatchUpAdjustmentNewContracts_D51080179D4AEC96F166A17279F586CC" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_viav_ContractWithCustomerLiabilityCumulativeCatchUpAdjustmentNewContracts_D51080179D4AEC96F166A17279F586CC" xlink:to="lab_viav_ContractWithCustomerLiabilityCumulativeCatchUpAdjustmentNewContracts_D51080179D4AEC96F166A17279F586CC" xlink:type="arc" />
    <link:label id="lab_us-gaap_ContractWithCustomerLiabilityRevenueRecognized_79871901B19EB240EAEDA17279F544B9_negatedTerseLabel_en-US" xlink:label="lab_us-gaap_ContractWithCustomerLiabilityRevenueRecognized_79871901B19EB240EAEDA17279F544B9" xlink:role="http://www.xbrl.org/2009/role/negatedTerseLabel" xlink:type="resource" xml:lang="en-US">Revenue recognized during the period</link:label>
    <link:label id="lab_us-gaap_ContractWithCustomerLiabilityRevenueRecognized_79871901B19EB240EAEDA17279F544B9_label_en-US" xlink:label="lab_us-gaap_ContractWithCustomerLiabilityRevenueRecognized_79871901B19EB240EAEDA17279F544B9" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Contract with Customer, Liability, Revenue Recognized</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_ContractWithCustomerLiabilityRevenueRecognized" xlink:label="loc_us-gaap_ContractWithCustomerLiabilityRevenueRecognized_79871901B19EB240EAEDA17279F544B9" xlink:type="locator" />
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    <link:label id="lab_us-gaap_ContractWithCustomerLiability_7833EA3C71C7EFED9785A17279F5E210_periodEndLabel_en-US" xlink:label="lab_us-gaap_ContractWithCustomerLiability_7833EA3C71C7EFED9785A17279F5E210" xlink:role="http://www.xbrl.org/2003/role/periodEndLabel" xlink:type="resource" xml:lang="en-US">Balance at end of period</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_ContractWithCustomerLiability" xlink:label="loc_us-gaap_ContractWithCustomerLiability_7833EA3C71C7EFED9785A17279F5E210" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_ContractWithCustomerLiability_7833EA3C71C7EFED9785A17279F5E210" xlink:to="lab_us-gaap_ContractWithCustomerLiability_7833EA3C71C7EFED9785A17279F5E210" xlink:type="arc" />
    <link:label id="lab_us-gaap_ContractWithCustomerLiabilityCurrent_3681DD4CFAD5C8ECF343A17279F59753_terseLabel_en-US" xlink:label="lab_us-gaap_ContractWithCustomerLiabilityCurrent_3681DD4CFAD5C8ECF343A17279F59753" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Short-term deferred revenue</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_ContractWithCustomerLiabilityCurrent" xlink:label="loc_us-gaap_ContractWithCustomerLiabilityCurrent_3681DD4CFAD5C8ECF343A17279F59753" xlink:type="locator" />
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    <link:label id="lab_us-gaap_ContractWithCustomerLiabilityNoncurrent_E4D92DE5DD747EA9D896A17279F58704_verboseLabel_en-US" xlink:label="lab_us-gaap_ContractWithCustomerLiabilityNoncurrent_E4D92DE5DD747EA9D896A17279F58704" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US">Long-term deferred revenue</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_ContractWithCustomerLiabilityNoncurrent" xlink:label="loc_us-gaap_ContractWithCustomerLiabilityNoncurrent_E4D92DE5DD747EA9D896A17279F58704" xlink:type="locator" />
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    <link:label id="lab_us-gaap_RevenueRemainingPerformanceObligation_06C1F6AF83EA6B3FC6C14FB15094BA55_terseLabel_en-US" xlink:label="lab_us-gaap_RevenueRemainingPerformanceObligation_2458466FD1FE5614AC38DDDD01782A62" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Remaining performance obligation</link:label>
    <link:label id="lab_us-gaap_RevenueRemainingPerformanceObligation_06C1F6AF83EA6B3FC6C14FB15094BA55_label_en-US" xlink:label="lab_us-gaap_RevenueRemainingPerformanceObligation_2458466FD1FE5614AC38DDDD01782A62" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Revenue, Remaining Performance Obligation, Amount</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_RevenueRemainingPerformanceObligation" xlink:label="loc_us-gaap_RevenueRemainingPerformanceObligation_2458466FD1FE5614AC38DDDD01782A62" xlink:type="locator" />
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    <link:label id="lab_us-gaap_RevenueRemainingPerformanceObligationExpectedTimingOfSatisfactionTable_7A3CD5BC60DCC3C9FB9E4FB1509465F0_terseLabel_en-US" xlink:label="lab_us-gaap_RevenueRemainingPerformanceObligationExpectedTimingOfSatisfactionTable_AC20F0613AF15ABC9C6EDA67ACECCBF7" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Table]</link:label>
    <link:label id="lab_us-gaap_RevenueRemainingPerformanceObligationExpectedTimingOfSatisfactionTable_7A3CD5BC60DCC3C9FB9E4FB1509465F0_label_en-US" xlink:label="lab_us-gaap_RevenueRemainingPerformanceObligationExpectedTimingOfSatisfactionTable_AC20F0613AF15ABC9C6EDA67ACECCBF7" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Table]</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_RevenueRemainingPerformanceObligationExpectedTimingOfSatisfactionTable" xlink:label="loc_us-gaap_RevenueRemainingPerformanceObligationExpectedTimingOfSatisfactionTable_AC20F0613AF15ABC9C6EDA67ACECCBF7" xlink:type="locator" />
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    <link:label id="lab_us-gaap_RevenueRemainingPerformanceObligationExpectedTimingOfSatisfactionStartDateAxis_FC752DB79E87F614F83E4FB150943997_terseLabel_en-US" xlink:label="lab_us-gaap_RevenueRemainingPerformanceObligationExpectedTimingOfSatisfactionStartDateAxis_97894C34FC655DBF929CD6297E9A9279" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]</link:label>
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    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_RevenueRemainingPerformanceObligationExpectedTimingOfSatisfactionStartDateAxis" xlink:label="loc_us-gaap_RevenueRemainingPerformanceObligationExpectedTimingOfSatisfactionStartDateAxis_97894C34FC655DBF929CD6297E9A9279" xlink:type="locator" />
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    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_RevenueRemainingPerformanceObligationExpectedTimingOfSatisfactionLineItems" xlink:label="loc_us-gaap_RevenueRemainingPerformanceObligationExpectedTimingOfSatisfactionLineItems_02DF94271D51576C980D3D5349708705" xlink:type="locator" />
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    <link:label id="lab_us-gaap_RevenueRemainingPerformanceObligationPercentage_EC34F61EB9529C3E0D234FB15094DCED_label_en-US" xlink:label="lab_us-gaap_RevenueRemainingPerformanceObligationPercentage_1C0E874F852B5922963A1A016D630539" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Revenue, Remaining Performance Obligation, Percentage</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_RevenueRemainingPerformanceObligationPercentage" xlink:label="loc_us-gaap_RevenueRemainingPerformanceObligationPercentage_1C0E874F852B5922963A1A016D630539" xlink:type="locator" />
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    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_IncomeLossFromDiscontinuedOperationsNetOfTaxAttributableToReportingEntity" xlink:label="loc_us-gaap_IncomeLossFromDiscontinuedOperationsNetOfTaxAttributableToReportingEntity_10ABE6968A47959F3FBAE275A120A020" xlink:type="locator" />
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    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_NetIncomeLoss" xlink:label="loc_us-gaap_NetIncomeLoss_A278E8E2D8988DBAE477E275A1202453" xlink:type="locator" />
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    <link:label id="lab_us-gaap_WeightedAverageNumberOfSharesOutstandingAbstract_A931E099C679462FB7D7E275A120E796_label_en-US" xlink:label="lab_us-gaap_WeightedAverageNumberOfSharesOutstandingAbstract_A931E099C679462FB7D7E275A120E796" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Weighted Average Number of Shares Outstanding, Diluted [Abstract]</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_WeightedAverageNumberOfSharesOutstandingAbstract" xlink:label="loc_us-gaap_WeightedAverageNumberOfSharesOutstandingAbstract_A931E099C679462FB7D7E275A120E796" xlink:type="locator" />
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    <link:label id="lab_us-gaap_WeightedAverageNumberOfSharesOutstandingDilutedDisclosureItemsAbstract_795A03C8738F5D5B6316E275A1202266_label_en-US" xlink:label="lab_us-gaap_WeightedAverageNumberOfSharesOutstandingDilutedDisclosureItemsAbstract_795A03C8738F5D5B6316E275A1202266" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Weighted Average Number of Shares Outstanding Reconciliation [Abstract]</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_WeightedAverageNumberOfSharesOutstandingDilutedDisclosureItemsAbstract" xlink:label="loc_us-gaap_WeightedAverageNumberOfSharesOutstandingDilutedDisclosureItemsAbstract_795A03C8738F5D5B6316E275A1202266" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_WeightedAverageNumberOfSharesOutstandingDilutedDisclosureItemsAbstract_795A03C8738F5D5B6316E275A1202266" xlink:to="lab_us-gaap_WeightedAverageNumberOfSharesOutstandingDilutedDisclosureItemsAbstract_795A03C8738F5D5B6316E275A1202266" xlink:type="arc" />
    <link:label id="lab_us-gaap_WeightedAverageNumberOfSharesOutstandingBasic_3CAC1552EB75F3B37EB5E275A120974D_terseLabel_en-US" xlink:label="lab_us-gaap_WeightedAverageNumberOfSharesOutstandingBasic_3CAC1552EB75F3B37EB5E275A120974D" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Basic (in shares)</link:label>
    <link:label id="lab_us-gaap_WeightedAverageNumberOfSharesOutstandingBasic_3CAC1552EB75F3B37EB5E275A120974D_label_en-US" xlink:label="lab_us-gaap_WeightedAverageNumberOfSharesOutstandingBasic_3CAC1552EB75F3B37EB5E275A120974D" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Weighted Average Number of Shares Outstanding, Basic</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_WeightedAverageNumberOfSharesOutstandingBasic" xlink:label="loc_us-gaap_WeightedAverageNumberOfSharesOutstandingBasic_3CAC1552EB75F3B37EB5E275A120974D" xlink:type="locator" />
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    <link:label id="lab_viav_IncrementalCommonSharesAttributableToDilutiveEffectOfConversionOfDebtSecuritiesNetSettlementMethod_E399166AD5BF73CDC847E275A120C956_terseLabel_en-US" xlink:label="lab_viav_IncrementalCommonSharesAttributableToDilutiveEffectOfConversionOfDebtSecuritiesNetSettlementMethod_E399166AD5BF73CDC847E275A120C956" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Shares issuable assuming conversion of convertible notes (in shares)</link:label>
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    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseRemainderOfFiscalYear" xlink:label="loc_us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseRemainderOfFiscalYear_C0863CEA43E75615B8DE7A76E2DA3B2A" xlink:type="locator" />
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    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseYearTwo" xlink:label="loc_us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseYearTwo_14791A8256385244B7DEA77BA6102DF3" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseYearTwo_14791A8256385244B7DEA77BA6102DF3" xlink:to="lab_us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseYearTwo_14791A8256385244B7DEA77BA6102DF3" xlink:type="arc" />
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    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseYearThree" xlink:label="loc_us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseYearThree_C8864A540C4E53D7AF3820E0251BD34A" xlink:type="locator" />
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    <link:label id="lab_us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseYearFour_4A3288A1157641CF33E2146E0AE035BE_terseLabel_en-US" xlink:label="lab_us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseYearFour_D89230C48E155A7096CBB16D4F7E9180" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">2023</link:label>
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    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseYearFour" xlink:label="loc_us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseYearFour_D89230C48E155A7096CBB16D4F7E9180" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseYearFour_D89230C48E155A7096CBB16D4F7E9180" xlink:to="lab_us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseYearFour_D89230C48E155A7096CBB16D4F7E9180" xlink:type="arc" />
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    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseYearFive_13A18BEA392C57A48DE36A27EFDCA7E8" xlink:to="lab_us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseYearFive_13A18BEA392C57A48DE36A27EFDCA7E8" xlink:type="arc" />
    <link:label id="lab_us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseAfterYearFive_2EECD2178427813195A0146E0AE092CC_terseLabel_en-US" xlink:label="lab_us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseAfterYearFive_46EB34939DD254B2B7612A7176C59E5A" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Thereafter</link:label>
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    <link:label id="lab_viav_FiniteLivedIntangibleAssetsNetExcludingResearchandDevelopmentandGoodwill_FA537A0C7B95C1D722F2146E0AE0027A_totalLabel_en-US" xlink:label="lab_viav_FiniteLivedIntangibleAssetsNetExcludingResearchandDevelopmentandGoodwill_49EFD13D68A159818CC85564DE3EC8F9" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:type="resource" xml:lang="en-US">Total amortization</link:label>
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    <link:label id="lab_viav_OperatingLeaseRightOfUseAssetNoncurrent_85563FD9A550E587907519F3BF5D9332_terseLabel_en-US" xlink:label="lab_viav_OperatingLeaseRightOfUseAssetNoncurrent_8EF1325C3E755D14AED6D98C3F9CB086" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Other non-current assets</link:label>
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    <link:label id="lab_viav_FullValueAwardsMember_4F24AC33CA7CD573FB1DE2759F30F688_documentation_en-US" xlink:label="lab_viav_FullValueAwardsMember_4F24AC33CA7CD573FB1DE2759F30F688" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Represents information pertaining to the full value awards granted under the entity's equity based compensation plans.</link:label>
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    <link:label id="lab_viav_RestrictedStockUnitsWithTimeBasedConditionsMember_1829A75114838A8F5321E2759F3074D1_terseLabel_en-US" xlink:label="lab_viav_RestrictedStockUnitsWithTimeBasedConditionsMember_1829A75114838A8F5321E2759F3074D1" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Restricted Stock Units with Time Based Conditions</link:label>
    <link:label id="lab_viav_RestrictedStockUnitsWithTimeBasedConditionsMember_1829A75114838A8F5321E2759F3074D1_label_en-US" xlink:label="lab_viav_RestrictedStockUnitsWithTimeBasedConditionsMember_1829A75114838A8F5321E2759F3074D1" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Restricted Stock Units with Time Based Conditions [Member]</link:label>
    <link:label id="lab_viav_RestrictedStockUnitsWithTimeBasedConditionsMember_1829A75114838A8F5321E2759F3074D1_documentation_en-US" xlink:label="lab_viav_RestrictedStockUnitsWithTimeBasedConditionsMember_1829A75114838A8F5321E2759F3074D1" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Restricted stock units (RSUs) with times-based conditions as awarded by a company to their employees as a form of incentive compensation.</link:label>
    <link:loc xlink:href="viav-20200328.xsd#viav_RestrictedStockUnitsWithTimeBasedConditionsMember" xlink:label="loc_viav_RestrictedStockUnitsWithTimeBasedConditionsMember_1829A75114838A8F5321E2759F3074D1" xlink:type="locator" />
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    <link:label id="lab_viav_RestrictedStockUnitswithMarketandPerformanceConditionsMember_784A5063393EE1665791E2759F30AA23_terseLabel_en-US" xlink:label="lab_viav_RestrictedStockUnitswithMarketandPerformanceConditionsMember_784A5063393EE1665791E2759F30AA23" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Restricted Stock Units with Market and Performance Conditions</link:label>
    <link:label id="lab_viav_RestrictedStockUnitswithMarketandPerformanceConditionsMember_784A5063393EE1665791E2759F30AA23_label_en-US" xlink:label="lab_viav_RestrictedStockUnitswithMarketandPerformanceConditionsMember_784A5063393EE1665791E2759F30AA23" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Restricted Stock Units with Market and Performance Conditions [Member]</link:label>
    <link:label id="lab_viav_RestrictedStockUnitswithMarketandPerformanceConditionsMember_784A5063393EE1665791E2759F30AA23_documentation_en-US" xlink:label="lab_viav_RestrictedStockUnitswithMarketandPerformanceConditionsMember_784A5063393EE1665791E2759F30AA23" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Restricted Stock Units with Market and Performance Conditions [Member]</link:label>
    <link:loc xlink:href="viav-20200328.xsd#viav_RestrictedStockUnitswithMarketandPerformanceConditionsMember" xlink:label="loc_viav_RestrictedStockUnitswithMarketandPerformanceConditionsMember_784A5063393EE1665791E2759F30AA23" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_viav_RestrictedStockUnitswithMarketandPerformanceConditionsMember_784A5063393EE1665791E2759F30AA23" xlink:to="lab_viav_RestrictedStockUnitswithMarketandPerformanceConditionsMember_784A5063393EE1665791E2759F30AA23" xlink:type="arc" />
    <link:label id="lab_viav_RestrictedStockUnitswithPerformanceConditionsOverTargetMember_A5C5C3E9519C0915C587E2759F307477_terseLabel_en-US" xlink:label="lab_viav_RestrictedStockUnitswithPerformanceConditionsOverTargetMember_A5C5C3E9519C0915C587E2759F307477" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Restricted Stock Units with Performance Conditions Over Target</link:label>
    <link:label id="lab_viav_RestrictedStockUnitswithPerformanceConditionsOverTargetMember_A5C5C3E9519C0915C587E2759F307477_label_en-US" xlink:label="lab_viav_RestrictedStockUnitswithPerformanceConditionsOverTargetMember_A5C5C3E9519C0915C587E2759F307477" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Restricted Stock Units with Performance Conditions Over Target [Member]</link:label>
    <link:label id="lab_viav_RestrictedStockUnitswithPerformanceConditionsOverTargetMember_A5C5C3E9519C0915C587E2759F307477_documentation_en-US" xlink:label="lab_viav_RestrictedStockUnitswithPerformanceConditionsOverTargetMember_A5C5C3E9519C0915C587E2759F307477" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Restricted Stock Units with Performance Conditions Over Target [Member]</link:label>
    <link:loc xlink:href="viav-20200328.xsd#viav_RestrictedStockUnitswithPerformanceConditionsOverTargetMember" xlink:label="loc_viav_RestrictedStockUnitswithPerformanceConditionsOverTargetMember_A5C5C3E9519C0915C587E2759F307477" xlink:type="locator" />
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    <link:label id="lab_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_0D7F740111D673869392E2759F30512E_verboseLabel_en-US" xlink:label="lab_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_0D7F740111D673869392E2759F30512E" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US">Stock-Based Compensation</link:label>
    <link:label id="lab_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_0D7F740111D673869392E2759F30512E_label_en-US" xlink:label="lab_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_0D7F740111D673869392E2759F30512E" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Share-based Compensation Arrangement by Share-based Payment Award [Line Items]</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_0D7F740111D673869392E2759F30512E" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_0D7F740111D673869392E2759F30512E" xlink:to="lab_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_0D7F740111D673869392E2759F30512E" xlink:type="arc" />
    <link:label id="lab_us-gaap_EmployeeServiceShareBasedCompensationAllocationOfRecognizedPeriodCostsCapitalizedAmount_C286DB4D7090DE0285BFE2759F30A628_terseLabel_en-US" xlink:label="lab_us-gaap_EmployeeServiceShareBasedCompensationAllocationOfRecognizedPeriodCostsCapitalizedAmount_C286DB4D7090DE0285BFE2759F30A628" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Stock-based compensation capitalized to inventory</link:label>
    <link:label id="lab_us-gaap_EmployeeServiceShareBasedCompensationAllocationOfRecognizedPeriodCostsCapitalizedAmount_C286DB4D7090DE0285BFE2759F30A628_label_en-US" xlink:label="lab_us-gaap_EmployeeServiceShareBasedCompensationAllocationOfRecognizedPeriodCostsCapitalizedAmount_C286DB4D7090DE0285BFE2759F30A628" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Share-based Payment Arrangement, Amount Capitalized</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_EmployeeServiceShareBasedCompensationAllocationOfRecognizedPeriodCostsCapitalizedAmount" xlink:label="loc_us-gaap_EmployeeServiceShareBasedCompensationAllocationOfRecognizedPeriodCostsCapitalizedAmount_C286DB4D7090DE0285BFE2759F30A628" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_EmployeeServiceShareBasedCompensationAllocationOfRecognizedPeriodCostsCapitalizedAmount_C286DB4D7090DE0285BFE2759F30A628" xlink:to="lab_us-gaap_EmployeeServiceShareBasedCompensationAllocationOfRecognizedPeriodCostsCapitalizedAmount_C286DB4D7090DE0285BFE2759F30A628" xlink:type="arc" />
    <link:label id="lab_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardAwardVestingPeriod1_FDB32DA3DEEE27FF714DE2759F30FD09_terseLabel_en-US" xlink:label="lab_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardAwardVestingPeriod1_FDB32DA3DEEE27FF714DE2759F30FD09" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Vesting period</link:label>
    <link:label id="lab_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardAwardVestingPeriod1_FDB32DA3DEEE27FF714DE2759F30FD09_label_en-US" xlink:label="lab_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardAwardVestingPeriod1_FDB32DA3DEEE27FF714DE2759F30FD09" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Period</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardAwardVestingPeriod1" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardAwardVestingPeriod1_FDB32DA3DEEE27FF714DE2759F30FD09" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardAwardVestingPeriod1_FDB32DA3DEEE27FF714DE2759F30FD09" xlink:to="lab_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardAwardVestingPeriod1_FDB32DA3DEEE27FF714DE2759F30FD09" xlink:type="arc" />
    <link:label id="lab_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriod_61E158ADCC8636212C84E2759F304F41_terseLabel_en-US" xlink:label="lab_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriod_61E158ADCC8636212C84E2759F304F41" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Granted (in shares)</link:label>
    <link:label id="lab_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriod_61E158ADCC8636212C84E2759F304F41_label_en-US" xlink:label="lab_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriod_61E158ADCC8636212C84E2759F304F41" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriod" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriod_61E158ADCC8636212C84E2759F304F41" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriod_61E158ADCC8636212C84E2759F304F41" xlink:to="lab_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriod_61E158ADCC8636212C84E2759F304F41" xlink:type="arc" />
    <link:label id="lab_viav_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsPercentageOfSharesVested_F5FC78D58DE8CEB0BBB0E2759F30C9DA_terseLabel_en-US" xlink:label="lab_viav_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsPercentageOfSharesVested_F5FC78D58DE8CEB0BBB0E2759F30C9DA" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Percentage of first tranche vested</link:label>
    <link:label id="lab_viav_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsPercentageOfSharesVested_F5FC78D58DE8CEB0BBB0E2759F30C9DA_label_en-US" xlink:label="lab_viav_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsPercentageOfSharesVested_F5FC78D58DE8CEB0BBB0E2759F30C9DA" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Share Based Compensation Arrangement by Share Based Payment Award, Equity Instruments Other than Options, Percentage of Shares Vested</link:label>
    <link:label id="lab_viav_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsPercentageOfSharesVested_F5FC78D58DE8CEB0BBB0E2759F30C9DA_documentation_en-US" xlink:label="lab_viav_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsPercentageOfSharesVested_F5FC78D58DE8CEB0BBB0E2759F30C9DA" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Represents the percentage of first tranche vested.</link:label>
    <link:loc xlink:href="viav-20200328.xsd#viav_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsPercentageOfSharesVested" xlink:label="loc_viav_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsPercentageOfSharesVested_F5FC78D58DE8CEB0BBB0E2759F30C9DA" xlink:type="locator" />
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    <link:label id="lab_viav_ShareBasedCompensationArrangementByShareBasedPaymentAwardInitialAwardVestingPeriod_CE744299126B893C9F31E2759F30A8CA_terseLabel_en-US" xlink:label="lab_viav_ShareBasedCompensationArrangementByShareBasedPaymentAwardInitialAwardVestingPeriod_CE744299126B893C9F31E2759F30A8CA" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Initial vesting period</link:label>
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    <link:label id="lab_viav_ShareBasedCompensationArrangementByShareBasedPaymentAwardInitialAwardVestingPeriod_CE744299126B893C9F31E2759F30A8CA_documentation_en-US" xlink:label="lab_viav_ShareBasedCompensationArrangementByShareBasedPaymentAwardInitialAwardVestingPeriod_CE744299126B893C9F31E2759F30A8CA" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Description of the initial period of time over which the first tranche of an employee's equity award is vested, which may be expressed in a variety of ways (for example, in years, month and year).</link:label>
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