<SEC-DOCUMENT>0001209191-21-057331.txt : 20210922
<SEC-HEADER>0001209191-21-057331.hdr.sgml : 20210922
<ACCEPTANCE-DATETIME>20210922200838
ACCESSION NUMBER:		0001209191-21-057331
CONFORMED SUBMISSION TYPE:	4
PUBLIC DOCUMENT COUNT:		1
CONFORMED PERIOD OF REPORT:	20210920
FILED AS OF DATE:		20210922
DATE AS OF CHANGE:		20210922

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			Elliott Geraldine
		CENTRAL INDEX KEY:			0001526803

	FILING VALUES:
		FORM TYPE:		4
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-39940
		FILM NUMBER:		211270686

	MAIL ADDRESS:	
		STREET 1:		1194 N. MATHILDA AVE.
		CITY:			SUNNYVALE
		STATE:			CA
		ZIP:			94089

ISSUER:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			CISCO SYSTEMS, INC.
		CENTRAL INDEX KEY:			0000858877
		STANDARD INDUSTRIAL CLASSIFICATION:	COMPUTER COMMUNICATIONS EQUIPMENT [3576]
		IRS NUMBER:				770059951
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			0731

	BUSINESS ADDRESS:	
		STREET 1:		170 WEST TASMAN DR
		CITY:			SAN JOSE
		STATE:			CA
		ZIP:			95134-1706
		BUSINESS PHONE:		4085264000

	MAIL ADDRESS:	
		STREET 1:		170 WEST TASMAN DR
		CITY:			SAN JOSE
		STATE:			CA
		ZIP:			95134-1706

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	CISCO SYSTEMS INC
		DATE OF NAME CHANGE:	19920703
</SEC-HEADER>
<DOCUMENT>
<TYPE>4
<SEQUENCE>1
<FILENAME>doc4.xml
<DESCRIPTION>FORM 4 SUBMISSION
<TEXT>
<XML>
<?xml version="1.0"?>
<ownershipDocument>

    <schemaVersion>X0306</schemaVersion>

    <documentType>4</documentType>

    <periodOfReport>2021-09-20</periodOfReport>

    <notSubjectToSection16>0</notSubjectToSection16>

    <issuer>
        <issuerCik>0000858877</issuerCik>
        <issuerName>CISCO SYSTEMS, INC.</issuerName>
        <issuerTradingSymbol>CSCO</issuerTradingSymbol>
    </issuer>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001526803</rptOwnerCik>
            <rptOwnerName>Elliott Geraldine</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>170 WEST TASMAN DRIVE</rptOwnerStreet1>
            <rptOwnerStreet2></rptOwnerStreet2>
            <rptOwnerCity>SAN JOSE</rptOwnerCity>
            <rptOwnerState>CA</rptOwnerState>
            <rptOwnerZipCode>95134</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>0</isDirector>
            <isOfficer>1</isOfficer>
            <isTenPercentOwner>0</isTenPercentOwner>
            <isOther>0</isOther>
            <officerTitle>EVP &amp; Chief Cust &amp; Prtnr Offcr</officerTitle>
        </reportingOwnerRelationship>
    </reportingOwner>

    <nonDerivativeTable>
        <nonDerivativeTransaction>
            <securityTitle>
                <value>Common Stock</value>
            </securityTitle>
            <transactionDate>
                <value>2021-09-20</value>
            </transactionDate>
            <deemedExecutionDate></deemedExecutionDate>
            <transactionCoding>
                <transactionFormType>4</transactionFormType>
                <transactionCode>A</transactionCode>
                <equitySwapInvolved>0</equitySwapInvolved>
            </transactionCoding>
            <transactionTimeliness>
                <value></value>
            </transactionTimeliness>
            <transactionAmounts>
                <transactionShares>
                    <value>71570</value>
                    <footnoteId id="F1"/>
                </transactionShares>
                <transactionPricePerShare>
                    <value>0.00</value>
                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
                    <value>A</value>
                </transactionAcquiredDisposedCode>
            </transactionAmounts>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>338361</value>
                    <footnoteId id="F2"/>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>D</value>
                </directOrIndirectOwnership>
            </ownershipNature>
        </nonDerivativeTransaction>
    </nonDerivativeTable>

    <footnotes>
        <footnote id="F1">Represents a restricted stock unit award that vests in installments, with twenty-five percent (25%) of the shares vesting on November 10, 2022 and six-and-one-quarter percent (6.25%) of the shares vesting quarterly thereafter.</footnote>
        <footnote id="F2">Includes 275 dividend equivalents accrued on vested deferred restricted stock units and 3,166 dividend equivalents accrued on unvested restricted stock units.  Each dividend equivalent is the economic equivalent of one share of Cisco common stock.</footnote>
    </footnotes>

    <remarks></remarks>

    <ownerSignature>
        <signatureName>/s/ Geraldine Elliott by Evan Sloves, Attorney-in-Fact</signatureName>
        <signatureDate>2021-09-22</signatureDate>
    </ownerSignature>
</ownershipDocument>
</XML>
</TEXT>
</DOCUMENT>
</SEC-DOCUMENT>
