content: <?xml version="1.0" encoding="UTF-8"?><edgarSubmission xmlns="http://www.sec.gov/edgar/ownership" xmlns:com="http://www.sec.gov/edgar/common">
    <!-- Generated by Workiva -->
    <headerData>
      <submissionType>144</submissionType>
      <filerInfo>
        <filer>
          <filerCredentials>
            <cik>0001605808</cik>
            <ccc>XXXXXXXX</ccc>
          </filerCredentials>
        </filer>
        <liveTestFlag>LIVE</liveTestFlag>
  
  
  
      </filerInfo>
    </headerData>
    <formData>
      <issuerInfo>
        <issuerCik>0001596532</issuerCik>
        <issuerName>Arista Networks, Inc.</issuerName>
        <secFileNumber>001-36468</secFileNumber>
        <issuerAddress>
          <com:street1>5453 Great America Parkway</com:street1>
          <com:city>Santa Clara</com:city>
          <com:stateOrCountry>CA</com:stateOrCountry>
          <com:zipCode>95054</com:zipCode>
        </issuerAddress>
        <issuerContactPhone>408-547-5500</issuerContactPhone>
        <nameOfPersonForWhoseAccountTheSecuritiesAreToBeSold>Kenneth Duda</nameOfPersonForWhoseAccountTheSecuritiesAreToBeSold>
        <relationshipsToIssuer>
          <relationshipToIssuer>Officer</relationshipToIssuer>
        </relationshipsToIssuer>
      </issuerInfo>
      <securitiesInformation>
        <securitiesClassTitle>Common</securitiesClassTitle>
        <brokerOrMarketmakerDetails>
          <name>J.P. Morgan Securities LLC</name>
          <address>
            <com:street1>360 Madison Avenue - 6th Floor</com:street1>
            <com:city>New York</com:city>
            <com:stateOrCountry>NY</com:stateOrCountry>
            <com:zipCode>10017</com:zipCode>
          </address>
        </brokerOrMarketmakerDetails>
        <noOfUnitsSold>90000</noOfUnitsSold>
        <aggregateMarketValue>8558100</aggregateMarketValue>
        <noOfUnitsOutstanding>1255921431</noOfUnitsOutstanding>
        <approxSaleDate>06/17/2025</approxSaleDate>
        <securitiesExchangeName>NYSE</securitiesExchangeName>
      </securitiesInformation>
      <securitiesToBeSold>
        <securitiesClassTitle>Common</securitiesClassTitle>
        <acquiredDate>06/17/2025</acquiredDate>
        <natureOfAcquisitionTransaction>Stock Option Exercise</natureOfAcquisitionTransaction>
        <nameOfPersonfromWhomAcquired>Issuer</nameOfPersonfromWhomAcquired>
        <isGiftTransaction>N</isGiftTransaction>
        <amountOfSecuritiesAcquired>90000</amountOfSecuritiesAcquired>
        <paymentDate>06/17/2025</paymentDate>
        <natureOfPayment>Cash</natureOfPayment>
      </securitiesToBeSold>
      <nothingToReportFlagOnSecuritiesSoldInPast3Months>N</nothingToReportFlagOnSecuritiesSoldInPast3Months>
      <securitiesSoldInPast3Months>
        <sellerDetails>
          <name>Kenneth Duda</name>
          <address>
            <com:street1>C/O Issuer</com:street1>
            <com:street2>5453 Great America Parkway</com:street2>
            <com:city>Santa Clara</com:city>
            <com:stateOrCountry>CA</com:stateOrCountry>
            <com:zipCode>95054</com:zipCode>
          </address>
        </sellerDetails>
        <securitiesClassTitle>Common</securitiesClassTitle>
        <saleDate>04/07/2025</saleDate>
        <amountOfSecuritiesSold>80000</amountOfSecuritiesSold>
        <grossProceeds>5342981</grossProceeds>
      </securitiesSoldInPast3Months>
      <securitiesSoldInPast3Months>
        <sellerDetails>
          <name>Kenneth Duda</name>
          <address>
            <com:street1>C/O Issuer</com:street1>
            <com:street2>5453 Great America Parkway</com:street2>
            <com:city>Santa Clara</com:city>
            <com:stateOrCountry>CA</com:stateOrCountry>
            <com:zipCode>95054</com:zipCode>
          </address>
        </sellerDetails>
        <securitiesClassTitle>Common</securitiesClassTitle>
        <saleDate>05/06/2025</saleDate>
        <amountOfSecuritiesSold>80000</amountOfSecuritiesSold>
        <grossProceeds>7205792</grossProceeds>
      </securitiesSoldInPast3Months>
      <securitiesSoldInPast3Months>
        <sellerDetails>
          <name>Molly Hsu-Mei Duda 2017 Trust</name>
          <address>
            <com:street1>C/O Issuer</com:street1>
            <com:street2>5453 Great America Parkway</com:street2>
            <com:city>Santa Clara</com:city>
            <com:stateOrCountry>CA</com:stateOrCountry>
            <com:zipCode>95054</com:zipCode>
          </address>
        </sellerDetails>
        <securitiesClassTitle>Common</securitiesClassTitle>
        <saleDate>04/07/2025</saleDate>
        <amountOfSecuritiesSold>32000</amountOfSecuritiesSold>
        <grossProceeds>2137193</grossProceeds>
      </securitiesSoldInPast3Months>
      <securitiesSoldInPast3Months>
        <sellerDetails>
          <name>Molly Hsu-Mei Duda 2017 Trust</name>
          <address>
            <com:street1>C/O Issuer</com:street1>
            <com:street2>5453 Great America Parkway</com:street2>
            <com:city>Santa Clara</com:city>
            <com:stateOrCountry>CA</com:stateOrCountry>
            <com:zipCode>95054</com:zipCode>
          </address>
        </sellerDetails>
        <securitiesClassTitle>Common</securitiesClassTitle>
        <saleDate>05/06/2025</saleDate>
        <amountOfSecuritiesSold>32000</amountOfSecuritiesSold>
        <grossProceeds>2882316</grossProceeds>
      </securitiesSoldInPast3Months>
      <securitiesSoldInPast3Months>
        <sellerDetails>
          <name>Sophie Hsu-Tsen Duda 2017 Trust</name>
          <address>
            <com:street1>C/O Issuer</com:street1>
            <com:street2>5453 Great America Parkway</com:street2>
            <com:city>Santa Clara</com:city>
            <com:stateOrCountry>CA</com:stateOrCountry>
            <com:zipCode>95054</com:zipCode>
          </address>
        </sellerDetails>
        <securitiesClassTitle>Common</securitiesClassTitle>
        <saleDate>04/07/2025</saleDate>
        <amountOfSecuritiesSold>32000</amountOfSecuritiesSold>
        <grossProceeds>2137193</grossProceeds>
      </securitiesSoldInPast3Months>
      <securitiesSoldInPast3Months>
        <sellerDetails>
          <name>Sophie Hsu-Tsen Duda 2017 Trust</name>
          <address>
            <com:street1>C/O Issuer</com:street1>
            <com:street2>5453 Great America Parkway</com:street2>
            <com:city>Santa Clara</com:city>
            <com:stateOrCountry>CA</com:stateOrCountry>
            <com:zipCode>95054</com:zipCode>
          </address>
        </sellerDetails>
        <securitiesClassTitle>Common</securitiesClassTitle>
        <saleDate>05/06/2025</saleDate>
        <amountOfSecuritiesSold>32000</amountOfSecuritiesSold>
        <grossProceeds>2882316</grossProceeds>
      </securitiesSoldInPast3Months>
      <securitiesSoldInPast3Months>
        <sellerDetails>
          <name>Foundation for Truth, Justice, and Compassion</name>
          <address>
            <com:street1>C/O Issuer</com:street1>
            <com:street2>5453 Great America Parkway</com:street2>
            <com:city>Santa Clara</com:city>
            <com:stateOrCountry>CA</com:stateOrCountry>
            <com:zipCode>95054</com:zipCode>
          </address>
        </sellerDetails>
        <securitiesClassTitle>Common</securitiesClassTitle>
        <saleDate>04/07/2025</saleDate>
        <amountOfSecuritiesSold>16000</amountOfSecuritiesSold>
        <grossProceeds>1068596</grossProceeds>
      </securitiesSoldInPast3Months>
      <securitiesSoldInPast3Months>
        <sellerDetails>
          <name>Foundation for Truth, Justice, and Compassion</name>
          <address>
            <com:street1>C/O Issuer</com:street1>
            <com:street2>5453 Great America Parkway</com:street2>
            <com:city>Santa Clara</com:city>
            <com:stateOrCountry>CA</com:stateOrCountry>
            <com:zipCode>95054</com:zipCode>
          </address>
        </sellerDetails>
        <securitiesClassTitle>Common</securitiesClassTitle>
        <saleDate>05/06/2025</saleDate>
        <amountOfSecuritiesSold>16000</amountOfSecuritiesSold>
        <grossProceeds>1441158</grossProceeds>
      </securitiesSoldInPast3Months>
      <remarks>The sales under this filing are from Cashless Option Exercises that will occur within 3 months from the date of this filing.</remarks>
      <noticeSignature>
        <noticeDate>06/17/2025</noticeDate>
        <planAdoptionDates>
          <planAdoptionDate>03/13/2025</planAdoptionDate>
        </planAdoptionDates>
        <signature>/s/ J.P. Morgan Securities LLC as agent and attorney-in-fact for Kenneth Duda</signature>
      </noticeSignature>
    </formData>
  </edgarSubmission>
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text: 144
  0001605808
  XXXXXXXX
  LIVE
  0001596532
  Arista Networks, Inc.
  001-36468
  5453 Great America Parkway
  Santa Clara
  CA
  95054
  408-547-5500
  Kenneth Duda
  Officer
  Common
  J.P. Morgan Securities LLC
  360 Madison Avenue - 6th Floor
  New York
  NY
  10017
  90000
  8558100
  1255921431
  06/17/2025
  NYSE
  Common
  06/17/2025
  Stock Option Exercise
  Issuer
  N
  90000
  06/17/2025
  Cash
  N
  Kenneth Duda
  C/O Issuer
  5453 Great America Parkway
  Santa Clara
  CA
  95054
  Common
  04/07/2025
  80000
  5342981
  Kenneth Duda
  C/O Issuer
  5453 Great America Parkway
  Santa Clara
  CA
  95054
  Common
  05/06/2025
  80000
  7205792
  Molly Hsu-Mei Duda 2017 Trust
  C/O Issuer
  5453 Great America Parkway
  Santa Clara
  CA
  95054
  Common
  04/07/2025
  32000
  2137193
  Molly Hsu-Mei Duda 2017 Trust
  C/O Issuer
  5453 Great America Parkway
  Santa Clara
  CA
  95054
  Common
  05/06/2025
  32000
  2882316
  Sophie Hsu-Tsen Duda 2017 Trust
  C/O Issuer
  5453 Great America Parkway
  Santa Clara
  CA
  95054
  Common
  04/07/2025
  32000
  2137193
  Sophie Hsu-Tsen Duda 2017 Trust
  C/O Issuer
  5453 Great America Parkway
  Santa Clara
  CA
  95054
  Common
  05/06/2025
  32000
  2882316
  Foundation for Truth, Justice, and Compassion
  C/O Issuer
  5453 Great America Parkway
  Santa Clara
  CA
  95054
  Common
  04/07/2025
  16000
  1068596
  Foundation for Truth, Justice, and Compassion
  C/O Issuer
  5453 Great America Parkway
  Santa Clara
  CA
  95054
  Common
  05/06/2025
  16000
  1441158
  The sales under this filing are from Cashless Option Exercises that will occur within 3 months from the date of this filing.
  06/17/2025
  03/13/2025
  /s/ J.P. Morgan Securities LLC as agent and attorney-in-fact for Kenneth Duda