content: <?xml version="1.0" encoding="UTF-8"?><edgarSubmission xmlns="http://www.sec.gov/edgar/ownership" xmlns:com="http://www.sec.gov/edgar/common">
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      <submissionType>144</submissionType>
      <filerInfo>
        <filer>
          <filerCredentials>
            <cik>0001605809</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>Ullal Jayshree</nameOfPersonForWhoseAccountTheSecuritiesAreToBeSold>
        <relationshipsToIssuer>
          <relationshipToIssuer>Officer</relationshipToIssuer>
        </relationshipsToIssuer>
      </issuerInfo>
      <securitiesInformation>
        <securitiesClassTitle>Common Stock</securitiesClassTitle>
        <brokerOrMarketmakerDetails>
          <name>Fidelity Brokerage Services LLC</name>
          <address>
            <com:street1>245 Summer Street</com:street1>
            <com:city>Boston</com:city>
            <com:stateOrCountry>MA</com:stateOrCountry>
            <com:zipCode>02110</com:zipCode>
          </address>
        </brokerOrMarketmakerDetails>
        <noOfUnitsSold>40900</noOfUnitsSold>
        <aggregateMarketValue>8659829.50</aggregateMarketValue>
        <noOfUnitsOutstanding>311100142</noOfUnitsOutstanding>
        <approxSaleDate>11/02/2023</approxSaleDate>
        <securitiesExchangeName>NYSE</securitiesExchangeName>
      </securitiesInformation>
      <securitiesToBeSold>
        <securitiesClassTitle>Common Stock</securitiesClassTitle>
        <acquiredDate>10/12/2008</acquiredDate>
        <natureOfAcquisitionTransaction>Stock Option Exercise</natureOfAcquisitionTransaction>
        <nameOfPersonfromWhomAcquired>Issuer</nameOfPersonfromWhomAcquired>
        <isGiftTransaction>N</isGiftTransaction>
        <amountOfSecuritiesAcquired>18400</amountOfSecuritiesAcquired>
        <paymentDate>10/12/2008</paymentDate>
        <natureOfPayment>Cash</natureOfPayment>
      </securitiesToBeSold>
      <securitiesToBeSold>
        <securitiesClassTitle>Common Stock</securitiesClassTitle>
        <acquiredDate>11/02/2023</acquiredDate>
        <natureOfAcquisitionTransaction>Stock Option Exercise</natureOfAcquisitionTransaction>
        <nameOfPersonfromWhomAcquired>Issuer</nameOfPersonfromWhomAcquired>
        <isGiftTransaction>N</isGiftTransaction>
        <amountOfSecuritiesAcquired>22500</amountOfSecuritiesAcquired>
        <paymentDate>11/02/2023</paymentDate>
        <natureOfPayment>Wire</natureOfPayment>
      </securitiesToBeSold>
      <nothingToReportFlagOnSecuritiesSoldInPast3Months>N</nothingToReportFlagOnSecuritiesSoldInPast3Months>
      <securitiesSoldInPast3Months>
        <sellerDetails>
          <name>2000 Ullal Family Trust</name>
          <address>
            <com:street1>c/o Arista Networks, Inc.</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 Stock</securitiesClassTitle>
        <saleDate>08/22/2023</saleDate>
        <amountOfSecuritiesSold>8000</amountOfSecuritiesSold>
        <grossProceeds>1496800.00</grossProceeds>
      </securitiesSoldInPast3Months>
      <securitiesSoldInPast3Months>
        <sellerDetails>
          <name>Adeeti Ullal Trust</name>
          <address>
            <com:street1>c/o Arista Networks, Inc.</com:street1>
            <com:street2>5453 Great American Parkway</com:street2>
            <com:city>Santa Clara</com:city>
            <com:stateOrCountry>CA</com:stateOrCountry>
            <com:zipCode>95054</com:zipCode>
          </address>
        </sellerDetails>
        <securitiesClassTitle>Common Stock</securitiesClassTitle>
        <saleDate>08/22/2023</saleDate>
        <amountOfSecuritiesSold>4000</amountOfSecuritiesSold>
        <grossProceeds>748400.00</grossProceeds>
      </securitiesSoldInPast3Months>
      <securitiesSoldInPast3Months>
        <sellerDetails>
          <name>Tarini Ullal Trust</name>
          <address>
            <com:street1>c/o Arista Networks, Inc.</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 Stock</securitiesClassTitle>
        <saleDate>08/22/2023</saleDate>
        <amountOfSecuritiesSold>4000</amountOfSecuritiesSold>
        <grossProceeds>748400.00</grossProceeds>
      </securitiesSoldInPast3Months>
      <securitiesSoldInPast3Months>
        <sellerDetails>
          <name>2000 Ullal Family Trust</name>
          <address>
            <com:street1>c/o Arista Networks, Inc.</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 Stock</securitiesClassTitle>
        <saleDate>08/24/2023</saleDate>
        <amountOfSecuritiesSold>8500</amountOfSecuritiesSold>
        <grossProceeds>1633870.00</grossProceeds>
      </securitiesSoldInPast3Months>
      <securitiesSoldInPast3Months>
        <sellerDetails>
          <name>Adeeti Ullal Trust</name>
          <address>
            <com:street1>c/o Arista Networks, Inc.</com:street1>
            <com:street2>5453 Great American Parkway</com:street2>
            <com:city>Santa Clara</com:city>
            <com:stateOrCountry>CA</com:stateOrCountry>
            <com:zipCode>95054</com:zipCode>
          </address>
        </sellerDetails>
        <securitiesClassTitle>Common Stock</securitiesClassTitle>
        <saleDate>08/24/2023</saleDate>
        <amountOfSecuritiesSold>4000</amountOfSecuritiesSold>
        <grossProceeds>768880.00</grossProceeds>
      </securitiesSoldInPast3Months>
      <securitiesSoldInPast3Months>
        <sellerDetails>
          <name>Tarini Ullal Trust</name>
          <address>
            <com:street1>c/o Arista Networks, Inc.</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 Stock</securitiesClassTitle>
        <saleDate>08/24/2023</saleDate>
        <amountOfSecuritiesSold>4000</amountOfSecuritiesSold>
        <grossProceeds>768880.00</grossProceeds>
      </securitiesSoldInPast3Months>
      <securitiesSoldInPast3Months>
        <sellerDetails>
          <name>2000 Ullal Family Trust</name>
          <address>
            <com:street1>c/o Arista Networks, Inc.</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 Stock</securitiesClassTitle>
        <saleDate>10/31/2023</saleDate>
        <amountOfSecuritiesSold>9000</amountOfSecuritiesSold>
        <grossProceeds>1791630.00</grossProceeds>
      </securitiesSoldInPast3Months>
      <securitiesSoldInPast3Months>
        <sellerDetails>
          <name>Adeeti Ullal Trust</name>
          <address>
            <com:street1>c/o Arista Networks, Inc.</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 Stock</securitiesClassTitle>
        <saleDate>10/31/2023</saleDate>
        <amountOfSecuritiesSold>4000</amountOfSecuritiesSold>
        <grossProceeds>796280.00</grossProceeds>
      </securitiesSoldInPast3Months>
      <securitiesSoldInPast3Months>
        <sellerDetails>
          <name>Tarini Ullal Trust</name>
          <address>
            <com:street1>c/o Arista Networks, Inc.</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 Stock</securitiesClassTitle>
        <saleDate>10/31/2023</saleDate>
        <amountOfSecuritiesSold>4000</amountOfSecuritiesSold>
        <grossProceeds>796280.00</grossProceeds>
      </securitiesSoldInPast3Months>
      <securitiesSoldInPast3Months>
        <sellerDetails>
          <name>2000 Ullal Family Trust</name>
          <address>
            <com:street1>c/o Arista Networks, Inc.</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 Stock</securitiesClassTitle>
        <saleDate>11/01/2023</saleDate>
        <amountOfSecuritiesSold>9500</amountOfSecuritiesSold>
        <grossProceeds>1947500.00</grossProceeds>
      </securitiesSoldInPast3Months>
      <securitiesSoldInPast3Months>
        <sellerDetails>
          <name>Adeeti Ullal Trust</name>
          <address>
            <com:street1>c/o Arista Networks, Inc.</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 Stock</securitiesClassTitle>
        <saleDate>11/01/2023</saleDate>
        <amountOfSecuritiesSold>4000</amountOfSecuritiesSold>
        <grossProceeds>820000.00</grossProceeds>
      </securitiesSoldInPast3Months>
      <securitiesSoldInPast3Months>
        <sellerDetails>
          <name>Tarini Ullal Trust</name>
          <address>
            <com:street1>c/o Arista Networks, Inc.</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 Stock</securitiesClassTitle>
        <saleDate>11/01/2023</saleDate>
        <amountOfSecuritiesSold>4000</amountOfSecuritiesSold>
        <grossProceeds>820000.00</grossProceeds>
      </securitiesSoldInPast3Months>
      <remarks>18,400 shares sold for the following Trust accounts, Jayshree Ullal, Trustee. 2000 Ullal Family Trust (10,000 shares) Adeeti Ullal Trust (4,200 shares) Tarini Ullal Trust (4,200 shares) and 22,500 shares are from Jayshree Ullal individual account.</remarks>
      <noticeSignature>
        <noticeDate>11/02/2023</noticeDate>
        <planAdoptionDates>
          <planAdoptionDate>09/14/2022</planAdoptionDate>
        </planAdoptionDates>
        <signature>/s/ Myra King, as a duly authorized representative of Fidelity Brokerage Services LLC, as attorney-in-fact for Jayshree Ullal</signature>
      </noticeSignature>
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text: 144
  0001605809
  XXXXXXXX
  LIVE
  0001596532
  Arista Networks, Inc.
  001-36468
  5453 GREAT AMERICA PARKWAY
  SANTA CLARA
  CA
  95054
  408-547-5500
  Ullal Jayshree
  Officer
  Common Stock
  Fidelity Brokerage Services LLC
  245 Summer Street
  Boston
  MA
  02110
  40900
  8659829.50
  311100142
  11/02/2023
  NYSE
  Common Stock
  10/12/2008
  Stock Option Exercise
  Issuer
  N
  18400
  10/12/2008
  Cash
  Common Stock
  11/02/2023
  Stock Option Exercise
  Issuer
  N
  22500
  11/02/2023
  Wire
  N
  2000 Ullal Family Trust
  c/o Arista Networks, Inc.
  5453 Great America Parkway
  Santa Clara
  CA
  95054
  Common Stock
  08/22/2023
  8000
  1496800.00
  Adeeti Ullal Trust
  c/o Arista Networks, Inc.
  5453 Great American Parkway
  Santa Clara
  CA
  95054
  Common Stock
  08/22/2023
  4000
  748400.00
  Tarini Ullal Trust
  c/o Arista Networks, Inc.
  5453 Great America Parkway
  Santa Clara
  CA
  95054
  Common Stock
  08/22/2023
  4000
  748400.00
  2000 Ullal Family Trust
  c/o Arista Networks, Inc.
  5453 Great America Parkway
  Santa Clara
  CA
  95054
  Common Stock
  08/24/2023
  8500
  1633870.00
  Adeeti Ullal Trust
  c/o Arista Networks, Inc.
  5453 Great American Parkway
  Santa Clara
  CA
  95054
  Common Stock
  08/24/2023
  4000
  768880.00
  Tarini Ullal Trust
  c/o Arista Networks, Inc.
  5453 Great America Parkway
  Santa Clara
  CA
  95054
  Common Stock
  08/24/2023
  4000
  768880.00
  2000 Ullal Family Trust
  c/o Arista Networks, Inc.
  5453 Great America Parkway
  Santa Clara
  CA
  95054
  Common Stock
  10/31/2023
  9000
  1791630.00
  Adeeti Ullal Trust
  c/o Arista Networks, Inc.
  5453 Great America Parkway
  Santa Clara
  CA
  95054
  Common Stock
  10/31/2023
  4000
  796280.00
  Tarini Ullal Trust
  c/o Arista Networks, Inc.
  5453 Great America Parkway
  Santa Clara
  CA
  95054
  Common Stock
  10/31/2023
  4000
  796280.00
  2000 Ullal Family Trust
  c/o Arista Networks, Inc.
  5453 Great America Parkway
  Santa Clara
  CA
  95054
  Common Stock
  11/01/2023
  9500
  1947500.00
  Adeeti Ullal Trust
  c/o Arista Networks, Inc.
  5453 Great America Parkway
  Santa Clara
  CA
  95054
  Common Stock
  11/01/2023
  4000
  820000.00
  Tarini Ullal Trust
  c/o Arista Networks, Inc.
  5453 Great America Parkway
  Santa Clara
  CA
  95054
  Common Stock
  11/01/2023
  4000
  820000.00
  18,400 shares sold for the following Trust accounts, Jayshree Ullal, Trustee. 2000 Ullal Family Trust (10,000 shares) Adeeti Ullal Trust (4,200 shares) Tarini Ullal Trust (4,200 shares) and 22,500 shares are from Jayshree Ullal individual account.
  11/02/2023
  09/14/2022
  /s/ Myra King, as a duly authorized representative of Fidelity Brokerage Services LLC, as attorney-in-fact for Jayshree Ullal