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      <liveTestFlag>LIVE</liveTestFlag>


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    <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>13500</noOfUnitsSold>
      <aggregateMarketValue>2390040.00</aggregateMarketValue>
      <noOfUnitsOutstanding>309580630</noOfUnitsOutstanding>
      <approxSaleDate>08/01/2023</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>13500</amountOfSecuritiesAcquired>
      <paymentDate>10/12/2008</paymentDate>
      <natureOfPayment>Cash</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>05/30/2023</saleDate>
      <amountOfSecuritiesSold>7500</amountOfSecuritiesSold>
      <grossProceeds>1283325.00</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>05/30/2023</saleDate>
      <amountOfSecuritiesSold>3000</amountOfSecuritiesSold>
      <grossProceeds>513330.00</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>05/30/2023</saleDate>
      <amountOfSecuritiesSold>3000</amountOfSecuritiesSold>
      <grossProceeds>513330.00</grossProceeds>
    </securitiesSoldInPast3Months>
    <remarks>Shares sold for the following Trust accounts, Jayshree Ullal, Trustee. 2000 Ullal Family Trust (7,500 shares) Adeeti Ullal Trust (3,000 shares) Tarini Ullal Trust (3,000 shares)</remarks>
    <noticeSignature>
      <noticeDate>08/01/2023</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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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
13500
2390040.00
309580630
08/01/2023
NYSE
Common Stock
10/12/2008
Stock Option Exercise
Issuer
N
13500
10/12/2008
Cash
N
2000 Ullal Family Trust
c/o Arista Networks, Inc
5453 Great America Parkway
Santa Clara
CA
95054
Common Stock
05/30/2023
7500
1283325.00
Adeeti Ullal Trust
c/o Arista Networks, Inc
5453 Great America Parkway
Santa Clara
CA
95054
Common Stock
05/30/2023
3000
513330.00
Tarini Ullal Trust
c/o Arista Networks, Inc
5453 Great America Parkway
Santa Clara
CA
95054
Common Stock
05/30/2023
3000
513330.00
Shares sold for the following Trust accounts, Jayshree Ullal, Trustee. 2000 Ullal Family Trust (7,500 shares) Adeeti Ullal Trust (3,000 shares) Tarini Ullal Trust (3,000 shares)
08/01/2023
09/14/2022
/s/ Myra King, as a duly authorized representative of Fidelity Brokerage Services LLC, as attorney-in-fact for Jayshree Ullal