FORM 4
[ ] Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).         
UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP OF SECURITIES
                                                                                  
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Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934 or Section 30(h) of the Investment Company Act of 1940
                      

1. Name and Address of Reporting Person *

Duda Kenneth 		2. Issuer Name and Ticker or Trading Symbol

Arista Networks, Inc. [ ANET ] 		5. Relationship of Reporting Person(s) to Issuer (Check all applicable)

_____ Director                      _____ 10% Owner
__ X __ Officer (give title below)      _____ Other (specify below)
CTO and SVP Software Eng.
(Last)          (First)          (Middle)

C/O ARISTA NETWORKS, INC., 5453 GREAT AMERICA PARKWAY 		3. Date of Earliest Transaction (MM/DD/YYYY)

12/13/2017
(Street)

SANTA CLARA, CA 95054
(City)        (State)        (Zip)
4. If Amendment, Date Original Filed (MM/DD/YYYY)

12/15/2017 
6. Individual or Joint/Group Filing (Check Applicable Line)

_ X _ Form filed by One Reporting Person
___ Form filed by More than One Reporting Person

Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned
1.Title of Security
(Instr. 3) 		2. Trans. Date 2A. Deemed Execution Date, if any 3. Trans. Code
(Instr. 8) 		4. Securities Acquired (A) or Disposed of (D)
(Instr. 3, 4 and 5) 		5. Amount of Securities Beneficially Owned Following Reported Transaction(s)
(Instr. 3 and 4) 		6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4) 7. Nature of Indirect Beneficial Ownership (Instr. 4)
Code V Amount (A) or (D) Price
Common Stock   12/19/2017     S    127576   (1) D $235.1546   (1) 889568   I   by Trust   (2)

Table II - Derivative Securities Beneficially Owned ( e.g. , puts, calls, warrants, options, convertible securities)
1. Title of Derivate Security
(Instr. 3) 		2. Conversion or Exercise Price of Derivative Security 3. Trans. Date 3A. Deemed Execution Date, if any 4. Trans. Code
(Instr. 8) 		5. Number of Derivative Securities Acquired (A) or Disposed of (D)
(Instr. 3, 4 and 5) 		6. Date Exercisable and Expiration Date 7. Title and Amount of Securities Underlying Derivative Security
(Instr. 3 and 4) 		8. Price of Derivative Security
(Instr. 5) 		9. Number of derivative Securities Beneficially Owned Following Reported Transaction(s) (Instr. 4) 10. Ownership Form of Derivative Security: Direct (D) or Indirect (I) (Instr. 4) 11. Nature of Indirect Beneficial Ownership (Instr. 4)
Code V (A) (D) Date Exercisable Expiration Date Title Amount or Number of Shares

Explanation of Responses:
(1)  On December 13, 2017, the reporting person made an irrevocable contribution of 130,000 shares of ANET common stock to an exchange fund in exchange for shares of the exchange fund. Upon the closing of the exchange fund on December 19, 2017, 127,576 shares of ANET common stock contributed by the reporting person were accepted by the exchange fund. The reporting person is amending this Form 4 to reflect the final number of shares accepted by the exchange fund and the value of such shares.
(2)  These shares are held by a family trust for which the reporting person is a trustee.

Reporting Owners
Reporting Owner Name / Address
Relationships
Director 10% Owner Officer Other
Duda Kenneth
C/O ARISTA NETWORKS, INC.
5453 GREAT AMERICA PARKWAY
SANTA CLARA, CA 95054

CTO and SVP Software Eng.

Signatures
Marc Taxay, Attorney-in-Fact for Kenneth Duda 12/21/2017
** Signature of Reporting Person Date


Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
* If the form is filed by more than one reporting person, see Instruction 4(b)(v).
** Intentional misstatements or omissions of facts constitute Federal Criminal Violations. See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).
Note: File three copies of this Form, one of which must be manually signed. If space is insufficient, see Instruction 6 for procedure.
Persons who respond to the collection of information contained in this form are not required to respond unless the form displays a currently valid OMB control number.
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