Sec Form 4 Filing - BUCKLY RONALD W @ IXIA - 2013-02-07

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 Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934, Section 17(a) of the Public Utility Holding Company Act of 1935 or Section 30(h) of the Investment Company Act of 1940

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1. Name and Address of Reporting Person BUCKLY RONALD W 2. Issuer Name and Ticker or Trading Symbol IXIA [ XXIA] 5. Relationship of Reporting Person(s) to Issuer (Check all applicable) _____ Director _____ 10% Owner X __ Officer (give title below) _____ Other (specify below) Senior V.P. (see Remarks) (Last) (First) (Middle) C/O IXIA, 26601 WEST AGOURA ROAD 3. Date of Earliest Transaction (MM/DD/YY) 02/07/2013 (Street) CALABASAS, CA91302 4. If Amendment, Date Original Filed (MM/DD/YY) 6. Individual or Joint/Group Filing (Check Applicable Line) __ X __ Form filed by One Reporting Person _____ Form filed by More than One Reporting Person (City) (State) (Zip)

Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned 1.Title of Security (Instr. 3) 2. Transaction Date (MM/DD/YY) 2A. Deemed Execution Date, if any (MM/DD/YY) 3. Transaction 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 02/07/2013 A( 1 ) 8,300 A $ 0 554,354 D Common Stock 02/08/2013 S 15,100 D $ 20.57 539,254 D Common Stock 02/08/2013 S 8,000 D $ 20.81 531,254 D Common Stock 02/08/2013 S 50,000 D $ 20.531 481,254 D Common Stock 02/11/2013 S 21,900 D $ 20.6165 459,354 D Common Stock 02/11/2013 S 5,000 D $ 20.545 454,354 D Common Stock 24,100 I By brother-in-law as Custodian for minor child under the California Uniform Transfers to Minors Act Common Stock 24,100 I By Child Common Stock 240,000 I By LLC for the benefit of the Reporting Person's two children

Table II - Derivative Securities Acquired, Disposed of, or Beneficially Owned ( e.g. , puts, calls, warrants, options, convertible securities) 1. Title of Derivative Security (Instr. 3) 2. Conversion or Exercise Price of Derivative Security 3. Transaction Date (MM/DD/YY) 3A. Deemed Execution Date, if any (MM/DD/YY) 4. Transaction 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 (MM/DD/YY) 7. Title and Amount of Underlying Securities (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 Employee Stock Option (Right to Buy) $ 20.94 02/07/2013 A 25,000 ( 2 ) 02/07/2020 Common Stock 25,000 $ 0 25,000 D

Reporting Owners Reporting Owner Name / Address Relationships Director 10% Owner Officer Other BUCKLY RONALD W C/O IXIA 26601 WEST AGOURA ROAD CALABASAS, CA91302 Senior V.P. (see Remarks) Signatures Ronald W. Buckly 02/11/2013 Signature of Reporting Person Date

Explanation of Responses:

( 1 )Restricted Stock Units for 8,300 shares vest and shares will be issued in sixteen equal quarterly installments with the first installment vesting on 5/15/13 and one additional installment vesting on the 15th day of the second calendar month of each of the fifteen calendar quarters thereafter. Each Restricted Stock Unit represents the right to receive one share of Ixia Common Stock to be issued and delivered upon the applicable vesting date. ( 2 )Option to purchase 25,000 shares vest and become exercisable in sixteen quarters commencing on 6/30/13.

Remarks: Reporting Person is an Officer of the Issuer and his full title is: Senior Vice President, Corporate Affairs, General Counsel and Corporate Secretary.

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).

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