AGREEMENT TO FILE JOINT STATEMENTS ON SCHEDULE 13G

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                                   Exhibit 1

                             AGREEMENT TO FILE JOINT
                           STATEMENTS ON SCHEDULE 13G

     THIS AGREEMENT is entered into as of the 12th day of February, 2001 by and
among Xxxxx Xxxxxxxx, a United States citizen; Xxxxxxx X. Xxxxxxxxx, a United
States citizen; and Xxxxx Xxxxxxxx and Xxxxxxx X. Xxxxxxxxx, or their
successors, as Trustees of the Xxxxx Xxxxxxxx and Xxxxxxx X. Xxxxxxxxx Family
Trust dated October 13, 1999, a trust established under the laws of the State of
California (the "Xxxxxxxx and Xxxxxxxxx Family Trust").

                             W I T N E S S E T H

     WHEREAS, Xx. Xxxxxxxx, Xx. Xxxxxxxxx and the Xxxxxxxx and Xxxxxxxxx Family
Trust may be deemed to have held or to hold beneficial ownership, individually
and/or in the aggregate, of more than five percent of the shares of the Common
Stock of Ixia, a California corporation (the "Common Stock"), as of December 31,
2000 and as of December 31 of each calendar year thereafter;

     WHEREAS, the Common Stock has been registered by Ixia under Section 12(g)
of the Securities Exchange Act of 1934 (the "Act");

     WHEREAS, pursuant to Rule 13d-1 under the Act, any person who holds more
than five percent of such a class of registered equity securities as of the end
of any calendar year is, under certain circumstances, permitted and/or required
to file with the Securities and Exchange Commission a statement on Schedule 13G;
and

     WHEREAS, Rule 13d-1(f) under the Act provides that, whenever two or more
persons are permitted to file a statement on Schedule 13G with respect to the
same securities, only one such statement need be filed, provided such persons
agree in writing that such statement is filed on behalf of each of them.

     NOW, THEREFORE, in consideration of the foregoing premises and the mutual
covenants and agreements contained herein, the parties hereby agree as follows:

     Each of Xx. Xxxxxxxx, Xx. Xxxxxxxxx and the Xxxxxxxx and Xxxxxxxxx Family
Trust hereby agrees, in accordance with Rule 13d-1(f) under the Act, to file
jointly any and all statements and amended statements on Schedule 13G (the
"Statements") which may now or hereafter be required to be filed by them with
respect to the Common Stock beneficially owned or deemed to be beneficially
owned by each of them pursuant to Sections 13(d) and 13(g) of the Act and the
rules thereunder.



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     Each of Xx. Xxxxxxxx, Xx. Xxxxxxxxx and the Xxxxxxxx and Xxxxxxxxx Family
Trust, hereby agrees that such Statements shall be filed jointly on behalf of
each of them and that a copy of this Agreement shall be filed as an exhibit
thereto in accordance with Rule 13d-1(f)(iii) under the Act.

     This Agreement may be executed in one or more counterparts which together
shall constitute one agreement.

     IN WITNESS WHEREOF, the parties have executed this Agreement or caused this
Agreement to be signed on their behalf by their duly authorized representatives
as of the date first above written.

Xxxxx Xxxxxxxx
------------------------------------------
Xxxxx Xxxxxxxx



Xxxxxxx X. Xxxxxxxxx
------------------------------------------
Xxxxxxx X. Xxxxxxxxx




THE XXXXX XXXXXXXX AND XXXXXXX X. XXXXXXXXX
FAMILY TRUST DATED OCTOBER 13, 1999


    Xxxxx Xxxxxxxx
By:---------------------------------------
    Xxxxx Xxxxxxxx, Trustee



    Xxxxxxx X. Xxxxxxxxx
By:---------------------------------------
    Xxxxxxx X. Xxxxxxxxx, Trustee