CUSIP No. 45173E
CUSIP No. 45173E
Exhibit I
AGREEMENT
Pursuant to Rule 13d-1(k)(1) under the Securities Exchange Act of 1934,
as amended, the undersigned hereby agree that only one statement containing the
information required by Schedule 13G need be filed with respect to the ownership
by each of the undersigned of the shares of Common Stock of Ikanos
Communications, Inc.
EXECUTED as a sealed instrument this 14th day of February, 2006.
GREYLOCK X LIMITED PARTNERSHIP
By: Greylock X GP Limited Partnership
General Partner
By: /s/ Xxxxxxx X. Xxxxxx
------------------------------
Xxxxxxx X. Xxxxxx
Managing Partner
GREYLOCK X-A LIMITED PARTNERSHIP
By: Greylock X GP Limited Partnership
General Partner
By: /s/ Xxxxxxx X. Xxxxxx
-----------------------------------
Xxxxxxx X. Xxxxxx
Managing Partner
GREYLOCK X GP LIMITED PARTNERSHIP
By: /s/ Xxxxxxx X. Xxxxxx
-----------------------------------
Xxxxxxx X. Xxxxxx, Managing Partner
/s/ Xxxxxxx X. Xxxxxx
---------------------------------------
Xxxxxxx X. Xxxxxx
Page 9 of 9 pages
