Exhibit 99.1
JOINT FILING AGREEMENT
In accordance with Rule 13d-1(k)(1)(iii) under the Securities Exchange Act of 1934, as amended, the persons named below agree to the joint filing on behalf of each of them of a Statement on Schedule 13D (including additional amendments thereto) with respect to the shares of Common Stock, $0.001 par value per share, of Extreme Networks, Inc. This Joint Filing Agreement shall be filed as an Exhibit to such Statement.
Dated: June 23, 2010
RAMIUS VALUE AND OPPORTUNITY MASTER FUND LTD By: RCG Starboard Advisors, LLC, its investment manager RAMIUS NAVIGATION MASTER FUND LTD By: Ramius Advisors, LLC, its investment advisor RAMIUS ENTERPRISE MASTER FUND LTD By: Ramius Advisors, LLC, its investment advisor RCG STARBOARD ADVISORS, LLC By: Ramius LLC, its sole member RAMIUS OPTIMUM INVESTMENTS LLC By: Ramius Advisors, LLC, its managing member | RAMIUS ADVISORS, LLC By: Ramius LLC, its sole member RAMIUS LLC By: Cowen Group, Inc., its sole member COWEN GROUP, INC. RCG HOLDINGS LLC By: C4S & Co., L.L.C., its managing member C4S & CO., L.L.C. |
| By: | /s/ Owen S. Littman | |
| Name: | Owen S. Littman | |
| Title: | Authorized Signatory | |
/s/ Owen S. Littman | |
| OWEN S. LITTMAN | |
| As attorney-in-fact for Jeffrey M. Solomon, Peter A. Cohen, Morgan B. Stark and Thomas W. Strauss |