UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

WASHINGTON, D.C. 20549

SCHEDULE 14A

(RULE 14a-101)

SCHEDULE 14A INFORMATION

Proxy Statement Pursuant to Section 14(a) of the

Securities Exchange Act of 1934

Filed by the Registrant  ☒                             Filed by a Party other than the Registrant  ☐

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☐	Preliminary Proxy Statement
☐	Confidential, for Use of the Commission Only (as permitted by Rule 14a-6(e)(2))
☐	Definitive Proxy Statement
☒	Definitive Additional Materials
☐	Soliciting Material Pursuant to § 240.14a-12.
Extreme Networks, Inc.
(Name of Registrant as Specified in Its Charter)
(Name of Person(s) Filing Proxy Statement if Other Than the Registrant)
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***  Exercise Your Right to Vote  ***

Important Notice Regarding the Availability of Proxy Materials for the
Stockholder Meeting to Be Held on November 09, 2017
	Meeting Information
EXTREME NETWORKS, INC.	Meeting Type: Annual Meeting
	For holders as of: September 18, 2017
	Date: November 09, 2017         Time: 8:00 AM EST
	Location:  2121 RDU Center Drive                     Morrisville, North Carolina 27560
	You are receiving this communication because you hold shares in the above named company.
	This is not a ballot. You cannot use this notice to vote these shares. This communication presents only an overview of the more complete proxy materials that are available to you on the Internet. You may view the proxy materials online at www.proxyvote.com or easily request a paper copy (see reverse side).
	We encourage you to access and review all of the important information contained in the proxy materials before voting.
	See the reverse side of this notice to obtain  proxy materials and voting instructions.

	—  Before You Vote  — How to Access the Proxy Materials
	Proxy Materials Available to VIEW or RECEIVE:
	1. Notice & Proxy Statement    2. Annual Report
	How to View Online:
	Have the information that is printed in the box marked by the arrow (located on the following page) and visit: www.proxyvote.com.
	How to Request and Receive a PAPER or E-MAIL Copy:
	If you want to receive a paper or e-mail copy of these documents, you must request one. There is NO charge for requesting a copy. Please choose one of the following methods to make your request:
	1) BY INTERNET:      www.proxyvote.com
	2) BY TELEPHONE: 1-800-579-1639
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	*   If requesting materials by e-mail, please send a blank e-mail with the information that is printed in the box marked by the arrow (located on the following page) in the subject line. Requests, instructions and other inquiries sent to this e-mail address will NOT be forwarded to your investment advisor. Please make the request as instructed above on or before October 26, 2017 to facilitate timely delivery.
	—  How To Vote  — Please Choose One of the Following Voting Methods
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	Vote By Mail: You can vote by mail by requesting a paper copy of the materials, which will include a proxy card.	Internal Use Only

	Voting items
	The Board of Directors recommends you vote FOR the following:   1.      Elect six directors to the Board of Directors for a one-year term:            Nominees   01     Charles P. Carinalli         02     Kathleen M. Holmgren   06     John C. Shoemaker	03    Rajendra Khanna        04    Edward H. Kennedy         05    Edward B. Meyercord
	The Board of Directors recommends you vote FOR the following proposal:   2.     Hold an advisory vote to approve our named executive officers’ compensation.   The Board of Directors recommends you vote 1 YEAR on the following proposal:   3.     Hold an advisory vote on the frequency of holding future advisory votes to approve our named executive officers’ compensation.   The Board of Directors recommends you vote FOR proposals 4, 5 and 6.   4.     Ratify the appointment of KPMG LLP  as our independent auditors for our fiscal year ending June 30, 2018.   5.     Ratify Amendment No. 5 to the Company’s Amended and Restated Rights Agreement, which extends that agreement through May 31, 2018.   6.     Approve the Amendment and Restatement of the Extreme Networks, Inc. 2013 Equity Incentive Plan.
	The Board of Directors recommends you vote AGAINST the following proposal:   7.     Hold a vote on a stockholder proposal regarding simple majority voting, if properly presented at the meeting.   NOTE: Transact other business as may properly come before the meeting or any adjournment thereof.

  Reserved for Broadridge Internal Control Information               

NAME
THE COMPANY NAME INC. - COMMON	123,456,789,012.12345
THE COMPANY NAME INC. - CLASS A	123,456,789,012.12345
THE COMPANY NAME INC. - CLASS B	123,456,789,012.12345
THE COMPANY NAME INC. - CLASS C	123,456,789,012.12345
THE COMPANY NAME INC. - CLASS D	123,456,789,012.12345
THE COMPANY NAME INC. - CLASS E	123,456,789,012.12345
THE COMPANY NAME INC. - CLASS F	123,456,789,012.12345
THE COMPANY NAME INC. - 401 K	123,456,789,012.12345