BROCADE COMMUNICATIONS SYSTEMS, INC.
1999 STOCK PLAN
(as amended and restated on October 21, 2005)
1. Purposes of the Plan . The purposes of this 1999 Stock Plan are:
Options granted under the Plan may be Incentive Stock Options or Nonstatutory Stock Options, as
determined by the Administrator at the time of grant. Stock Purchase Rights may also be granted under the Plan.
2. Definitions . As used herein, the following definitions shall apply:
(a) “ Administrator ” means the Board or any of its Committees as shall be administering the Plan, in
accordance with Section 4 of the Plan.
(b) “ Applicable Laws ” means the requirements relating to the administration of stock option plans under
U. S. state corporate laws, U.S. federal and state securities laws, the Code, any stock exchange or quotation
system on which the Common Stock is listed or quoted and the applicable laws of any foreign country or
jurisdiction where Options or Stock Purchase Rights are, or will be, granted under the Plan.
(c) “ Board ” means the Board of Directors of the Company.
(d) “ Code ” means the Internal Revenue Code of 1986, as amended.
(e) “ Committee ” means a committee of Directors appointed by the Board in accordance with Section 4
of the Plan.
(f) “ Common Stock ” means the common stock of the Company.
(g) “ Company ” means Brocade Communications Systems, Inc., a Delaware corporation.
(h) “ Consultant ” means any person, including an advisor, engaged by the Company or a Parent or
Subsidiary to render services to such entity.
(i) “ Director ” means a member of the Board.
(j) “ Disability ” means total and permanent disability as defined in Section 22(e)(3) of the Code.
(k) “ Employee ” means any individual, including Officers and Directors, employed by the Company or any
Parent or Subsidiary of the Company. For purposes of the Plan, the employment relation