Exhibit 21.1

LIST OF SUBSIDIARIES

     BROCADE COMMUNICATIONS SYSTEMS, INC.

     BROCADE COMMUNICATIONS SYSTEMS SKYPORT LLC

     NUVIEW, INC

     MCDATA CORPORATION

     MCDATA SERVICES CORPORATION

     BROCADE COMMUNICATIONS LUXEMBOURG HOLDINGS SARL

     BROCADE COMMUNICATIONS LUXEMBOURG HOLDINGS II SARL

     BROCADE COMMUNICATIONS LUXEMBOURG SARL

     BROCADE COMMUNICATIONS SWITZERLAND SARL

     BROCADE COMMUNICATIONS SERVICES SWITZERLAND SARL

Brocade has an additional 48 international subsidiaries and 9 domestic subsidiaries, which have been omitted pursuant to Item 601(b)(21)(ii) of Regulation S-K.