Attached files

file filename
EX-23.1 - EXHIBIT 23.1 - CIENA CORPa2017103110kex231pwcconsent.htm
10-K - 10-K - CIENA CORPa20171031financials.htm
EX-32.2 - EXHIBIT 32.2 - CIENA CORPa2017103110kex322.htm
EX-31.2 - EXHIBIT 31.2 - CIENA CORPa2017103110kex312.htm
EX-31.1 - EXHIBIT 31.1 - CIENA CORPa2017103110kex311.htm
EX-21.1 - EXHIBIT 21.1 - CIENA CORPa2017103110kex211.htm
EX-12.1 - EXHIBIT 12.1 - CIENA CORPa2017103110kex121.htm
EX-10.5 - EXHIBIT 10.5 - CIENA CORPex105-formof2017msuagreeme.htm


EXHIBIT 32.1
CIENA CORPORATION
Written Statement of Chief Executive Officer
Pursuant to Section 906 of the Sarbanes-Oxley Act of 2002

     The undersigned, the Chief Executive Officer of Ciena Corporation (the “Company”), hereby certifies that, to his knowledge, on the date hereof:
(a) the Report on Form 10-K of the Company for the year ended October 31, 2017 filed on the date hereof with the Securities and Exchange Commission (the “Report”) fully complies with the requirements of Section 13(a) or 15(d) of the Securities Exchange Act of 1934; and
(b) information contained in the Report fairly presents, in all material respects, the financial condition and results of operations of the Company.

/s/ Gary B. Smith  
Gary B. Smith 
President and Chief Executive Officer 
December 22, 2017

A signed original of this written statement required by Section 906, or other document authenticating, acknowledging, or otherwise adopting the signature that appears in typed form within the electronic version of this written statement required by Section 906, has been provided to Ciena Corporation and will be retained by Ciena Corporation and furnished to the Securities and Exchange Commission or its staff upon request.