ITEM 7.01 - REGULATION FD DISCLOSURE
On January 29, 2013, Ciena Corporation (the "Company") made available on its
corporate website at http://investor.ciena.com/financials.cfm supplemental
unaudited segment financial information for the fiscal years ended October 31,
2011 and 2012, and each fiscal quarter therein, with financial results for these
prior periods recast to reflect the Company's newly organized operating segments
implemented effective for fiscal 2013.