Ciena to Webcast Analyst Event

  
    
  
  
    
      Ciena® Corporation 
      (NASDAQ:CIEND)*, the network specialist, will host a live webcast of its 
      Analyst Day event to be held on Tuesday, October 10, 2006, beginning at 
      approximately 8:30 AM Eastern and lasting through approximately 4:00 PM 
      Eastern.
    
    
      Ciena’s key differentiator has always been the 
      practical application of technology and an appreciation of the business 
      needs of our customers. In our day-long event, we will highlight how our 
      network specialist approach is expected to continue to drive momentum 
      and fuel growth in our business as service provider and enterprise 
      networks alike transition to improve service delivery and enable the 
      next-generation of services and applications.
    
    
      The webcast will be listen-only and will be accessible and archived for 
      replay at http://www.ciena.com/investors 
      in the Events section.
    
    
      *Effective as of 5:00 p.m. EDT on Friday, September 22, 2006, Ciena 
      completed a one-for-seven reverse split of Ciena common stock. Ciena’s 
      common stock began trading on a split-adjusted basis when the market 
      opened on Monday, September 25, 2006. For a period of approximately 20 
      days, NASDAQ will append a “D” 
      to Ciena’s stock symbol in order to inform the 
      investment community of the reverse stock split.
    
    
      NOTE TO INVESTORS
    
    
      This press release contains certain forward-looking statements based on 
      current expectations, forecasts and assumptions that involve risks and 
      uncertainties. These statements are based on information available to 
      the Company as of the date hereof; and Ciena’s 
      actual results could differ materially from those stated or implied, due 
      to risks and uncertainties associated with its business, which include 
      the risk factors disclosed in its Report on Form 10-Q filed with the 
      Securities and Exchange Commission on August 31, 2006. Forward-looking 
      statements include statements regarding Ciena’s 
      expectations, beliefs, intentions or strategies regarding the future and 
      can be identified by forward-looking words such as “anticipate,” 
      “believe,” “could,” 
      “estimate,” “expect,” 
      “intend,” “may,” 
      “should,” “will,” 
      and “would” or 
      similar words. Ciena assumes no obligation to update the information 
      included in this press release, whether as a result of new information, 
      future events or otherwise.
    
    
      About Ciena
    
    
      Ciena Corporation is the network specialist, focused on expanding the 
      possibilities for its customers’ networks 
      while reducing their cost of ownership. The company’s 
      systems, software and services target and cure specific network pain 
      points so that telcos, cable operators, governments and enterprises can 
      best exploit the new applications that are driving their businesses 
      forward. For more information, visit www.ciena.com.
    
  
Ciena(R) Corporation (NASDAQ:CIEND)*, the network specialist, will
host a live webcast of its Analyst Day event to be held on Tuesday,
October 10, 2006, beginning at approximately 8:30 AM Eastern and
lasting through approximately 4:00 PM Eastern.

   Ciena's key differentiator has always been the practical
application of technology and an appreciation of the business needs of
our customers. In our day-long event, we will highlight how our
network specialist approach is expected to continue to drive momentum
and fuel growth in our business as service provider and enterprise
networks alike transition to improve service delivery and enable the
next-generation of services and applications.

   The webcast will be listen-only and will be accessible and
archived for replay at http://www.ciena.com/investors in the Events
section.

   *Effective as of 5:00 p.m. EDT on Friday, September 22, 2006,
Ciena completed a one-for-seven reverse split of Ciena common stock.
Ciena's common stock began trading on a split-adjusted basis when the
market opened on Monday, September 25, 2006. For a period of
approximately 20 days, NASDAQ will append a "D" to Ciena's stock
symbol in order to inform the investment community of the reverse
stock split.

   NOTE TO INVESTORS

   This press release contains certain forward-looking statements
based on current expectations, forecasts and assumptions that involve
risks and uncertainties. These statements are based on information
available to the Company as of the date hereof; and Ciena's actual
results could differ materially from those stated or implied, due to
risks and uncertainties associated with its business, which include
the risk factors disclosed in its Report on Form 10-Q filed with the
Securities and Exchange Commission on August 31, 2006. Forward-looking
statements include statements regarding Ciena's expectations, beliefs,
intentions or strategies regarding the future and can be identified by
forward-looking words such as "anticipate," "believe," "could,"
"estimate," "expect," "intend," "may," "should," "will," and "would"
or similar words. Ciena assumes no obligation to update the
information included in this press release, whether as a result of new
information, future events or otherwise.

   About Ciena

   Ciena Corporation is the network specialist, focused on expanding
the possibilities for its customers' networks while reducing their
cost of ownership. The company's systems, software and services target
and cure specific network pain points so that telcos, cable operators,
governments and enterprises can best exploit the new applications that
are driving their businesses forward. For more information, visit
www.ciena.com.