CIENA CORP
4, 1997-10-10
TELEPHONE & TELEGRAPH APPARATUS
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UNITED STATES SECURITIES AND EXCHANGE COMMISSION
WASHINGTON, D.C. 20549
FORM 4
STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP
( ) Check this box if no longer subject to Section 16.
Form 4 or Form 5 obligations may continue. See Instructions 1(b).
1. Name and Address of Reporting Person
   Sevin Rosen Fund V, L.P. 
   Two Galleria Tower
   13455 Noel Road, Suite 1670
   Dallas, TX  75240
2. Issuer Name and Ticker or Trading Symbol
   CIENA Corporation
   ("CIEN")
3. IRS or Social Security Number of Reporting Person (Voluntary)
   
4. Statement for Month/Year
   February 1997
5. If Amendment, Date of Original (Month/Year)
   February 5, 1997
6. Relationship of Reporting Person(s) to Issuer (Check all applicable)
   ( ) Director (X) 10% Owner ( ) Officer (give title below) ( ) Other
   (specify below)
   
7. Individual or Joint/Group Filing (Check Applicable Line)
   (X) Form filed by One Reporting Person
   ( ) Form filed by More than One Reporting Person
<TABLE>
<CAPTION>
___________________________________________________________________________________________________________________________________
 Table I -- Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned                                                 |
___________________________________________________________________________________________________________________________________|
1. Title of Security       |2.    |3.    |4.Securities Acquired (A)         |5.Amount of        |6.Dir |7.Nature of Indirect       |
                           | Transaction |  or Disposed of (D)              |  Securities       |ect   |  Beneficial Ownership     |
                           |      |      |                                  |  Beneficially     |(D)or |                           |
                           |      |    | |                  | A/|           |  Owned at         |Indir |                           |
                           | Date |Code|V|    Amount        | D |    Price  |  End of Month     |ect(I)|                           |
___________________________________________________________________________________________________________________________________|
<S>                        <C>    <C>  <C><C>               <C> <C>         <C>                 <C>    <C>
Common Stock               |2/12/9|C   | |10,877,505        |A  |           |11,081,830         |I     |By Sevin Rosen Fund IV L.P.|
                           |7     |    | |                  |   |           |                   |      | (1)                       |
- - -----------------------------------------------------------------------------------------------------------------------------------|
Common Stock               |2/12/9|C   | |714,285           |A  |           |714,285            |D     |                           |
                           |7     |    | |                  |   |           |                   |      |                           |
- - -----------------------------------------------------------------------------------------------------------------------------------|
___________________________________________________________________________________________________________________________________|
<CAPTION>
___________________________________________________________________________________________________________________________________
 Table II -- Derivative Securitites Acquired, Disposed of, or Beneficially Owned                                                   |
___________________________________________________________________________________________________________________________________|
1.Title of Derivative |2.Con-  |3.   |4.    |5.Number of De |6.Date Exer|7.Title and Amount  |8.Price|9.Number    |10.|11.Nature of|
  Security            |version |Transaction | rivative Secu |cisable and|  of Underlying     |of Deri|of Deriva   |Dir|Indirect    |
                      |or Exer |     |      | rities Acqui  |Expiration |  Securities        |vative |tive        |ect|Beneficial  |
                      |cise    |     |      | red(A) or Dis |Date(Month/|                    |Secu   |Securities  |(D)|Ownership   |
                      |Price of|     |      | posed of(D)   |Day/Year)  |                    |rity   |Benefi      |or |            |
                      |Deriva- |     |      |               |Date |Expir|                    |       |ficially    |Ind|            |
                      |tive    |     |      |           | A/|Exer-|ation|   Title and Number |       |Owned at    |ire|            |
                      |Secu-   |     |    | |           | D |cisa-|Date |   of Shares        |       |End of      |ct |            |
                      |rity    |Date |Code|V|  Amount   |   |ble  |     |                    |       |Month       |(I)|            |
___________________________________________________________________________________________________________________________________|
<S>                   <C>      <C>   <C>  <C><C>        <C> <C>   <C>   <C>          <C>     <C>     <C>          <C> <C>
Series AConvertible Pr|        |2/12/|C   | |1,148,789  |D  |(2)  |(2)  |Common Stock|5,743,9|       |-0-         |I  |By Sevin Ros|
eferred Stock         |        |97   |    | |           |   |     |     |            |45     |       |            |   |en Fund IV L|
                      |        |     |    | |           |   |     |     |            |       |       |            |   |.P. (1)     |
- - -----------------------------------------------------------------------------------------------------------------------------------|
Series B Convertible P|        |2/12/|C   | |740,998    |D  |(2)  |(2)  |Common Stock|3,704,9|       |-0-         |I  |By Sevin Ros|
referred Stock        |        |97   |    | |           |   |     |     |            |90     |       |            |   |en Fund IV L|
                      |        |     |    | |           |   |     |     |            |       |       |            |   |.P. (1)     |
- - -----------------------------------------------------------------------------------------------------------------------------------|
Series C Convertible P|        |2/12/|C   | |285,714    |D  |(2)  |(2)  |Common Stock|1,428,5|       |-0-         |I  |By Sevin Ros|
referred Stock        |        |97   |    | |           |   |     |     |            |70     |       |            |   |en Fund IV L|
                      |        |     |    | |           |   |     |     |            |       |       |            |   |.P. (1)     |
- - -----------------------------------------------------------------------------------------------------------------------------------|
Series C Convertible P|        |2/12/|C   | |142,857    |D  |(2)  |(2)  |Common Stock|714,285|       |-0-         |D  |            |
referred Stock        |        |97   |    | |           |   |     |     |            |       |       |            |   |            |
- - -----------------------------------------------------------------------------------------------------------------------------------|
                      |        |     |    | |           |   |     |     |            |       |       |            |   |            |
___________________________________________________________________________________________________________________________________|
</TABLE>
Explanation of Responses:
(1)   Sevin Rosen Fund V L.P. is an affiliate of Sevin Rosen Fund IV L.P. and 
may be deemed to beneficially own the 
shares held by such 
entity.
(2)  Upon the closing of the Issuer's initial public offering of its Common 
Stock, each issued and outstanding share 
of its convertible preferred stock automatically converted into five shares of 
Common Stock.
By:  SEVIN ROSEN FUND V 
L.P.
By:  SRB ASSOCIATES V L.P., its general 
partner
By:  /s/ John V. Jaggers                                              October 
7, 1997
        John V. Jaggers, General 
Partner
SIGNATURE OF REPORTING PERSON
See signature on last page
DATE
October 7, 1997



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