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  <TITLE>Prepared by R.R. Donnelley Financial -- Form 8-K</TITLE>
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   <DIV><FONT SIZE="1">&nbsp;</FONT></DIV> <DIV ALIGN="center"><FONT FACE="Times New Roman" SIZE="2">SECURITIES AND EXCHANGE COMMISSION </FONT></DIV> <DIV ALIGN="center"><FONT FACE="Times New Roman"
  SIZE="2">Washington, DC 20549 </FONT></DIV> <DIV><FONT SIZE="1">&nbsp;</FONT></DIV> <HR NOSHADE WIDTH="21%" COLOR="#000000"><DIV><FONT SIZE="1">&nbsp;</FONT></DIV> <DIV><FONT SIZE="1">&nbsp;</FONT></DIV> <DIV ALIGN="center"><FONT
  FACE="Times New Roman" SIZE="2"><B>FORM 8-K </B></FONT></DIV> <DIV><FONT SIZE="1">&nbsp;</FONT></DIV> <DIV ALIGN="center"><FONT FACE="Times New Roman" SIZE="2"><B>CURRENT REPORT </B> </FONT></DIV> <DIV ALIGN="center"><FONT FACE="Times New Roman"
  SIZE="2">Pursuant to Section 13 or 15(d) of </FONT></DIV> <DIV ALIGN="center"><FONT FACE="Times New Roman" SIZE="2">the Securities Exchange Act of 1934 </FONT></DIV> <DIV><FONT SIZE="1">&nbsp;</FONT></DIV> <DIV ALIGN="center"><FONT
  FACE="Times New Roman" SIZE="2">Date of Report (Date of Earliest Event Reported): <B>February 17, 2002</B> </FONT></DIV> <DIV><FONT SIZE="1">&nbsp;</FONT></DIV> <HR NOSHADE WIDTH="21%" COLOR="#000000"><DIV><FONT SIZE="1">&nbsp;</FONT></DIV> <DIV
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  <TD VALIGN="bottom" WIDTH="100%" ALIGN="center"> <DIV ALIGN="center"><FONT FACE="Times New Roman" SIZE="1"><B>ONI Systems Corp.</B></FONT></DIV> </TD> </TR>
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  <TD VALIGN="top" ALIGN="center" WIDTH="100%"> <DIV STYLE="margin-left:13px; text-indent:-13px" ALIGN="center"><FONT FACE="Times New Roman" SIZE="2">(Exact Name of Registrant as Specified in Its Charter)</FONT></DIV> </TD> </TR>
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  <TD VALIGN="bottom" WIDTH="100%" ALIGN="center"> <DIV ALIGN="center"><FONT FACE="Times New Roman" SIZE="1"><B>Delaware</B></FONT></DIV> </TD> </TR>
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  <TD VALIGN="top" ALIGN="center" WIDTH="100%"> <DIV STYLE="margin-left:13px; text-indent:-13px" ALIGN="center"><FONT FACE="Times New Roman" SIZE="2">(State or Other Jurisdiction of Incorporation)</FONT></DIV> </TD> </TR>
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  <TD VALIGN="bottom" WIDTH="48%" ALIGN="center"> <DIV ALIGN="center"><FONT FACE="Times New Roman" SIZE="1"><B>0&#150;30633</B></FONT></DIV> </TD>
  <TD VALIGN="bottom" WIDTH="3%"><FONT FACE="Times New Roman" SIZE="1">&nbsp;</FONT></TD>
  <TD VALIGN="bottom" WIDTH="48%" ALIGN="center"> <DIV ALIGN="center"><FONT FACE="Times New Roman" SIZE="1"><B>77046&#150;9657</B></FONT></DIV> </TD> </TR>
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  <TD VALIGN="top" ALIGN="center" WIDTH="50%"> <DIV STYLE="margin-left:13px; text-indent:-13px" ALIGN="center"><FONT FACE="Times New Roman" SIZE="2">(Commission File Number)</FONT></DIV> </TD>
  <TD VALIGN="bottom" WIDTH="3%"><FONT FACE="Times New Roman" SIZE="1">&nbsp;</FONT></TD>
  <TD VALIGN="bottom" ALIGN="center" WIDTH="50%"> <DIV ALIGN="center"><FONT FACE="Times New Roman" SIZE="2">(IRS Employer Identification No.)</FONT></DIV> </TD> </TR>
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  <TD VALIGN="bottom" WIDTH="48%" ALIGN="center"> <DIV ALIGN="center"><FONT FACE="Times New Roman" SIZE="1"><B>5965 Silver Creek Valley Road, San Jose, California</B></FONT></DIV> </TD>
  <TD VALIGN="bottom" WIDTH="3%"><FONT FACE="Times New Roman" SIZE="1">&nbsp;</FONT></TD>
  <TD VALIGN="bottom" WIDTH="48%" ALIGN="center"> <DIV ALIGN="center"><FONT FACE="Times New Roman" SIZE="1"><B>95138</B></FONT></DIV> </TD> </TR>
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  <TD VALIGN="top" ALIGN="center" WIDTH="50%"> <DIV STYLE="margin-left:13px; text-indent:-13px" ALIGN="center"><FONT FACE="Times New Roman" SIZE="2">(Address of Principal Executive Offices)</FONT></DIV> </TD>
  <TD VALIGN="bottom" WIDTH="3%"><FONT FACE="Times New Roman" SIZE="1">&nbsp;</FONT></TD>
  <TD VALIGN="bottom" ALIGN="center" WIDTH="50%"> <DIV ALIGN="center"><FONT FACE="Times New Roman" SIZE="2">(Zip Code)</FONT></DIV> </TD> </TR>
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  <TD VALIGN="bottom" WIDTH="100%" ALIGN="center"> <DIV ALIGN="center"><FONT FACE="Times New Roman" SIZE="1"><B>(408) 965-2600</B></FONT></DIV> </TD> </TR>
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  <TD VALIGN="top" ALIGN="center" WIDTH="100%"> <DIV STYLE="margin-left:13px; text-indent:-13px" ALIGN="center"><FONT FACE="Times New Roman" SIZE="2">(Registrant&#146;s Telephone Number, Including Area Code)</FONT></DIV> </TD> </TR>
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  <TD VALIGN="bottom" WIDTH="100%" ALIGN="center"> <DIV ALIGN="center"><FONT FACE="Times New Roman" SIZE="1"><B>Not Applicable</B></FONT></DIV> <HR NOSHADE WIDTH="21%" COLOR="#000000"></TD> </TR>
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  <TD VALIGN="top" ALIGN="center" WIDTH="100%"> <DIV STYLE="margin-left:13px; text-indent:-13px" ALIGN="center"><FONT FACE="Times New Roman" SIZE="2">(Former Name or Former Address, if Changed Since Last Report)</FONT></DIV> </TD> </TR>
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   <DIV ALIGN="center"><FONT FACE="Times New Roman" SIZE="2">1 </FONT></DIV>
  
  
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   <DIV><FONT SIZE="1">&nbsp;</FONT></DIV> <DIV><FONT FACE="Times New Roman" SIZE="2"><B>Item 5:&nbsp;&nbsp;&nbsp;&nbsp;Other Events </B></FONT></DIV> <DIV><FONT SIZE="1">&nbsp;</FONT></DIV> <DIV
  STYLE="text-indent:27px"><FONT FACE="Times New Roman" SIZE="2">The Agreement and Plan of Merger dated as of February 17, 2002 between CIENA Corporation and ONI Systems Corp. is attached as an exhibit to this report on Form 8&#150;K. </FONT></DIV>
  <DIV><FONT SIZE="1">&nbsp;</FONT></DIV> <DIV><FONT FACE="Times New Roman" SIZE="2"><B>Item 7:&nbsp;&nbsp;&nbsp;&nbsp;Exhibits </B></FONT></DIV> <DIV><FONT SIZE="1">&nbsp;</FONT></DIV> <DIV ALIGN="center">
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  <TD VALIGN="bottom" WIDTH="3%"><FONT FACE="Times New Roman" SIZE="1">&nbsp;&nbsp;</FONT></TD>
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  <TD HEIGHT="5"> </TD> </TR>
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  <TD VALIGN="top" ALIGN="right" WIDTH="6%"> <DIV ALIGN="right"><FONT FACE="Times New Roman" SIZE="2">2.01</FONT></DIV> </TD>
  <TD VALIGN="bottom" WIDTH="3%"><FONT FACE="Times New Roman" SIZE="1">&nbsp;&nbsp;</FONT></TD>
  <TD VALIGN="bottom" WIDTH="93%"> <DIV><FONT FACE="Times New Roman" SIZE="2">Agreement and Plan of Merger dated as of February 17, 2002 between CIENA Corporation and ONI Systems Corp.</FONT></DIV> </TD> </TR>
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   <DIV ALIGN="center"><FONT FACE="Times New Roman" SIZE="2">2 </FONT></DIV>
  
  
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   <DIV><FONT SIZE="1">&nbsp;</FONT></DIV> <DIV ALIGN="center"><FONT FACE="Times New Roman" SIZE="2"><B>SIGNATURE </B></FONT></DIV> <DIV><FONT SIZE="1">&nbsp;</FONT></DIV> <DIV
  STYLE="text-indent:27px"><FONT FACE="Times New Roman" SIZE="2">Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned hereunto duly authorized.
  </FONT></DIV> <DIV><FONT SIZE="1">&nbsp;</FONT></DIV> <DIV STYLE="text-indent:27px"><FONT FACE="Times New Roman" SIZE="2">Date: February 25, 2002 </FONT></DIV> <DIV><FONT SIZE="1">&nbsp;</FONT></DIV> <DIV ALIGN="right">
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  <TD VALIGN="top" COLSPAN="3" WIDTH="43%"> <DIV><FONT FACE="Times New Roman" SIZE="2">ONI SYSTEMS CORP.</FONT></DIV> </TD> </TR>
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  <TD HEIGHT="16"> </TD> </TR>
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  <TD VALIGN="top" WIDTH="3%"> <DIV STYLE="margin-left:13px; text-indent:-13px"><FONT FACE="Times New Roman" SIZE="2">By:</FONT></DIV> </TD>
  <TD VALIGN="bottom" WIDTH="3%"><FONT FACE="Times New Roman" SIZE="1">&nbsp;</FONT></TD>
  <TD VALIGN="top" ALIGN="center" WIDTH="43%"> <DIV ALIGN="center"><FONT FACE="Times New Roman" SIZE="2">/s/ William R. Cumpston&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</FONT></DIV> <HR NOSHADE COLOR="#000000" ALIGN="left"></TD> </TR>
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  <TD> <FONT SIZE="1">&nbsp;</FONT></TD>
  <TD VALIGN="bottom" WIDTH="3%"><FONT FACE="Times New Roman" SIZE="1">&nbsp;</FONT></TD>
  <TD VALIGN="bottom" ALIGN="center" WIDTH="43%"> <DIV ALIGN="center"><FONT FACE="Times New Roman" SIZE="1"><B>William R. Cumpston</B></FONT></DIV> <DIV ALIGN="center"><FONT FACE="Times New Roman" SIZE="1"><B>Chief Operating Officer</B></FONT></DIV>
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   <DIV ALIGN="center"><FONT FACE="Times New Roman" SIZE="2">3 </FONT></DIV>
  
  
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   <DIV><FONT SIZE="1">&nbsp;</FONT></DIV> <DIV ALIGN="center"><FONT FACE="Times New Roman" SIZE="2"><B>EXHIBIT INDEX </B></FONT></DIV> <DIV><FONT SIZE="1">&nbsp;</FONT></DIV> <DIV ALIGN="center">
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  <TD VALIGN="bottom" ALIGN="center"> <DIV ALIGN="center"><FONT FACE="Times New Roman" SIZE="1"><B>Exhibit</B></FONT></DIV> <HR SIZE="2" NOSHADE WIDTH="42" COLOR="#000000"></TD>
  <TD VALIGN="bottom" WIDTH="3%"><FONT FACE="Times New Roman" SIZE="1">&nbsp;&nbsp;</FONT></TD>
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  <TD HEIGHT="5"> </TD> </TR>
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  <TD VALIGN="top" ALIGN="right" WIDTH="7%"> <DIV ALIGN="right"><FONT FACE="Times New Roman" SIZE="2">2.01</FONT></DIV> </TD>
  <TD VALIGN="bottom" WIDTH="3%"><FONT FACE="Times New Roman" SIZE="1">&nbsp;&nbsp;</FONT></TD>
  <TD VALIGN="bottom" WIDTH="92%"> <DIV><FONT FACE="Times New Roman" SIZE="2">Agreement and Plan of Merger dated as of February 17, 2002 between CIENA Corporation and ONI Systems Corp.</FONT></DIV> </TD> </TR>
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   <DIV ALIGN="center"><FONT FACE="Times New Roman" SIZE="2">4 </FONT></DIV>
  
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metadata_documents: [{"type": "8-K", "sequence": "1", "filename": "d8k.htm", "description": "FORM 8-K", "secsgml_size_bytes": 10298}]
metadata_filer: {"company-data": {"conformed-name": "ONI SYSTEMS CORP", "cik": "0001107067", "assigned-sic": "3661", "irs-number": "770469657"}, "filing-values": {"form-type": "8-K", "act": "34", "file-number": "000-30633", "film-number": "02557491"}, "business-address": {"street1": "166 B BAYPOINTE PARKWAY", "city": "SAN JOSE", "state": "CA", "zip": "95134", "phone": "4089652600"}, "mail-address": {"street1": "ONI SYSTEMS CORP", "street2": "166 B BAYPOINTE PARKWAY", "city": "SAN JOSE", "state": "CA", "zip": "95134"}}
text: Prepared by R.R. Donnelley Financial -- Form 8-K
  SECURITIES AND EXCHANGE COMMISSION
  Washington, DC 20549
  FORM 8-K
  CURRENT REPORT
  Pursuant to Section 13 or 15(d) of
  the Securities Exchange Act of 1934
  Date of Report (Date of Earliest Event Reported):
  February 17, 2002
  ONI Systems Corp.
  (Exact Name of Registrant as Specified in Its Charter)
  Delaware
  (State or Other Jurisdiction of Incorporation)
  0–30633
  77046–9657
  (Commission File Number)
  (IRS Employer Identification No.)
  5965 Silver Creek Valley Road, San Jose, California
  95138
  (Address of Principal Executive Offices)
  (Zip Code)
  (408) 965-2600
  (Registrant's Telephone Number, Including Area Code)
  Not Applicable
  (Former Name or Former Address, if Changed Since Last Report)
  1
  Item 5:    Other Events
  The Agreement and Plan of Merger dated as of February 17, 2002 between CIENA Corporation and ONI Systems Corp. is attached as an exhibit to this report on Form 8–K.
  Item 7:    Exhibits
  2.01
  Agreement and Plan of Merger dated as of February 17, 2002 between CIENA Corporation and ONI Systems Corp.
  2
  SIGNATURE
  Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned hereunto duly authorized.
  Date: February 25, 2002
  ONI SYSTEMS CORP.
  By:
  /s/ William R. Cumpston
  William R. Cumpston
  Chief Operating Officer
  3
  EXHIBIT INDEX
  Exhibit
  2.01
  Agreement and Plan of Merger dated as of February 17, 2002 between CIENA Corporation and ONI Systems Corp.
  4