Date: 10 June 2005 From: Michelle Lee Title: Nortel Networks Updated Patent Statement pertaining to draft-chisholm-disman-active-alarm about IPR claimed in RFC 3877 Dear Sir, Further to Nortel Networks Statement pertaining to draft-chisholm-disman-active-alarm, Nortel Networks Limited has an issued patent that is believed may pertain to at least a portion of this IETF RFC 3877: Title: Alarm Management Information Base (MIB) Tag: RFC 3877 > Nortel Networks U.S. Patent No.6,697,970, entitled "generic fault management method and system, may contain claims that are believed may be necessary for practicing the resulting IETF Standard. In this regard, Nortel Networks will make available licenses on fair, reasonable, reciprocal, and non-discriminatory terms, including royalties and/or other payments, to the extent of such necessary claims it owns for the purposes of complying with such resulting IETF Standard. Licensing requests may be addressed to: Richard Weiss Nortel Networks 2221 Lakeside Boulevard, M/S 991/14/B20 Richardson, Texas 75082 USA weissr@nortelnetworks.com My contact information is set out below. Kind Regards, Michelle Lee Counsel, IP Law Nortel Networks Limited 8200 Dixie Road, Ste 100 GMS 036/NO/151 Brampton, Ontario Canada L6T 5P6 Tel: 905-863-1148 (ESN 333) Fax: 905-863-8431 (ESN 333) Email: mleelaw@nortel.com