Received March 2, 2001 From: Stuart Wilkinson This is to advise the IETF that Nortel Networks has patents and/or patent applications that may relate to work taking place in the Content Distribution Interworking Working Group, particularly in relation to any of the following drafts: draft-day-cdnp-model-05.txt draft-cain-cdnp-known-request-routing-01.txt draft-ietf-cain-request-routing-req-0x.txt Where there is a necessary dependence upon such patents and patent applications in implementing an IETF adopted standard resulting from the work of the Content Distribution Interworking Working Group, Nortel Networks hereby agrees to license on fair, reasonable, and non-discriminatory terms to all parties, any patent claims it owns covering such technology, solely to the extent such technology is essential to comply with such standard. Any such license to a party shall start on the date that Nortel Networks and the party enter into an agreement related thereto and shall be granted on the condition that any such party grants to Nortel Networks and its corporate affiliates a reciprocal license under such party's patents for which there is also a necessary dependence. Any questions related to this statement may be addressed to: Stuart Wilkinson Portfolio & Solutions Law Nortel Networks e-mail: stuartw@nortelnetworks.com