The following was received on March 22: From: "Weiss, Walter" This is to inform you that I am aware that Lucent Technologies has patent(s) US4769810 and US4769811 which may be applicable to proposed standards being considered by the Differentiated Services WG. (Since no search has been conducted, there may be others.) This declaration is being made pursuant to the provisions of IETF IPR Policy, Sections 10.3.1 and 10.3.2 . Lucent Technologies Inc. will offer patent licenses for submissions made by it which are adopted as a standard by your organization as follows: If part(s) of a submission by Lucent is included in a standard and Lucent has patents and/or pending applications that are essential to implementation of the included part(s) in said standard, Lucent is prepared to grant - on the basis of reciprocity (grantback) - a license on such included part(s) on reasonable, non-discriminatory terms and conditions. Any party wishing to request a license should write to: Lucent Technologies Intellectual Property Business Standards Patent Licensing 150 Allen Road, Suite 2000 Liberty Corner, NJ 07938-1995