The following was received October 30, 2001
From: "Morten J. Christensen" <mjc@vitesse.com>
Re: draft-ietf-magma-snoop

It appears that a number of patents have been filed which may
apply to this draft or parts thereof. None of these patents have
been filed by the authors of this draft or companies in which they are
or have been employed.

We, the authors, have not tried to evaluate whether
these patents are violated by implementing IGMP snooping
according to this document. The IETF/IESG have been notified about
the existence of the patents.

International patent: WO 96/34474, Oct. 31 1996, Title: "Broadcast
transmission in a data network"

US patent: Number 5,608,726, Mar. 4, 1997 (filed 1995) Title:
"Networking Bridge with Multicast forwarding table"

US patent: Number 5,898,686, Apr. 27, 1999 (filed 1996)
Title: "Networking Bridge with Multicast forwarding table"

Australian patent: Application No. 65440/98
Title: "System, Device, and Method for Managing Multicast Group
Memberships in a Multicast Network"