Newsgroups: comp.protocols.tcp-ip Path: utzoo!utgpu!watserv1!watmath!att!news.cs.indiana.edu!julius.cs.uiuc.edu!rpi!batcomputer!swb From: swb@chumley.tn.cornell.edu (Scott Brim) Subject: Re: IP Multicast Support In-Reply-To: rjc@comlab3.gatech.edu's message of 29 Jan 91 16:27:42 GMT Message-ID: Sender: news@batcomputer.tn.cornell.edu Nntp-Posting-Host: chumley.tn.cornell.edu Organization: Cornell Theory Center References: <759@mephisto.edu> Date: 30 Jan 91 09:46:32 Steve Deering is still working on multicasting. John Moy and the IETF Multicast OSPF Working Group have pretty much finished a design for extending OSPF to route multicast packets. I have two designs (similar, but trade-offs) for BGP which I'm in the middle of introducing into the BGP Working Group for inter-AS routing of multicast packets. It's on the list for the Inter-Domain Policy Routing folks but I'm pretty sure no one there has done any real design work yet. I don't know of any actual *implementation* work on any of this yet -- for OSPF and BGP we wanted to make sure it all fit together before we started implementing either. It is our (Cornell's) intention to implement forwarding multicasts in both OSPF and BGP on the gatedaemon base, Real Soon Now. There are a number of people out there working on transport protocols. The most recent I have heard about is Keith Marzullo (here at Cornell). Scott In article <759@mephisto.edu> rjc@comlab3.gatech.edu (Russell J. Clark) writes: Can anyone give me some information on the status of IP Multicast Support in the TCP/IP community. I've read the various RFC's up through August 1989 by Steve Deering. I've also spent some time implementing some lower level multicast support on a Sparcstation and Sun OS 4.1. I'm interested in hearing about implementations, both commercial and educational. I'm particularly interested in addressing the issues with routing of multicast packets.