MBONED minutes below The group decided that the admin-scope draft should go forward as an MBONED document. Mark Handely introduced the Multicast Scope Zone Announcement protocol, which is designed to solve the following three problems: Scope Discover, Scope Leaks (through misconfiguration), and Nonconvex Scopes (again, misconfiguration). Kurt Windish (UO) and Rusty Eddy provided PIM implementation updates. Slides: www.antc.uoregon.edu/GATED/IETF-DC97 Meyer talked about a new Internet multicast architectures. Will write a document for MBONED describing this. Slides: www.antc.uoregon.edu/IETF/DC97/Transition Dino Farinacci talked about a DNS Based RP Placement scheme. The problem is that the current architecture (described above by Meyer) requires co-location of RPs on a common interconnect. Bill Fenner talked about multicast route stability. Results on http://ganef.cs.ucla.edu/~masseyd/Route Ross Finlayson talked about UDP Multicast Tunneling. This is an approact to solving the problem that many PCs can't do multicast or tunneling. The idea is to provide a minmal changes solution that can be used for tunneling on PCs. This solution uses udp-in-udp tunneling (user pc at one end, server at the other). Slides: www.lvn.com/ietf/1997.12/mboned/finlayson*.ps Kevin Almeroth talked about the Interactive Mmedia Jukebox (IMJ), and about MBONE "viewership" studies. He reported on the alarming trend that fewer people are using the MBONE than in the past. Slides: www.cs.ucsb.edu/~almeroth/ Youngguang Zhang talked about a Hughes pilot for sending MBONE over Satellite. The project was used during MBONE traffic during this IETF. Uses the directPC system to carry IP Mulitcast. He mentioned three major issues: Unidirectional Link Routing (ULR) Integration into existing MBONE Cost Models