21
CONFIDENTIAL
26-Jan-04
© 2002 Procket Networks, Inc. All rights reserved.
Multicast Addressing
•SSM - draft-ietf-ssm-arch-*.txt
•232/8 – IANA assigned
•One-to-many ONLY (no shared trees)
•Guaranties ONE source on any delivery tree
•Content security (no ‘Captain Midnight’)
•Reduced protocol dependance – more later..
•Solves address allocation issues for interdomain one-to many
•~tree address is 64 bits – S,G
•Host must learn of source address out-of-band (web page)
•Requires host-to-router source AND group request
•IGMPv3 include-source list
•Hard-coded behavior in 232/8 in most router implementations
•draft-ietf-mboned-ssm232-*.txt
•Configurable to expand range