7
CONFIDENTIAL
26-Jan-04
© 2002 Procket Networks, Inc. All rights reserved.
IP Multicast building blocks
•The SENDERS send
•Multicast Addressing - rfc1700
•class D (224.0.0.0 - 239.255.255.255)
•The RECEIVERS inform the routers what they want to receive
•Internet Group Management Protocol (IGMP) - rfc2236 -> version 2
•The routers make sure the STREAMS make it to the correct receiving nets.
•Multicast Routing Protocols (PIM-SM/SSM)
•RPF  (reverse path forwarding) – against source address