Wednesday, October 29, 2008

Multicast S2N done!

It was very, very basic! And kind of an disappointment... plus the setup portions weren't "complete" in the sense that sometimes they wouldn't tell you, you need to configure a loopback as an interface or provide verification commands and the output.

2 things that I did learn, MSDP and Stub Multicast routing.

MSDP - Multicast Source Discovery Protocol - Peer 2 RPs from different multicast domains in order to propagate mutlicast traffic to clients on/through a different domain. The peering take place between 2 RPs, so RP configs need to be applied.

ip msdp peer A.B.C.D connect-source S1/0.2


Stub Routing - you can filter PIM neighbor relations through ip pim neighbor-filter 1. The acl specifies the hosts of the other PIM routers. On the stub router, under the interface that faces the multicast host clients, configure ip igmp helper-address a.b.c.d . It's basically the same as an ip helper address for DHCP.


Things that weren't covered, IP PIM NBMA mode, Auto-rp Listner for Sparse Modes, group-lists, rp-lists. etc.


... up next, Access-lists.

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