MSDP Operation
MSDP peers (inter or intra domain)
(TCP port 639 w/ higher IP addr LISTENS)
“FLOOD & join”
SA (source active) packets periodically sent to MSDP peers
indicating:
source address of active streams
group address of active streams
IP address of RP originating the SA
only originate SA’s for your sources w/in your domain
“flood & JOIN”
interested parties can send PIM JOIN’s towards source
(creates inter-domain source trees)