From: Gustavo Novais (gustavo.novais@novabase.pt)
Date: Mon Jan 23 2006 - 15:03:00 GMT-3
Hi guys,
I have one doubt concerning PIM sparse mode and source registering
process.
Imagine that we have two routers (7600) in order to provide redundancy
in all the segments that they are connected.
We have a multicast source on vlan 20 and a third router acting as RP on
vlan 899. The DR router for vlan 20 will be responsible for generating
the register messages towards the RP while the RP itself does not join a
SPT to the source.
What will be the IP address on the Register messages sent by the DR of
vlan 20? Will it be the nearest IP to the RP (i.e. vlan 899 IP) or the
IP of the interface nearest to the source (to which the router is
actually the DR)?
I have no lab to try this out at the moment...
Any thoughts?
TIA
Gustavo Novais
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