From: Antonio Soares (amsoares@netcabo.pt)
Date: Tue Jun 26 2007 - 21:28:03 ART
I read this:
"Because some sources might choose one physical RP and some receivers a
different physical RP, the rendezvous process for PIM-SM cannot operate as
designed".
-----Original Message-----
From: nobody@groupstudy.com [mailto:nobody@groupstudy.com] On Behalf Of
johngibson1541@yahoo.com
Sent: terga-feira, 26 de Junho de 2007 21:46
To: ccielab@groupstudy.com
Subject: if we just want to have a backup RP, is MSDP needed ?
I know MSDP application AncastRP can be used to backup RP.
I have experimented using 2 loopback interfaces in 2 routers to backup each
other as the RP address using 1 single IP address.
I don't use any MSDP , I have no problem switching over from
1 RP to another.
I know univrecd says the AncastRP application has no effect on those
receiver-source pairs that are actively receiving/sending data because they
are using shortest trees and RP is irrelevant.
So, in my experiment, I stop the receiver as primary RP fails in purpose
just to see receiving leaf router triggering (*,G) toward RP from scratch.
It works fine.
univercd says MSDP is good for monitoring continuously active source.
My source is actively sending data throughout entire experiment too.
I don't understand why we need MSDP for this purpose.
I know there must be some subtle difference MSDP brings I just don't
understand.
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