From: tom cheung (tkc9789@xxxxxxxxxxx)
Date: Fri Nov 09 2001 - 10:33:53 GMT-3
As far as I understand it, after registering with the RP, Cisco router will
default to immediately switch to the Shortest Path Tree. Therefore, R2
should short cut w/o having to go through the RP. Beau Williamson's book has
a detailed explanation of this.
Tom
>From: Shane Miles <smiles@ftdata.com>
>Reply-To: Shane Miles <smiles@ftdata.com>
>To: "'ccielab@groupstudy.com'" <ccielab@groupstudy.com>
>Subject: PIM-SM traffic flow
>Date: Thu, 8 Nov 2001 23:08:27 -0500
>
> Lets says we have this weird situation below. All interfaces are
>configured for PIM-SM and R3 is the RP. When the PC joins the multicast
>group does all traffic still go from the source to the RP(R3) then back to
>R2 and out to the PC or can R2 short-cut it? Thanks.
>
>Source---<R1>-----<R2>-----<R3>(RP)
> |
> PC
>
>--
>Shane P. Miles
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