From: Rich Collins (nilsi2002@gmail.com)
Date: Fri Oct 10 2008 - 17:05:01 ART
It's not supported. Here is an old thread:
http://groupstudy.com/archives/ccielab/200707/msg01599.html
-Rich
On Thu, Oct 9, 2008 at 5:53 AM, vatry 2T <vatry2t@googlemail.com> wrote:
> Hi experts,
>
> I'm testing a multicast scenario like this:
>
>
> -------
> R3 ------R5
> Router only to ping multicast group ------ R2 ----
> -------
> R4
>
> R2 has a frame-relay multipoint subinterface connecting to R3 and R4. All
> the routers are running PIM-SM with R2's Lo0 as the RP. R2's multipoint
> subif has "pim nbma-mode" configured.
>
> The routers' loopback interfaces have joined the following groups:
>
> R2's Lo0 - 230.2.2.2.
> R3's Lo0 - 230.3.3.3
> R4's Lo0 - 230.4.4.4
> R5's Lo0 - 230.5.5.5
>
> Bidirectional PIM is enabled on all the routes with "ip pim bidir-enable"
>
> The left most router (used only for ping testing) can ping all the groups.
> R2 can ping R3, R4 and R5 groups
> R3 can ping R5 group
> R5 can ping R3 group
>
> BUT
>
> R3 can't ping R4 group and viceversa.
>
> With a "debug ip mpackets", when testing R3-R4 pings there is no output on
> either R2, R3 or R4, but you can see packets with all the other ping tests
> that work.
>
> I'm wondering if traffic going up the tree can't go through the RP because
> R5 to R3 is going up the tree and it's working.
>
> Appreciate any comments or explanations on bidirectional PIM.
>
> Many thanks!!
>
>
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>
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