From: NET HE (he_net@hotmail.com)
Date: Thu Jan 15 2009 - 01:56:54 ARST
Hobbs,
Based on the information of "show ip mroute", your bidirectional PIM is not
working. If bidirectional PIM is working, there is supposed to have a B beside
flags:, and you will see bidir-upstream interface, etc. Or you can use show ip
mroute bidirectional to verify.
Have you configured R3 (RP) as bidir RP? Best Regards, Net (Xin) He > Date:
Wed, 14 Jan 2009 15:50:33 -0700> From: deadheadblues@gmail.com> To:
ccielab@groupstudy.com> Subject: Bidirectional PIM scenario> > hello,> > I am
trying to learn more about bidirectional PIM but no matter what type of> lab
topology I come up with, multicast works anyway. Anyone know a good> topology
I can configure where multicast would fail unless you enable bidir> pim?> >
The topology I use right now has this (copied from doccd config guide)> > R1
(Receiver) ---- R2 ---- R3 (RP) ----- R4 ----- R5 ----- R6 (Sender)> |> |>
R7----- R8 (Receiver)> > If you cant see the topology correctly R4 is where
the split to R7 happens.> R1 and R8 are receivers> R3 is the RP> R6 is the
sender.> All interfaces are PIM-SM, Autorp listener everywhere> > Even with
this setup, R4 will accept (S,G) incoming from R5, forward it to> R3, then
accept (*,G) on that same interface from R3 to forward it out> R7/R8. I always
thought this could not happen. I have disabled the> SPT-switchover (ip pim
spt-threshold infinity).> > R4#sho ip mroute 225.0.0.1 | begin \(\*> (*,
225.0.0.1), 00:12:10/00:03:08, RP 3.3.3.3, flags: S> Incoming interface:
Serial1/0, RPF nbr 192.168.34.3> Outgoing interface list:> Serial1/1,
Forward/Sparse, 00:12:10/00:03:08> > (192.168.56.6, 225.0.0.1),
00:00:22/00:03:21, flags: T> Incoming interface: Serial1/2, RPF nbr
192.168.45.5> Outgoing interface list:> Serial1/0, Forward/Sparse,
00:00:22/00:03:09, A> Serial1/1, Forward/Sparse, 00:00:22/00:03:08> > On R4:>
> s1/0 = R3> s1/1 = R7> s1/2 = R5> > thanks,> > > Blogs and organic groups at
http://www.ccie.net> >
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