Re: IPX V1-lab10 (MSDP)

Can R9 ping any of R5s interfaces, just a regular ping?

On Jun 29, 2010, at 4:38 PM, IOS GIMP wrote:

> hello
>
> I hope someone can point me in the right direction.
> I have done IP-expert volume 1 lab 10 on multicast.
>
> But there one thing I cant get working.
>
> The topology
>
> R1
> |
> R2-------R6------R9
> |
> R5
> (225.0.0.55)
>
> R1, R2, R5 is in AS1 and R6 and R9 is in AS2
> AS1 run auto-rp and AS2 runs BSR with R2 and R6 the respective RP/MA and
> RP/BSR.
> R2 and R6 are MSDP peers and Multicast-BGP with connected interfaces
> redistribute under ipv4 multicast.
>
> Every router (including R6) can ping the IGMP join interface on R5 fa0/0
> (225.0.0.55) except R9.
> There is no RPF failures, as per the debugs. All unicast routing seems to be
> inplace.
> The traffic from R9 is getting to R6 but not to R2 as per the 'debug ip
> mpacket'
>
> My question is around the multicast table on R6:
>
> Rack6R6#sh ip mroute 225.0.0.55
> IP Multicast Routing Table
> Flags: D - Dense, S - Sparse, B - Bidir Group, s - SSM Group, C - Connected,
> L - Local, P - Pruned, R - RP-bit set, F - Register flag,
> T - SPT-bit set, J - Join SPT, M - MSDP created entry,
> X - Proxy Join Timer Running, A - Candidate for MSDP Advertisement,
> U - URD, I - Received Source Specific Host Report,
> Z - Multicast Tunnel, z - MDT-data group sender,
> Y - Joined MDT-data group, y - Sending to MDT-data group
> Outgoing interface flags: H - Hardware switched, A - Assert winner
> Timers: Uptime/Expires
> Interface state: Interface, Next-Hop or VCD, State/Mode
>
> (*, 225.0.0.55), 00:01:45/stopped, RP 150.50.69.1, flags: SP
> Incoming interface: Null, RPF nbr 0.0.0.0
> Outgoing interface list: Null
>
> (200.0.0.6, 225.0.0.55), 00:00:12/00:02:53, flags: PTA
> Incoming interface: Loopback0, RPF nbr 0.0.0.0
> Outgoing interface list: Null
>
> (200.0.0.9, 225.0.0.55), 00:01:45/00:01:15, flags: PT
> Incoming interface: Multilink1, RPF nbr 150.50.69.2
> Outgoing interface list: Null
>
>
> Notice that the (s,g) entry for R9 is missing the 'A - Candidate for MSDP
> Advertisement'
> But for R6 it is not.
>
> I cant seem to figure why that is or what could prevent R6 from advertising
> R9 as a source to R2.
>
> Any help would be appreciated.
>
> Regards
>
>
> Blogs and organic groups at http://www.ccie.net
>
> _______________________________________________________________________
> Subscription information may be found at:
> http://www.groupstudy.com/list/CCIELab.html

Blogs and organic groups at http://www.ccie.net
Received on Tue Jun 29 2010 - 16:58:27 ART