Re: Regarding multicast

Also One more question please....sorry for that..

when we use this command:-

ip pim send-rp-announce Loopback0 scope x group-list y interval zz

does that means that the router on which we have applied this wil send its
RP announcements from only the Loopback Interface.

Now lets say Loopback is configured with ip pim sparse-dense mode *AND*

Fa is configured with ip pim sparse-mode

So will the router send the RP announce messages from both the Interfaces or
just the Loopback.

If it will send from both then why???? because on Fa , we have not
configured sparse-dense mode, how will that Interface know that I have to
send the RP announcement???

thanks
raghav

On Mon, Jun 1, 2009 at 11:35 PM, Raghav Bhargava <raghavbhargava12_at_gmail.com
> wrote:

> Hi Experts,
>
> This is my topology:-
>
> R3 ,<-----FR------> R5
> | |
> | |
> FR FR
> | |
> | |
> R6 <----Fa ---> R2 R4
>
>
> I am using PIM SM on all the Interfaces. I enabled PIm SM-SM on R2 and R6
> on Loopback interfaces so that both of them become RP for the group
> 224.x.x.x.
> Now my query is on R5, when i do show ip mroute 224.0.1.39, I get this
> output:-
>
> r5#show ip mroute 224.0.1.39
> 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
>
> (*, 224.0.1.39), 00:16:59/stopped, RP 0.0.0.0, flags: DP
> Incoming interface: Null, RPF nbr 0.0.0.0
> Outgoing interface list: Null
>
> (2.2.2.2, 224.0.1.39), 00:00:57/00:02:02, flags: PT
> Incoming interface: Serial0/0.52, RPF nbr 10.1.25.2
> Outgoing interface list: Null
>
> But I am not getting the (S,G) Tree for the Loopback of R6. For R2 I can
> see 2.2.2.2 but not for R6 which should be 6.6.6.6. I don't know why R5 is
> not getting that. This is my first question??
>
> My second question is will R3 also have 2 entries :- one from R2 i.e---
> 2.2.2.2 and one from R6 i.e--- 6.6.6.6. If yes then I don see anyone of them
> on R3. When I do show ip mroute 224.0.1.39 on R3 it says group 224.0.1.39
> not found.???
>
> Please can anyone advise....
>
>
> --
> Warm Regards
> Raghav
>

-- 
Warm Regards
Raghav
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