Re: Auto RP [7:134425]

From: khurram noor (smartcapricon82@gmail.com)
Date: Fri Feb 20 2009 - 04:36:26 ARST

Dear Fareed,

As far as i can understand R2 is a spoke, which you have made an RP and
mapping agent. the problem can occur if spoke to spoke reachability or split
horizon can cause problems. Anyways if the reachablility is there, try
tweaking the role of mapping agent. Since R1 is in the center of your
topology, why dont you go ahead and make it the mapping agent.

i dont think if you define static RP on each device, there is a requirement
of mapping agent.

On Fri, Feb 20, 2009 at 2:00 AM, Abu Fareed <ahamed_maideen@hotmail.com>wrote:

>
> Thanks Noor,
>
> I am using a Frame relay environment where I am using only pim sparse-mode
> My setup is as follows
>
> Switch1----r3---hdlc---r1---|------------r5---r6--sw2
> |
> |
> -------------r2----r4
> I have configured r2 as the RP/mapping agent. The connection between r1 to
> r2 and r5 is a frame relay pvc. R1 is configured for ip pim nbma mode.
> Now If I have AutoRP listener configured on all the devices, I cannot
> reach sw1 and sw2 from r4 or from any r1.
> But if I configure r2 has the static rp only for the groups 224.0.1.39 and
> 224.0.1.40 and r2 remains the auto-rp/mapping aganet for the rest of the
> other groups,
> I can reach sw1 and sw2.
>
> I want to understand how the static rp for 224.0.1.39/1.40 changes things
> (I know that .39 and .40 are the address of rp/map)
>
> Thanks
> Abufareed
>
> ==============================================
> Collaborative Learning Creates a Synergy of Knowledge !!
> http://www.networkplatform.com
>
>
>
>
> ------------------------------
> Date: Fri, 20 Feb 2009 01:09:14 +0500
> Subject: Re: Auto RP [7:134425]
> From: smartcapricon82@gmail.com
> To: ahamed_maideen@hotmail.com
>
>
> AutoRp listner is used when all of the interfaces are configured as
> sparse-mode. and there is a requirement to allow pim routers to join
> 224.1.0.39 and 224.1.0.40 multicast groups. it depends if ur framerelay is
> nbma try it along with ip pim mode nbma and see if it works.
> On Fri, Feb 20, 2009 at 12:57 AM, Abu Fareed <ahamed_maideen@hotmail.com>wrote:
>
> Hi Folks,
>
> Can any one help me out when should I use "ip pim autorp listener" and when
> should i use default rp for the groups 224.0.1.39 and 224.0.1.40 in a
> Frame-relay environment ?
>
> Thanks in Advance
> AbuFareed
>
>
> ==============================================
> Collaborative Learning Creates a Synergy of Knowledge !!
> http://www.networkplatform.com
>
>
>
> _________________________________________________________________
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> --
> Khurram Noor
> CCIP, CCNA
>
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-- 
Khurram Noor
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