Re: MA on spoke router !! Rp on another spoke !! sender/receier

From: imran ali <immrccie_at_gmail.com>
Date: Wed, 8 Dec 2010 17:18:15 +0300

Thanks Anthony ,
on that note i will kick this topic mcast on fr out of my "to study " list.

On Wed, Dec 8, 2010 at 4:47 PM, Anthony Sequeira <asequeira_at_ine.com> wrote:

> Yeah - the issue is not with GNS3. You will see issues with actual
> hardware as well. The Mapping Agent needs to be on the Hub device for
> consistent functionality here - even with pim nbma-mode and the static RP
> assignment of the Auto-RP groups.
>
>
>
> *From:* imran ali [mailto:immrccie_at_gmail.com]
> *Sent:* Wednesday, December 08, 2010 7:43 AM
> *To:* Anthony Sequeira
> *Cc:* Cisco certification
> *Subject:* Re: MA on spoke router !! Rp on another spoke !! sender/receier
> on another spoke ...
>
>
>
> thanks Anthony,
>
>
>
> ip pim nbma mode command should technically inject other spokes in OIL list
> .
>
>
>
> i have seen brain tricking a solution as follows
>
>
>
> on spoke / hub configure static rp with access list that permits 224.0.1.39
> and 224.0.1.40
>
> so that hub can treat these two groups as sparse . so hub should forward
> traffic out to every spoke
>
> as present in OIL
>
>
>
> theoretically logical when tested on gns3 , no success .
>
>
>
> Regards
>
> On Wed, Dec 8, 2010 at 1:14 PM, Anthony Sequeira <asequeira_at_ine.com>
> wrote:
>
> I believe that tunneling would have to be used in a situation like this.
>
> The Auto-RP mapping agent on a spoke device in a Frame hub and spoke
> environment has issues, and as such, the R&S Lab Exam would not have us
> configure this, unless they permitted some very big "workarounds".
>
>
> -----Original Message-----
> From: nobody_at_groupstudy.com [mailto:nobody_at_groupstudy.com] On Behalf Of
> imran ali
> Sent: Tuesday, December 07, 2010 5:12 PM
> To: Cisco certification
> Subject: MA on spoke router !! Rp on another spoke !! sender/receier on
> another spoke ...
>
> hi experts ,
>
> if in a lab environment the task ask to configure MA on a spoke router
> which dont have direct l2 circuits with others except the Hub , the other
> spokes will not get mappings due to lack of l2 connectivity . what are
> different work around we can have ???
>
> i m getting a lot of frustration after trying hard to get a successful ping
> from a spoke routers.
>
> R1 is a hub R2 , R3 , R4 are spokes . R2 is RP and R3 is MA , the
> receivers are behind R4 . All running pim sparse mode , no rpf issues as
> topology is very simple running single igp and pim on all interface (each
> router has only one s0/0 int connected to cloud )
>
> however R4 is not getting MA messages and ping fails . i have given ip pim
> nbma mode / auto rp listener command on the hub router as well.
>
> has any one tried multi casting heavily on dynamips and spotted any issues
> ?
>
>
> Regards
>
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Received on Wed Dec 08 2010 - 17:18:15 ART

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