From: Nick Griffin (ngriffin@sio.midco.net)
Date: Thu Apr 27 2006 - 13:53:00 GMT-3
So the issue in this particular scenario the problem is the multipoint
interface on R5, the advertisement is received on S0/0 and cannot be
sent back out, even with nbma mode?
Thanks
Brian McGahan wrote:
> Yes there can be situations like with multipoint NBMA where a
> candidate rp or mapping agent advertisement comes in and needs to be
> sent back out the same interface, but can't due to the OIL restrictions
> (incoming and outgoing interface can't be the same). There are
> workarounds for this like assigning default RPs for 224.0.1.39 and
> 224.0.1.40 and using NBMA mode, but BSR avoids this completely because
> all the messages are sent on a hop by hop basis, unlike Auto-RP.
>
>
> HTH,
>
> Brian McGahan, CCIE #8593
> bmcgahan@internetworkexpert.com
>
> Internetwork Expert, Inc.
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>
>
>> -----Original Message-----
>> From: nobody@groupstudy.com [mailto:nobody@groupstudy.com] On Behalf
>>
> Of
>
>> Nick Griffin
>> Sent: Thursday, April 27, 2006 9:59 AM
>> To: ccielab@groupstudy.com
>> Subject: IEWB 3.0 Lab19 Mcast 6.1
>>
>> Are there any scenarios where it is possible that Auto RP will not be
>> able to distribute the group to RP mappings utilizing sparse-mode, ip
>> pim autorp listener to all the necessary routers as BSR could? The
>> solution for IEWB Lab19 Sec 6.1 utilizes BSR, I didn't see any
>> indication why Auto RP could not be used, however I wasn't able to get
>> the Group to RP mappings propogated to R4. I don't see any indications
>> of RPF failures to the MA/RP. I'm at a loss why Auto RP will not
>>
> achieve
>
>> the desired goal. Thoughts are appreciated.
>>
>> NG
>>
>>
>>
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