Re: Auto-rp question

Indeed... it was designed to work in dense mode. So when you use
sparse-dense mode you are saying that things try to run sparse, but can fall
back to dense mode and thus it works. ip pim autorp listener is basically a
"hack" that says "For JUST 224.0.1.39 and 224.0.1.40 run in dense mode...for
everything else run sparse mode". Like I said it was basically a hack Cisco
came up with so that customers could run the Cisco baby protocol while still
maintaining a sparse-mode environment.

On Fri, Sep 25, 2009 at 8:05 AM, Anthony Sequeira <asequeira_at_ine.com> wrote:

> Hi Omar!
>
> This WAS true, and thus this piece of documentation from Cisco. Here are
> the present day options for running Auto-RP in sparse environments:
>
> 1. Sparse-Dense Mode
> 2. ip pim autorp listener
> 3. Statically map the Auto-RP groups
>
> Warmest Regards,
>
> Anthony J. Sequeira, CCIE #15626
> http://www.INE.com
>
> Test your Core Knowledge today!
> Q: Which bits in the ToS byte are used for DSCP markings?
> A: The six leftmost bits of the ToS byte are used for packet marking.
> More Info:
> http://www.cisco.com/en/US/tech/tk543/tk757/technologies_tech_note09186a00800949f2.shtml
>
>
>
> On Sep 25, 2009, at 6:26 AM, omar maiah wrote:
>
> Hi group,
>> i read this when i was configuring auto-rp for multicast
>>
>> Sparse-Dense Mode for Auto-RP
>> A prerequisite of Auto-RP is that all interfaces must be configured in
>> sparse-dense mode using the *ip pim sparse-dense-mode* interface
>> configuration command
>>
>>
>> http://www.cisco.com/en/US/docs/ios/solutions_docs/ip_multicast/White_papers/rps.html#wp1029241
>>
>> So i noticed the word must in the above sentence, is that true ??
>> Also it works with ip pim sparse-mode, or this is what i think
>>
>> Regards
>>
>>
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-- 
Regards,
Joe Astorino - CCIE #24347 R&S
Technical Instructor - IPexpert, Inc.
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