From: ehiwe peter (ccie.in.nigeria@gmail.com)
Date: Sat Jul 26 2008 - 17:11:53 ART
ALTERNATIVE
you dont have to configure a tunnel.
u could use sparse mode btw d routers in the FR cloud and use pim nbma mode
on the hub.
u might use a tunnel in order not to starve out other unicast traffic going
through the hub since multicast uses a priority hardware queue
or may be cos it is easier to configure but
On 7/25/08, Bob Sinclair <bob@bobsinclair.net> wrote:
>
> Fahad Khan wrote:
>
>> Only Sparse or sparse-dense modes are used in NBMA network (FR). For dense
>> mode traffic in NBMA, we use tunnel. futher, I have a question that we
>> cant
>> we use dense mode in NBMA??
>>
>>
>>
>
> Fahad,
>
> I recall from a Beau Williamson presentation that there is no inherent
> reason that NBMA mode could not be implemented for Dense mode distribution.
> Rather, a decision was made not to support it because Dense mode groups
> typically have many more interfaces on the OILIST than groups distributed in
> Sparse Mode, so there were scaling issues.
>
> HTH,
>
> Bob Sinclair CCIE 10427 CCSI 30427
> www.netmasterclass.us
>
>
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