From: Suzan S. (suzan_ccie@yahoo.com)
Date: Tue Feb 12 2008 - 05:29:33 ARST
ip pim-fallback is used when using sparse-dense-mode
ip pim rp-listener is used when using sparse-mode only
Group can correct me if this wrong.
backbone systems <backbone.systems@gmail.com> wrote:
I think u r correct.
The no ip pim dm-fallback command only prevents interfaces configured
as pim sparse-dense mode from becoming dense interfaces if RP
configuration is lost.
BB
On Feb 12, 2008 2:11 AM, Kubrat Vapzarov wrote:
> Is configuring all multicast interfaces as pim sparse-mode enough to prevent the router from falling back to dense mode? I read ten different articles on just this topic and the more I read the more confused I get. I have the feeling that some of the authors are confused themselves too. The Cisco on-line documentation is also unclear. Once it says that by configuring BSR we absolutely prevent falling back to dense mode another time they state just the opposite. The no ip pim dm-fallback command only prevents interfaces configured as pim sparse-dense mode from becoming dense interfaces if RP configuration is lost.
> I guess my question is if the task is to ensure that no DM fallback occurs what configuration will fulfill the task?
>
>
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