From: Jason Morris (mcnever@gmail.com)
Date: Sun Jan 25 2009 - 18:44:53 ARST
I was under the impression 'no ip pim dm-fallback' was to keep sparse-dense
mode from falling back. you cant configure dm-fallback on a router that is
just running sparce mode.
R1(config)#ip pim dm-fallback
Can not have fallback mode as dense, all interfaces are in pim sparse mode
On Sun, Jan 25, 2009 at 2:35 PM, Wouter Prins <wp@null0.nl> wrote:
> Roger,
>
> Good point. :)
> I think when you are using ip pim autorp listener that forwards (224.0.1.39
> and 224.0.1.40 dense-like) , you dont need ip pim dm-fallback anymore.
>
> 2009/1/25 Roger RPF <rpf@bluemail.ch>
>
> > Hi Group,
> >
> > While reading the DocCD I was surprised reading on the following link
> step
> > 14:
> >
> >
> >
> http://www.cisco.com/en/US/docs/ios/ipmulti/configuration/guide/imc_basic_cf
> > g_ps6350_TSD_Products_Configuration_Guide_Chapter.html#wp1059016<
> http://www.cisco.com/en/US/docs/ios/ipmulti/configuration/guide/imc_basic_cf%0Ag_ps6350_TSD_Products_Configuration_Guide_Chapter.html#wp1059016
> >
> >
> > that we should configure no ip pim dm-fallback on all routers in a sparse
> > mode domain.
> >
> > Well, my understanding is, that if I'm running sparse-mode only my router
> > does not fall back to dm for flooding?
> >
> > Do I understand something wrong?
> >
> > regards
> >
> > Roger
> >
> >
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> >
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