Re: Auto RP Listener

if you are using this command then no need to configure the interfaces as
sparse-dense mode

On Thu, Apr 16, 2009 at 8:34 PM, Ravi Singh <way2ccie_at_googlemail.com> wrote:

> Auto-rp listener is used to treat the groups 224.0.1.39 and
> 224.0.1.40 in a dense-mode to overcome the chicken & egg problem of
> auto-rp with sparse-mode. If you are using sparse-dense-mode you don't
> need the auto-rp listener because if the RP is not known the interface
> falls back to dense mode to discover the RP. But if you are using only
> sparse-mode , you still need to send mcast packets for groups
> 224.0.1.39 and 224.0.1.40 out every PIM enabled interface to discover
> the RP and that's what the auto-rp listener does .
>
> HTH
> Ravi
>
> On Thu, Apr 16, 2009 at 6:08 PM, Ryan West <rwest_at_zyedge.com> wrote:
> > Jason,
> >
> > Your interfaces would be configured for ip pim sparse-mode.
> >
> > -ryan
> >
> > -----Original Message-----
> > From: nobody_at_groupstudy.com [mailto:nobody_at_groupstudy.com] On Behalf Of
> Jason Alex
> > Sent: Thursday, April 16, 2009 1:02 PM
> > To: Cisco certification
> > Subject: Auto RP Listener
> >
> > Dear All,
> > As i know that the command "*ip pim auto-rp listener*"
> > configures sparse mode operation for all the multicast groups except "*
> > 224.0.1.39*" & "*224.0.1.40*" works as a dense mode operation
> >
> > So the question is , should i configure the PIM interfaces with "*ip pim
> > sparse-mode*" or "*ip pim sparse-dense-mode*" ?
> >
> > Thanks In Advance
> >
> >
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Received on Thu Apr 16 2009 - 20:38:57 ART