From: Rajan kumaresan (rajankumaresan@gmail.com)
Date: Thu Dec 14 2006 - 04:44:05 ART
May be no densemode fallback is the extra command ???.But I have few
clarifications..
<http://www.cisco.com/univercd/cc/td/doc/product/software/ios124/124cg/himc_c
/chap05/mcbbasic.htm#wp1134342>
http://www.cisco.com/univercd/cc/td/doc/product/software/ios124/124cg/himc_c/
chap05/mcbbasic.htm#wp1134342
From the above link, for the below task,
- sparse-mode, Auto-RP and ip pim autorp listener ` has been
configured on one router *( say R1) *which is also RP and Mapping
Agent.Configuring " no ip pim dm-fallback" makes sense here right?
What about the other Multicast routers ( Non RP & Non Mapping Agent) with
sparse-mode & ip pim autorp listener enabled.Do you really require "no ip
pim dm-fallback.
Configuring **ONLY* *on *R1* will not surve the purpose ? OR Is it like "
no dense-mode fallback" has to be configured "wherever ip pim autorp
listener" is configured ?
*Note*: As per doccd *no ip pim dm-fallback **`** (optional) *Prevents PIM
dense mode fallback. Configure this command on *all routers in a PIM
sparse-mode domain*
Static RP :
There is a example for sparse-mode with single static RP.Why no densemode
fall back (no ip pim dm-fallback) is needed for the interface which has only
sparse mode configured and also eventhen only static RP is available.I hope
some one can clarify me..
Thanks,
Rajan
On 12/13/06, Salman Abbas <dukelondon@gmail.com> wrote:
>
> No, nothing else needs to be configured.
>
> On 12/14/06, Standley, Jeffrey <jeffrey.standley@shawgrp.com> wrote:
> >
> > If all interfaces are running in sparse-mode and I want to use auto-rp,
> is
> > their anything extra that needs to be configured other than "ip pim
> autorp
> > listener"?
> >
> > Jeff Standley
> > Network Engineer (CCNP, CCSP)
> > The Shaw Group, Inc.
> > 4171 Essen Ln
> > Baton Rouge, LA 70809
> > 225.987.6209
> >
> > ----- Original Message -----
> > From: nobody@groupstudy.com <nobody@groupstudy.com>
> > To: Abderrahim sadki <a_sadki1@hotmail.com>
> > Cc: ccielab@groupstudy.com <ccielab@groupstudy.com>
> > Sent: Wed Dec 13 08:46:41 2006
> > Subject: Re: ip multicast
> >
> > Hi bro,
> >
> > If you want to configure auto-rp, you MUST use sparse-dense mode as you
> > need
> > dense mode for groups 224.0.1.39 and 224.0.1.40. However, if the
> question
> > explicity prohibits the use of sparse-dense mode, you will have to use
> > sparse mode with "ip pim autorp listener" on all multicast running
> > routers.
> >
> > HTH,
> >
> > Cheers!!
> > Salman
> >
> >
> >
> > On 12/13/06, Abderrahim sadki <a_sadki1@hotmail.com> wrote:
> > >
> > > Hi,
> > >
> > > How can I know f I need to use sparse-dense mode or sparse mode
> only??
> > >
> > > Knowing that I will have to configure autp-rp.
> > >
> > > Thanks
> > >
> > > --------------------------------------------------------------------
> > >
> > > From: Ivan <ivan@iip.net>
> > > Reply-To: Ivan <ivan@iip.net>
> > > To: ccielab@groupstudy.com, JB <jellyboy@gmail.com>
> > > Subject: Re: As-path Q ^ and _
> > > Date: Wed, 13 Dec 2006 12:02:37 +0300
> > > >^100$ - it is your direct peer
> > > >_100$ - prefix originated in AS100
> > > >
> > > > > Hi Group, I am wanting to know the difference between the
> > > following 2
> > > > > expressions. I have included what I think are the correct
> > > > > interpretations. Please expand upon if I am incorrect....
> > > > >
> > > > >
> > > > > ^100$ routes that originated in AS100 only (and that is the only
> > > AS)
> > > > > _100$ routes that originated in AS100 (and there may be other
> > > ASes
> > > > > prepended to this)
> > > > >
> > > > > I have had a play on looking glass and those were my
> > > conclusions....
> > > > >
> > > > >
> > > > > TIA,
> > > > >
> > > > > JB
> > > > >
> > > > >
> > >
> _______________________________________________________________________
> > > > > Subscription information may be found at:
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> > > >
> > > >--
> > > >Ivan
> > > >
> > >
> >_______________________________________________________________________
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