From: Desyatnik, Yan (Yan.Desyatnik@xxxxxxx)
Date: Tue Jan 16 2001 - 13:32:58 GMT-3
Are you running sparse mode or sparse-dense mode. 224.0.1.39 /40 groups
(announce/discover) are expected to run in dense mode so information is
flooded. It is strongly recommended to use sparse-dense mode if using
auto-rp (is that what you use). If you have hub-spoke topology, place your
MA on a spoke and RP can be on the hub router.
Yan
-----Original Message-----
From: Allyn Baskerville [mailto:abaskerville@ibeam.com]
Sent: Tuesday, January 16, 2001 11:12 AM
To: 'Brian Hescock'; Robert DeVito
Cc: ccielab@groupstudy.com
Subject: RE: auto-rp and frame-relay
I have another question about how the RP is supposed to show
up at the spoke
routers. The spoke routers receive announcements for the
RP; however, when
I do a "show ip pim rp" the RP doesn't show up until after I
ping a
multicast address. Then eventually the RP entry times out,
even though it
continues to be announced. Is this to be expected? Thanks -
Allyn
-----Original Message-----
From: Brian Hescock [mailto:bhescock@cisco.com]
Sent: Sunday, January 14, 2001 10:11 PM
To: Robert DeVito
Cc: ccielab@groupstudy.com
Subject: Re: auto-rp and frame-relay
Also, one thing a lot of people don't realize, and could be
a "gotcha", is
an RP learned via Auto-RP is preferred over a statically
defined rp via
"ip pim rp-address" (assuming you aren't specifying "ip pim
accept-rp to
filter which ones you'll accept as an RP).
Brian
On Mon, 15 Jan 2001, Robert DeVito wrote:
> Does anyone have any good examples of using auto-rp in a
hub and spoke??
My
> understanding is that you need to have your MA on your hub
and the
> rp-announce on your spokes? Am I close?
>
> Thank you,
> Robert
>
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