From: Roger RPF (rpf@bluemail.ch)
Date: Tue Jan 06 2009 - 21:30:04 ARST
Hobbs,
This is a different concept than with AutoRP. With BSR, the BSR does not
decide which is the best RP for each group (as the MA in AutoRP does), he
just sends out all group to rp-mapping information via bootstrap messages to
the other routers (224.0.0.13).
Then, the other PIM routers choose the best RP for each group.
So you have to filter in the rp candidate messages for which group the
related rp is responsible
ip pim rp-candidate interface-type interface-number [group-list access-list]
[interval seconds] [priority value]
With AutoRP, the Mapping Agent decides, after he got all the rp-announce,
which rp is responsible for which group (based on the higher ip address if
two rp announce the same group).
So if we have multiple Auto-RP domains crossing, or different mapping
agents, we may want to specify for which RP's the Mapping agent is in charge
of. We can do that with a rp-announce filter.
I hope my explanation is not too confusing :o))
regards
Roger
-----Urspr|ngliche Nachricht-----
Von: nobody@groupstudy.com [mailto:nobody@groupstudy.com] Im Auftrag von
Hobbs
Gesendet: Dienstag, 6. Januar 2009 22:48
An: Cisco certification
Betreff: Is there a BSR equivalent to "ip pim rp-announce-filter"?
Hello,
Is there a BSR equivalent to "ip pim rp-announce-filter" ?
If you had to restrict which groups a router was RP for, at the BSR - how
could you do it?
thanks,
Blogs and organic groups at http://www.ccie.net
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