From: Hobbs (deadheadblues@gmail.com)
Date: Tue Jan 06 2009 - 21:38:00 ARST
Thank you Roger. That does explain it. How would prevent a bogus RP from
advertising itself? ACL blocking 224.0.0.13 on a router port? Neighbor
filter? I guess this assumes you have a router attached to a LAN and it has
PIM enabled...
On Tue, Jan 6, 2009 at 4:30 PM, Roger RPF <rpf@bluemail.ch> wrote:
> 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,
>
>
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