Re: ip pim rp-add 'override'

U rock too!

Many thanks for this!!!

On Tue, Oct 27, 2009 at 8:18 AM, garry baker <baker.garry_at_gmail.com> wrote:

> yep i just set it up:
>
> R2 <---> R1
>
> R2:
> interface Serial0/0
> ip address 183.1.123.2 255.255.255.0
> ip authentication mode eigrp 100 md5
> ip authentication key-chain eigrp 100 EIGRP
> ip pim sparse-mode
> encapsulation frame-relay
> no ip split-horizon eigrp 100
> clock rate 2000000
> no arp frame-relay
> frame-relay map ip 183.1.123.1 201 broadcast
> frame-relay map ip 183.1.123.3 203 broadcast
> no frame-relay inverse-arp
>
> interface Loopback0
> ip address 100.2.2.2 255.255.255.0
> ip pim sparse-mode
> ip igmp join-group 239.1.1.1
> no ip pim dm-fallback
> ip pim bsr-candidate Serial0/0 0
> ip pim rp-candidate Serial0/0
>
> R2#sh ip pim bsr-router
> PIMv2 Bootstrap information
> This system is the Bootstrap Router (BSR)
> BSR address: 183.1.123.2 (?)
> Uptime: 00:07:24, BSR Priority: 0, Hash mask length: 0
> Next bootstrap message in 00:00:14
> Candidate RP: 183.1.123.2(Serial0/0)
> Holdtime 150 seconds
> Advertisement interval 60 seconds
> Next advertisement in 00:00:05
>
> R2#sh ip pim rp
> Group: 239.1.1.1, RP: 183.1.123.1, v2, uptime 00:04:04, expires 00:02:24
>
>
> R1:
> interface Serial0/0
> ip address 183.1.123.1 255.255.255.0
> ip authentication mode eigrp 100 md5
> ip authentication key-chain eigrp 100 EIGRP
> ip pim sparse-mode
> encapsulation frame-relay
> clock rate 2000000
> no arp frame-relay
> frame-relay map ip 183.1.123.2 102 broadcast
> frame-relay map ip 183.1.123.3 102
> no frame-relay inverse-arp
> no ip pim dm-fallback
> ip pim bsr-candidate Serial0/0 0
> ip pim rp-candidate Serial0/0
>
> R1#sh ip pim bsr-router
> PIMv2 Bootstrap information
> BSR address: 183.1.123.2 (?)
> Uptime: 00:03:53, BSR Priority: 0, Hash mask length: 0
> Expires: 00:01:17
> This system is a candidate BSR
> Candidate BSR address: 183.1.123.1, priority: 0, hash mask length: 0
> Candidate RP: 183.1.123.1(Serial0/0)
> Holdtime 150 seconds
> Advertisement interval 60 seconds
> Next advertisement in 00:00:25
>
> R1(config)#ip pim rp-address 100.2.2.2
> R1(config)#do sh ip pim rp
> Group: 239.1.1.1, RP: 183.1.123.1, v2, next RP-reachable in 00:01:00
> Group: 224.0.1.40, RP: 100.2.2.2, uptime 00:00:05, expires never
>
> R1(config)#ip pim rp-address 100.2.2.2 override
> R1(config)#do sh ip pim rp
> Group: 239.1.1.1, RP: 100.2.2.2, uptime 00:00:02, expires never
> Group: 224.0.1.40, RP: 100.2.2.2, uptime 00:00:21, expires never
>
>
>
> On Tue, Oct 27, 2009 at 3:06 PM, Rick Mur <rmur_at_ipexpert.com> wrote:
>
>> The dynamic methods Auto-RP and BSR are preferred OVER static RP. You
>> would
>> use this to configure a static RP as fallback when the dynamic way fails.
>>
>> If you configure ip pim rp-address without override, Auto-RP and BSR will
>> override this. After adding the override, the router will use the
>> statically
>> configured RP.
>>
>> This is by the way really easy to test with just 2 routers within 10
>> minutes, or even 1 router if you don't have 2 :-)
>>
>>
>>
>> --
>>
>> Regards,
>>
>> Rick Mur
>> CCIE2 #21946 (R&S / Service Provider)
>> Sr. Support Engineer IPexpert, Inc.
>> URL: http://www.IPexpert.com <http://www.ipexpert.com/>
>>
>>
>> On Tue, Oct 27, 2009 at 12:21 PM, ALL From_NJ <all.from.nj_at_gmail.com>
>> wrote:
>>
>> > Hey team, morning.
>> >
>> > I do not have time to test this out this morning, but would ask if
>> anyone
>> > knows or already has the answer this would be cool.
>> >
>> > Using the override command, we can tell the router to prefer this static
>> > entry over dynamic / auto-rp. Does this also work for BSR? It appears
>> so
>> > via the docs, but some learning materials I have seen only mention the
>> > override option working instead of auto-rp.
>> >
>> > Any input would be appreciated ... or ...
>> >
>> > If you have the time, configure two routers, (me like using two routers)
>> > ...
>> > both with pim, one with BSR and verify that the RP is propagated and
>> > accepted by the other router. Then add this command to the other
>> router,
>> > ip
>> > pim rp-add xyz, first without and then with the override option.
>> >
>> > I would enjoy hearing your experience. Many TIA,
>> >
>> > --
>> > Andrew Lee Lissitz
>> > all.from.nj_at_gmail.com
>> >
>> >
>> > Blogs and organic groups at http://www.ccie.net
>> >
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>>
>>
>>
>>
>>
>>
>
>
> --
> Garry L. Baker
>
> "There is no 'patch' for stupidity." - www.sqlsecurity.com
>

-- 
Andrew Lee Lissitz
all.from.nj_at_gmail.com
Blogs and organic groups at http://www.ccie.net