Re: Anycast RP

Is THAT what the problem is? :)

*Scott Morris*, CCIE/x4/ (R&S/ISP-Dial/Security/Service Provider) #4713,

JNCIE-M #153, JNCIS-ER, CISSP, et al.

JNCI-M, JNCI-ER

evil_at_ine.com

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Rick Mur wrote:
> Ahm well of course :-) Reach-ability is the first essential need for a
> network geek right? ;-)
> --
>
> Regards,
>
> Rick Mur
> CCIE2 #21946 (R&S / Service Provider)
> Sr. Support Engineer  IPexpert, Inc.
> URL: http://www.IPexpert.com
>
>
> On Mon, Aug 31, 2009 at 12:15 AM, Scott Morris <smorris_at_ine.com
> <mailto:smorris_at_ine.com>> wrote:
>
> Well... that and the underlying assumption that if it's your OWN
> network you are running Anycast RP for, that any of the multicast
> source addresses, you're going to know about already. :) If not,
> there may be some other 'issues' going on!
>
>
>
>
> *Scott Morris*, CCIE/x4/ (R&S/ISP-Dial/Security/Service Provider)
> #4713,
>
> JNCIE-M #153, JNCIS-ER, CISSP, et al.
>
> JNCI-M, JNCI-ER
>
> evil_at_ine.com <mailto:evil_at_ine.com>
>
>
> Internetwork Expert, Inc.
>
> http://www.InternetworkExpert.com
>
> Toll Free: 877-224-8987
>
> Outside US: 775-826-4344
>
>
> Knowledge is power.
>
> Power corrupts.
>
> Study hard and be Eeeeviiiil......
>
>
>
>
>
>
> Rick Mur wrote:
>> Especially for Anycast RP you don't need BGP. The only thing Anycast RP
>> means is advertising a rendezvous point with an IP address that is
>> advertised by 2 or more routers. That way the router will use the rendezvous
>> point according to the RP that is close by according to IGP metric, could
>> also be advertised by BGP of course, but as long as the prefix is getting
>> advertised everything is fine.
>> What you are referring to is like Scott said MSDP. According to spec it's
>> needed, but it works as long as you get your RPF information exchanged,
>> either by static mroutes, an IGP or BGP. Though MSDP is designed to work
>> between Service Providers and thus an MBGP environment. It really depends on
>> your topology when used as a lab task.
>>
>>
>> --
>>
>> Regards,
>>
>> Rick Mur
>> CCIE2 #21946 (R&S / Service Provider)
>> Sr. Support Engineer IPexpert, Inc.
>> URL: http://www.IPexpert.com
>>
>>
>> On Sun, Aug 30, 2009 at 10:08 PM, Scott Morris <smorris_at_ine.com> <mailto:smorris_at_ine.com> wrote:
>>
>>
>>> According to the MSDP spec (and I thought it used to be on the DocCD) if
>>> you have more than two peers you need MBGP. Actually, you don't, but it
>>> makes things more efficient if you run it. ;)
>>>
>>> On the v4 blueprint, I'd see it as a possibility but not necessarily a
>>> requirement. v3, no worries.
>>>
>>> HTH,
>>>
>>>
>>>
>>>
>>> *Scott Morris*, CCIE/x4/ (R&S/ISP-Dial/Security/Service Provider) #4713,
>>>
>>> JNCIE-M #153, JNCIS-ER, CISSP, et al.
>>>
>>> JNCI-M, JNCI-ER
>>>
>>> evil_at_ine.com <mailto:evil_at_ine.com>
>>>
>>>
>>> Internetwork Expert, Inc.
>>>
>>> http://www.InternetworkExpert.com
>>>
>>> Toll Free: 877-224-8987
>>>
>>> Outside US: 775-826-4344
>>>
>>>
>>> Knowledge is power.
>>>
>>> Power corrupts.
>>>
>>> Study hard and be Eeeeviiiil......
>>>
>>>
>>>
>>>
>>>
>>>
>>> Rookie Ccie wrote:
>>>
>>>> Dear Experts,
>>>>
>>>> Please let me know whether I need BGP on the network to enable Anycast RP
>>>> withing a single PIM SM domain or will it be ok with OSPF. BGP
>>>>
>>> requirement
>>>
>>>> is not mentioned on Cisco Doc's.
>>>>
>>>>
>>>>
>> http://www.cisco.com/en/US/docs/ios/ipmulti/configuration/guide/imc_basic_cfg
>> _ps6350_TSD_Products_Configuration_Guide_Chapter.html#wp1062999
>>
>>>> Rgds
>>>>
>>>>
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Received on Sun Aug 30 2009 - 18:19:35 ART