From: Marko Milivojevic (markom@markom.info)
Date: Wed Nov 26 2008 - 15:12:11 ARST
Yes.
On Wed, Nov 26, 2008 at 17:02, Narbik Kocharians <narbikk@gmail.com> wrote:
> You mean you know an ISP that actually does that?
>
> On Wed, Nov 26, 2008 at 3:15 AM, Marko Milivojevic <markom@markom.info>
> wrote:
>>
>> On Tue, Nov 25, 2008 at 21:34, Narbik Kocharians <narbikk@gmail.com>
>> wrote:
>> !
>> > But i don't know of a provider that configures the cluster-id, typically
>> > a
>> > RR-client must be a client in at least 2 or more clusters, this way the
>> > provider maximizes its availability.
>>
>> It's actually very common practice when deploying hierarchical route
>> reflection (global RR's reflect to regional RR's which reflect to
>> local RR's and vice-versa).
>>
>> In this kind of scenario, where redundant route-reflectors are at the
>> same time route-reflector clients, forming a loop is very real danger.
>> The "only" way to prevent these loops is careful cluster-id planning
>> and I'm more than certain that these are set manually to values other
>> than BGP router-id :-).
>>
>> --
>> Marko
>> CCIE #18427 (SP)
>> My network blog: http://cisco.markom.info/
>>
>>
>> Blogs and organic groups at http://www.ccie.net
>>
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>>
>>
>>
>>
>>
>>
>
>
>
> --
> Narbik Kocharians
> CCSI#30832, CCIE# 12410 (R&S, SP, Security)
> www.MicronicsTraining
> www.Net-Workbooks.com
> Sr. Technical Instructor
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