[c-nsp] Late night BGP puzzler
Collins, Richard (EXT)
richard.1.collins.ext at nsn.com
Wed Aug 1 21:24:13 EDT 2007
What about using the command 'bgp always-compare-med' under the bgp
router?
If I understand this command then you can compare MED's between internal
and externally
learned routes instead of having 'best route' just going for external.
Rich
>Message: 1
>Date: Wed, 01 Aug 2007 11:58:23 -0400
>From: Jeff Fitzwater <jfitz at Princeton.EDU>
>Subject: Re: [c-nsp] Late night BGP puzzler
>To: "Metz, E.T. (Eduard)" <Eduard.Metz at tno.nl>
>Cc: cisco-nsp at puck.nether.net
>Message-ID: <46B0AD9F.3090005 at princeton.edu>
>Content-Type: text/plain; charset=ISO-8859-1; format=flowed
>
>I set a MED value for each peer so that I can control which peer is
used
>if they have equal paths.
>
>
>Jeff Fitzwater
>OIT Network Systems
>Princeton University
>
>Metz, E.T. (Eduard) wrote:
>> If I understand correctly, the cost-community is only considered very
>> late in the decision process (among others after as-path, med and
>> e-bgp/i-bgp):
>>
http://www.cisco.com/en/US/tech/tk365/technologies_tech_note09186a008009
>> 4431.shtml
>>
>> All these should be equal before the cost-community kicks in..
>>
>> /Eduard
>>
>>
>>> -----Original Message-----
>>> From: cisco-nsp-bounces at puck.nether.net
>>> [mailto:cisco-nsp-bounces at puck.nether.net] On Behalf Of Manu Chao
>>> Sent: woensdag 1 augustus 2007 12:38
>>> To: pkranz at unwiredltd.com
>>> Cc: cisco-nsp at puck.nether.net
>>> Subject: Re: [c-nsp] Late night BGP puzzler
>>>
>>> eBGP prefer to iBGP
>>>
>>> On 8/1/07, Peter Kranz <pkranz at unwiredltd.com> wrote:
>>>
>>>> I can't for the life of me figure out why this won't select
>>>>
>>> path #2 as
>>>
>>>> the best path.. can someone unravel what I'm missing.. My
>>>>
>>> goal is to
>>>
>>>> get it to resolve the equal length AS path dispute usin
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