BGP Ques

Unanswered Question
Jun 1st, 2010

2010-06-01_092636.jpgper topology and on the site#1 to site#2 migration strategy later in year. First, I want to integrate both Rx-PR into IBGP with site#2 under AS 30 so will have the same AS in 2 locations. There is a redundant WAN btwn the two sites. Currently, both ISP are sending default route to site#2 but I plan to do EBGP with them. My plan is that during cut night, I am getting rid of isp#2 but keeping isp#1 and will have isp#1 move the 2.2.2.0/24 over to site#2 or preferably can I have site#2 also advertise 2.2.2.0/24 with a lower/highter metric (ie Prepend AS) so during the cut, I don’t have to do much but just turn off site#1 internet routers.

I have this problem too.
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aamercado Tue, 06/01/2010 - 20:36

sorry for not being clear....is this doable meaning:

1. Is it better to have one AS running IBGP btwn the 2 sites? or have the same AS at each site but each site do not running IBGP with each other

2. If #1 is yes, can I have 2 AS advertising the same route 2.2.2.0/24 with different metrics with site#1 the preferred. Basically I will prepend AS on site#2 and leave Site#1 alone.

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