Re: [isp-bgp] Size of iBGP Mesh

[Paul Brooks <pbrooks@...>]

Abhishek Verma wrote:
> Hi,
>
> My RR announces one BGP route out of the two that it has. Because of
> this the clients only see one route and use only that path. Because of
> this the link utilization has gone in O(90%) while the other remains
> under utilized (less than 20%).
>
> I need to make the clients use both the links, for which the RR would
> need to send me the two routes for that destination. Can something be
> done about this?
In this situation I try to build the BGP session to peer with an 
internal loopback address, so that loopback address becomes the target 
for the BGP advertisement, rather than a real interface address. Then 
fiddle the internal routing so that the clients have equal-cost paths 
down each link to that loopback address, usually by adding a couple of 
static routes.

--
Dr Paul Brooks            |         
Director                  |         Mob 0414 366 605
Layer 10 Advisory         |         Ph  +61 2 9402 7355
   Layer 10 - telecommunications strategy & design






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