[c-nsp] BGP Route selection

[Gary Roberton]

Pete

To clarify  - if I just adjust the local preference on the receiving router,
that should do it?

But if I didn't have an admin control of the receiving router I would do it
on the advertising router by requesting a community.

Just sanity checking...


On Fri, May 23, 2008 at 4:53 PM, Pete Templin <petelists at templin.org> wrote:

> Gary Roberton wrote:
>
>  Router A BGP table entry is shown here;
>>
>> *  90.0.0.0 <http://90.0.0.0>         10.40.1.6 <http://10.40.1.6>
>>         50             0 64604 1000 i
>>
>> *>                  10.40.1.2 <http://10.40.1.2>
>>      0 64603 1000 i
>>
>>
> Paths come from different neighbor ASes, so MED doesn't apply unless you
> override default behavior.
>
> On most newer IOSes, oldest path wins, so everything's working as expected.
>
> You should tweak a different knob to achieve the desired results. Origin
> code comes to mind as an easy twiddle.  Or, have the remote routers send a
> community to request a particular local preference (as someone else
> suggested) - you'll need a community-list and a route-map to catch this.  Or
> just write a route-map to adjust local-pref or weight upon local receipt of
> the prefix.
>
> pt
>