From: Larry (cc13lab@gmail.com)
Date: Thu Jul 17 2008 - 10:40:51 ART
Ed,
I would do exactly as they say and match via an as-path list as that is what
they are asking for. Also, your as-path acl is not going to match exactly
the prefixes originating in as 300, it will also match 1300, 2300, 33300
etc. I would use _300$ so you get 300 pluse any prepending they might be
doing.
hth
larry
On 7/17/08, Ed Man <networkexpert08@gmail.com> wrote:
>
> Hi Group,
>
> If it asks to "configure the network by adjusting MED so that AS100 prefers
> R1 to reach prefixes originated in AS300", and the topology is,
>
> [ AS100 R3 ]----------[ R1, R2, AS200 ]----------[ AS300 ]
>
> peering, R3---R1, R3---R2,
>
> can I simply configure it as, on R1 and R2 that,
>
> R1:
> route-map MED
> set metric 1
> router bgp 200
> nei <R3> route-map MED out
>
> R2:
> route-map MED
> set metric 2
> router bgp 200
> nei <R3> route-map MED out
>
> or I have to configure an "ip as-path access-list" to match specificly the
> prefixes that originated in AS300, like this,
>
> ip as-path access-list 1 permit 300$
>
> route-map MED
> match as-path 1
> set metric <metric>
>
>
> Which one will merit me a point in real CCIE lab exam?
>
> Adv. Thanks
> Ed.
>
>
> _______________________________________________________________________
> Subscription information may be found at:
> http://www.groupstudy.com/list/CCIELab.html
This archive was generated by hypermail 2.1.4 : Mon Aug 04 2008 - 06:11:55 ART