Re: bgp neighbor and ISL trunk

Without seeing your configs, it's probably related to ISL not having a native VLAN.

Have you verified basic connectivity (i.e. ping) from R1 to the SW2 IP address when using ISL?

On 6/02/2013, at 2:42 PM, Daniel Barney Briseqo <daniel.barney.b_at_hotmail.com> wrote:

> hello...
> So i have this topology.
>
> R1-------SW1----(TRUNK ISL)-----SW2
>
> On R1 I have on the physical interface the ip 10.10.10.1 and on SW2 over vlan 10, ip 10.10.10.2
> when setting up a e-bgp neighbor from R1 to SW2.... if using dot1q on the trunk the neighbor comes up, but when I use ISL it does not.
>
> Could you tell me why is this happening?
>
>
> Daniel Barney Briseqo
> "El zltimo minuto tambiin tiene 60 segundos"
> daniel.barney.b_at_hotmail.com
>
>
> Blogs and organic groups at http://www.ccie.net
>
> _______________________________________________________________________
> Subscription information may be found at:
> http://www.groupstudy.com/list/CCIELab.html

Blogs and organic groups at http://www.ccie.net
Received on Wed Feb 06 2013 - 15:59:48 ART