Re: DOT1q tunnels with etherchannel

From: Sadiq Yakasai (sadiqtanko@gmail.com)
Date: Thu Mar 05 2009 - 17:17:56 ARST

Hi Dennis,

is this doc any helpful?

http://www.cisco.com/en/US/docs/switches/lan/catalyst3560/software/release/12.2_46_se/configuration/guide/swtunnel.html#wp1018452

Sadiq

On Thu, Mar 5, 2009 at 6:03 PM, Dennis Worth <dennis.worth@gmail.com> wrote:

> Hey group,
> I have a quick query with regards to why 2 separate vlans are required on
> the provider side of dot1q tunnels when using ether channel. If anyone has
> a
> document on this, that would be great. See Below for diagram.
>
> SW3 --- SW4
> | |
> | |
> SW1 --- SW2
>
> Switch 3 and for are aggregating 2 ports and the tunnel runs between edge
> on sw1 and sw2. The problem is that each interface connected to the
> customer
> switches needs a separate access vlan. Why is this? What underlying theme
> is
> there? I tried to debug the l2protocol-tunnel but with no success.
>
> Thanks,
> --
> Dennis Worth
>
>
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