Re: FW: Switching question

Yes, you can use a dot1q tunnel on SW2. SW1 and SW3 would have trunk ports
to SW2. SW2 would have something like this on its ports connected to SW1 and
SW2:

interface range f0/13, f0/16
 switchport access vlan 20
 switchport mode dot1q-tunnel

No vlan 10 required on SW2.

On Thu, Oct 22, 2009 at 6:37 PM, CCIE CCIE <get_ccie_at_hotmail.com> wrote:

> Hi group,
>
> i have 3 switches
>
> SW1---SW2---SW3
>
> trunks are in between, ONLY SW1&3 has the VLAN 10
>
> now if i have 2 clients in vlan 10, one on SW1 and the other on SW3 wants
> to
> communicate, can they do it without creating vlan 10 on SW2 ??
>
> the first thought was yes, but it seems that it will not work, so any
> explanation ??
> i thought that this traffic will be carried through the trunk int, passing
> SW2, even if vlan 10 was not created on it
>
>
> Regards
>
>
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-- 
Bryan Bartik
CCIE #23707 (R&S), CCNP
Sr. Support Engineer - IPexpert, Inc.
URL: http://www.IPexpert.com
Blogs and organic groups at http://www.ccie.net