From: RoRo (cisconetman@gmail.com)
Date: Sat May 17 2008 - 17:47:31 ART
If you are forming a dot1q tunnel between a switch with two routed ports and
a router on a stick configuration, then you would need two vlan's, otherwise
I think you are fine using only one vlan.
make sense?
On 5/17/08, mac ccie <mac2008.ccie@gmail.com> wrote:
>
> Experts,
>
> Sw1----------------port 1 Sw2 port1 -------------------------------Sw3
> ---------------- port2 port2
> -------------------------------
>
> If I have to connect SW1 and Sw3 using etherchannel do I really need two
> vlans on Sw2 (one for port1 on both sides and one for port2 on both
> sides). One of the examples I see in IE labs are using two seperate vlans.
> I tried and it work with even a single vlan on both side.
>
>
>
> Sw2:
>
> both port1:
>
> sw mo dot1q
> sw acc vlan 100
> l2pro cdp
>
>
> both port2:
>
> sw mo dot1q
> sw acc vlan 100 <<one of the lab in IE I saw using 101 here.
> l2pro cdp
>
>
>
> Also in general If Sw1 and Sw3 are same customers branches then regardless
> of how many links I have to the same customer switch I should assign same
> metro vlan right?
>
> Thanks,
> Mac
>
>
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