[c-nsp] Re: Two different VTP-domains that interconnect with dot1q= no go?

[Alex Rubenstein]

We do this.

Notes:

a) make sure you are filtering on both side of the trunks which vlans are 
allowed.

b) make sure they are in seperate VTP domains, with different passwords.

Follow that, and you are OK. We do this quite a bit.




On Tue, 19 Apr 2005 sthaug at nethelp.no wrote:

>> There are a few caveats (DTP, you need one VLAN and one physical port per
>> trunk you want to tunnel, etc.), but nothing too major. QinQ works on 6500 and
>> 3750 series switches at least; I haven't checked what other platforms it's
>> supported on.
>
> 3750 with a reasonably new IOS - 12.2(25)SE or thereabouts. Also works
> on 3550 (and has been working there much longer than on the 3750).
>
> Steinar Haug, Nethelp consulting, sthaug at nethelp.no
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-- 
Alex Rubenstein, AR97, K2AHR, alex at nac.net, latency, Al Reuben
Net Access Corporation, 800-NET-ME-36, http://www.nac.net