[c-nsp] System MTU on trunks for Q in Q

[Ben Steele]

1504 is the system mtu you want, however i'd find a higher common  
value between your switches incase you choose to run mpls down the  
track, or anything else that is going to add to your frame size.

Ben

On 27/03/2008, at 9:31 AM, Dan Armstrong wrote:

> I've been bashing my head against the wall all day for a definitive
> answer on this:
>
> On a Cisco switch that supports QinQ (3550, 3750, ME3400, 3560 etc)
>
>
> What is the _minimum_ value I need to set the system MTU to, to do
> QinQ?  1504?  1522?  1526?  1546?
>
> I can't seem to find one concise answer...
>
>
> Thanks!!
>
>
>
>
>
>
>
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