[c-nsp] MPLS MTU / Jumbo frames etc.

[Peter Rathlev]

On Thu, 2009-07-23 at 11:50 +0800, Mark Tinka wrote:
> We've standardized on 9,000 bytes on all our switches and routers,
> especially so because we are both a C & J house.
> 
> Different line cards that support different values, different switch
> models within C that support different values, are fixed at 9,000
> bytes, e.t.c., means that 9,000 bytes is safe.

Two small notes:

For people having traffic traversing a FWSM beware that at least v3.1
seems to only accept up to 8500 bytes MTU.

Also the 3560/3750 series support jumbo frames up to "only" 9000 bytes.

Regards,
Peter