I have a question about the mtu size with mpls.
How I set the mtu to support ATOM, VPLS, L3VPN?
I found some documents, but for me it is not totally clear.
It seems that the 12000 Routers sets automatically the mtu to 1538. The 7606, 7201 and 3750 not.
How i configure this on the various platforms?
only set the interface mtu and mpls mtu to 1538bytes (on 3750 the system mtu)?
Brings any drawback if I set, for example, the mtu to 1600 or greater?