[j-nsp] MX960 JunOS recommendations

[Jonathan Lassoff]

Excerpts from sthaug's message of Thu Nov 12 00:12:16 -0800 2009:
> Absolutely. We use quite a bit of dual tagging on Ethernet, so then we
> need to crank it up to 4492. But all our backbone links are 4484 on the
> Juniper side.

Is there a reason not to use 9000-bytes everywhere (accounting for
bridges/interfaces that count/don't count ethernet headers)?

--j