[c-nsp] MPLS experimental bits and switch port trust state

[lists at hojmark.org]

> Does anyone has an idea whether a catalyst switch with a 
> default trust state on its ports preserves MPLS experimental 
> bits or not?

"For received MPLS packets, the PFC3BXL and PFC3B always trust EXP in the
received topmost label. The input interface trust state nor the port CoS,
nor the policy-map trust command, have any effect on the MPLS packets."

http://tinyurl.com/67cme

-A