[j-nsp] Config help for basic MPLS setup

[sthaug at nethelp.no]

> Multihop BGP between SRX & MX? The EXs don't need to learn the labels that are transiting?

P routers only need to learn the *outer* label (which tells you how
to get to the destination PE). They learn this from LDP or RSVP.

Steinar Haug, Nethelp consulting, sthaug at nethelp.no