> Speaking from a personal interest, has the Point-to-Point Protocol > stopped being useful? > > After all, PPP over Sonet/SDH was specifically designed for just this case.
Absolutely, and it still works great for that purpose. However, given a provider backbone with Ethernet being the underlying technology, I don't see why anybody would want to use PPP on top of Ethernet instead of just plain Ethernet. After all we're *not* talking about DSL or dialup here, there's no need to authenticate users etc. Steinar Haug, Nethelp consulting, sth...@nethelp.no