[j-nsp] RSVP to LDP migration

[Clarke Morledge]

When we initially configured our RSVP infrastructure we ran into a big 
problem since the LSPs/FastReroute were not being handled properly over 
aggregated Ethernet links.   So I had to fairly quickly convert everything 
over to LDP so that I could work on the RSVP/link-aggregation issue later.

In my experience, you can easily configure LDP to run alongside RSVP and 
not tunnel over RSVP.  I simply followed Garrett's recipes in the _JUNOS 
Cookbook_, along with the Junos documentation, for basic LDP setup and it 
was pretty straight forward -- no surprises.  To enable LDP to be 
prefered, I just changed the route preference on RSVP on all of my 
routers, without having to disable "protocol rsvp".  This was with Junos 
9.6 on the MX platform.

I do not have a good sense of outage time, however, simply because my RSVP 
stuff wasn't really working properly to begin with.  The fact that LDP 
came up and traffic started flowing immediately was good enough for me at 
the time :-)

Clarke Morledge
College of William and Mary
Information Technology - Network Engineering
Jones Hall (Room 18)
chmorl at wm.edu