WG: [mpls-linux-general] LDP (linux-port)

[Kauder T. <Tho...@ic...>]

-----Urspr=FCngliche Nachricht-----
Von: Kauder Thorsten=20
Gesendet: Dienstag, 11. Dezember 2001 13:53
An: 'nc...@si...'
Betreff: AW: [mpls-linux-general] LDP (linux-port)


Hi Paul,
The ldp-linux port does not act as you might expect.
I'll try helping you to find the problem.

I found out that first of all you have to create the routes before
starting ldp.
If you add routes after having started the ldp_linux they are
not exchanged or used to create LSPs.

In the Readme they just add a route to the other Host. I didn't try
that and have no idea if that works. I allways use a dummy device on
each computer and create routes pointing out that dummydevice.
e.g.

on A
	ifconfig dummy0 1.2.3.4
	route add -net 20.1.1.1/24 gw 1.2.3.4

on B
	route add -net 20.1.1.1/24 gw A
(not shure if the commands are correct bwcause I use Zebra and ospf to =
create the routing-tables)

I think this is a more realistic scenario.

What surprised me most is that I had a problem with only one route to =
be
propagated. With two or more it worked.

try adding the routes prior to starting ldp.

(by the way mpls_fec only holds the routes and FECs for outgoing LSPs)

hope this helps
tell me if it doesn't

Thorsten

PS:
Be careful stopping your ldp_session. allways first delete the =
interface before exiting.
Otherwise the labelmappings stay in /proc/net/ and it's a quite =
annoying procedure getting rid
of them again.