Re: [mpls-linux-general] Help on zldpd

[Praveen H <hpr...@in...>]

Thanks for the clarifications.

I am still facing problems in setting up a zldp based
network. Here is the configuration I have:

      eth0    eth0  eth1  eth0    eth1  eth2   eth0   eth0
 -------        ------       -------      ------       -------
| Host1 |------| LER1 |-----| Core  |----| LER2 |-----| Host2 |
 -------        ------       -------      ------       -------
 150.1.40.2  40.1     |     1.2    2.2   2.1    |     5.2
                  192.168.1.1                 132.10.5.1  

I have configured zebra running ospf, rip and bgp on all the routers 
along with zebra ldpd. All the routes are properly set, ospf, bgp and 
rip are behaving as expected.

Linux kernel is ver - 2.4.5 with mpls_linux patch.

I have zldpd running with the following config files
(I have inherited these conf files from the sample in the
source tree..so I suspect some misconfiguration here)

At LER1:

hostname ldpd
password a
log stdout
interface lo
interface eth0
mpls ip
interface eth1
mpls ldp router-id 192.168.1.1
mpls ip
line vty

(Q: what are these mpls commands and how do they relate to
corrosponding interface commands?)

At Core:

hostname ldpd
password a
log stdout
interface lo
interface eth0
mpls ip
interface eth1
mpls ldp router-id 192.168.1.2
mpls ip
line vty

At LER2:

hostname ldpd
password a
log stdout
interface lo
interface eth0
mpls ip
interface eth2
mpls ldp router-id 192.168.2.1
mpls ip
line vty


zebra_ldp is sending hello packets seemlessly..but I dont see the
neighbour list getting updated as it reports to have not established 
sessions. On doing 'show mpls ldp routes' on the ldpd console, I can
see correct routes being shown. 

I think I have a fundamental problem in the configuaration. 

Is this configuration and enough to setup LSPs?

My next question: I understand that zldpd allocates the labels 
and FECs based on the information gathered from Zebra routing 
tables, if so, how do I specify my own FEC and LSP. Is my 
understanding right?

And, how do I understand the mpls proc files. Is there any pointers to
which I can refer?

-- Praveen



-----Original Message-----
From: "James R. Leu" <jl...@mi...>
To: Praveen H <hpr...@in...>
Date: Fri, 20 Jul 2001 15:23:42 -0500
Subject: Re: [mpls-linux-general] Help on zldpd

> > Here are my questions:
> > 
> > Am I doing the right thing running zldpd and ldp_linux together?
> 
> Nope.  One or ther other.
> 
> > I assume I need to use mplsadm to specify the FEC bindings and the 
> > ldp will do the LSP allocation, is this right?
> 
> Nope.  zldp will setup labels for all the routes it has learned from
> the
> zebra engine.
> 
> -- 
> James R. Leu
>