[j-nsp] LDP issues

[Sergio D.]

This can also be an extended LDP discovery issue. Can you possibly share
your ldp configuration for the problem juniper routers, a show ldp database
| match "Input|L2CKT" , and a show l2circuit connections.



That's the simple setup I have


        6500-sup720
           |
           |
           |
           m5 -------- m20------> bunch of other routers



I have ldp enabled on every router and the m20 has no problems setting up
l2circuits to every router except the m5 and 6500.

I noticed on the m5 that it doesn't have any LDP routes from the m20 but
has 1 from the 6509.

The configuration for both interfaces are the same and the mpls/ldp
configs are similar.


**@***# run show route protocol ldp

inet.0: 206261 destinations, 411236 routes (206240 active, 0 holddown, 21
hidden)
+ = Active Route, - = Last Active, * = Both

x.x.x.x125/32   [LDP/9] 00:20:08, metric 1
                    > to x.x.x.78 via ge-0/2/0.0

inet.1: 163 destinations, 163 routes (163 active, 0 holddown, 0 hidden)

inet.3: 4 destinations, 5 routes (4 active, 0 holddown, 0 hidden)
+ = Active Route, - = Last Active, * = Both

x.x.x.125/32   [LDP/9] 00:20:09, metric 1
                    > to x.x.x.78 via ge-0/2/0.0

inet.4: 163 destinations, 163 routes (163 active, 0 holddown, 0 hidden)

mpls.0: 17 destinations, 17 routes (17 active, 0 holddown, 0 hidden)
+ = Active Route, - = Last Active, * = Both

310464             *[LDP/9] 00:20:09, metric 1
                    > to x.x.x.78 via ge-0/2/0.0, Pop
310464(S=0)        *[LDP/9] 00:20:09, metric 1
                    > to x.x.x.78 via ge-0/2/0.0, Pop

inet6.0: 2 destinations, 2 routes (2 active, 0 holddown, 0 hidden)

__juniper_private1__.inet6.0: 1 destinations, 1 routes (1 active, 0
holddown, 0 hidden)

l2circuit.0: 1 destinations, 1 routes (0 active, 0 holddown, 1 hidden)

-------------------


125 is the loopback address of the 6509
110 is the loopback address of the m20
124 is the loopback address of a router being the m20

**@**# run show ldp neighbor
Address            Interface          Label space ID         Hold time
x.x.x.124     lo0.0              x.x.x.124:0         89
x.x.x.74      ge-0/3/0.0         x.x.x.110:0         10
x.x.x.78      ge-0/2/0.0         x.x.x.125:0         12


**@**# run show ldp session
  Address           State        Connection     Hold time
x.x.x.110      Operational  Open             22
x.x.x.124      Operational  Open             172
x.x.x.125      Operational  Open             174


m5 is running 6.3
m20 is running 7.4r1.7


Do you guys have any idea?


-chris



-- 
Sergio Danellli
JNCIE #170