Basic MPLS configuration on CML. MPLS not being enabled...

[prinsloo007]

I configured the below basic MPLS core network on CML but when I try to enable MPLS on the interfaces within the MPLS core it is not being enabled. When I do a "sh mpls interface" or "sh mpls ldp neighbors" I don't get any output.

R1
hostname R1
int lo0 
ip add 1.1.1.1 255.255.255.255
ip ospf 1 area 0 

int f0/0
ip add 10.0.0.1 255.255.255.0
no shut
ip ospf 1 area 0

R2
hostname R2
int lo0
ip add 2.2.2.2 255.255.255.255
ip ospf 1 are 0 

int f0/0
ip add 10.0.0.2 255.255.255.0
no shut
ip ospf 1 area 0

int f0/1 
ip add 10.0.1.2 255.255.255.0 
no shut 
ip ospf 1 area 0 


R3
hostname R3
int lo0 
ip add 3.3.3.3 255.255.255.255
ip ospf 1 are 0 

int f0/0 
ip add 10.0.1.3 255.255.255.0 
no shut 
ip ospf 1 area 0 

Step 2 – Configure LDP on all the interfaces in the MPLS Core

I tried the below 2 options to configure LDP on the interfaces.

• At each interface enter the mpls ip command
• Under the ospf process use the mpls ldp autoconfig command

R1
router ospf 1
mpls ldp autoconfig

R2
router ospf 1
mpls ldp autoconfig

R3
router ospf 1
mpls ldp autoconfig

[balaji.bandi]

what IOS image you using for router ?

show version - post here the output

1. are you able to ping p2p interface between routers

2. post show ip interface brief (see interface up )

( some device you need to disable ip cef on IOL Routers)

other side you need to enable ip cef (the one supported)  also try global command - mpls label protocol ldp

3. Do you have ospf peering working , show ip ospf neigh

[M02@rt37]

Hello @prinsloo007

take care on GNS3, sometimes due to commands, OSPF process is "shutdown".

All you config is pretty good. Do no shut on OSPF process if necesary.

Check OSPF adjencies on all Routers:

After that it should be good!

Note: add command #ip cef command on each Routers