[c-nsp] mpls ldp discovery transport-address

[Vikas Sharma]

Hi,

Below is the output of sh mpls ldp discovery. Here LDP identifier and LDP
discovery source are different. I can change discovery source using "mpls
ldp discovery transport-address but my question here is what is the best
practice and what are the benefits? is it using both LDP identifier and
Discovery source same or different?

One of the benefit I can see is if I use the same IP for both is I can
reduce the number of labels. Any other benefit wrt security!!!

router1# sh mpls ldp discovery
 Local LDP Identifier:
    212.74.65.105:0
    Discovery Sources:
    Interfaces:
        GigabitEthernet0/1 (ldp): xmit/recv
            LDP Id: 212.74.65.124:0
        GigabitEthernet0/2 (ldp): xmit/recv
            LDP Id: 212.74.65.126:0
    Targeted Hellos:
        212.74.65.105 -> 212.74.65.124 (ldp): passive, xmit/recv
            LDP Id: 212.74.65.124:0
        212.74.65.105 -> 212.74.65.126 (ldp): passive, xmit/recv
            LDP Id: 212.74.65.126:0

router1#sh mpls fo
router1#sh mpls forwarding-table  | in 212.74.65.124
4560   Pop tag     212.74.65.124/32  0          Gi0/1      212.74.88.233
router1#sh mpls forwarding-table  | in 212.74.65.105
router1#

Regards,
Vikas Sharma