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LDP targeted session

Dear all,

I am seeing LDP session established for none directly connected peers.

I can understand this being the case when using targeted LDP for previously connected peers which have lost L1 link for example...but cannot see why remote peers with no explicit LDP peering are establishing sessions.

here is a sample of my config:

mpls label protocol ldp

tag-switching tdp router-id Loopback10 force

!

mpls ldp neighbor 172.16.0.5 pass sam

mpls ldp neighbor 172.16.0.6 pass sam

mpls ldp explicit-null

no tag-switching advertise-tags

tag-switching advertise-tags for SAM

tag-switching tdp discovery

!

directed-hello accept from SAM

ip access-list standard SAM

permit 172.16.0.0 0.0.0.255

and under interfaces :

mpls label protocol ldp

Any thoughts as in why am LDP sessions are just being established ?

TIA

Sam

2 REPLIES
Cisco Employee

Re: LDP targeted session

Sam,

It could be that you are running LDP on a MPLS TE tunnel as follow:

interface tunnelxx

mpls ip

Regards

Harold Ritter
Sr. Technical Leader
CCIE 4168 (R&S, SP)
harold@cisco.com
México móvil: +52 1 55 8312 4915
Cisco México 
Paseo de la Reforma 222 Piso 19
Cuauhtémoc, Juárez
Ciudad de México, 06600
México

Re: LDP targeted session

Thanks for the reply Harold,

I am not using TE, just plan LDP sessions.

Sam

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