Command or Action Purpose
Step 11 show mpls ldp neighbor [[vrf vpn-name] [address |
interface] [detail] | [all]]
Example:
Router# show mpls ldp neighbor
Displays the status of LDP sessions.
Examples
The following show mpls interfaces command verifies that interfaces Ethernet 1/0 and 1/1 have been
configured to use LDP:
Router# show mpls interfaces
Interface IP Tunnel BGP Static Operational
Ethernet3/0 Yes (ldp) No No No Yes
Ethernet3/1 Yes No No No Yes
The following show mpls ldp discovery command verifies that the interface is up and is sending LDP
Discovery Hello messages (as opposed to TDP Hello messages):
Router# show mpls ldp discovery
Local LDP Identifier:
172.16.12.1:0
Discovery Sources:
Interfaces:
Ethernet3/0 (ldp): xmit
The following example shows that the LDP session between routers was successfully established:
Router# show mpls ldp neighbor
Peer LDP Ident: 10.1.1.2:0; Local LDP Ident 10.1.1.1:0
TCP connection: 10.1.1.2.18 - 10.1.1.1.66
State: Oper; Msgs sent/rcvd: 12/11; Downstream
Up time: 00:00:10
LDP discovery sources:
FastEthernet1/0, Src IP addr: 10.20.10.2
Addresses bound to peer LDP Ident:
10.1.1.2 10.20.20.1 10.20.10.2
For examples on configuring directly connected LDP sessions, see the Configuring Directly Connected
MPLS LDP Sessions Example, page 21.
Establishing Nondirectly Connected MPLS LDP Sessions
This section explains how to configure nondirectly connected MPLS LDP sessions, which enable you to
establish an LDP session between routers that are not directly connected.
• MPLS requires CEF.
• You must configure the routers at both ends of the tunnel to be active or enable one router to be
passive with the mpls ldp discovery targeted-hello accept command.
Establishing Nondirectly Connected MPLS LDP Sessions
How to Configure MPLS LDP
MPLS LDP Configuration Guide, Cisco IOS Release 12.4
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