Specifications

Table Of Contents
show mpls ldp discovery
MP-661
Cisco IOS Multiprotocol Label Switching Command Reference
January 2010
Usage Guidelines This command displays neighbor discovery information for LDP or Tag Distribution Protocol (TDP). It
generates a list of interfaces over which the LDP discovery process is running.
Examples The following is sample output from the sho
w mpls ldp discovery command:
Router# show mpls ldp discovery
Local LDP Identifier:
10.1.1.1:0
Discovery Sources:
Interfaces:
Ethernet1/1/3 (ldp): xmit/recv
LDP Id: 172.23.0.77:0
LDP Id: 10.144.0.44:0
LDP Id: 10.155.0.55:0
ATM3/0.1 (ldp): xmit/recv
LDP Id: 10.203.0.7:2
ATM0/0.2 (tdp): xmit/recv
TDP Id: 10.119.0.1:1
Targeted Hellos:
10.8.1.1 -> 10.133.0.33 (ldp): active, xmit/recv
LDP Id: 10.133.0.33:0
10.8.1.1 -> 192.168.7.16 (tdp): passive, xmit/recv
TDP Id: 10.133.0.33:0
Router#
The following is sample output from the show mpls ldp discovery all command, which shows the
interfaces engaged in LDP discovery activity for all the VPN routing and forwarding instances, including
those in the default routing domain. In this example, note that the same neighbor LDP ID (10.14.14.14)
appears in all the listed VRF interfaces, highlighting the fact that the same IP address can coexist in
different VPN routing and forwarding instances.
Router# show mpls ldp discovery all
Local LDP Identifier:
10.12.12.12:0
Discovery Sources:
Interfaces:
ATM1/1/0.1 (tdp):xmit/recv
TDP Id:10.11.11.11:0
VRF vpn1:Local LDP Identifier:
172.30.7.2:0
Discovery Sources:
Interfaces:
ATM3/0/0.1 (ldp):xmit/recv
LDP Id:10.14.14.14:0
VRF vpn2:Local LDP Identifier:
172.30.13.2:0
12.2SX This command is supported in the Cisco IOS Release 12.2SX train. Support
in a specific 12.2SX release of this train depends on your feature set,
platform, and platform hardware.
12.0(33)S This command was integrated into Cisco IOS Release 12.0(33)S and LDP
M
D5 password rollover information displays in the command output when
the detail argument is used with the show mpls ldp discovery command.
Release Modification