Specifications

show mpls ldp discovery
MP-663
Cisco IOS Multiprotocol Label Switching Command Reference
January 2010
Interfaces:
ATM3/0/0.12 (ldp):xmit/recv
LDP Id:10.14.14.14:0
VRF vpn13:Local LDP Identifier:
Router#
Table 113 describes the significant fields shown in the display.
The following is sample output from the show mpls ldp disc
overy detail command showing that LDP
was enabled by the mpls ip command and the mpls ldp autoconfig command:
Router# show mpls ldp discovery detail
Local LDP Identifier:
10.11.11.11:0
Discovery Sources:
Interfaces:
Serial2/0 (ldp): xmit/recv
Enabled: Interface config, IGP config;
Hello interval: 5000 ms; Transport IP addr: 10.11.11.11
Ta b l e 113 show mpls ldp discovery Field Descriptions
Field Description
Local LDP Identifier The LDP identifier for the local router. An LDP identifier is 6-bytes
d
isplayed in the form “IP address:number.”
By convention, the first four bytes of the LDP identifier constitute the
rou
ter ID; integers, starting with 0, constitute the final two bytes of the IP
add
ress:number construct.
Interfaces Lists the interfaces that are engaging in LDP discovery activity:
• The xmit field—Indicates that the interface is sending LDP discovery
hello packets.
• The recv field—Indicates that the interface is receiving LDP discovery
hello packets.
• The (LDP) or (TDP) field—Indicates the Label Distribution Protocol or
Tag Distribution Protocol configured for the interface.
The LDP (or TDP) identifiers indicate the LDP (or TDP) neighbors
di
scovered on the interface.
Targeted Hellos Lists the platforms to which targeted hello messages are being sent:
• The xmit, recv, (ldp), and (tdp) fields are as described for the Interfaces
field.
• The active field indicates that this LSR has initiated targeted hello
messages.
• The passive field indicates that the neighbor LSR has initiated targeted
hello messages and that this LSR is configured to respond to the targeted
hello messages from the neighbor.
Note The entry for a given target platform may indicate both active and
passive.