Specifications

mpls ldp logging neighbor-changes
MP-234
Cisco IOS Multiprotocol Label Switching Command Reference
January 2010
mpls ldp logging neighbor-changes
To generate system error logging (syslog) messages when Label Distribution Protocol (LDP) sessions
go down, use the mpls ldp logging neighbor-changes command in global configuration mode. To
disable generating syslog messages, use the no form of this command.
mpls ldp logging neighbor-changes
no mpls ldp logging neighbor-changes
Syntax Description This command has no arguments or keywords.
Defaults Logging is enabled by default.
Command Modes Global configuration
Command History
Usage Guidelines Use the mpl
s ldp logging neighbor-changes command to generate syslog messages when an LDP
session goes down. The command also provides VRF information about the LDP neighbor and the
reason for the LDP session going down. Some of the reasons for an LDP session going down are the
following:
• An LDP was disabled globally by configuration.
• An LDP was disabled on an interface.
Examples The following example generates syslog messages when LDP sessions go down:
Router(config)# mpls l
dp logging neighbor-changes
Release Modification
12.0(24)S This command was introduced.
12.2(14)S This command was integrated into Cisco IOS Release 12.2(14)S.
12.2(14)T This command was integrated into Cisco IOS Release 12.2(14)T.
12.0(31)S The log message is updated to show a VPN routing/forwarding instance
(
VRF) information and the reason for an LDP neighbor going down.
12.3(15) The log message is updated to show VRF information and the reason for an
L
DP neighbor going down.
12.4(1) The log message is updated to show VRF information and the reason for an
L
DP neighbor going down.
12.2(28)S The log message is updated to show VRF information and the reason for an
L
DP neighbor going down.