Configuring Ldp Discovery Parameters - Cisco ASR 9000 Series Configuration Manual

Implementing MPLS Label Distribution Protocol

Configuring LDP Discovery Parameters

Perform this task to configure LDP discovery parameters (which may be crucial for LDP operations).
The LDP discovery mechanism is used to discover or locate neighbor nodes.
Note
SUMMARY STEPS
1. configure
2. mpls ldp
3. router-id { type number | ip-address }
4. discovery { hello | targeted-hello } holdtime seconds
5. discovery { hello | targeted-hello } interval seconds
6. Use the commit or end command.
7. (Optional) show mpls ldp parameters
DETAILED STEPS
Command or Action
Step 1 configure
Example:
RP/0/RSP0/CPU0:router# configure
Step 2
mpls ldp
Example:
RP/0/RSP0/CPU0:router(config)# mpls ldp
Step 3
router-id { type number | ip-address }
Example:
RP/0/RSP0/CPU0:router(config-ldp)# router-id
loopback 1
Step 4 discovery { hello | targeted-hello } holdtime
seconds
Example:
RP/0/RSP0/CPU0:router(config-ldp)# discovery
hello holdtime 30
RP/0/RSP0/CPU0:router(config-ldp)#
discovery targeted-hello holdtime 180
OL-28381-02
Purpose
Enters global configuration mode.
Enters MPLS LDP configuration mode.
Specifies the router ID of the local node.
• In Cisco IOS XR software, the router ID is specified as an
Specifies the time that a discovered neighbor is kept without receipt
of any subsequent hello messages. The default value for the seconds
argument is 15 seconds for link hello and 90 seconds for targeted
hello messages.
Cisco ASR 9000 Series Aggregation Services Router MPLS Configuration Guide, Release 4.3.x
Configuring LDP Discovery Parameters
interface name or IP address. By default, LDP uses the global
router ID (configured by the global router ID process).
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