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SHA1
Monitoring LDP Neighbors
Purpose
Display LDP neighbor information.
Action
To display information about LDP neighbor 10.3.5.1:
host1#show ldp neighbor 10.3.5.1 LDP Neighbor: 10.0.2.2 LSR: Remote 10.0.2.2:0, local 10.0.1.1:0 Transport address: remote 10.0.2.2, local 10.0.1.1 State: Operational LDP advertisement: Unsolicited Up for 00:20:03
Number of next-hop addresses received = 3
10.0.2.2 100.6.12.2 100.6.23.2
Number of adjacencies = 1
Link Hello adjacency: address 10.6.12.2, transport 10.0.2.2,
Up for 00:20:09, remaining hold time: 11 secTo display brief information about all LDP neighbors:
host1#show ldp neighbor brief
Neighbor Transport Address State 10.0.2.2 10.0.1.1->80.0.2.2 Operational
To display information about graceful restart for neighbors:
host1#show ldp neighbor graceful-restart LDP Neighbor: 10.0.1.1 Graceful Restart is disabled Helper Mode is enabled Reconnect Time: 0 msec Recovery Time: 0 msec State: operational
LDP neighbor 10.0.2.2 Graceful Restart is enabled Helper Mode is enabled Reconnect Time: 220000 msec Recovery Time: 0 msec State: operational
To display information about LDP statistics for the session with each LDP neighbor:
host1#show ldp neighbor statistics
LDP Neighbor: 10.0.2.2 Message type Received Sent ---------------- -------- ---- Initialization 1 1 Keepalive 85 85 Notification 0 0 Address 1 1 Address withdraw 0 0 Label mapping 5 5 Label request 0 0 Label withdraw 2 2 Label release 2 2
 | Note: The mpls keyword is optional and is provided for compatibility with non–E Series implementations. |
| Note: If a password is configured for a peer, you can view the password with the show configuration command. This command displays the passwords in cleartext unless the service password-encryption command has been issued, in which case the passwords are displayed in encrypted format. |
Meaning
Table 68 lists the show ldp neighbor command output fields.
Table 68: show ldp neighbor Output Fields
Field Name | Field Description |
|---|---|
LDP neighbor | IP address of LDP peer |
LSR | IP address of remote and local peers; the number following the colon is the platform label space ID, and is always 0 |
Transport address | Transport remote and local address for the TCP session |
State | State of the session, nonexistent (session connection not established) or operational (has received keepalive message) |
LDP advertisement | Mode of label distribution, downstream-unsolicited or downstream-on-demand |
Up | Time that the adjacency has been up, in hh:mm:ss format |
Graceful Restart | State of graceful restart, enabled or disabled |
Helper Mode | State of graceful restart helper mode, enabled or disabled |
Reconnect Time | Value for reconnect time received from peer in FT TLV, in milliseconds |
Recovery Time | Value for recovery time received from peer in FT TLV, in milliseconds |
State | Status of the neighbor’s graceful restart, one of the following: |
nonexistent | LDP session is not established |
restarting | Neighbor LSR is restarting |
recovering | Session with neighbor LSR has reestablished after the neighbor restarted; label bindings are being exchanged |
operational | LDP session is up |
Neighbor | IP address of LDP peer |
Initialization | Number of initialization messages received and sent |
Keepalive | Number of keepalive messages received and sent |
Notification | Number of notification messages received and sent |
Address | Number of address messages received and sent |
Address withdraw | Number of address withdraw messages received and sent |
Label mapping | Number of label mapping messages received and sent |
Label request | Number of label request messages received and sent |
Label withdraw | Number of label withdraw messages received and sent |
Label release | Number of label release messages received and sent |
