LDP Operational Commands
LDP Show Commands
The LDP show commands provide detailed information about the LDP protocol operations.
LDP Summary
Syntax:
Option | Description |
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Without any option, the command displays the LDP summary information for all instances. |
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Displays LDP summary information about the specified instance. |
Example: LDP summary for the default instance
supervisor@rtbrick>SPINE01: op> show ldp summary Instance: default General information: LDP identifier: 198.51.100.2:0, Version: 1 FEC resolution: Best match Protocol preference: 9 LSR ID: 198.51.100.2 IPv4 Status: True IPv6 Status: True Modes: Advertisement mode: Downstream Unsolicited Advertisement control mode: Ordered Label retention mode: Liberal Capabilities: IPv6 address family: - , Graceful restart: False Loop detection: False Hop count: -, Vector length: - Timers: Adjacency: Hello: 5s, Holdtime: 15s Targeted adjacency: Hello: 15s, Holdtime: 45s Session: Keepalive: 10s, Holdtime: 30s Statistics: Adjacency: Link adjacency: 2, Targeted adjacency: 0 Session: Session in non-existent: 0, Session in initialized: 0 Session in opensent: 0, Session in openconfirm: 0 Session in operational: 2 Instance: green General information: LDP identifier: 192.0.2.2:0, Version: 1 FEC resolution: Best match Protocol preference: 9 LSR ID: 192.0.2.2 IPv4 Status: True IPv6 Status: True Modes: Advertisement mode: Downstream Unsolicited Advertisement control mode: Ordered Label retention mode: Liberal Capabilities: IPv6 address family: - , Graceful restart: False Loop detection: False Hop count: -, Vector length: - Timers: Adjacency: Hello: 5s, Holdtime: 15s Targeted adjacency: Hello: 15s, Holdtime: 45s Session: Keepalive: 10s, Holdtime: 30s <...>
To access the Operational State API that corresponds to this CLI, click
here.
LDP Neighbor
Syntax:
Option | Description |
---|---|
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Without any option, this command displays information about LDP neighbors. |
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Detailed information about the LDP neighbors. |
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Displays LDP neighbor information about the specified instance. |
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Displays detailed LDP neighbor information about the specified instance. |
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Displays LDP neighbor information about the specified LDP identifier and instance. |
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Displays LDP neighbor information about the specified interface. |
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Displays detailed LDP neighbor information about the specified interface. |
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Displays LDP neighbor information about the specified LDP identifier. |
Example 1: Summary view of all the LDP neighbors
supervisor@rtbrick>SPINE01: op> show ldp neighbor Instance: default Interface LDP ID Transport IP Up Since Expires ifl-0/0/0/1 198.51.100.2:0 198.51.100.2 Thu Feb 09 12:17:15 in 11s ifl-0/0/2/1 198.51.100.3:0 198.51.100.3 Thu Feb 09 12:17:31 in 12s ifl-0/0/0/100 198.51.100.2:0 198.51.100.2 Thu Feb 09 12:17:15 in 11s ifl-0/0/0/101 198.51.100.2:0 198.51.100.2 Thu Feb 09 12:17:15 in 11s ifl-0/0/1/102 198.51.100.2:0 198.51.100.2 Thu Feb 09 12:17:15 in 11s supervisor@rtbrick>SPINE01: op>
Example 2: Detailed view of all the LDP neighbors
supervisor@rtbrick>SPINE01: op> show ldp neighbor detail Instance: default LDP-Identifier: 198.51.100.1:0, Peer: 198.51.100.1, Type: Targeted Negotiated holdtime: 45000, Expiry time: 31s 880316us Local link address: 198.51.100.2, Peer link address: 198.51.100.1 Local transport address: 198.51.100.2, Peer transport address: 198.51.100.1 Local holdtime: 45, Peer holdtime: 45, Up since: Tue Mar 04 05:59:47 Local transport preference : ipv6, Peer transport preference : ipv6 Last transition time: Tue Mar 04 07:05:47 GMT +0000 2025 Instance: default LDP-Identifier: 198.51.100.5:0, Peer: 198.51.100.5, Type: Targeted Negotiated holdtime: 45000, Expiry time: 40s 850139us Local link address: 198.51.100.2, Peer link address: 198.51.100.5 Local transport address: 198.51.100.2, Peer transport address: 198.51.100.5 Local holdtime: 45, Peer holdtime: 45, Up since: Tue Mar 04 06:00:11 Local transport preference : ipv6, Peer transport preference : ipv6 Last transition time: Tue Mar 04 07:05:56 GMT +0000 2025 Instance: default LDP-Identifier: 198.51.100.1:0, Peer: 2001:DB8::1, Type: Targeted Negotiated holdtime: 45000, Expiry time: 31s 880318us Local link address: 2001:DB8::2, Peer link address: 2001:DB8::1 Local transport address: 2001:DB8::2, Peer transport address: 2001:DB8::1 Local holdtime: 45, Peer holdtime: 45, Up since: Tue Mar 04 05:59:47 Local transport preference : ipv6, Peer transport preference : ipv6 Last transition time: Tue Mar 04 07:05:47 GMT +0000 2025 <...>
Example 3: Summary view of all the targeted LDP neighbors
supervisor@rtbrick>SPINE01: op> show ldp neighbor Instance: default Interface/Peer LDP ID Transport IP Up Since Expires 198.51.100.1 198.51.100.1:0 198.51.100.1 Tue Mar 04 05:59:47 in 38s 198.51.100.5 198.51.100.5:0 198.51.100.5 Tue Mar 04 06:00:11 in 32s 2001:DB8::1 198.51.100.1:0 2001:DB8::1 Tue Mar 04 05:59:47 in 38s 2001:DB8::5 198.51.100.5:0 2001:DB8::5 Tue Mar 04 05:59:56 in 32s Instance: green Interface/Peer LDP ID Transport IP Up Since Expires 192.0.2.1 192.0.2.1:0 192.0.2.1 Tue Mar 04 05:59:47 in 38s 192.0.2.5 192.0.2.5:0 192.0.2.5 Tue Mar 04 06:00:11 in 32s supervisor@rtbrick>SPINE01: op>
Example 4: Detailed view of a targeted LDP neighbor
supervisor@rtbrick>SPINE01: op> show ldp neighbor ldp-id 198.51.100.1:0 Instance: default LDP-Identifier: 198.51.100.1:0, Peer: 198.51.100.10, Type: Targeted Negotiated holdtime: 45000, Expiry time: 35s 775898us Local link address: 198.51.100.2, Peer link address: 198.51.100.1 Local transport address: 198.51.100.2, Peer transport address: 198.51.100.1 Local holdtime: 45, Peer holdtime: 45, Up since: Tue Mar 04 05:59:47 Local transport preference : ipv6, Peer transport preference : ipv6 Last transition time: Tue Mar 04 07:04:02 GMT +0000 2025 Instance: default LDP-Identifier: 198.51.100.1:0, Peer: 2001:DB8::1, Type: Targeted Negotiated holdtime: 45000, Expiry time: 35s 775923us Local link address: 2001:DB8::2, Peer link address: 2001:DB8::1 Local transport address: 2001:DB8::2, Peer transport address: 2001:DB8::1 Local holdtime: 45, Peer holdtime: 45, Up since: Tue Mar 04 05:59:47 Local transport preference : ipv6, Peer transport preference : ipv6 Last transition time: Tue Mar 04 07:04:02 GMT +0000 2025 supervisor@rtbrick>SPINE01: op>
LDP Interface
Syntax:
Option | Description |
---|---|
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Without any option, this command displays information on all configured LDP interfaces. |
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Specify the name of the interface. |
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Detailed interface information. |
Example 1: Summary view of the specified LDP interface
supervisor@rtbrick: cfg> show ldp interface ifl-0/0/1/1 Instance: green Interface: ifl-0/0/1/1 Primary IPv4 Address: 192.0.2.102, Primary IPv6 Address: 2001:DB8:12::1 Session Hold: 30, Session Keepalive: 10 Discovery Hello: 5, Discovery Hold: 15 Neighbor count: 1, Transport preference: ipv4 IPv4 enable: True, IPv6 enable: True, Cisco interop: False
Example 2: Summary view of all the LDP interfaces
supervisor@rtbrick: cfg> show ldp interface Instance: default Interface Primary IPv4 Address Primary IPv6 Address ifl-0/0/0/1 198.51.100.100 2001:DB8:1::1 ifl-0/0/0/100 198.51.100.101 2001:DB8:2::1 ifl-0/0/0/101 198.51.100.102 2001:DB8:3::1 ifl-0/0/1/102 198.51.100.103 2001:DB8:4::1 ifl-0/0/2/1 198.51.100.104 2001:DB8:5::1 ifl-0/0/3/1 198.51.100.105 2001:DB8:6::1 lo-0/0/0/1 198.51.100.1 lo-0/0/0/2 198.51.100.2 lo-0/0/0/3 198.51.100.3 lo-0/0/0/4 198.51.100.4 lo-0/0/0/5 198.51.100.5 Instance: green Interface Primary IPv4 Address Primary IPv6 Address ifl-0/0/0/202 192.0.2.100 2001:DB8:11::1 ifl-0/0/1/1 192.0.2.102 2001:DB8:12::1 ifl-0/0/1/200 192.0.2.103 2001:DB8:13::1 ifl-0/0/1/201 192.0.2.104 2001:DB8:14::1 ifl-0/0/2/200 192.0.2.105 2001:DB8:15::1 ifl-0/0/3/200 192.0.2.105 2001:DB8:16::1 lo-0/0/1/1 192.0.2.1 lo-0/0/1/2 192.0.2.2 lo-0/0/1/3 192.0.2.3 lo-0/0/1/4 192.0.2.4 lo-0/0/1/5 192.0.2.5
LDP Session
Syntax:
Option | Description |
---|---|
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Without any option, this command displays a summary of LDP session information. |
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Displays detailed information about the LDP sessions. |
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Displays LDP session information about the specified instance. |
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Displays detailed LDP session information about the specified instance. |
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Displays LDP session information about the specified LDP identifier and instance. |
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Displays LDP session information about the specified LDP identifier. |
Example 1: Summary view of the LDP session
supervisor@rtbrick>SPINE01: op> show ldp session Instance: default LDP ID Peer IP State Up/Down FECRcvd FECSent 198.51.100.2:0 198.51.100.2 Operational 0d:00h:29m:44s 15 15 198.51.100.3:0 198.51.100.3 Operational 0d:00h:29m:29s 15 15 supervisor@rtbrick>SPINE01: op>
Example 2: Detailed view of the LDP session
supervisor@rtbrick>SPINE01: op> show ldp session detail Instance: default LDP Identifier: 198.51.100.2:0, Peer IP: 198.51.100.2, Local IP: 198.51.100.1 Type: link, State: Operational, Uptime: 0d:00h:34m:35s Reason: Last transition: Thu Feb 09 12:17:28 GMT +0000 2023, Flap count: 0 Advertisement Mode: Peer: Downstream unsolicited, Local: Downstream unsolicited Negotiated: Downstream unsolicited Timers: Connect retry: 10s Peer keepalive interval: 10s, Local keepalive interval: 10s Peer keepalive timeout: 30s, Local keepalive timeout: 30s Negotiated keepalive interval: 10s Negotiated keepalive timeout: 30s Received messages: Initialization: 1, KeepAlive: 208, Notification: 0 Address: 1, Address Withdraw: 0, Label Mapping: 15 Label Withdraw: 0, Label Release: 0 Sent messages: Initialization: 1, KeepAlive: 208, Notification: 0 Address: 1, Address Withdraw: 0, Label Mapping: 15 Label Withdraw: 0, Label Release: 0 Capability: Typed WildCard FEC: Local Support: True, Peer Support: True, Negotiated: True Total received messages: Initialization: 1, KeepAlive: 92, Notification: 0 Address: 2, Address Withdraw: 0, Label Mapping: 20 Total sent messages: Initialization: 1, KeepAlive: 92, Notification: 0 Address: 2, Address Withdraw: 0, Label Mapping: 20 Label Withdraw: 0, Label Release: 0 <...>
In the case of a T-LDP session, the "Type" will be "Targeted". |
To access the Operational State API that corresponds to this CLI, click
here.
LDP Address
Syntax:
Option | Description |
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Without any option, this command displays a summary of all the interface addresses received from the LDP sessions. |
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Displays LDP address information about the specified instance. |
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Displays LDP address of the specified address family (AFI). Supported values: ipv4, ipv6. |
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Displays LDP address information about the specified LDP identifier and instance. |
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Displays LDP address information about the specified LDP identifier. |
Example: Summary view of all the LDP addresses
supervisor@rtbrick>SPINE01: op> show ldp address Instance: default, LDP Identifier: 198.51.100.2:0, AFI: ipv4 198.51.100.61 198.51.100.102 198.51.100.63 198.51.100.94 198.51.100.2 198.51.100.65 198.51.100.222 198.51.100.21 198.51.100.214 198.51.100.48 <...>
LDP Binding
Syntax:
Option | Description |
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Without any option, this command displays a summary of all the LDP label bindings. |
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Displays detailed LDP label binding information. |
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Displays LDP label binding information of the specified instance. |
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Displays LDP label binding information of the specified address family. Supported AFI value: IPv4, IPv6. |
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Displays detailed LDP label binding information of the specified address family. |
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Displays LDP label binding information of the specified prefix and instance for the specified address family. |
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Displays detailed LDP label binding information of the specified prefix and instance for the specified address family. |
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Displays the LDP received label binding information of the LDP sessions. |
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Displays LDP received label binding information of the specified address family and instance. |
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Displays detailed LDP received label binding information of the specified address family and instance. |
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Displays LDP received label binding information of the specified instance. |
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Displays detailed LDP received label binding information of the specified LDP identifier and instance. |
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Displays LDP received label binding information of the specified address family. Supported AFI values: IPv4, IPv6. |
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Displays detailed LDP received label binding information of the specified address family. |
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Displays LDP received label binding information of the specified address family and instance. |
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Displays detailed LDP received label binding information of the specified address family and instance. |
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Displays LDP received label binding information of the specified address family, instance, and LDP identifier. |
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Displays LDP received label binding information of the specified address family and LDP identifier. |
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Displays detailed LDP received label binding information of the specified address family and LDP identifier. |
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Displays the LDP sent label binding information of the LDP sessions. |
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Displays LDP sent label binding information of the specified address family and instance. Supported AFI values: IPv4, IPv6. |
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Displays detailed LDP sent label binding information of the specified address family and instance. |
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Displays LDP sent label binding information of the specified address family, instance, and prefix. |
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Displays detailed LDP sent label binding information of the specified address family, instance, and prefix. |
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Displays LDP sent label binding information of the specified address family. Supported AFI values: IPv4, IPv6. |
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Displays detailed LDP sent label binding information of the specified address family. |
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Displays LDP sent label binding information of the specified address family and instance. |
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Displays detailed LDP sent label binding information of the specified address family and instance. |
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Displays LDP sent label binding information of the specified address family, instance, and prefix. |
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Displays detailed LDP sent label binding information of the specified address family, instance, and prefix. |
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Displays LDP sent label binding information of the specified address family and prefix. |
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Displays detailed LDP sent label binding information of the specified address family and prefix. |
Example 1: Summary view of the LDP binding
supervisor@rtbrick>SPINE01: op> show ldp binding Instance: default, AFI: ipv4 Prefix In Label Out Label LDP ID Status 198.51.100.1/24 - 3 - Best label:20066 - 198.51.100.3:0 Non-best label:20065 - 198.51.100.2:0 Non-best 198.51.100.11/24 - 3 - Best label:20066 - 198.51.100.3:0 Non-best label:20065 - 198.51.100.2:0 Non-best 198.51.100.41/24 - 3 - Best label:20066 - 198.51.100.3:0 Non-best label:20065 - 198.51.100.2:0 Non-best 198.51.100.44/24 - 3 - Best label:20066 - 198.51.100.3:0 Non-best label:20065 - 198.51.100.2:0 Non-best 198.51.100.47/24 - 3 - Best label:20066 - 198.51.100.3:0 Non-best label:20065 - 198.51.100.2:0 Non-best 198.51.100.2/24 label:3 label:20065 198.51.100.2:0 Best label:20065 - 198.51.100.3:0 Non-best 198.51.100.21/24 label:3 label:20065 198.51.100.2:0 Best label:20065 - 198.51.100.3:0 Non-best 198.51.100.42/24 label:3 label:20065 198.51.100.2:0 Best label:20065 - 198.51.100.3:0 Non-best <...>
Example 2: Summary view of the LDP binding for the specified prefix
supervisor@rtbrick>SPINE01: op> show ldp binding prefix 198.51.100.2/24 Instance: default, AFI: ipv4 Prefix In Label Out Label LDP ID Status 198.51.100.2/24 label:3 label:20065 198.51.100.2:0 Best label:20065 - 198.51.100.3:0 Non-best supervisor@rtbrick>SPINE01: op>
LDP Route
Syntax:
Option | Description |
---|---|
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Without any option, this command displays a summary of LDP route information. |
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Displays LDP route information for the specified instance. |
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Displays LDP route information for the specified address family and instance. Supported AFI values: ipv4, ipv6, and mpls. |
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Displays LDP route information for the specified address family of IPv4 prefix and instance. |
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Displays LDP route information for the specified address family of IPv6 prefix and instance. |
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Displays LDP route information for the specified prefix and instance. |
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Displays LDP route information for the specified MPLS label and instance. |
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Displays LDP route information about MPLS labels. |
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Displays LDP route information for the specified MPLS label and instance. |
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Displays LDP route information for the specified MPLS label. |
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Displays LDP route information about the IPv4 address family. |
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Displays LDP route IPv4 address family information for the specified prefix. |
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Displays LDP route information about the IPv6 address family. |
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Displays LDP route IPv6 address family information for the specified prefix. |
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Displays LDP route information about MPLS labels. |
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Displays LDP route information for the specified MPLS label. |
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Displays LDP route information for the specified prefix address. |
Example: Summary view of the LDP route
supervisor@rtbrick>SPINE01: op> show ldp route Instance: default, AFI: ipv4, SAFI: labeled-unicast Prefix Advertised label Received label Next Hop Interface Metric 198.51.100.1/24 3 - - - - 198.51.100.2/24 20065 - 198.51.100.61 ifl-0/0/0/1 1000000 198.51.100.3/24 20067 20067 198.51.100.61 ifl-0/0/0/1 2000001 198.51.100.11/24 3 - - - - 198.51.100.21/24 20065 - 198.51.100.61 ifl-0/0/0/1 1000000 198.51.100.31/24 20067 20067 198.51.100.61 ifl-0/0/0/1 2000001 198.51.100.41/24 3 - - - - 198.51.100.42/24 20065 - 198.51.100.61 ifl-0/0/0/1 1000000 198.51.100.43/24 20067 20067 198.51.100.61 ifl-0/0/0/1 2000001 198.51.100.44/24 3 - - - - 198.51.100.45/24 20065 - 198.51.100.61 ifl-0/0/0/1 1000000 198.51.100.46/24 20067 20067 198.51.100.61 ifl-0/0/0/1 2000001 198.51.100.47/24 3 - - - - 198.51.100.48/24 20065 - 198.51.100.61 ifl-0/0/0/1 1000000 198.51.100.49/24 20067 20067 198.51.100.61 ifl-0/0/0/1 2000001 <...>
LDP Statistics
Syntax:
Option | Description |
---|---|
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Without any option, the command displays the LDP statistics for all instances. |
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Displays LDP statistics information about the specified instance. |
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Displays LDP statistics information about the specified LDP identifier and instance. |
Example: Summary view of the LDP statistics
supervisor@rtbrick>SPINE01: op> show ldp statistics Instance: default, LDP ID: 198.51.100.2:0 Received messages: Initialization: 1, KeepAlive: 558, Notification: 0 Address: 1, Address Withdraw: 0, Label Mapping: 15 Label Withdraw: 0, Label Release: 0 Sent messages: Initialization: 1, KeepAlive: 558, Notification: 0 Address: 1, Address Withdraw: 0, Label Mapping: 15 Label Withdraw: 0, Label Release: 0 Instance: default, LDP ID: 198.51.100.3:0 Received messages: Initialization: 1, KeepAlive: 557, Notification: 0 Address: 1, Address Withdraw: 0, Label Mapping: 15 Label Withdraw: 0, Label Release: 0 Sent messages: Initialization: 1, KeepAlive: 557, Notification: 0 Address: 1, Address Withdraw: 0, Label Mapping: 15 Label Withdraw: 0, Label Release: 0 supervisor@rtbrick>SPINE01: op>
LDP TCP connection
Syntax:
Option | Description |
---|---|
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Without any option, the command displays the TCP connections used by LDP for all instances. |
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Detailed list view of the TCP connections. |
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Detailed list view of the TCP connections of the specified instance. |
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TCP connections summary of the specified instance. |
Example: Summary view of the LDP TCP connections
supervisor@rtbrick>SPINE01: op> show ldp tcp connection Instance Local IP Remote IP Local port Remote port State default 198.51.100.1 198.51.100.2 646 64718 Established default 198.51.100.1 198.51.100.3 646 64718 Established
LDP Clear Commands
Clear commands allow resetting operational states.
Clear LDP Session
Syntax:
Option | Description |
---|---|
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Clears all the LDP sessions. |
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Sends route refresh to all neighbors to receive FEC bindings. |
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Re-advertises all the routes previously sent to the peers. |
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Clears all the LDP sessions for the specified instance. |
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Sends route refresh to all neighbors to receive FEC bindings for the specified instance. |
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Re-advertises all the routes previously sent to the peers for the specified instance. |
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Clears the LDP session for the specified instance and peer LDP identifier. |
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Sends route refresh to the specific peer to receive FEC bindings for the specified instance and peer ldp-id. |
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Re-advertises all the routes previously sent to the specific peer for the specified instance and peer ldp-id. |
Example: The example below shows how to clear all the LDP sessions.
supervisor@rtbrick>SPINE01: op> clear ldp session all LDP session cleared with instance default supervisor@rtbrick>SPINE01: op>
To access the Operational State API that corresponds to this CLI, click
here.
Clear LDP Statistics
Syntax:
Option | Description |
---|---|
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Clears all the LDP statistics. |
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Clears all the LDP statistics for the specified instance. |
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Clears the LDP statistics for the specified instance and peer LDP identifier. |
Example: The example below shows how to clear all the LDP statistics.
supervisor@rtbrick>SPINE01: op> clear ldp statistics all LDP statistics cleared for instance default supervisor@rtbrick>SPINE01: op>
Clear LDP Neighbor
Syntax:
Option | Description |
---|---|
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Clears all the LDP neighbors. |
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Clears the LDP neighbor for the specified instance. |
Example: The example below shows how to clear all the LDP neighbor.
supervisor@rtbrick>SPINE01: op> clear ldp neighbor all LDP neighbor cleared with instance default supervisor@rtbrick>SPINE01: op>