The display mpls ldp lsp command displays information about an LDP label switched path (LSP).
display mpls ldp lsp [ destination-address mask-length ] [ peer peer-id ]
display mpls ldp lsp [ all ] [ peer peer-id ]
display mpls ldp lsp inbound-policy
| Parameter | Description | Value |
|---|---|---|
| destination-address | Specifies the destination IPv4 address of an LDP LSP. | - |
| mask-length | Specifies the mask length of the specified destination IPv4 address. | An integer ranging from 0 to 32 |
| peer peer-id | Specifies the peer ID. | - |
| all | Displays information about all LDP LSPs. | - |
| inbound-policy | Displays information about the LSPs that have passed an inbound policy, in addition to information about the LSPs that are established without applying the inbound policy. | - |
After establishing LSPs through LDP, run the display mpls ldp lsp command to view the number of the LSPs that pass through each device and their detailed information.
By configuring the parameter inbound-policy, view information about LDP LSPs that have passed the inbound policy. If no inbound policy is configured, information about all LDP LSPs is displayed.
# Display information about LSPs.
<sysname> display mpls ldp lsp
LDP LSP Information ------------------------------------------------------------------------------- DestAddress/Mask In/OutLabel UpstreamPeer NextHop OutInterface ------------------------------------------------------------------------------- 1.1.1.1/32 3/NULL 3.3.3.3 10.10.0.1 InLoop0 1.1.1.1/32 3/NULL 2.2.2.2 10.10.0.1 InLoop0 *1.1.1.1/32 Liberal/1026 DS/3.3.3.3 *1.1.1.1/32 Liberal/1025 DS/2.2.2.2 2.2.2.2/32 NULL/3 - 10.11.11.2 Eth0/0/0 2.2.2.2/32 1025/3 2.2.2.2 10.11.11.2 Eth0/0/0 2.2.2.2/32 1025/3 3.3.3.3 10.11.11.2 Eth0/0/0 *2.2.2.2/32 Liberal/1024 DS/3.3.3.3 3.3.3.3/32 NULL/3 - 33.33.33.3 Eth0/0/1 3.3.3.3/32 1024/3 3.3.3.3 33.33.33.3 Eth0/0/1 3.3.3.3/32 1024/3 2.2.2.2 33.33.33.3 Eth0/0/1 *3.3.3.3/32 Liberal/1024 DS/2.2.2.2 *10.11.11.0/24 Liberal/1025 DS/3.3.3.3 *10.11.11.0/24 Liberal/3 DS/2.2.2.2 10.22.22.0/24 1026/3 2.2.2.2 10.11.11.2 Eth0/0/0 10.22.22.0/24 1026/3 3.3.3.3 10.11.11.2 Eth0/0/0 *192.168.1.0/24 Liberal/3 DS/2.2.2.2 ------------------------------------------------------------------------------- TOTAL: 10 Normal LSP(s) Found. TOTAL: 7 Liberal LSP(s) Found. TOTAL: 0 Frr LSP(s) Found. A '*' before an LSP means the LSP is not established A '*' before a Label means the USCB or DSCB is stale A '*' before a UpstreamPeer means the session is in GR state A '*' before a DS means the session is in GR state A '*' before a NextHop means the LSP is FRR LSP
Item |
Description |
|---|---|
DestAddress/Mask |
Destination address and mask of an LSP An asterisk (*) before DestAddress/Mask indicates that the LSP is not established. |
In/OutLabel |
Values of the incoming and outgoing labels An asterisk (*) before In/OutLabel indicates that the LSP is in the Stale state and needs to be restored. |
UpstreamPeer |
Upstream peer of an LSP An asterisk (*) before UpstreamPeer indicates that the session is in the GR state. |
NextHop |
Next-hop IP address An asterisk (*) before NextHop indicates that the LSP is a backup LSP. DS is short for DownStream. The address next to DS/ is the LSR ID of a downstream peer. The next hop of a Liberal LSP is in this format. |
OutInterface |
Name of an outgoing interface |
Normal LSP |
Normal LSP |
Liberal LSP |
Liberal LSP |
Frr LSP |
Frr LSP |
USCB |
Upstream control block |
DSCB |
Downstream control block |