Monitoring MPLS LSP Statistics
Purpose
Display statistics for LSP sessions currently active on the device, including the total number of packets and bytes forwarded through an LSP.
Action
Select Monitor>MPLS>LSP Statistics in the J-Web user interface, or enter the show mpls lsp statistics command.
 | Statistics are not available for LSPs on the outbound device, because the penultimate device in the LSP sets the label to 0. Also, as the packet arrives at the outbound device, the hardware removes its MPLS header and the packet reverts to being an IPv4 packet. Therefore, it is counted as an IPv4 packet, not an MPLS packet. |
Table 253 summarizes key output fields in the MPLS LSP statistics display.
Table 253: Summary of Key MPLS LSP Statistics Output Fields
Field | Values | Additional Information |
|---|---|---|
Ingress LSP | Information about LSPs on the inbound device. Each session has one line of output. | – |
Egress LSP | Information about the LSPs on the outbound device. Each session has one line of output. | MPLS learns this information by querying RSVP, which holds all the transit and outbound session information. |
Transit LSP | Number of LSPs on the transit routers and the state of these paths. | MPLS learns this information by querying RSVP, which holds all the transit and outbound session information. |
To | Destination (outbound device) of the session. | – |
From | Source (inbound device) of the session. | – |
State | State of the path: Up, Down, or AdminDn. | AdminDn indicates that the LSP is being taken down gracefully. |
Packets | Total number of packets received on the LSP from the upstream neighbor. | – |
Bytes | Total number of bytes received on the LSP from the upstream neighbor. | – |
LSPname | Configured name of the LSP. | – |
Total | Total number of LSPs displayed for the particular type—ingress (inbound), egress (outbound), or transit. | – |