MPLS-TP
MPLS-TP tests transport MPLS tunnels, including working and protection paths. It defines tunnel identifiers, forward and reverse labels, the protection type, and the association with OAM.
Table 212 — MPLS-TP Parameters
| Name | Description | Value |
|---|---|---|
| Instance ID | MPLS-TP instance identifier | Specify a unique number |
| Name | Tunnel name | Use a descriptive name for result analysis |
| Direction | LSP direction type | For example, co-routed for coordinated forward and reverse paths |
| Global ID / Node ID | Local node identifiers | Set according to the testbed design |
| Tunnel num / LSP num | Local tunnel and LSP numbers | Used to identify the LSP |
| Remote Global ID / Remote Node ID | Remote-node identifiers | Must match the remote end |
| Remote tunnel num / Remote LSP num | Remote tunnel and LSP numbers | Used for the endpoint pair |
| Working forward label | Working forward-path label | Specify the label for the primary path |
| Working reverse label | Working reverse-path label | Specify the reverse-path label |
| Working EXP / TTL | MPLS header parameters for the working path | Configure as required |
| Protection forward/reverse label | Protection-path labels | Set when testing protection |
| Protection type | Protection type | none or the type used in the testbed |
| Revertive | Return to the working path after recovery | Enable for revertive scenarios |
| WTR time | Wait-to-Restore timer | 300 seconds by default |
| Hold-off time | Delay before protection switching | 0 by default |
| PSC interval | Protection State Coordination interval | 5 seconds by default |
| Network interface | Working interface | Select the primary-path interface |
| Protection interface | Protection-path interface | Select when a backup path is available |
| OAM instance ID | Associated MPLS OAM instance | Specify OAM when LSP state must be tested |
Configure MPLS-TP together with MPLS OAM whenever possible: OAM reports LSP availability, while MPLS-TP defines the working and protection paths. When analyzing results, check the LSP state, protection events, and switching delays.