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Configuring SBFD for SR-MPLS TE LSP
Configuring SBFD for SR-MPLS TE LSP
This section describes how to configure SBFD to detect SR-MPLS TE LSP faults.
Usage Scenario
If SBFD for SR-MPLS TE LSP detects a fault on the primary LSP, traffic is rapidly switched to the backup LSP, which minimizes the impact on traffic.
This function is supported only when the card interoperability mode is enhanced.
Pre-configuration Tasks
Before configuring SBFD for SR-MPLS TE LSP, complete the following task:
Configure an SR-MPLS TE tunnel.
Set each LSR ID using the mpls lsr-idlsr-id command. Ensure that the route to the local lsr-id is reachable.
Procedure
Configure an SBFD initiator.
Run system-view
The system view is displayed.
Run bfd
BFD is enabled globally.
You can set BFD parameters only after running the bfd command to enable global BFD.
Run quit
Return to the system view.
Run sbfd
SBFD is enabled globally.
Run quit
Return to the system view.
Run interface tunneltunnel-number
The SR-MPLS TE tunnel interface view is displayed.
Run mpls te bfd enableseamless
SBFD for SR-MPLS TE LSP is enabled.
After the configuration is complete, the SBFD initiator automatically establishes an SBFD session destined for the destination IP address of an SR-MPLS TE tunnel.
Run commit
The configuration is committed.
Configure the SBFD reflector.
Run system-view
The system view is displayed.
Run bfd
BFD is enabled globally.
You can set BFD parameters only after running the bfd command to enable global BFD.
Run quit
Return to the system view.
Run sbfd
SBFD is enabled globally.
Run reflector discriminator { unsigned-integer-value | ip-address-value }
The discriminator of an SBFD reflector is configured.
Run commit
The configuration is committed.
Verifying the Configuration
After you configure SBFD for SR-MPLS TE LSP, run the display bfd session { all | discriminatordiscr-value } [ verbose ] command to check information about the SBFD session that monitors an SR-MPLS TE tunnel.
