Setting a Binding SID

Using binding SIDs reduces the number of labels in a label stack on an NE, which helps build a large-scale network.

Context

To reduce the number of label stack layers encapsulated by an NE, a binding SID needs to be used. A binding SID can represent the label stack of an intra-AS SR-MPLS TE tunnel. After binding SIDs and BGP peer SIDs are orchestrated properly, E2E SR-MPLS TE LSPs can be established.

An SR-MPLS TE tunnel is unidirectional. In the following operations, the binding SID is set for the unidirectional SR-MPLS TE tunnel only within an AS domain.

To set a binding SID of a reverse SR-MPLS TE tunnel, perform the configuration on the ingress of the reverse tunnel.
To set a binding SID of an SR-MPLS TE tunnel in another AS domain, perform the configuration on the ingress of the specific AS domain.

Procedure

Run system-view
The system view is displayed.
Run interface tunnel tunnel-number
The intra-AS SR-MPLS TE tunnel interface view is displayed.
Run mpls te binding-sid label label-value
A binding SID is specified for the intra-AS SR-MPLS TE tunnel.
Run commit
The configuration is committed.