Configuring a Tunnel Interface on the Ingress

Procedure

1. Run system-view

   The system view is displayed.

2. Run interface tunnel interface-number

   A tunnel interface is created, and the tunnel interface view is displayed.

3. To configure an IP address for the tunnel interface, run either of the following commands:

   • To assign an IP address to the tunnel interface, run ip address ip-address { mask | mask-length } [ sub ]

     The primary IP address must be configured prior to the secondary IP address for the tunnel interface.

   • To configure the tunnel interface to borrow the IP address of another interface, run ip address unnumbered interface interface-type interface-number

   Although an IP address on a tunnel interface enables an MPLS TE tunnel to forward traffic, the MPLS TE tunnel does not need to be assigned a separate IP address because it is unidirectional. Therefore, a tunnel interface usually borrows a loopback address, which is used as the LSR ID of the ingress.

4. Run tunnel-protocol mpls te

   MPLS TE is configured as a tunnel protocol.

5. Run destination ip-address

   The destination address is configured for the tunnel. It is usually the LSR ID of the egress.

   Various types of tunnels have different requirements for destination addresses. If a tunnel protocol is changed to MPLS TE, the destination address configured using the destination command is automatically deleted and needs to be reconfigured.

6. Run mpls te tunnel-id tunnel-id

   The tunnel ID is configured.

7. Run mpls te signal-protocol cr-static

   Static CR-LSP signaling is configured.

8. Run mpls te bidirectional

   The bidirectional LSP attribute is configured.

9. Run commit

   The configuration is committed.