Enabling the Capability of Exchanging Labeled IPv4 Routes

To establish an inter-AS BGP LSP, you must enable ASBRs to exchange labeled IPv4 routes.

Procedure

Create a route-policy.
Perform the following steps on each ASBR:
1. Run system-view
  The system view is displayed.
2. Run route-policy route-policy-name permit node seq-number
  The route-policy used to advertise routes to the remote ASBR is configured.
3. Run apply mpls-label
  Labels for IPv4 routes are allocated.
4. Run quit
  Return to the system view.
5. Run commit
  The configuration is committed.
Apply the route-policy.
Perform the following steps on each ASBR:
1. Run system-view
  The system view is displayed.
2. Run bgp as-number
  The BGP view is displayed.
3. Run peer ipv4-address route-policy route-policy-name export
  The route-policy used to advertise routes to the remote ASBR is applied.
4. Run quit
  Return to the system view.
5. Run commit
  The configuration is committed.
Enable the function to exchange labeled IPv4 routes.
Perform the following steps on each ASBR:
1. Run system-view
  The system view is displayed.
2. Run interface interface-type interface-number
  The view of the interface connected to the peer ASBR is displayed.
3. Run mpls
  The MPLS capability is enabled.
4. Run commit
  The configuration is committed.
5. Run quit
  Return to the system view.
6. Run bgp as-number
  The BGP view is displayed.
7. Run peer ipv4-address label-route-capability
  The labeled IPv4 route exchange capability with the remote ASBR is configured.
8. Run quit
  Return to the system view.
9. Run commit
  The configuration is committed.