Configuring a Routing Policy to Control Label Distribution

Configure a routing policy to control MPLS label allocation for each IPv4 route. The ASBR only allocates label to the routes that match the rules in the policy. The routing policy used for peer ASBR needs to be configured on PE and ABR.

Procedure

Perform the following steps on PEs:
1. Run system-view
  The system view is displayed.
2. Run route-policy policy-name1 permit node seq-number
  The routing policy is configured.
3. Run apply mpls-label
  New labels are allocated to matched IPv4 routes.
4. Run quit
  Return to the system view.
5. Run bgp as-number
  The BGP view is displayed.
6. Run ipv4-family unicast
  The unicast IPv4 address family view is displayed.
7. Run peer ipv4-address route-policy route-policy-name1 export
  The route policy applicable to a peer is applied.
8. Run peer ipv4-address label-route-capability
  The capability to exchange labeled IPv4 routes with the local ABR is configured.
9. Run commit
  The configuration is committed.
Perform the following steps on an ABR:
1. Run system-view
  The system view is displayed.
2. Run route-policy policy-name1 permit node seq-number
  The routing policy is configured.
3. Run apply mpls-label
  New labels are allocated to matched IPv4 routes.
4. Run quit
  The system view is displayed.
5. Run bgp as-number
  The BGP view is displayed.
6. Run ipv4-family unicast
  The unicast IPv4 address family view is displayed.
7. Run peer ipv4-address route-policy route-policy-name1 export
  The route policy applicable to a peer is applied.
8. Run peer ipv4-address label-route-capability
  The capability to exchange labeled IPv4 routes with the local PE and ASBR is configured.
9. Run commit
  The configuration is committed.
Perform the following steps on an ASBR:
1. Run system-view
  The system view is displayed.
2. Run route-policy policy-name1 permit node seq-number
  The routing policy used for peer ASBR is configured.
3. Run apply mpls-label
  New labels are allocated to matched IPv4 routes.
4. Run quit
  Return to the system view.
5. Run route-policy policy-name2 permit node seq-number
  The routing policy used for peers is configured.
6. Run if-match mpls-label
  A filter rule is configured to match IPv4 routes with labels.
7. Run apply mpls-label
  New labels are allocated to matched IPv4 routes.
8. Run quit
  Return to the system view.
9. Run bgp as-number
  The BGP view is displayed.
10. Run ipv4-family unicast
  The unicast IPv4 address family view is displayed.
11. Run peer ipv4-address route-policy route-policy-name1 export
  The route policy applicable to a peer is applied.
12. Run peer ipv4-address label-route-capability
  The capability to exchange labeled IPv4 routes with peers is configured.
13. Run peer ipv4-address route-policy route-policy-name2 export
  The route policy applicable to a peer is applied.
14. Run peer ipv4-address label-route-capability
  The capability to exchange labeled IPv4 routes with peers is configured.
15. Run commit
  The configuration is committed.