Configuring routing between an MCE and a PE
MCE-PE routing configuration includes these tasks:
Binding the MCE-PE interfaces to VPN instances.
Performing route configurations.
Redistributing VPN routes into the routing protocol running between the MCE and the PE.
Perform the following configurations on the MCE. Configure the PE in the same way that you configure a PE in a basic MPLS L3VPN. For more information about configuring the PE, see "Configuring MPLS L3VPN."
Configuring static routing between an MCE and a PE
Step | Command | Remarks |
|---|---|---|
1. Enter system view. | system-view | N/A |
2. Configure a static route for a VPN instance. | ip route-static vpn-instance s-vpn-instance-name dest-address { mask-length | mask } { interface-type interface-number [ next-hop-address ] | next-hop-address [ public ] [ track track-entry-number ] | vpn-instance d-vpn-instance-name next-hop-address [ track track-entry-number ] } [ permanent ] [ preference preference ] [ tag tag-value ] [ description text ] | By default, no static routes are configured. |
3. (Optional.) Set the default preference for static routes. | ip route-static default-preference default-preference | The default preference is 60. |
Configuring RIP between an MCE and a PE
Step | Command | Remarks |
|---|---|---|
1. Enter system view. | system-view | N/A |
2. Create a RIP process for a VPN instance and enter RIP view. | rip [ process-id ] vpn-instance vpn-instance-name | N/A |
3. Enable RIP on the interface attached to the specified network. | network network-address | By default, RIP is disabled on an interface. |
4. Redistribute the VPN routes. | import-route protocol [ process-id | all-processes | allow-ibgp ] [ allow-direct | cost cost-value | route-policy route-policy-name | tag tag ] * | By default, no routes are redistributed into RIP. |
Configuring OSPF between an MCE and a PE
Step | Command | Remarks |
|---|---|---|
1. Enter system view. | system-view | N/A |
2. Create an OSPF process for a VPN instance and enter OSPF view. | ospf [ process-id | router-id router-id | vpn-instance vpn-instance-name ] * | N/A |
3. Disable routing loop detection. | vpn-instance-capability simple | By default, routing loop detection is enabled. You must disable routing loop detection for a VPN OSPF process on the MCE. Otherwise, the MCE does not receive OSPF routes from the PE. |
4. Redistribute the VPN routes. | import-route protocol [ process-id | all-processes | allow-ibgp ] [ allow-direct | cost cost-value | nssa-only | route-policy route-policy-name | tag tag | type type ] * | By default, no routes are redistributed into OSPF. |
5. Create an OSPF area and enter OSPF area view. | area area-id | By default, no OSPF areas exist. |
6. Enable OSPF on the interface attached to the specified network in the area. | network ip-address wildcard-mask | By default, an interface neither belongs to any area nor runs OSPF. |
Configuring IS-IS between an MCE and a PE
Step | Command | Remarks |
|---|---|---|
1. Enter system view. | system-view | N/A |
2. Create an IS-IS process for a VPN instance and enter IS-IS view. | isis [ process-id ] vpn-instance vpn-instance-name | N/A |
3. Configure a network entity title. | network-entity net | By default, no NET is configured. |
4. Create the IS-IS IPv4 unicast address family and enter its view. | address-family ipv4 [ unicast ] | By default, the IS-IS IPv4 unicast address family is not created. |
5. Redistribute VPN routes. | import-route protocol [ process-id | all-processes | allow-ibgp ] [ allow-direct | cost cost-value | cost-type { external | internal } | [ level-1 | level-1-2 | level-2 ] | route-policy route-policy-name | tag tag ] * | By default, IS-IS does not redistribute routes from any other routing protocol. If you do not specify the route level in the command, the command redistributes routes to the level-2 routing table by default. |
6. Return to system view. | quit | N/A |
7. Enter interface view. | interface interface-type interface-number | N/A |
8. Enable the IS-IS process on the interface. | isis enable [ process-id ] | By default, no IS-IS process is enabled on the interface. |
Configuring EBGP between an MCE and a PE
Step | Command | Remarks |
|---|---|---|
1. Enter system view. | system-view | N/A |
2. Enter BGP instance view. | bgp as-number [ instance instance-name ] [ multi-session-thread ] | By default, BGP is not enabled. |
3. Enter BGP-VPN instance view. | ip vpn-instance vpn-instance-name | N/A |
4. Configure the PE as an EBGP peer. | peer { group-name | ipv4-address [ mask-length ] } as-number as-number | By default, no BGP peers or peer groups exist. |
5. Enter BGP-VPN IPv4 unicast address family view. | address-family ipv4 [ unicast ] | N/A |
6. Enable BGP to exchange IPv4 unicast routes with the peer. | peer { group-name | ipv4-address [ mask-length ] } enable | By default, BGP does not exchange IPv4 unicast routes with any peer. |
7. Redistribute the VPN routes of the VPN site. | import-route protocol [ process-id | all-processes ] [ allow-direct | med med-value | route-policy route-policy-name ] * | By default, no routes are redistributed into BGP. |
Configuring IBGP between an MCE and a PE
Step | Command | Remarks |
|---|---|---|
1. Enter system view. | system-view | N/A |
2. Enter BGP instance view. | bgp as-number [ instance instance-name ] [ multi-session-thread ] | By default, BGP is not enabled. |
3. Enter BGP-VPN instance view. | ip vpn-instance vpn-instance-name | N/A |
4. Configure the PE as an IBGP peer. | peer { group-name | ipv4-address [ mask-length ] } as-number as-number | By default, no BGP peers or peer groups exist. |
5. Enter BGP-VPN IPv4 unicast address family view. | address-family ipv4 [ unicast ] | N/A |
6. Enable BGP to exchange IPv4 unicast routes with the peer. | peer { group-name | ipv4-address [ mask-length ] } enable | By default, BGP does not exchange IPv4 unicast routes with any peer. |
7. Redistribute the VPN routes of the VPN site. | import-route protocol [ process-id | all-processes ] [ allow-direct | med med-value | route-policy route-policy-name ] * | By default, no routes are redistributed into BGP. |