Configuring a BGP PW
To configure a BGP PW, perform the following configurations on PEs:
Configure BGP to advertise VPLS label block information.
Create a BGP PW.
Configuring BGP to advertise VPLS label block information
Step | Command | Remarks |
|---|---|---|
1. Enter system view. | system-view | N/A |
2. Enable BGP and enter BGP view. | bgp as-number | By default, BGP is not enabled. |
3. Configure the remote PE as a BGP peer. | peer { group-name | ip-address } as-number as-number | By default, no BGP peer is configured. |
4. Create a BGP L2VPN address family and enter BGP L2VPN address family view. | address-family l2vpn | By default, no BGP L2VPN address family is created. |
5. Enable BGP to exchange L2VPN information with the specified peer or peer group. | peer { group-name | ip-address } enable | By default, BGP cannot exchange L2VPN information with any peer or peer group. |
6. Enable BGP to exchange label block information with the specified peer or peer group. | peer { group-name | ip-address } signaling | By default, BGP can exchange label block information with a BGP L2VPN peer or peer group. |
7. (Optional.) Permit the local AS number to appear in routes from the specified peer or peer group and specify the appearance times. | peer { group-name | ip-address } allow-as-loop [ number ] | By default, the local AS number is not allowed in routes from a peer or peer group. |
8. (Optional.) Enable route target-based filtering of incoming BGP L2VPN information. | policy vpn-target | By default, route target-based filtering of incoming BGP L2VPN information is enabled. |
9. (Optional.) Configure the router as a route reflector and specify a peer or peer group as its client. | peer { group-name | ip-address } reflect-client | By default, no route reflector or client is configured. |
10. (Optional.) Enable L2VPN information reflection between clients. | reflect between-clients | By default, L2VPN information reflection is enabled between clients. |
11. (Optional.) Configure the cluster ID of the route reflector. | reflector cluster-id { cluster-id | ip-address } | By default, a route reflector uses its own router ID as the cluster ID. |
12. (Optional.) Configure the filtering of reflected L2VPN information. | rr-filter extended-community-number | By default, the route reflector does not filter reflected L2VPN information. |
13. (Optional.) Return to user view. | return | N/A |
14. (Optional.) Soft-reset L2VPN BGP sessions. | refresh bgp { ip-address | all | external | group group-name | internal } { export | import } l2vpn | N/A |
15. (Optional.) Reset L2VPN BGP sessions. | reset bgp { as-number | ip-address | all | external | group group-name | internal } l2vpn | N/A |
For more information about the peer as-number, peer enable, peer allow-as-loop, peer reflect-client, reflect between-clients, reflector cluster-id, refresh bgp, and reset bgp commands, see Layer 3—IP Routing Command Reference.
Creating a BGP PW
Step | Command | Remarks |
|---|---|---|
1. Enter system view. | system-view | N/A |
2. Enter VSI view. | vsi vsi-name | N/A |
3. Configure the VSI to automatically discover neighbors through BGP and enter auto-discovery VSI view. | auto-discovery bgp | By default, a VSI does not automatically discover neighbors through BGP. |
4. Configure an RD for the auto-discovery VSI. | route-distinguisher route-distinguisher | By default, no RD is configured for the auto-discovery VSI. |
5. Configure route targets for the auto-discovery VSI. | vpn-target vpn-target&<1-8> [ both | export-extcommunity | import-extcommunity ] | By default, no route targets are configured for the auto-discovery VSI. |
6. (Optional.) Reference a PW class. | pw-class class-name | By default, no PW class is referenced. |
7. (Optional.) Reference a tunnel policy. | tunnel-policy tunnel-policy-name | By default, no tunnel policy is referenced. |
8. Use BGP to create a PW to an automatically discovered remote PE and enter auto-discovery VSI BGP signaling view. | signaling-protocol bgp | By default, no signaling protocol is specified. |
9. Create a local site and enter site view. | site site-id [ range range-value ] [ default-offset default-offset ] | By default, no local site is created. |