Configuring a VPWS to Access the Public Network or an L3VPN

This section describes how to configure a VPWS to access the public network or an L3VPN. To achieve this, you can deploy a VPWS on the access network.

Usage Scenario

On the network shown in Figure 1, to enable a user to access the public network or an MPLS L3VPN through an MPLS L2VPN, deploy a VPWS on the access network.

Figure 1 Configuring a VPWS to access an L3VPN

Pre-configuration Tasks

Before configuring a VPWS to access an L3VPN, complete the following tasks:

Connect interfaces and configure their physical parameters for these interfaces to go Up at the physical layer.
Enable an IGP on the MPLS access network for IP connectivity.
Enable MPLS L2VPN on UPEs and NPEs.
Create L2VPN tunnels between UPEs and NPEs.
For LDP PWs: create LDP sessions between UPEs and NPEs.
For BGP PWs: create BGP sessions between UPEs and NPEs.
Create remote LDP sessions if NPEs and UPEs are not directly connected.
Enable an IGP on the MPLS bearer network for IP connectivity.
Configure basic L3VPN functions on NPEs.

Creating VE Interfaces: This part describes how to configure an L2VE interface that terminates the L2VPN and configure an L3VE interface that access L3VPN, and how to bind the VE interfaces to the relevant VE-Group.

Creating an L2VE Interface: This section describes how to configure an L2VE interface to terminate an L2VPN and how to bind the L2VE interface to a VE-Group.

Creating an L3VE Interface: This section describes how to configure an L3VE interface to access an L3VPN and how to bind the L3VE interface to a VE-Group.

(Optional) Configuring the MAC Addresses of the L2VE Interface and the L3VE Interface: If the MAC address of the L2VE interface or the L3VE interface is the same as that of other interface, you can configure a new MAC address for the L2VE interface or the L3VE interface.

Associating an L2VE Interface with a VPWS: This section describes how to associate an L2VE interface with a VPWS.

(Optional) Configuring PW APS: This section describes how to configure PW APS, so that an active/standby PW switchover can be performed if a PW fails.

Configuring the Access to the Public Network or L3VPN: The configuration of an L3VE interface that accesses the public network or MPLS L3VPN varies with the networking environments.

Verifying the Configuration of a VPWS to Access the Public Network or an L3VPN: After configuring a VPWS to access the public network or L3VPN, check the binding relationship between VE interfaces and the VE-Group, and information about the VPWS.