Configuring VPWS Accessing VPLS

Usage Scenario

As shown in Figure 1, when UPEs do not support VPLS, you can configure VPWS on UPEs and VPLS on SPEs to implement end-to-end service bearing. From the perspective of an SPE, a VPWS or VPLS PW established statically or established using LDP from the SPE to a UPE is a spoke VPLS PW that does not follow the split horizon rule. From the perspective of a UPE, a PW established from itself to an SPE is a VPWS LDP PW. Similarly, in a common VPLS scenario, if PEs do not support VPLS, you can configure VPWS accessing VPLS on the PEs. For details, see VPWS Accessing VPLS.

Figure 1 Typical HVPLS networking for VPWS accessing VPLS

Pre-configuration Tasks

Before configuring VPWS accessing VPLS, complete the following tasks:

• Configure IP addresses and IGP routes on UPEs, SPEs, and Ps.

• Configure LSR IDs and enable MPLS and MPLS LDP on UPEs, SPEs, and Ps.

• Enable MPLS L2VPN on UPEs and SPEs.

• Establish tunnels between SPEs and between UPEs and SPEs for data transmission.

  

  Configure a remote LDP session if SPEs are not directly connected or if a UPE and an SPE are not directly connected.