VPLS on a PE Router Configuration Overview
Many configuration procedures for VPLS are identical to the procedures for Layer 2 and Layer 3 virtual private networks (VPNs), as described in Configuring Virtual Private Networks.
Before You Begin |
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For background information, read Understanding VPLS. |
To prepare a provider edge (PE) router for VPLS, you must first configure the router to distribute routing information to other PE routers in the VPLS and configure the circuits between the PE routers. The interior BGP (IBGP), MPLS, OSPF, and RSVP protocols are the basis for most Layer 2 VPN-related applications including VPLS.
On the PE router interface facing the customer edge (CE) device, you must specify a VPLS encapsulation type. The type of encapsulation depends on the interface type. Create the VPLS routing instance and add the interface. Specify the site range, ID number, and name for the VPLS routing instance.
Each routing instance that you configure on a PE router must have a unique route distinguisher associated with it. VPN routing instances need a route distinguisher to help BGP identify overlapping network layer reachability information (NLRI) messages from different VPNs.
You can use either J-Web or the CLI configuration editor to configure VPLS on a PE router.
Sample VPLS Topology
Figure 92 shows the overview of a basic VPLS topology for the sample configurations in this chapter.
Figure 92: Basic VPLS Topology
In this sample, the PE routers use the same autonomous system (AS). Within the AS, routing information is communicated through an interior gateway protocol (IGP). Outside the AS, routing information is shared with other ASs through BGP. The PE routers must use the same signaling protocols to communicate.
On the CE device interface that faces the PE router, you must specify inet (for IPv4), and include the IP address.
Related Topics
- Configuring Routing Options on the VPLS PE Router
- Configuring Routing Interfaces on the VPLS PE Router
- Configuring MPLS on the VPLS PE Router
- Configuring RSVP on the VPLS PE Router
- Configuring BGP on the VPLS PE Router
- Configuring OSPF on the VPLS PE Router
- Configuring the Interface to the CE Device
- Configuring the VPLS Routing Instance
- Configuring an Ethernet Switch as the CE Device