Configuring VPNs

Layer 2 virtual private networks (VPNs), Layer 3 VPNs, virtual-router routing instances, and virtual private LAN service (VPLS) use a common infrastructure within Junos and common configuration procedures. This chapter describes the common configuration steps. Complete these configuration steps, regardless of which type of VPN you are configuring, before proceeding to the more specific configuration steps described in other chapters.

This chapter describes the general procedures required to configure Layer 2 VPNs, Layer 3 VPNs, virtual-router routing instances, and VPLS, discussing the following topics:

• Configuring the Signaling Protocol on PE Routers in VPNs
• Configuring an IGP on the PE and P Routers
• Configuring IBGP Sessions Between PE Routers in VPNs
• Configuring Routing Instances on PE Routers in VPNs
• Configuring Policies for the VRF Table on PE Routers in VPNs
• Configuring BGP Route Target Filtering in VPNs
• Configuring Virtual-Router Routing Instances in VPNs
• Configuring Graceful Restart for VPNs
• Configuring Redundant Pseudowires for Layer 2 Circuits and VPLS
• Configuring BFD for VCCV for Layer 2 VPNs, Layer 2 Circuits, and VPLS
• Configuring Aggregate Labels for VPNs
• Rewriting Markers and VPNs
• Transmitting Nonstandard BPDUs
• Pinging VPNs, VPLS, and Layer 2 Circuits
• Pinging a Layer 2 VPN
• Pinging a Layer 3 VPN
• Pinging a Layer 2 Circuit
• Setting the Forwarding Class of the Ping Packets
• Pinging a VPLS Routing Instance
• Configuring Path MTU Checks for VPNs
• Enabling Unicast Reverse-Path Forwarding Check for VPNs