Configuring a Tunnel Policy for the Backbone Network of a BGP/MPLS IP VPN

A tunnel policy applied to a VPN can specify the sequence in which tunnels are selected for the VPN and enable load balancing among tunnels.

Usage Scenario

By default, the system selects a tunnel in the order of LSPs, MPLS TE tunnels, and Local_IfNet for VPN services, and does not perform load balancing. To configure load balancing or change the selection sequence of tunnels, configure a tunnel policy and apply it to the VPN.

At present, the NetEngine 8000 F supports the following types of tunnel policies:

Tunnel type prioritizing policy: The sequence in which tunnels are selected or the number of tunnels participating in load balancing can be specified.
Tunnel binding policy: A TE tunnel is bound to a specified destination IP address. This allows the VPN traffic destined for that destination address to be transmitted over the TE tunnel.

For details about tunnel policy configurations, see VPN Tunnel Management Configuration.

Pre-configuration Tasks

Before configuring a tunnel policy for the backbone network of a BGP/MPLS IP VPN, complete the following tasks:

Configure a basic BGP/MPLS IP VPN.
Set up a tunnel of the type specified in the tunnel policy.

Configuring a Tunnel Policy: A tunnel policy can determine the sequence in which tunnels are selected or bind a TE tunnel to a specified destination IP address.

Applying a Tunnel Policy to a VPN: This section describes how to apply a tunnel policy to a VPN to change the tunnel used to carry VPN services or the sequence in which tunnels are selected for VPN services.

Verifying the Tunnel Policy Configuration: After configuring a tunnel policy for the backbone network of a BGP/MPLS IP VPN, check the name of and configurations of the tunnel policy.