Configuring a Tunnel Policy for the Backbone Network of a BGP/MPLS IPv6 VPN

A tunnel policy applied to an IPv6 VPN can specify 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, CR-LSPs, and local IFNET tunnels for IPv6 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 IPv6 VPN.

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

Select-sequence: Using this policy, you can specify the sequence in which tunnels are selected or the number of tunnels participating in load balancing.
Tunnel binding: 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 IPv6 VPN, complete the following tasks:

Configure a basic BGP/MPLS IPv6 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 an IPv6 VPN: This section describes how to apply a tunnel policy to an IPv6 VPN to change the tunnel used to carry VPN services or the tunnel selection sequence for VPN services.

Verifying the Configuration of a Tunnel Policy for the Backbone Network of a BGP/MPLS IPv6 VPN: After configuring a tunnel policy for the backbone network of a BGP/MPLS IPv6 VPN, check the name of the tunnel policy applied to the VPN and the configurations of the tunnel policy.