Preferred tunnel configuration example

PE 1 has multiple tunnels to reach PE 2: one MPLS TE tunnel on the interface Tunnel 1, and one LDP LSP tunnel.

Two MPLS VPN instances, vpna and vpnb, exist on PE 1. Configure PE 1 to use the MPLS TE tunnel to forward traffic for both VPNs.

1. Create a tunnel policy named preferredte1, and configure tunnel 1 as the preferred tunnel:

   <PE1> system-view
   [PE1] tunnel-policy preferredte1
   [PE1-tunnel-policy-preferredte1] preferred-path tunnel 1
   [PE1-tunnel-policy-preferredte1] quit
   

2. Configure MPLS VPN instances and apply the tunnel policy to the VPN instances:

   # Create MPLS VPN instance vpna, and apply tunnel policy preferredte1 to it.

   [PE1] ip vpn-instance vpna
   [PE1-vpn-instance-vpna] route-distinguisher 100:1
   [PE1-vpn-instance-vpna] vpn-target 100:1
   [PE1-vpn-instance-vpna] tnl-policy preferredte1
   [PE1-vpn-instance-vpna] quit
   

   # Create MPLS VPN instance vpnb, and apply tunnel policy preferredte1 to it.

   [PE1] ip vpn-instance vpnb
   [PE1-vpn-instance-vpnb] route-distinguisher 100:2
   [PE1-vpn-instance-vpnb] vpn-target 100:2
   [PE1-vpn-instance-vpnb] tnl-policy preferredte1