Table of Contents
Advertisement
Preferred tunnel and tunnel selection order configuration
example
Network requirements
PE 1 has multiple tunnels to reach PE 2: two MPLS TE tunnels on interfaces Tunnel 1 and Tunnel 3,
one GRE tunnel on interface Tunnel 2, and one LDP LSP tunnel.
PE 1 has multiple MPLS VPN instances: vpna, vpnb, vpnc, vpnd, vpne, vpnf, and vpng.
shows the tunnel policy that PE 1 uses for each VPN instance.
Table 11 Tunnel policies used for VPN instances
VPN instance
vpna, vpnb
vpnc, vpnd
vpne, vpnf
vpng
Configuration procedure
1.
Configure tunnel policies on PE 1:
# Create tunnel policy 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
# Create tunnel policy preferredte3, and configure tunnel 3 as the preferred tunnel.
[PE1] tunnel-policy preferredte3
[PE1-tunnel-policy-preferredte3] preferred-path tunnel 3
[PE1-tunnel-policy-preferredte3] quit
# Create tunnel policy preferredgre2, and configure tunnel 2 as the preferred tunnel.
[PE1] tunnel-policy preferredgre2
[PE1-tunnel-policy-preferredgre2] preferred-path tunnel 2
[PE1-tunnel-policy-preferredgre2] quit
# Create tunnel policy select-lsp.
[PE1] tunnel-policy select-lsp
# Configure the policy to select only one tunnel in LDP LSP-GRE-MPLS TE order.
[PE1-tunnel-policy-select-lsp] select-seq lsp gre cr-lsp load-balance-number 1
[PE1-tunnel-policy-select-lsp] quit
2.
Configure MPLS VPN instances and apply tunnel policies to the VPN instances:
# Create MPLS VPN instances vpna and vpnb, and apply tunnel policy preferredte1 to them.
[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
[PE1] ip vpn-instance vpnb
[PE1-vpn-instance-vpnb] route-distinguisher 100:2
Tunnel policy
Use MPLS TE tunnel Tunnel1 as the preferred tunnel.
Use MPLS TE tunnel Tunnel3 as the preferred tunnel.
Use GRE tunnel Tunnel2 as the preferred tunnel.
Uses one tunnel selected in LDP LSP-GRE-MPLS TE order.
186
Table 11
Advertisement
Table of Contents
