H3C Technologies H3C S12500-X Series Switches - Manual (Page 108)

97
Configuration procedure
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
2. 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
Tunnel selection order configuration example
Network requirements
PE 1 has multiple tunnels to reach PE 2: one MPLS TE tunnel on the interface Tunnel 1, and one LDP LSP
tunnel.
Only one MPLS VPN, vpna, exists on PE 1. Select only one tunnel in LDP LSP-MPLS TE order for this VPN.
Configuration procedure
1. Create tunnel policy seq-lsp-te, specify the tunnel selection order, and set the number of tunnels for
load balancing to 1—no load balancing.
<PE1> system-view
[PE1] tunnel-policy seq-lsp-te
[PE1-tunnel-policy-seq-lsp-te] select-seq lsp cr-lsp load-balance-number 1
[PE1-tunnel-policy-seq-lsp-te] quit
2. Create MPLS VPN instance vpna, and apply tunnel policy seq-lsp-te 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 seq-lsp-te
Preferred tunnel and tunnel selection order configuration
example
Network requirements
PE 1 has multiple tunnels to reach PE 2: two MPLS TE tunnels on the interface Tunnel 1 and Tunnel 3, and
one LDP LSP tunnel.
PE 1 has multiple MPLS VPN instances: vpna, vpnb, vpnc, vpnd, and vpne.
Table 1 shows the tunnel
policy that PE 1 uses for each VPN instance.