tunnel binding

Function

The tunnel binding command binds a specified tunnel to the destination IP address. Therefore, the tunnel can be used by a specified VPN.

The undo tunnel binding command cancels the binding.

By default, a tunnel is not bound to any IP address.

Format

tunnel binding destination dest-ip-address te { tunnel interface-number } &<1-6> [ ignore-destination-check ] [ down-switch ]

undo tunnel binding destination dest-ip-address

Parameters

Parameter	Description	Value
dest-ip-address	Specifies the destination address of the tunnel.	-
interface-number	Specifies the interface number of the bound tunnel interface.	-
ignore-destination-check	Specifies whether to ignore destination consistency check. If this parameter is enabled, a tunnel policy selects a TE tunnel for route iteration even if the destination address of that TE tunnel is different from the destination address specified in the tunnel policy.	-
down-switch	Indicates that the tunnel switchover is enabled. After this parameter is configured, an available tunnel, with the priority as LSP, CR-LSP, is adopted when the bound TE tunnel fails.	-

Views

Tunnel policy view

Default Level

2: Configuration level

Usage Guidelines

Usage Scenario

A tunnel policy determines the selection of proper tunnels for VPN services. There are two types of tunnel policies. Only one policy type can be configured in the tunnel policy view.

Tunnel type prioritizing policy: Such a policy specifies the sequence in which different types of tunnels are selected. The tunnel select-seq command is used to configure a tunnel type prioritizing policy.
Tunnel binding policy: Such a policy binds a tunnel to a VPN for service transmission. The tunnel binding command is used to configure a tunnel binding policy.

Only MPLS TE tunnels can be bound to VPNs. The tunnel binding command can specify the MPLS TE tunnels that are used for VPN binding, facilitating QoS deployment. If some VPN services have high requirements for QoS, run the tunnel binding command to use specific MPLS TE tunnels to transmit these VPN services.

Prerequisites

The tunnel-policy command is run to create a tunnel policy.

The mpls te reserved-for-binding command is run in the view of the tunnel interface to be bound to an MPLS TE tunnel.

Precautions

The tunnel binding command can be run repeatedly in the tunnel policy view so long as the value of dest-ip-address varies.

Apply the tunnel binding policy to the VPN instance so that the VPN instance can have its routes iterated to the bound MPLS TE tunnel.

Example

# Bind the IP address of the remote PE, 10.2.2.9, to the local tunnel interface Tunnel1 in the tunnel policy view.

<HUAWEI> system-view
[HUAWEI] tunnel-policy tnlpolicyname
[HUAWEI-tunnel-policy-tnlpolicyname] tunnel binding destination 10.2.2.9 te tunnel 1