backup tunnel port

Function

The backup tunnel port command configures a TCP port number for a dual-device hot backup channel.

The undo backup tunnel port command deletes a TCP port number configured for a dual-device hot backup channel.

By default, no TCP port number is configured for a dual-device hot backup channel.

Format

backup tunnel port port-value

undo backup tunnel port port-value

Parameters

Parameter	Description	Value
port-value	Specifies a TCP port number for a dual-device hot backup channel.	The value is an integer ranging from 1025 to 65535.

Parameter

Description

Value

port-value

Specifies a TCP port number for a dual-device hot backup channel.

The value is an integer ranging from 1025 to 65535.

Views

E-Trunk view

Default Level

2: Configuration level

Task Name and Operations

Task Name	Operations
rbs	write

Usage Guidelines

Usage Scenario

Dual-device ARP hot backup is supported in E-Trunk scenarios by default. The local and peer ends of an E-Trunk establish a TCP connection to form a hot backup channel, implementing dual-device ARP hot backup.

To configure a TCP port number for a dual-device hot backup channel, run the backup tunnel port command.

Prerequisites

An E-Trunk has been created and the E-Trunk view has been displayed using the e-trunk command in the system view.
IP addresses have been assigned to the local and peer ends of the E-Trunk using the peer-address peer-ip-address source-address source-ip-address command.

Precautions

In VS mode, this command is supported only by the admin VS.

To prevent a configuration failure, ensure that the specified TCP port number is not used.

Example

# Set a TCP port number to 1025 for a dual-device hot backup channel.

<HUAWEI> system-view
[~HUAWEI] e-trunk 1
[*HUAWEI-e-trunk-1] backup tunnel port 1025