tcp timer syn-timeout

Function

The tcp timer syn-timeout command sets the TCP SYN-Wait timer.

The undo tcp timer syn-timeout command restores the default value of the timer.

By default, the value of the TCP SYN-Wait timer is 75 seconds.

Format

tcp timer syn-timeout interval

undo tcp timer syn-timeout

Parameters

Parameter	Description	Value
interval	Specifies the value of TCP SYN-Wait timer in seconds.	The value ranges from 2 to 600 seconds.

Parameter

Description

Value

interval

Specifies the value of TCP SYN-Wait timer in seconds.

The value ranges from 2 to 600 seconds.

Views

System view

Default Level

2: Configuration level

Task Name and Operations

Task Name	Operations
ip-stack	write

Usage Guidelines

Usage Scenario

When a SYN packet is sent, TCP enables the SYN-Wait timer. If no response packet is received before SYN-Wait is timeout, the TCP connection is terminated.

Configuration Impact

The SYN-Wait timer starts when an SYN packet is sent. A TCP connection is torn down if no response packet is received before the SYN-Wait timer expires.

Precautions

If this command is configured for several times in the same view, only the last configuration takes effect.

You are recommended to configure the parameters under the guidance of the technical personnel.

Example

# Set the TCP SYN-Wait timer to 100 seconds.

<HUAWEI> system-view
[~HUAWEI] tcp timer syn-timeout 100