ip mtu

Sets the maximum transmission unit (MTU) on an interface.

Syntax

ip mtu <n>

Syntax Description

Keyword	Description
n	The MTU size in bytes.

Defaults

The default MTU is 1,500 bytes for Ethernet interfaces and 1,408 bytes for WireGuard VPN interfaces.

Usage Guidelines

This command sets the maximum transmission unit (MTU) for an interface.

This command is valid only in interface context. Entering it does not change the configuration mode of the interface.

Examples

ip mtu 1300

Related Commands

interface