ip mtu

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

Syntax

ip mtu <n>

Keyword

Description

The MTU size in bytes.

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

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.

ip mtu 1300

Last updated 5 months ago