ip mtu (PPP over T1)

This command specifies the maximum transfer unit value to be used by this PPP serial interface.

Syntax

ip mtu <mode> <value>

Command	Description
mode	Defines the MTU mode to be used: ‘automatic’ – Set to default value 1500 bytes. ‘manual’ – Set manually according to following value.
value	Defines the MTU in manual mode (68-1500).

Default

By default, the MTU is set to 1500 bytes.

Command Mode

Privileged User

Example

This example sets the mtu to 1400 bytes:

(conf-if-serial-ppp 0/0)# ip mtu manual 1400