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mtu

Syntax

mtu bytes;

Hierarchy Level

[edit interfaces interface-name],
[edit interfaces interface-name unit logical-unit-number family family],
[edit logical-systems logical-system-name interfaces interface-name unit logical-unit-number family family]

Release Information

Statement introduced before JUNOS Release 7.4.

Description

Maximum transmission unit (MTU) size for the media or protocol. The default MTU size depends on the device type. Not all devices allow you to set an MTU value, and some devices have restrictions on the range of allowable MTU values.

Options

bytes—MTU size.

Range: 0 through 5012 bytes
Default: 1500 bytes (inet, inet6, and iso families), 1448 bytes (mpls)

Usage Guidelines

See Configuring the MRRU and MTU Values.

Required Privilege Level

interface—To view this statement in the configuration.

interface-control—To add this statement to the configuration.

Related Topics

JUNOS Network Interfaces Configuration Guide

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