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mtu

Syntax

mtu bytes;

Hierarchy Level

[edit interfaces interface-name],[edit interfaces interface-range interface-name]

Release Information

Statement introduced in Junos OS Release 11.1 for the QFX Series.

Description

Specify the maximum transmission unit (MTU) size for the media. Changing the media MTU size causes an interface to be deleted and added again. On a QFX3500 switch, either standalone or as part of the QFabric system, the maximum MTU value on an untagged packet transiting through an ingress Gigabit Ethernet interface must be no more than the currently configured MTU value plus four, whereas the maximum MTU value on a tagged packet transiting through an ingress Gigabit Ethernet interface must be no more than the currently configured MTU value plus eight. The maximum MTU value on an untagged or tagged packet transiting through an ingress 10-Gigabit Ethernet interface must be no more than the currently configured MTU value plus eight.

Options

bytes —MTU size.

Range: 64 through 9216 bytes

Default: 1514 bytes

Required Privilege Level

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