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mtu (Dynamic and Static PPPoE)


Hierarchy Level


Specify the size of maximum transmission unit (MTU) for the PPP connection. For a PPP connection, the MTU size defines the largest data unit that can be forwarded without fragmentation. This size does not include the overhead of the lower layers.



MTU size in bytes for a PPP connection.

  • Range: 64–65,535


Set the PPP MTU size to the interface MTU size excluding the overhead of the lower layers.

Required Privilege Level

interface—To view this statement in the configuration.

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

Release Information

Statement introduced in Junos OS Release 14.2.