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    mtu

    Syntax

    mtu mtuSize

    no mtu

    Release Information

    Command introduced before JunosE Release 7.1.0.

    Description

    Sets the maximum allowable size in bytes of the maximum transmission unit for interfaces on cOCx/STMx, CT3, COCX-F3, Ethernet, or POS modules. The no version restores the default value, which varies according to module type. This command is not available for the Ethernet interface on the SRP module.

    Options

    • mtuSize—Maximum allowable size of the MTU; default and range varies with interface type:
      • Interfaces on cOCx/STMx, CT3, and COCX-F3 modules—Number in the range 4–9996; default value is 1600
      • Interfaces on Ethernet modules—Number in the range 64–9188, except on the FE-2 and FE-8 I/O modules, where the range is 64–9042; you cannot configure MTU on Ethernet interfaces on the SRP module; default value is 1518
      • Interfaces on POS modules—Number in the range 1–9996; default value is 4470

    Mode

    Interface Configuration

    Published: 2014-08-14