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    mtu mtuSize

    no mtu

    Release Information

    Command introduced before JunosE Release 7.1.0.


    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.


    • 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


    Interface Configuration

    Published: 2014-08-14