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    Operational Mode CLI Commands for Router Monitoring


    Use the operational mode CLI commands listed in Table 1 to monitor router hardware.



    Table 1: Operational Mode CLI Commands for Router Monitoring



    show version

    Displays the router hostname, model number, and version of Junos OS running on the router.

    show chassis firmware

    Displays the version of firmware running on the SCB, SFM, SSB, FEB, and FPCs.

    show chassis hardware

    Displays an inventory of the hardware components installed in the router, including the component name, version, part number, serial number, and a brief description.

    show chassis environment

    Displays environmental information about the router chassis, including the temperature and status.

    show chassis environment component-name

    Displays more detailed environmental information for the following router components: FPCs, Front Panel Module (FPM), Miscellaneous Subsystem (MCS), PFE Clock Generator (PCG), Power Entry Module (PEM) or power supply, control board, SONET clock generator (SCG), Switch Interface Board (SIB), Routing Engine, and SFM. This command works only on the M40e, M160, and T320 routers, and the T640 routing node.

    show chassis craft-interface

    Displays operational status information about the router, including the alarm status and LED status of major components.

    show chassis alarms

    Displays the current router component alarms that have been generated, including the date, time, severity level, and description.

    show chassis component-name

    Displays more detailed operational status information about the FPCs, Routing Engine, FEB, SCB, SFMs, and SSB router components, including the temperature of air passing by the Switch Plane Processor (SPP) card and the Switch Plane Router (SPR) card (the two SFM serial components), in degrees Centigrade. The command displays the total CPU DRAM and SRAM being used by the SFM processor. The command output displays the time that the SFM became active and how long the SFM has been up and running. A small uptime can indicate a problem.

    show log messages

    Displays the contents of the messages system log file that records messages generated by component operational events, including error messages generated by component failures.

    To monitor the messages file in real time, use the monitor start messages CLI command. This command displays the new entries in the file until you stop monitoring by using the monitor stop messages CLI command.

    show log chassisd

    Displays the contents of the chassis daemon (chassisd) log file that keeps track of the state of each chassis component

    To monitor the chassisd file in real time, use the monitor start chassisd CLI command. This command displays the new entries in the file until you stop monitoring by using the monitor stop chassisd CLI command.

    request support information

    Use this command when you contact the Juniper Networks Technical Assistance Center (JTAC) about your component problem. This command is the equivalent of using the following CLI commands (see Contact JTAC):

    • show version
    • show chassis firmware
    • show chassis hardware
    • show chassis environment
    • show interfaces extensive (for each configured interface)
    • show configuration (excluding any SECRET-DATA)
    • show system virtual-memory

    Contact JTAC

    If you cannot determine the cause of a problem or need additional assistance, contact JTAC at or at 1-888-314-JTAC (within the United States) or 1-408-745-9500 (from outside the United States). For details on the information you need to provide for JTAC, See Contact JTAC. For steps to return a failed component, see Return the Failed Component.

    Published: 2015-05-10