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    Troubleshooting Using the T640 Chassis and Interface Alarm Messages

    When the Routing Engine detects an alarm condition, it lights the red or yellow alarm LED on the craft interface as appropriate, trips the corresponding alarm relay contact on the CIP, and reports the cause of the alarm in the craft interface LCD. To view a more detailed description of the alarm cause, issue the show chassis alarms CLI command:


    user@host> show chassis alarms

    There are two classes of alarm messages:

    • Chassis alarms—Indicate a problem with a chassis component such as the cooling system or power supplies, as described in Table 1.
    • Interface alarms—Indicate a problem with a specific network interface, as described in Table 2.

    In both Table 1 and Table 2, the text in the column labeled “LCD Message” appears in the LCD. The text in the column labeled “CLI Message” appears in the output from the show chassis alarms command.

    Table 1: T640 Chassis Alarm Messages

    Component

    Alarm Type

    LCD Display Message

    CLI Message

    Fans

    Red

    Fan Failure

    fan-name Failure

    Fans Missing

    Too many fans missing or failing

    Yellow

    Fan Removed

    fan-name Removed

    Temperature sensors

    Red

    Temperature Hot

    Temperature Hot

    Sensor Failure

    Temperature sensor failure

    Yellow

    Temperature Warm

    Temperature Warm

    Power supplies

    Red

    PEM pem-number Over Temp

    PEM pem-number Over Temperature

    PEM pem-number Output Fail

    PEM pem-number Output Failure

    PEM pem-number Input Fail

    PEM pem-number Input Failure

    Yellow

    PEM pem-number Removed

    PEM pem-number Removed

    SIBs

    Red

    SIB sib-number Failure

    SIB sib-number Fault

    SIB sib-number Removed

    SIB sib-number Absent

    Yellow

    Spare SIB Failure

    Spare SIB Fault

    Spare SIB Removed

    Spare SIB Absent

    Check SIB

    Check SIB

    Host subsystems

    Red

    Host host-number Removed

    Host host-number Removed

    Yellow

    Host host-number Failure

    Host host-number Failure

    T-CB

    Red

    CB cb-number Removed

    CB cb-number Removed

    CB cb-number Failure

    CB cb-number Failure

    Yellow

    CB cb-number Ethernet Switch Failure

    CB cb-number Ethernet Switch Failure

    SCG

    SCG SCG-number Failure

    RED ALARMSCG SCG-number Failure

    SCG SCG-number Removed

    RED ALARMSCG SCG-number Failure

    SCG SCG-number Not Online

    YELLOW ALARMSCG SCG-number Not Online

    Craft interface

    Yellow

    Craft Failure

    Craft Failure

    Table 2: SONET/SDH Interface Alarm Messages

    LCD Message

    CLI Message

    interface-name so-x/x/x BERR-SD

    interface-name so-x/x/x - SONET bit error rate defect

    interface-name so-x/x/x BERR-SF

    interface-name so-x/x/x - SONET bit error rate fault

    interface-name so-x/x/x LAIS

    interface-name so-x/x/x - SONET line AIS

    interface-name so-x/x/x LOF

    interface-name so-x/x/x - SONET loss of frame

    interface-name so-x/x/x LOL

    interface-name so-x/x/x - SONET loss of light

    interface-name so-x/x/x LOP

    interface-name so-x/x/x - SONET loss of pointer

    interface-name so-x/x/x LOS

    interface-name so-x/x/x - SONET loss of signal

    interface-name so-x/x/x LRDI

    interface-name so-x/x/x - SONET line remote defect indicator

    interface-name so-x/x/x PAIS

    interface-name so-x/x/x - SONET path AIS

    interface-name so-x/x/x PLL

    interface-name so-x/x/x - SONET PLL lock

    interface-name so-x/x/x PMIS

    interface-name so-x/x/x - SONET path mismatch

    interface-name so-x/x/x PRDI

    interface-name so-x/x/x - SONET path remote defect indicator

    interface-name so-x/x/x REI

    interface-name so-x/x/x - SONET remote error indicator

    interface-name so-x/x/x SEF

    interface-name so-x/x/x - SONET severely errored frame

    interface-name so-x/x/x UNEQ

    interface-name so-x/x/x - SONET unequipped


    Published: 2010-10-28