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    Monitoring the Redundancy Status

    Purpose

    Display the redundancy modes and other information about stateful SRP switchover.

    Action

    To display summary redundancy status information. 

    host1#show redundancy
    
    SRP
    ---
     
    high-availability state:  disabled
    current redundancy mode:  high-availability
    last activation type:     cold-switch
     
    Criteria Preventing High Availability from being Active
    -------------------------------------------------------
                       criterion                      met
    -----------------------------------------------   ---
    Standby SRP is online and capable of mirroring?   No
     
    Line Card
    ---------
     
    automatic reverting is off
     
                                  backed
                                    up     sparing
           hardware    lockout      by       for     revert
    slot     role      config      slot     slot       at
    ----   --------   ---------   ------   -------   ------
     3       ---         ---       ---       ---      ---
     8      spare        ---       ---       ---      ---
     12    primary    protected    ---       ---      ---
     
             midplane   midplane
    slots      type       rev
    ------   --------   --------
    8 - 13      6          0

    To display detailed redundancy status information:

    host1#show redundancy detail
    
    SRP
    ---
    high-availability state:  disabled
    current redundancy mode:  file-system-synchronization
    last activation type:     cold-start
       Criteria Required for High Availability to be Active
       ----------------------------------------------------
                         criterion                         met
    ----------------------------------------------------   ---
    Active SRP hardware supports High Availability?        Yes
    High Availability mode configured?                     No
    Mirroring Subsystem present?                           Yes
    Mirroring activity levels within limits?               Yes
    Network Core Dumps disabled?                           Yes
    Running configuration is safe for High Availability?   Yes
    Standby SRP hardware supports High Availability?       Yes
    Standby SRP is online and capable of mirroring?        Yes
    Standby SRP is running the same release?               Yes
    Line Card
    ---------
    automatic reverting is off
                                  backed
                                    up     sparing
           hardware    lockout      by       for     revert
    slot     role      config      slot     slot       at
    ----   --------   ---------   ------   -------   ------
     3       ---         ---       ---       ---      ---
     8      spare        ---       ---       ---      ---
     12    primary    protected    ---       ---      ---
             midplane   midplane
    slots      type       rev
    ------   --------   --------
    8 - 13      6          0

    Meaning

    Table 1 lists the show redundancy command output fields.

    Table 1: show redundancy Output Fields

    Field Name

    Field Description

    SRP

    high-availability state

    State of high availability mode:

    • disabled—Initial, default state for high-availability mode. The router continues to use file system synchronization.
    • active—Data synchronized from the active SRP module to the standby SRP module during initialization remains synchronized through mirroring updates.
    • pending—If an unsupported application is configured, the router transitions to this state.
    • initializing—If SRP module is in initializing state, bulk synchronization of memory and NVS occurs.

    current redundancy mode

    Redundancy mode currently used by the router:

    • high-availability—Ensures rapid SRP module recovery after a switchover by using initial bulk file transfer and subsequent, transaction-based mirroring.
    • file-system-synchronization—Default redundancy mode of the router. SRP modules reload all line modules and restart form saved configuration files.

    last activation type

    Last type of activation that occurred on the router. The method using which the SRP last booted:

    • cold-switch—When the router is in pending state and switchover occurs, the router undergoes a cold-switch or cold re-start.
    • warm-switch—When the router is in active state and switchover occurs, the router undergoes a warm-switch or warm re-start.

    Criteria Preventing High Availability from being Active

    Criteria preventing the router from being in the active state of high availability mode.

    Note: For the router to be in the Active state, all criteria for this option must be “yes”.

    Criteria Required for High Availability to be Active

    Criteria required for the router to be in the active state of high availability mode.

    Note: For the router to be in the Active state, all criteria for this option must be “yes”.

    Line Card

    automatic reverting

    State of automatic reverting. Possible states: on or off.

    slots

    Slots in which the line modules reside.

    hardware role

    Function of the line module. Possible values: primary or spare.

    lockout config

    Status of redundancy on the line module:

    • protected—Line module redundancy is enabled
    • locked out—Line module redundancy is disabled

    backed up by slot

    Slot that contains the line module that is a spare for this primary line module.

    sparing for slot

    Slot that contains the primary line module for which this module is a spare.

    revert at

    Time at which you want the line module to revert.

    midplane type

    Identifier for the type of midplane.

    midplane rev

    Hardware revision number of the redundancy midplane.

    fabric slice redundancy

    Status of the fabric slice on the SRP modules or SFMs on the E120 and E320 routers.

    slot

    Slot in which the fabric slice resides.

    slice state

    State of the fabric slice. Possible values: online or not present.

    type

    Identifier for the type of hardware. Possible values: SRP modules or SFM modules.

     

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    Published: 2014-08-12