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    Monitoring IP Forwarding Table Details for a Line Module

    Purpose

    Display details on the forwarding table for a specific line module, including the memory used by each virtual router configured on the line module and free memory available on the module. This command is not supported on ES2 10G, ES2 10G Uplink, and ES2 10G ADV LMs.

    Action

    To display details on the forwarding table for a specific line module:

    host1#show ip forwarding-table slot 9
    Free Memory = 3,166KB
      Virtual Router      Memory       Load Errors     Status
                          (KB)
    ----------------     ---------    -------------    --------
       vr1                 4128              0          Valid
       vr2                 3136              0          Valid
       vr3                 2256              0          Valid
    default               1024              0          Valid
    -----------------------------------------------------------

    Meaning

    Table 1 lists the show ip forwarding-table slot command output fields.

    Table 1: show ip forwarding-table slot Output Fields

    Field Name

    Field Description

    Free Memory

    Amount of routing table memory free on the line module, in kilobytes

    Virtual Router

    Name of the virtual routers configured on the line module

    Memory (KB)

    Amount of routing table memory consumed by the virtual router, in kilobytes

    Load Errors

    Count of errors made while loading the routing table on the line module

    Records any failed routing table distribution attempt as an error. Attempts can fail for many reasons during normal operation; a failed attempt does not necessarily indicate a problem. It is normal to see many Load Errors per day.

    Status

    Whether the routing table for the virtual router is valid

    If the Status field does not indicate Valid, then the routing table distribution has failed constantly for that virtual router. It is normal and appropriate behavior for the Status field to indicate Valid while the Load Error field increases daily.

     

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    Published: 2014-08-13