Help us improve your experience.

Let us know what you think.

Do you have time for a two-minute survey?

Navigation
Guide That Contains This Content
[+] Expand All
[-] Collapse All

    Monitoring IP Shared Interfaces

    Purpose

    Display information about shared IP interfaces. If you specify an IP interface specifier, the command displays information only for that interface and any shared IP interfaces associated with it.

    Action

    To display a brief summary of status and configuration information for all IP interfaces and their associated shared IP interfaces:

    host1#show ip interface shares brief 
    
    Interface        IP-Address         Status    Protocol   Virtual Router
    null0            255.255.255.255/32  up         up
    fastEthernet0/0  10.13.5.17/24       up         up
    loopback100      202.1.1.1/24        up         up
    atm4/0.1         10.1.1.1/24         up         up
    ip si0           Unnumbered          up         up        vr-a 
    ip si1           Unnumbered          up         up        vr-b:vrf-1 

    To display a brief summary of status and configuration information for the specified IP interface and its associated shared IP interfaces:

    host1#show ip interface shares brief atm 4/0.1 
    Interface        IP-Address         Status    Protocol   Virtual Router
    atm4/0.1         10.1.1.1/24         up         up
    ip si0           Unnumbered          up         up        vr-a 
    ip si1           Unnumbered          up         up        vr-b:vrf-1 

    To display all status and configuration information for the specified IP interface and its associated shared IP interfaces:

    host1#show ip interface shares atm 4/0.1   
    atm4/0.1 is up, line protocol is up
      Network Protocols: IP
      Unnumbered Interface on loopback100
      ( IP address  202.1.1.1 )
      Operational MTU = 1500  Administrative MTU = 0
      Operational speed = 155520000  Administrative speed = 0
      Discontinuity Time = 0
      Router advertisement = disabled
      Administrative debounce-time = disabled
      Operational debounce-time    = disabled
      Access routing = disabled
      Multipath mode = hashed
      In Received Packets 120, Bytes 12000
        Unicast Packets 60, Bytes 6000
        Multicast Packets 60, Bytes 6000
      In Policed Packets 0, Bytes 0
      In Error Packets 0
      In Invalid Source Address Packets 0
      Out Forwarded Packets 101, Bytes 5252
        Unicast Packets 101, Bytes 5252
        Multicast Routed Packets 0, Bytes 0
      Out Scheduler Drops Committed Packets 0, Bytes 0
      Out Scheduler Drops Conformed Packets 0, Bytes 0
      Out Scheduler Drops Exceeded  Packets 0, Bytes 0
      Out Policed Packets 0, Bytes 0
    ip si0 is up, line protocol is up
      Network Protocols: IP
      Virtual Router vr-a
      Layer 2 interface atm4/0.1
      Unnumbered Interface on loopback100
      ( IP address  202.1.1.1 )
      Operational MTU = 1500  Administrative MTU = 0
      Operational speed = 155520000  Administrative speed = 0
      Discontinuity Time = 0
      Router advertisement = disabled
      Administrative debounce-time = disabled
      Operational debounce-time    = disabled
      Access routing = disabled
      Multipath mode = hashed
      In Received Packets 0, Bytes 0
        Unicast Packets 0, Bytes 0
        Multicast Packets 0, Bytes 0
      In Policed Packets 0, Bytes 0
      In Error Packets 0
      In Invalid Source Address Packets 0
      Out Forwarded Packets 101, Bytes 5252
        Unicast Packets 101, Bytes 5252
        Multicast Routed Packets 0, Bytes 0
      Out Scheduler Drops Committed Packets 0, Bytes 0
      Out Scheduler Drops Conformed Packets 0, Bytes 0
      Out Scheduler Drops Exceeded  Packets 0, Bytes 0
      Out Policed Packets 0, Bytes 0
    ip si1 is up, line protocol is up
      Network Protocols: IP
      Virtual Router vr-b:vrf-1
      Layer 2 interface atm4/0.1
    .
    .
    .
      Out Policed Packets 0, Bytes 0

    To display all status and configuration information for a specific shared IP interface:

    host1#show ip interface shares ip si0
    ip0 is up, line protocol is up
      Network Protocols: IP
      Layer 2 interface atm4/0.1
      Unnumbered Interface on loopback100
      ( IP address  202.1.1.1 )
      Operational MTU = 1500  Administrative MTU = 0
      Operational speed = 155520000  Administrative speed = 0
      Discontinuity Time = 0
      Router advertisement = disabled
      Administrative debounce-time = disabled
      Operational debounce-time    = disabled
      Access routing = disabled
      Multipath mode = hashed
      In Received Packets 0, Bytes 0
        Unicast Packets 0, Bytes 0
        Multicast Packets 0, Bytes 0
      In Policed Packets 0, Bytes 0
      In Error Packets 0
      In Invalid Source Address Packets 0
      Out Forwarded Packets 101, Bytes 5252
        Unicast Packets 101, Bytes 5252
        Multicast Routed Packets 0, Bytes 0
      Out Scheduler Drops Committed Packets 0, Bytes 0
      Out Scheduler Drops Conformed Packets 0, Bytes 0
      Out Scheduler Drops Exceeded  Packets 0, Bytes 0
      Out Policed Packets 0, Bytes 0

    Meaning

    Table 1 lists the show ip interface shares command output fields.

    Table 1: show ip interface shares Output Fields

    Field Name

    Field Description

    Interface

    Interface specifier or name of the interface

    IP-Address

    IP address associated with the interface

    Status

    Operational state of the interface

    Protocol

    State of the protocol running on the interface

    Virtual Router

    Virtual router in which the interface is configured

    Network Protocols

    Network protocols configured on this interface

    Layer 2 interface

    Layer 2 interface to which the shared IP interface is associated

    Unnumbered Interface

    Specifier for the unnumbered interface

    Operational MTU

    MTU of this interface

    Administrative MTU

    Value of the MTU if it has been administratively overridden using the configuration

    Operational speed

    Speed of the interface

    Administrative speed

    Value of the speed if it has been administratively overridden using the configuration

    Discontinuity Time

    Value of the SysUpTime when the interface statistics last started being valid

    Router advertisement

    Status of router discovery advertisement: enabled, disabled

    Administrative debounce-time

    Configured debounce behavior, enabled or disabled. If enabled, indicates time in milliseconds that the router waits before generating an up or down event in response to a state change in the interface. If the state changes back before the debounce timer expires, no state change is reported.

    Operational debounce-time

    Current debounce behavior, enabled or disabled. If enabled, indicates time in milliseconds that the router waits before generating an up or down event in response to a state change in the interface. If the state changes back before the debounce timer expires, no state change is reported.

    Access routing

    Access route addition: enabled, disabled

    Multipath mode

    Equal cost multipath mode method: hashed, round-robin

    In Received Packets, Bytes

    Total number of packets and bytes received on this interface:

    • Unicast Packets, Bytes—Unicast packets and bytes received on the IP interface; link-local received multicast packets (non-multicast-routed frames) are counted as unicast packets
    • Multicast Packets, Bytes—Multicast packets and bytes received on the IP interface which are then multicast-routed are counted as multicast packets

    In Policed Packets, Bytes

    Packets and bytes that were received and dropped for any of the following reasons: exceeding the token bucket limit, exceeding the rate limit, a drop action in a policy, discarded MAC validation packets, a destination address lookup failure, or when the destination address is an IP interface that has a route configured to the null 0 interface.

    In Error Packets

    Number of packets received with errors

    In Invalid Source Address Packets

    Packets received with invalid source address (for example, spoofed packets)

    Out Forwarded Packets, Bytes

    Total number of packets and bytes that were sent from this interface:

    • Unicast Packets, Bytes—Unicast packets and bytes that were sent from this interface
    • Multicast Routed Packets, Bytes—Multicast packets and bytes that were sent from this interface

    Out Scheduler Drops Committed Packets, Bytes

    Outgoing packets and bytes dropped by the scheduler even though they had a committed traffic contract

    Out Scheduler Drops Conformed Packets, Bytes

    Outgoing packets and bytes dropped by the scheduler even though they conformed to the traffic contract

    Out Scheduler Drops Exceeded Packets, Bytes

    Outgoing packets and bytes that were dropped by the scheduler because they exceeded the contract

    Out Policed Packets, Bytes

    Outgoing packets and bytes dropped because of rate limiters

    Published: 2014-08-13