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# Monitoring the Policy Configuration of IPv6 Interfaces

#### Purpose

Display detailed or summary information, including policy and classifier information, for a particular IPv6 interface or for all interfaces. The default for the show ipv6 interface command is all interface types and all interfaces. The brief or detail keywords with the show ipv6 interface command displays different levels of information.

#### Action

To display information about IPv6 policy lists:

    host1#show ipv6 interface FastEthernet 9/0.6
    FastEthernet9/0.6 line protocol VlanSub is up, ipv6 is up
      Description: IPv6 interface in Virtual Router Hop6
      Network Protocols: IPv6
      Link local address: fe80::90:1a00:740:31cd
      Internet address: 2001:db8:1::/48
      Operational MTU 1500 Administrative MTU 0
      Operational speed 100000000 Administrative speed 0
      Creation type Static
      ND reachable time is 3600000 milliseconds
      ND duplicate address detection attempts is 100
      ND neighbor solicitation retransmission interval is 1000 milliseconds
      ND proxy is enabled
      ND RA source link layer is advertised
      ND RA interval is 200 seconds, lifetime is 1800 seconds
      ND RA managed flag is disabled, other config flag is disabled
      ND RA advertising prefixes configured on interface

      In Received Packets 0, Bytes 0
        Unicast Packets 0, Bytes 0
        Multicast Packets 0, Bytes 0
      In Total Dropped Packets 0, Bytes 0
        In Policed Packets 0
        In Invalid Source Address Packets 0
        In Error Packets 0
        In Discarded Packets 0

      Out Forwarded Packets 8, Bytes 768
        Unicast Packets 8, Bytes 768
        Multicast Routed Packets 0, Bytes 0
      Out Total Dropped Packets 5, Bytes 0
        Out Scheduler Dropped Packets 0, Bytes 0
        Out Policed Packets 0
        Out Discarded Packets 5

      IPv6 policy input ipv6InPol25
        rate-limit-profile Rlp2Mb classifier-group clgA entry 1
          Committed: 0 packets, 0 bytes
          Conformed: 0 packets, 0 bytes
          Exceeded:  0 packets, 0 bytes
        rate-limit-profile Rlp8Mb
          Committed: 0 packets, 0 bytes
          Conformed: 0 packets, 0 bytes
          Exceeded:  0 packets, 0 bytes
      IPv6 policy output ipv6PolOut2
        rate-limit-profile RlpOutA classifier-group clgB entry 1
          Committed: 0 packets, 0 bytes
          Conformed: 0 packets, 0 bytes
          Exceeded:  0 packets, 0 bytes
        rate-limit-profile RlpOutB
          Committed: 0 packets, 0 bytes
          Conformed: 0 packets, 0 bytes
          Exceeded:  0 packets, 0 bytes
      IPv6 policy local-input ipv6PolLocIn5
        rate-limit-profile Rlp1Mb classifier-group clgC entry 1
          Committed: 0 packets, 0 bytes
          Conformed: 0 packets, 0 bytes
          Exceeded:  0 packets, 0 bytes
        rate-limit-profile Rlp5Mb
          Committed: 0 packets, 0 bytes
          Conformed: 0 packets, 0 bytes
          Exceeded:  0 packets, 0 bytes
      queue 0: traffic class best-effort, bound to ipv6 FastEthernet9/0.6
        Queue length 0 bytes
        Forwarded packets 0, bytes 0
        Dropped committed packets 0, bytes 0
        Dropped conformed packets 0, bytes 0
        Dropped exceeded packets 0, bytes 0

#### Meaning

Table 39 lists the show ipv6 interface command output fields.

Table 39: show ipv6 interface Output Fields

Field Name | Field Description
--- | ---
Description | Optional description for the interface or address specified
Network Protocols | Network protocols configured on this interface
Link local address | Local IPv6 address of this interface
Internet address | External address of this interface
Operational MTU | Value of the MTU
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
Creation type | Method by which the interface was created (static or dynamic)
ND reachable time | Amount of time (in milliseconds) that the neighbor is expected to remain reachable
ND duplicate address detection attempts | Number of times that the router attempts to determine a duplicate address
ND neighbor solicitation retransmission interval | Amount of time (in milliseconds) during which the router retransmits neighbor solicitations
ND proxy | Whether the router replies to solicitations on behalf of a known neighbor, enabled or disabled
ND RA source link layer | Whether the RA includes the link layer
ND RA interval | Amount of time (in seconds) of the neighbor discovery router advertisement
ND RA lifetime | Amount of time (in seconds) of the neighbor discovery router advertisement
ND RA managed flag | State of the neighbor discovery router advertisement managed flag, enabled or disabled
ND RA other config flag | State of the neighbor discovery router advertisement other config flag, enabled or disabled
ND RA advertising prefixes | Whether advertisement prefixes for neighbor discovery router advertisement are configured
In Received Packets, Bytes | Total number of packets and bytes received on this interface
Unicast Packets, Bytes | Number of unicast packets and bytes received on the IPv6 interface; link-local received multicast packets (non-multicast-routed frames) are counted as unicast packets
Multicast Packets, Bytes | Number of multicast packets and bytes received on the IPv6 interface, which are then multicast-routed and counted as multicast packets
In Total Dropped Packets, Bytes | Total number of inbound packets and bytes dropped on this interface
In Policed Packets | Number of packets that were received and dropped because of rate limits
In Invalid Source Address Packets | Number of packets received with invalid source address (for example, spoofed packets)
In Error Packets | Number of packets received with errors
In Discarded Packets | Number of packets received that were discarded for reasons other than rate limits, errors, and invalid source address
Out Forwarded Packets, Bytes | Total number of packets and bytes that were sent from this interface
Unicast Packets, Bytes | Number of unicast packets and bytes that were sent from this interface
Multicast Routed Packets, Bytes | Number of multicast packets and bytes that were sent from this interface
Out Total Dropped Packets | Total number of outbound packets and bytes dropped by this interface
Out Scheduler Dropped Packets, Bytes | Number of outbound packets and bytes dropped by the scheduler
Out Policed Packets, Bytes | Number of outbound packets and bytes dropped because of rate limits
Out Discarded Packets | Number of outbound packets that were discarded for reasons other than those dropped by the scheduler and those dropped because of rate limits
IPv6 policy | Type (input, output, local-input) and name of the policy
rate-limit-profile | Name of the profile
classifier-group entry | Entry index
Committed | Number of packets and bytes that conform to the committed access rate
Conformed | Number of packets and bytes that exceed the committed access rate but conform to the peak access rate
Exceeded | Number of packets and bytes that exceed the peak access rate
queue, traffic class, bound to ipv6 | Queue and traffic class bound to the specified IPv6 interface
Queue length | Number of bytes in the queue
Dropped committed packets, bytes | Total number of committed packets and bytes dropped by this interface
Dropped conformed packets, bytes | Total number of conformed packets and bytes dropped by this interface
Dropped exceeded packets, bytes | Total number of exceeded packets and bytes dropped by this interface

#### Related Topics

- show ipv6 interface

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