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
   classifier-group *
      0 packets, 0 bytes
      forward
         Virtual-router: default
         List:
           next-hop 2001:82ab:1020:87ec::/64, order 100, rule 3 (active) 
           (not supported in output policy)
   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 42 lists the show ipv6 interface command output fields.

Table 42: 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
forward	Number of packets and bytes forwarded because of the CLACL
next-hop	Next-hop IPv6 addresses are used as forwarding solutions, and the order of the rule within the classifier that the router uses to choose the solutions. The phrase in parentheses describes whether the rule entry is reachable, active, and supported for the configured 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

Monitoring the Policy Configuration of IPv6 Interfaces

Purpose

Action

Meaning

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