show ipv6 traffic

Use this command to show traffic and statistics for IPv6 and ICMPv6. Specify a logical, loopback, or tunnel interface to view information about traffic on a specific interface. The argument unit/slot/port corresponds to a physical routing interface or VLAN routing interface. The keyword vlan is used to specify the VLAN ID of the routing VLAN directly instead of a unit/ slot/port format. If you do not specify an interface, the command displays information about traffic on all interfaces.

Format show ipv6 traffic [{unit/slot/port | vlan 1-4093 | loopback loopback-id | tunnel tunnel-id}]
Mode Privileged EXEC
Term Definition
Total Datagrams Received Total number of input datagrams received by the interface, including those received in error.
Received Datagrams Locally Delivered Total number of datagrams successfully delivered to IPv6 user-protocols (including ICMP). This counter increments at the interface to which these datagrams were addressed, which might not necessarily be the input interface for some of the datagrams.
Received Datagrams Discarded Due To Header Errors Number of input datagrams discarded due to errors in their IPv6 headers, including version number mismatch, other format errors, hop count exceeded, errors discovered in processing their IPv6 options, etc.
Received Datagrams Discarded Due To MTU Number of input datagrams that could not be forwarded because their size exceeded the link MTU of outgoing interface.
Received Datagrams Discarded Due To No Route Number of input datagrams discarded because no route could be found to transmit them to their destination.
Received Datagrams With Unknown Protocol Number of locally-addressed datagrams received successfully but discarded because of an unknown or unsupported protocol. This counter increments at the interface to which these datagrams were addressed, which might not be necessarily the input interface for some of the datagrams.
Received Datagrams Discarded Due To Invalid Address Number of input datagrams discarded because the IPv6 address in their IPv6 header's destination field was not a valid address to be received at this entity. This count includes invalid addresses (for example, ::0 and unsupported addresses (for example, addresses with unallocated prefixes). Forentities which are not IPv6 routers and therefore do not forward datagrams, this counter includes datagrams discarded because the destination address was not a local address.
Received Datagrams Discarded Due To Truncated Data Number of input datagrams discarded because datagram frame didn't carry enough data.
Received Datagrams Discarded Other Number of input IPv6 datagrams for which no problems were encountered to prevent their continue processing, but which were discarded (e.g., for lack of buffer space). Note that this counter does not include datagrams discarded while awaiting re-assembly.
Received Datagrams Reassembly Required Number of IPv6 fragments received which needed to be reassembled at this interface. Note that this counter increments at the interface to which these fragments were addressed, which might not be necessarily the input interface for some of the fragments.
Datagrams Successfully Reassembled Number of IPv6 datagrams successfully reassembled. Note that this counter increments at the interface to which these datagrams were addressed, which might not be necessarily the input interface for some of the fragments.
Datagrams Failed To Reassemble Number of failures detected by the IPv6 reassembly algorithm (for whatever reason: timed out, errors, etc.). Note that this is not necessarily a count of discarded IPv6 fragments since some algorithms (notably the algorithm in by combining them as they are received. This counter increments at the interface to which these fragments were addressed, which might not be necessarily the input interface for some of the fragments.
Datagrams Forwarded Number of output datagrams which this entity received and forwarded to their final destinations. In entities which do not act as IPv6 routers, this counter will include only those packets which were Source-Routed via this entity, and the Source-Route processing was successful. Note that for a successfully forwarded datagram the counter of the outgoing interface increments.
Datagrams Locally Transmitted Total number of IPv6 datagrams which local IPv6 user-protocols (including ICMP) supplied to IPv6 in requests for transmission. Note that this counter does not include any datagrams counted in ipv6IfStatsOutForwDatagrams.
Datagrams Transmit Failed Number of output IPv6 datagrams for which no problem was encountered to prevent their transmission to their destination, but which were discarded (e.g., for lack of buffer space). Note that this counter would include datagrams counted in ipv6IfStatsOutForwDatagrams if any such packets met this (discretionary) discard criterion.
Fragments Created Number of output datagram fragments that have been generated as a result of fragmentation at this output interface.
Datagrams Successfully Fragmented Number of IPv6 datagrams that have been successfully fragmented at this output interface.
Datagrams Failed To Fragment Number of IPv6 datagrams that have been discarded because they needed to be fragmented at this output interface but could not be.
Fragments Created The number of fragments that were created.
Multicast Datagrams Received Number of multicast packets received by the interface.
Multicast Datagrams Transmitted Number of multicast packets transmitted by the interface.
Total ICMPv6 messages received Total number of ICMP messages received by the interface which includes all those counted by ipv6IfIcmpInErrors. Note that this interface is the interface to which the ICMP messages were addressed which may not be necessarily the input interface for the messages.
ICMPv6 Messages with errors Number of ICMP messages which the interface received but determined as having ICMP- specific errors (bad ICMP checksums, bad length, etc.).
ICMPv6 Destination Unreachable Messages Received Number of ICMP Destination Unreachable messages received by the interface.
ICMPv6 Messages Prohibited Administratively Received Number of ICMP destination unreachable/communication administratively prohibited messages received by the interface.
ICMPv6 Time Exceeded Messages Received Number of ICMP Time Exceeded messages received by the interface.
ICMPv6 Parameter Problem Messages Received Number of ICMP Parameter Problem messages received by the interface.
ICMPv6 Packet Too Big Messages Received Number of ICMP Packet Too Big messages received by the interface.
ICMPv6 Echo Request Messages Received Number of ICMP Echo (request) messages received by the interface.
ICMPv6 Echo Reply Messages Received Number of ICMP Echo Reply messages received by the interface.
ICMPv6 Router Solicit Messages Received Number of ICMP Router Solicit messages received by the interface.
ICMPv6 Router Advertisement Messages Received Number of ICMP Router Advertisement messages received by the interface.
ICMPv6 Neighbor Solicit Messages Received Number of ICMP Neighbor Solicit messages received by the interface.
ICMPv6 Neighbor Advertisement Messages Received Number of ICMP Neighbor Advertisement messages received by the interface.
ICMPv6 Redirect Messages Received Number of Redirect messages received by the interface.
ICMPv6 Group Membership Query Messages Received Number of ICMPv6 Group Membership Query messages received by the interface.
ICMPv6 Group Membership Response Messages Received Number of ICMPv6 Group Membership response messages received by the interface.
ICMPv6 Group Membership Reduction Messages Received Number of ICMPv6 Group Membership reduction messages received by the interface.
Total ICMPv6 Messages Transmitted Total number of ICMP messages which this interface attempted to send. Note that this counter includes all those counted by icmpOutErrors.
ICMPv6 Messages Not Transmitted Due To Error Number of ICMP messages which this interface did not send due to problems discovered within ICMP such as a lack of buffers. This value should not include errors discovered outside the ICMP layer such as the inability of IPv6 to route the resultant datagram. In some implementations there may be no types of error which contribute to this counter's value.
ICMPv6 Destination Unreachable Messages Transmitted Number of ICMP Destination Unreachable messages sent by the interface.
ICMPv6 Messages Prohibited Administratively Transmitted Number of ICMP destination unreachable/communication administratively prohibited messages sent.
ICMPv6 Time Exceeded Messages Transmitted Number of ICMP Time Exceeded messages sent by the interface.
ICMPv6 Parameter Problem Messages Transmitted Number of ICMP Parameter Problem messages sent by the interface.
ICMPv6 Packet Too Big Messages Transmitted Number of ICMP Packet Too Big messages sent by the interface.
ICMPv6 Echo Request Messages Transmitted Number of ICMP Echo (request) messages sent by the interface.ICMP echo messages sent.
ICMPv6 Echo Reply Messages Transmitted Number of ICMP Echo Reply messages sent by the interface.
ICMPv6 Router Solicit Messages Transmitted Number of ICMP Router Solicitation messages sent by the interface.
ICMPv6 Router Advertisement Messages Transmitted Number of ICMP Router Advertisement messages sent by the interface.
ICMPv6 Neighbor Solicit Messages Transmitted Number of ICMP Neighbor Solicitation messages sent by the interface.
ICMPv6 Neighbor Advertisement Messages Transmitted Number of ICMP Neighbor Advertisement messages sent by the interface.
ICMPv6 Redirect Messages Received Number of Redirect messages sent. For a host, this object will always be zero, since hosts do not send redirects.
ICMPv6 Group Membership Query Messages Transmitted Number of ICMPv6 Group Membership Query messages sent.
ICMPv6 Group Membership Response Messages Transmitted Number of ICMPv6 Group Membership Response messages sent.
ICMPv6 Group Membership Reduction Messages Transmitted Number of ICMPv6 Group Membership Reduction messages sent.
ICMPv6 Duplicate Address Detects Number of duplicate addresses detected by the interface.

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