display icmpv6 statistics

Function

The display icmpv6 statistics command displays ICMPv6 traffic statistics.

Format

display icmpv6 statistics [ interface interface-type interface-number ]

Parameters

Parameter	Description	Value
interface interface-type interface-number	Indicates the ICMPv6 traffic statistics on the specified interface.	-

Views

All views

Default Level

1: Monitoring level

Usage Guidelines

Usage Scenario

You can run the display icmpv6 statistics command to view ICMPv6 packet statistics, including statistics about received and sent ICMPv6 error packets and statistics about four types of ICMPv6 packets (RS, RA, NS, and NA packets) used in the neighbor discovery mechanism.

When you ping an IPv6 address from a device, run the display icmpv6 statistics command on the device to check whether the total number of sent and received packets is correct.

Precautions

The total number of packets received by the device includes the number of packets forwarded, number of packets delivered to upper-layer network devices, and number of packets discarded.

Example

# Display ICMPv6 traffic statistics on the device.

<HUAWEI> display icmpv6 statistics interface vlanif 100
ICMPv6 protocol:                                                                
                                                                                
  Sent packets:                                                                 
    Total              : 2                                                      
    Unreached          : 0          Prohibited         : 0                      
    Hop count exceeded : 0          Parameter problem  : 0                      
    Too big            : 0          Echoed             : 0                      
    Echo replied       : 0          Router solicit     : 0                      
    Router advert      : 0          Neighbor solicit   : 1                      
    Neighbor advert    : 1          Redirected         : 0                      
    Rate limited       : 0          Cert path advert   : 0                      
                                                                                
  Received packets:                                                             
    Total              : 0          Format error       : 0                      
    Checksum error     : 0          Too short          : 0                      
    Bad code           : 0          Bad length         : 0                      
    Unknown info type  : 0          Unknown error type : 0                      
    Unreached          : 0          Prohibited         : 0                      
    Hop count exceeded : 0          Parameter problem  : 0                      
    Too big            : 0          Echoed             : 0                      
    Echo replied       : 0          Router solicit     : 0                      
    Router advert      : 0          Neighbor solicit   : 0                      
    Neighbor advert    : 0          Redirected         : 0                      
    Rate limited       : 0          Cert path solicit  : 0

**Table 1** Description of the display icmpv6 statistics command output
Item	Description
ICMPv6 protocol	ICMPv6 packet statistics.
Sent packets	Statistics about sent ICMPv6 packets.
Total	Total number of sent packets.
Unreached	Total number of sent ICMPv6 Destination Unreachable packets.
Prohibited	Total number of sent ICMPv6 Administratively Prohibited Unreachable packets.
Hop count exceeded	Total number of sent ICMPv6 packets whose hops exceed the limit.
Parameter problem	Total number of sent ICMPv6 Parameter Problem packets.
Too big	Total number of sent ICMPv6 Packet Too Big packets.
Echoed	Total number of sent ICMPv6 Echo Request packets.
Echo replied	Total number of sent ICMPv6 Echo Reply packets.
Router solicit	Total number of sent Router Solicitation (RS) packets.
Router advert	Total number of sent Router Advertisement (RA) packets.
Neighbor solicit	Total number of sent Neighbor Solicitation (NS) packets.
Neighbor advert	Total number of sent Neighbor Advertisement (NA) packets.
Redirected	Total number of sent ICMPv6 Redirect packets.
Rate limited	Total number of ICMPv6 packets that fail to be sent because of the rate limit.
Cert path advert	Total number of sent CPS packets. This parameter is not supported currently and displayed as 0.
Received packets	Statistics about received ICMPv6 packets.
Total	Total number of received packets.
Format error	Total number of received ICMPv6 packets with format errors.
Checksum error	Total number of received ICMPv6 packets with checksum errors.
Too short	Total number of received ICMPv6 packets that are too short.
Bad code	Total number of received ICMPv6 packets with code errors.
Bad length	Total number of received ICMPv6 packets with packet length errors.
Unknown info type	Total number of received ICMPv6 packets with an unknown information type.
Unknown error type	Total number of received ICMPv6 packets with an unknown error type.
Unreached	Total number of received ICMPv6 Destination Unreachable packets.
Prohibited	Total number of received ICMPv6 Administratively Prohibited Unreachable packets.
Hop count exceeded	Total number of received ICMPv6 packets whose hops exceed the limit.
Parameter problem	Total number of received ICMPv6 Parameter Problem packets.
Too big	Total number of received ICMPv6 packets that are oversized.
Echoed	Total number of received ICMPv6 Echo Request packets.
Echo replied	Total number of received ICMPv6 Echo Reply packets.
Router solicit	Total number of received RS packets.
Router advert	Total number of received RA packets.
Neighbor solicit	Total number of received NS packets.
Neighbor advert	Total number of received NA packets.
Redirected	Total number of received ICMPv6 Redirect packets.
Rate limited	Total number of ICMPv6 packets that fail to be received because of the rate limit.
Cert path solicit	Total number of received CPA packets. This parameter is not supported currently and displayed as 0.