The debugging ipv6 nd command debugs IPv6 packets and the ND state machine, and displays debugging information.
The undo debugging ipv6 nd command disables debugging of IPv6 packets and the ND state machine.
By default, the debugging of all ND command is disabled.
| Parameter | Description | Value |
|---|---|---|
| source src-address6 |
Specifies the source IPv6 address. |
The value is a 128-bit hexadecimal number, in the X:X:X:X:X:X:X:X format. |
| destination dest-address6 |
Specifies the destination IPv6 address. |
The value is a 128-bit hexadecimal number, in the X:X:X:X:X:X:X:X format. |
| interface interface-name |
Specifies the interface name. |
- |
| interface interface-type |
Specifies the interface type. |
- |
| interface interface-num |
Specifies the interface number. |
- |
| verbose verbose-length |
Specifies the length of the detailed packet information. |
The value is an integer ranging from 1 to 64, in bytes. By default, the value is 64 bytes. |
| number print-value |
Specifies the number of the packet information. |
The value is an integer ranging from 1 to 4294967295, bytes. By default, the value is 10. |
Usage Scenario
The debugging ipv6 nd command displays IPv6 ND packets and the information about the ND state machine for locating system exceptions.
Precautions
When the packet length exceeds the length specified by verbose-length, the information about the length specified by verbose-length is printed.
When the packet is shorter than verbose-length,the information about the actual length is printed.<HUAWEI> debugging ipv6 nd interface gigabitethernet 0/1/0 <HUAWEI> terminal debugging Info: Current terminal debugging is on. <HUAWEI> ping ipv6 -c 1 2001:db8::2 PING 2001:db8::2 : 56 data bytes, press CTRL_C to break Mar 30 2012 08:37:20.623 HUAWEI %%01ND/7/packet(d):CID=0x80730411;On The Interface gigabitethernet 0/1/0, Received NDMISS: 2001:db8::2 Mar 30 2012 08:37:20.623 HUAWEI %%01ND/7/packet(d):CID=0x80730411;On The Interface gigabitethernet 0/1/0, Adding NB Entry: 2001:db8::2 NB State : INCOMPLETE Mar 30 2012 08:37:20.623 HUAWEI %%01ND/7/packet(d):CID=0x80730411;On The Interface gigabitethernet 0/1/0, Sending NS to 2001:db8::FF00:2, IP6(Version = 6, TrafficClass = 192, FlowLabel = 0, PayloadLength = 32, HopLimit = 255, NextHeader = 58, Src = 2001:db8::1, Dst = 2001:db8::FF00:2), ICMP6(Type = 135(NS), Code = 0, Checksum = 0x8E98, Reserved = 0, TargetAddr = 2001:db8::2, Type = 1, Length = 1, SrcLLAddr = 00e0-fc12-3456) Mar 30 2012 08:37:20.713 HUAWEI %%01ND/7/packet(d):CID=0x80730411;On The Interface gigabitethernet 0/1/0, Sending NS to 2001:db8::FF00:2, IP6(Version = 6, TrafficClass = 192, FlowLabel = 0, PayloadLength = 32, HopLimit = 255, NextHeader = 58, Src = 2001:db8::1, Dst = 2001:db8::FF00:2), ICMP6(Type = 135(NS), Code = 0, Checksum = 0x8E98, Reserved = 0, TargetAddr = 2001:db8::2, Type = 1, Length = 1, SrcLLAddr = 00e0-fc12-3456) Request time out ---2001:db8::2 ping statistics--- 1 packet(s) transmitted 0 packet(s) received 100.00% packet loss round-trip min/avg/max=0/0/0 ms
| Item | Description |
|---|---|
| Received NDMISS | Received NDMISS event. |
| Adding NB Entry | Adding NB entry. |
| NB State | NB entry status:
|
| Sending NS to | Sending NS packets to the peer. |
| TrafficClass | Type of communication traffic. |
| FlowLabel | Flow label. |
| PayloadLength | Valid payload length. |
| HopLimit | Hop limit. |
| NextHeader | Next-hop packet header. |
| Src | Source IPv6 address. |
| Dst | Destination IPv6 address. |
| Code | ICMP packet code. |
| Checksum | ICMP packet checksum. |
| Reserved | Reserved word in the ICMP packet. |
| TargetAddr | Destination IP address in the ICMP packet. |
| Type | ICMP packet type. |
| Length | ICMP packet length. |
| SrcLLAddr | Source link-local IPv6 address. |
| CID | CID of the component to which the output information belongs. |
| Version | Version number. |
| ICMP6 | ICMP6 protocol. |