HP Comware 5 Debug Manual Vol 2

Remove interface ethernet1/1.
// Interface Ethernet 1/1 was removed.
# Display ND snooping entries.
<Sysname> display ipv6 nd snooping
IPv6 Address MAC Address VID Interface Aging Status
3001::3 0015-e943-820e 1 Eth1/1 24 Bound
---- Total entries: 1 ----
# Enable ND snooping packet debugging. When a device receives an NA packet that contains
inconsistent information with that of the existing ND snooping entry, output similar to the following
example is generated:
<Sysname> debugging ipv6 nd snooping packet
*Jun 23 16:36:16:718 2009 Sysname ND/7/ ND SNOOPING_PACKET:
ND Active-ACK Status Changed (IP: 3001::3 VLAN ID: 1):
State: Bound ----> OldSent
Trigger: Received a changed packet. MAC: 0015-e943-820d, Port: Ethernet1/1
// A packet with MAC address 0015-e943-820d was received on Ethernet 1/1. The packet was not
consistent with the existing entry, and the active acknowledgement status of the ND snooping entry
changed from Bound to OldSent.
*Jun 23 16:36:16:719 2009 Sysname ND/7/ND SNOOPING_PACKET:
Send a DAD NS packet. IPv6 address: 3001::3, MAC: 0015-e943-820e, Port: Ethernet1/
1, VLAN ID: 1
*Jun 23 16:36:17:719 2009 Sysname ND/7/ND SNOOPING_PACKET:
Send a DAD NS packet. IPv6 address: 3001::3, MAC: 0015-e943-820e, Port: Ethernet1/
1, VLAN ID: 1
*Jun 23 16:36:18:719 2009 Sysname ND/7/ND SNOOPING_PACKET:
Send a DAD NS packet. IPv6 address: 3001::3, MAC: 0015-e943-820e, Port: Ethernet1/
1, VLAN ID: 1
// Three DAD NS messages were sent out to check the validity of the existing entry.
*Jun 23 16:36:21:016 2009 Sysname ND/7/ND SNOOPING_PACKET:
ND Active-ACK Status Changed (IP: 3001::3 VLAN ID: 0x1):
State: OldSent ----> NewSent
Trigger: Time out for old user.
// Receiving NA messages timed out. The active acknowledgement status of the ND snooping entry
changed from OldSent to NewSent.
*Jun 23 16:36:21:017 2009 Sysname ND/7/ND SNOOPING_PACKET:
Send a DAD NS packet. IPv6 address: 3001::3, MAC: 0015-e943-820d, Port: Ethernet1/
1, VLAN ID: 1
*Jun 23 16:36:22:017 2009 Sysname ND/7/ND SNOOPING_PACKET:
Send a DAD NS packet. IPv6 address: 3001::3, MAC: 0015-e943-820d,Port: Ethernet1/
1, VLAN ID: 1
*Jun 23 16:36:23:017 2009 Sysname ND/7/ND SNOOPING_PACKET:
Send a DAD NS packet. IPv6 address: 3001::3, MAC: 0015-e943-820d, Port: Ethernet1/
1, VLAN ID: 1
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