Displays the configuration and run time status for the DAD feature on the specified IPv6 interface.
| vr_name | Specifies a VR for which to display the DAD information. |
| ip_address | Specifies an IPv6 address for which to display the DAD information. |
| vlan_name | Specifies a VLAN name for which to display the DAD information. |
| vlan_list | Specifies a VLAN list of IDs to display the DAD information. |
| tentative | Displays information for IPv6 interfaces for which the status is up and the DAD check is incomplete. |
| valid | Displays information for IPv6 interfaces for which the status is up, the DAD check is complete, and no duplicate IPv6 addresses were detected. |
| duplicate | Displays information for IPv6 interfaces for which the status is down because a duplicate IPv6 address was detected. |
If you do not specify a VR or VRF, the command applies to the current VR context.
The vr all option displays DAD information for all IPv6 interfaces on the switch.
The following example displays the DAD feature status for all interfaces in the current VR context:
IPv6 Duplicate Address Detection
DAD Status : On
Max Solicitation Attempts : 1
Virtual Router Interface Flags Failures IP Address
-------------------------------- -------------------------------- ----- -------- --------------------------------
VR-Default vwest DlE-U 1 fe80::204:96ff:fe99:1424%vwest
VR-Default vwest -lE-U 0 fe80::1%vwest
VR-Default vwest --E-U 0 2010::1
Flags: (D) Duplicate address detected, (E) L2 Interface enabled,
(l) Link-local address, (L) Loopback enabled,
(t) Tentative due to the lack of a valid link-local address,
(T) Tentative address, (U) L2 Interface up
This command was first available in ExtremeXOS 12.6.
The vlan_list variable was added in ExtremeXOS 16.1.
The Conflict MAC heading was removed and Interface Failures heading added; the P (prefix address) flag was removed and the l (Link-local address) was added; the t flag was renamed (tentative due to the lack of a valid link-local address); and the detail option was removed in ExtremeXOS 30.1.
This command is available on ExtremeSwitching X435, X440-G2, X450-G2, X460-G2, X465, X590, X620, X690, and X695 series switches.