Chapter 22 IPv6
GS1920v2 Series User’s Guide
128
ICMPv6
Rate Limit
Error
Interval
This field displays the time period (in milliseconds) during which ICMPv6 error messages of up to
the bucket size can be transmitted. 0 means no limit.
ND DAD
Active
This field displays whether Neighbor Discovery (ND) Duplicate Address Detection (DAD) is
enabled on the interface.
Number of
DAD
Attempts
This field displays the number of consecutive neighbor solicitations the Switch sends for this
interface.
NS-Interval
(millisecon
d)
This field displays the time interval (in milliseconds) at which neighbor solicitations are re-sent for
this interface.
ND
Reachable
Time
(millisecon
d)
This field displays how long (in milliseconds) a neighbor is considered reachable for this interface.
Stateless
Address
Autoconfig
This field displays whether the Switch’s interface can automatically generate a link-local address
through stateless auto-configuration.
Link-Local
Address
This field displays the Switch’s link-local IP address and prefix generated by the interface. It also
shows whether the IP address is preferred, which means it is a valid address and can be used as a
sender or receiver address.
Global
Unicast
Address
This field displays the Switch’s global unicast address to identify this interface.
Joined
Group
Address
This field displays the IPv6 multicast addresses of groups the Switch’s interface joins.
DHCPv6 Client Active
This field displays whether the Switch acts as a DHCPv6 client to get an IPv6 address from a DHCPv6 server.
Identity Association
An Identity Association (IA) is a collection of addresses assigned to a DHCP client, through which the server and
client can manage a set of related IP addresses. Each IA must be associated with exactly one interface.
IA Type The IA type is the type of address in the IA. Each IA holds one type of address. IA_NA means an
identity association for non-temporary addresses and IA_TA is an identity association for
temporary addresses.
IAID Each IA consists of a unique IAID and associated IP information.
T1 This field displays the DHCPv6 T1 timer. After T1, the Switch sends the DHCPv6 server a Renew
message.
An IA_NA option contains the T1 and T2 fields, but an IA_TA option does not. The DHCPv6 server
uses T1 and T2 to control the time at which the client contacts with the server to extend the
lifetimes on any addresses in the IA_NA before the lifetimes expire.
T2 This field displays the DHCPv6 T2 timer. If the time T2 is reached and the server does not respond,
the Switch sends a Rebind message to any available server.
State This field displays the state of the TA. It shows
Active when the Switch obtains addresses from a DHCpv6 server and the TA is created.
Renew when the TA’s address lifetime expires and the Switch sends out a Renew message.
Rebind when the Switch does not receive a response from the original DHCPv6 server and sends
out a Rebind message to another DHCPv6 server.
SID This field displays the DHCPv6 server’s unique ID.
Address This field displays the Switch’s global address which is assigned by the DHCPv6 server.
Table 38 SYSTEM > IPv6 > IPv6 Status > IPv6 Interface Details (continued)
LABEL DESCRIPTION
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