Quantum Scalar i500 Reference Manual page 18

Numerical syntax: Integer (32 bit)
Base syntax: INTEGER
Composed syntax: INTEGER
Status: current
Max access: read-only
Value list:
1: up(1)
2: down(2)
3: noIfIdentifier(3)
4: unknown(4)
5: notPresent(5)
Description:The current operational state of the interface. The noIfIdentifier(3) state indicates that no valid
Interface Identifier is assigned to the interface. This state usually indicates that the link-local interface
address failed Duplicate Address Detection.
• If ipv6IfAdminStatus is down(2) then ipv6IfOperStatus should be down(2).
• If ipv6IfAdminStatus is changed to up(1) then ipv6IfOperStatus should:
• change to up(1) if the interface is ready to transmit and receive network traffic;
• remain in the down(2) or noIfIdentifier(3) state if and only if there is a fault that prevents it from
going to the up(1) state;
• remain in the notPresent(5) state if the interface has missing (typically, lower layer)
components.
12 MIB Variables - IPv6 Information