The status of an interface which is participating in Flex Links operation. A value of 'forwarding' indicates that, the interface is participating in Flex Links operation and is actively forwarding traffic. A value of 'blocking' indicates that, interface is participating in Flex Links operation and is ready to forward traffic if the interface it backs up in Flex Links operation goes down. A value of 'down' indicates that, the interface participating in Flex Links operation has gone down. A value of 'waitingToSync' indicates that, the interface is participating in Flex Links operation and is waiting to sync with its peer interface. A value of 'waitingForPeerState' indicates that, the interface is participating in Flex Links operation and is waiting for its peer's state. A value of 'unknown' indicates that, the interface is participating Flex Links operation and has entered an unknown state. A value of 'vlbAll' indicates that, the interface is linkup and VLANs preferred on the peer interface are moved to this interface of the Flex Link pair. This means that this interface carries all preferred VLANs of the Flex Link pair. A value of 'vlbConfig' indicates that, the interface is linkup and VLANs preferred on this interface have moved to forwarding state on the interface. A value of 'vlbPreempt' indicates that, the interface is linkup and waiting for the timer to expire to move into 'vlbConfig' state.