The current state of an active user session. Each state
code is explained below:
unknown: The current state of the tunnel's
session is unknown.
opening: The user session has just been
initiated through a tunnel and is
pending for the remote end reply
to complete the process.
open: The user session is active.
closing: The user session has just been
closed and is pending for the
remote end reply to complete the
process.
waitingForTunnel: The user session is in this state
when the tunnel which this session
is going through is still in
CLOSED state. It waits for the
tunnel to become OPEN before the
session is allow to be fully
established.