This attribute reflects the current state of the connection. The
pathDown state indicates that the application has not yet signalled
for a path. The selectingRoute state occurs when a request has been
sent to the route selector and it has not yet responded. The
connectingState occurs while a path is being established. The
pathUp state is the normal operational state of a path. The
pathDownRetrying state indicates a path that attempted route
selection but received no route and is now waiting to retry route
selection again.