Sets the administrative state of the SFCS switching
services for this SFCS module. This controls the
SFCS state at a module level. Regardless of the
per-interface state of each SFCS switching interface
and the state of active connections, writing the value
disabled(2) will cause the SFCS to immediately
shutdown. A gracefull shutdown will be attempted.
enabled(1) -- startup the SFCS
disabled(2) -- shutdown the SFCS
other(3) -- none of the following