[det]tipc_setopt(+Socket, 
+Option)Sets options on the socket. Defined options are:
importance(+Priority)- Allow sockets to assign a priority to their traffic. Priority is one of 
: 
low (default), medium, high, or critical. 
src_droppable(+Boolean)- Allow TIPC to silently discard packets in congested situations, rather 
than queuing them for later transmission.
 
dest_droppable(+Boolean)- Allow TIPC to silently discard packets in congested situations, rather 
than returning them to the sender as undeliverable.
 
conn_timeout(+Seconds)- Specifies the time interval that tipc_connect/2 
will use before abandoning a connection attempt. Default: 8.000 sec.