-.It INT
-Temporarily increases debug level to 5.
-Send this signal again to revert to the original level.
-.It USR1
-Dumps the connection list to syslog.
-.It USR2
-Dumps virtual network device statistics, all known nodes, edges and subnets to syslog.
-.It WINCH
-Purges all information remembered about unreachable nodes.
+If the
+.Fl -logfile
+option is used, this will also close and reopen the log file,
+useful when log rotation is used.