Temporarily increases debug level to 5.
Send this signal again to revert to the original level.
-@item WINCH
-Purges all information remembered about unreachable nodes.
-
@end table
@c ==================================================================
@item dump graph
Dump a graph of the VPN in dotty format.
+@item purge
+Purges all information remembered about unreachable nodes.
+
@end table