-MAX_PARALLEL_TOPOLOGY_CONFIG_OPERATIONS = 5
-MAX_PARALLEL_OVERLAY_CONNECT_OPERATIONS = 50
-#PREFIX = xterm -geometry 100x85 -T peer1 -e libtool --mode=execute gdb --args
+OVERLAY_TOPOLOGY = RANDOM
+OVERLAY_RANDOM_LINKS = 1000
+OPERATION_TIMEOUT = 45 s
+# LOG_FILE = /tmp/testbed.log
+SETUP_TIMEOUT = 30m
+MAX_OPEN_FDS = 512