--- /dev/null
+simp destroy ".*"
+simp create -o sw1:rocker:sw1 tut tut.dot
+simp start tut
+while ! simp ssh tut sw1 --cmd "ping -c 1 localhost >/dev/null"; do sleep 1; done
+while ! simp ssh tut h1 --cmd "ping -c 1 localhost >/dev/null"; do sleep 1; done
+while ! simp ssh tut h2 --cmd "ping -c 1 localhost >/dev/null"; do sleep 1; done
+
+# bring up DUT ports
+
+simp ssh tut sw1 --cmd "sudo ifconfig sw1p1 11.0.0.1/24"
+simp ssh tut sw1 --cmd "sudo ifconfig sw1p2 12.0.0.1/24"
+
+# config IP on hosts
+
+simp ssh tut h1 --cmd "sudo ifconfig sw1p1 11.0.0.2/24"
+simp ssh tut h2 --cmd "sudo ifconfig sw1p1 12.0.0.2/24"
+
+# test...
+
+simp ssh tut h1 --cmd "ping -c10 11.0.0.1 >/dev/null"
+if [ $? -eq 1 ]; then exit 1; fi
+simp ssh tut h2 --cmd "ping -c10 12.0.0.1 >/dev/null"