diff --git a/gennet-changed.ospf b/gennet-changed.ospf
new file mode 100644
index 0000000..ed040d1
--- /dev/null
+++ b/gennet-changed.ospf
@@ -0,0 +1,94 @@
+BIRD 2.0.8 ready.
+
+area 0.0.0.1
+
+	router 172.23.100.1
+		distance 10
+		network 172.23.4.0/24 metric 10
+		network 172.23.6.0/24 metric 10
+
+	router 172.23.100.2
+		distance 10
+		network 172.23.5.0/24 metric 10
+		network 172.23.6.0/24 metric 10
+
+	router 172.23.100.3
+		distance 20
+		network 172.23.2.0/24 metric 10
+		network 172.23.4.0/24 metric 10
+
+	router 172.23.100.4
+		distance 20
+		network 172.23.3.0/24 metric 10
+		network 172.23.4.0/24 metric 10
+
+	router 172.23.100.5
+		distance 20
+		stubnet 172.23.2.0/24 metric 10
+		network 172.23.5.0/24 metric 10
+
+	#router 172.23.100.6 # It failed
+	#	distance 20
+	#	network 172.23.3.0/24 metric 10
+	#	network 172.23.5.0/24 metric 10
+
+	router 172.23.100.7
+		distance 30
+		network 172.23.1.0/24 metric 10
+		network 172.23.3.0/24 metric 20 # more costly now
+
+	router 172.23.100.8
+		distance 30
+		network 172.23.1.0/24 metric 10
+		network 172.23.2.0/24 metric 10
+
+	router 172.23.100.9
+		distance 40
+		network 172.23.1.0/24 metric 10
+
+	router 172.23.100.10
+		distance 0
+		network 172.23.6.0/24 metric 10
+		stubnet 172.23.7.0/24 metric 10
+
+	network 172.23.1.0/24
+		dr 172.23.100.9
+		distance 40
+		router 172.23.100.9
+		router 172.23.100.7
+		router 172.23.100.8
+
+	network 172.23.2.0/24
+		dr 172.23.100.8
+		distance 30
+		router 172.23.100.8
+		router 172.23.100.3
+	#	router 172.23.100.5 # Failed switch?
+
+	network 172.23.3.0/24
+		dr 172.23.100.7
+		distance 30
+		router 172.23.100.7
+		router 172.23.100.4
+		#router 172.23.100.6
+
+	network 172.23.4.0/24
+		dr 172.23.100.4
+		distance 20
+		router 172.23.100.4
+		router 172.23.100.1
+		router 172.23.100.3
+
+	network 172.23.5.0/24
+		dr 172.23.100.5
+		distance 20
+		#router 172.23.100.6
+		router 172.23.100.2
+		router 172.23.100.5
+
+	network 172.23.6.0/24
+		dr 172.23.100.10
+		distance 10
+		router 172.23.100.10
+		router 172.23.100.1
+		router 172.23.100.2
diff --git a/gennet.ospf b/gennet.ospf
new file mode 100644
index 0000000..590e15d
--- /dev/null
+++ b/gennet.ospf
@@ -0,0 +1,94 @@
+BIRD 2.0.8 ready.
+
+area 0.0.0.1
+
+	router 172.23.100.1
+		distance 10
+		network 172.23.4.0/24 metric 10
+		network 172.23.6.0/24 metric 10
+
+	router 172.23.100.2
+		distance 10
+		network 172.23.5.0/24 metric 10
+		network 172.23.6.0/24 metric 10
+
+	router 172.23.100.3
+		distance 20
+		network 172.23.2.0/24 metric 10
+		network 172.23.4.0/24 metric 10
+
+	router 172.23.100.4
+		distance 20
+		network 172.23.3.0/24 metric 10
+		network 172.23.4.0/24 metric 10
+
+	router 172.23.100.5
+		distance 20
+		network 172.23.2.0/24 metric 10
+		network 172.23.5.0/24 metric 10
+
+	router 172.23.100.6
+		distance 20
+		network 172.23.3.0/24 metric 10
+		network 172.23.5.0/24 metric 10
+
+	router 172.23.100.7
+		distance 30
+		network 172.23.1.0/24 metric 10
+		network 172.23.3.0/24 metric 10
+
+	router 172.23.100.8
+		distance 30
+		network 172.23.1.0/24 metric 10
+		network 172.23.2.0/24 metric 10
+
+	router 172.23.100.9
+		distance 40
+		network 172.23.1.0/24 metric 10
+
+	router 172.23.100.10
+		distance 0
+		network 172.23.6.0/24 metric 10
+		stubnet 172.23.7.0/24 metric 10
+
+	network 172.23.1.0/24
+		dr 172.23.100.9
+		distance 40
+		router 172.23.100.9
+		router 172.23.100.7
+		router 172.23.100.8
+
+	network 172.23.2.0/24
+		dr 172.23.100.8
+		distance 30
+		router 172.23.100.8
+		router 172.23.100.3
+		router 172.23.100.5
+
+	network 172.23.3.0/24
+		dr 172.23.100.7
+		distance 30
+		router 172.23.100.7
+		router 172.23.100.4
+		router 172.23.100.6
+
+	network 172.23.4.0/24
+		dr 172.23.100.4
+		distance 20
+		router 172.23.100.4
+		router 172.23.100.1
+		router 172.23.100.3
+
+	network 172.23.5.0/24
+		dr 172.23.100.6
+		distance 20
+		router 172.23.100.6
+		router 172.23.100.2
+		router 172.23.100.5
+
+	network 172.23.6.0/24
+		dr 172.23.100.10
+		distance 10
+		router 172.23.100.10
+		router 172.23.100.1
+		router 172.23.100.2
diff --git a/gennet.visu b/gennet.visu
new file mode 100644
index 0000000..005d557
--- /dev/null
+++ b/gennet.visu
@@ -0,0 +1,58 @@
+visualisation
+	router 172.23.100.1
+		position 1430 210
+
+	router 172.23.100.2
+		position 1430 750
+
+	router 172.23.100.3
+		position 850 110
+
+	router 172.23.100.4
+		position 850 330
+
+	router 172.23.100.5
+		position 850 660
+
+	router 172.23.100.6
+		position 850 880
+
+	router 172.23.100.7
+		position 270 750
+
+	router 172.23.100.8
+		position 270 220
+
+	router 172.23.100.9
+		position 90 620
+
+	router 172.23.100.10
+		position 1650 340
+
+	stubnet 172.23.7.0/24
+		router 172.23.100.10
+		position 1860 480
+
+	network 172.23.1.0/24
+		dr 172.23.100.9
+		position 280 480
+
+	network 172.23.2.0/24
+		dr 172.23.100.8
+		position 580 200
+
+	network 172.23.3.0/24
+		dr 172.23.100.7
+		position 580 780
+
+	network 172.23.4.0/24
+		dr 172.23.100.4
+		position 1150 200
+
+	network 172.23.5.0/24
+		dr 172.23.100.6
+		position 1150 780
+
+	network 172.23.6.0/24
+		dr 172.23.100.10
+		position 1430 480