Fix the subgraph

doc/Thesis.tex

@@ -33,7 +33,7 @@
 \include{Abstract}
 
 \tableofcontents
-%\listoffigures
+\listoffigures
 \listoftables
 
 \include{Introduction}

doc/graphviz/v6-v4-mixed.dot

@@ -1,5 +1,7 @@
 graph G {
     node [ shape="box"];
+    rankdir="LR";
+
 
     v6host1 [ label="IPv6 only host"];
     v6host2 [ label="IPv6 only host"];
@@ -24,6 +26,10 @@ graph G {
     nat64gw [ label="NAT64 translator", rank=max ];
 
     subgraph cluster_seperate {
+        label="Separated IPv6/IPv4 networks";
+
+        rank="max";
+
         v6host1--switchv6;
         v6host2--switchv6;
         v6host3--switchv6;
@@ -37,6 +43,8 @@ graph G {
     };
 
     subgraph cluster_mixed {
+        label="Mixed IPv6/IPv4 networks";
+        rank="min";
         v6host12--switchboth;
         v6host22--switchboth;
         v6host32--switchboth;
@@ -45,10 +53,6 @@ graph G {
         v4host22--switchboth;
         v4host32--switchboth;
 
-    }
-
-
-
-
+     }
 
 }