diff --git a/ex06/circuitSwitching.png b/ex06/circuitSwitching.png
index 70c1751..ea1f9dc 100644
--- a/ex06/circuitSwitching.png
+++ b/ex06/circuitSwitching.png
Binary files differ
diff --git a/ex06/kn06.pdf b/ex06/kn06.pdf
index 1481f15..ad69c44 100644
--- a/ex06/kn06.pdf
+++ b/ex06/kn06.pdf
Binary files differ
diff --git a/ex06/kn06.tex b/ex06/kn06.tex
index 3b29deb..cec5bca 100644
--- a/ex06/kn06.tex
+++ b/ex06/kn06.tex
@@ -90,11 +90,16 @@
     \begin{enumerate}
         \item Circuit switching:
         \begin{itemize}
-            \item Setup time: 3 nodes to find: $3\cdot 3.1s=9.3s$
+            \item Setup time:
+            \begin{itemize}
+                \item 2 nodes to lookup: $2\cdot 3s=6s$ (A,B are known)
+                \item 3 lines to setup: $3\cdot 0.1s=0.3s$
+                \item ACK for setup over three lines $3\cdot 0.02s=0.06$
+                \item[$\Rightarrow$] $6.36s$
+            \end{itemize}
             \item Data Transmission Time: $\frac{80000 bit}{4800 bit/s}+3\cdot 0.02s=\frac{50}{3}s+0.06s \approx 16.7s$
-            \item Teardown time: %TODO: not sure whether this is right/necessary
-                nothing given, assume: $0s$
-            \item[$\rightarrow$] Transmission time: $\approx 27s$
+            \item Teardown time: not needed since data is transmitted before teardown
+            \item[$\rightarrow$] Transmission time: $\approx 23.1s$
             \includegraphics[width=.5\textwidth]{circuitSwitching.png}
         \end{itemize}
         \item Message switching: