From 303f6033af14b7250ab2e320afd8077da6b288ec Mon Sep 17 00:00:00 2001
From: Carl Kittelberger <icedream@icedream.pw>
Date: Thu, 22 Mar 2018 10:39:12 +0100
Subject: [PATCH] Add new Markdown files.

---
 05-Lehrer_VLAN.md | 13 +++++++++++
 06-Lehrer_STP.md  |  6 ++++++
 08_Lehrer_TCP.md  | 55 +++++++++++++++++++++++++++++++++++++++++++++++
 3 files changed, 74 insertions(+)
 create mode 100644 05-Lehrer_VLAN.md
 create mode 100644 08_Lehrer_TCP.md

diff --git a/05-Lehrer_VLAN.md b/05-Lehrer_VLAN.md
new file mode 100644
index 0000000..9c4d829
--- /dev/null
+++ b/05-Lehrer_VLAN.md
@@ -0,0 +1,13 @@
+---
+title: VLAN
+author: Carl Kittelberger
+
+papersize: a4
+classoption: oneside
+mainfont: Arial
+sansfont: Arial
+
+header-includes:
+  - \usepackage{longtable}
+---
+
diff --git a/06-Lehrer_STP.md b/06-Lehrer_STP.md
index 4faf736..6665c9a 100644
--- a/06-Lehrer_STP.md
+++ b/06-Lehrer_STP.md
@@ -32,3 +32,9 @@ Jeder Switch aktiviert *eine* Leitung zum Root-Switch hin.
 
 → Der Pfad von Switch zum Root-Switch mit den geringsten Gesamtkosten (**Root-Path-costs**) wird aktiviert.
 → **Rootpath**. Der Port am Switch, der zum Root führt ist der **Rootport**.
+
+→ Bei gleichen Pfadkosten wird der Switchport (Steckplatz) mit der kleineren Nummer (entsprechend höherer Priorität) aktiviert.
+
+![](img/06-stp/stp_komplett.png)
+
+`RPK = 15`
\ No newline at end of file
diff --git a/08_Lehrer_TCP.md b/08_Lehrer_TCP.md
new file mode 100644
index 0000000..358562c
--- /dev/null
+++ b/08_Lehrer_TCP.md
@@ -0,0 +1,55 @@
+---
+title: Transport Control Protocol (TCP)
+author: Carl Kittelberger
+
+papersize: a4
+classoption: oneside
+mainfont: Arial
+sansfont: Arial
+
+header-includes:
+  - \usepackage{longtable}
+---
+
+TCP ist ein *Layer-4-Protokoll*. Es addressiert Anwendungen über **Ports**.
+
+- *reliable* -- zuverlässig
+- *connection oriented* -- verbindungsorientiert
+
+Die folgenden Phasen werden in dieser Reihenfolge ausgeführt:
+
+# Verbindungsaufbau
+
+```commute
+% this needs to be integrated with https://github.com/sdiehl/cats
+
+\node[] (server) {server};
+\node[left = of server] (client) {client};
+
+\node[below of=server, node distance=5cm] (server_ground) {};
+\node[below of=client, node distance=5cm] (client_ground) {};
+
+\draw (client) -- (client_ground);
+\draw (server) -- (server_ground);
+\draw[->] ([yshift=-1cm]client.south) -- ([yshift=-1cm]server.south) node[above] {syn};
+\draw[->] ([yshift=-2cm]server.south) -- ([yshift=-2cm]client.south) node[above] {ack+syn};
+\draw[->] ([yshift=-3cm]client.south) -- ([yshift=-3cm]server.south) node[above] {ack};
+```
+
+# Datenaustausch
+
+```commute
+% this needs to be integrated with https://github.com/sdiehl/cats
+
+\node[] (server) {server};
+\node[left = of server] (client) {client};
+
+\node[below of=server, node distance=5cm] (server_ground) {};
+\node[below of=client, node distance=5cm] (client_ground) {};
+
+\draw (client) -- (client_ground);
+\draw (server) -- (server_ground);
+\draw[->] ([yshift=-1cm]client.south) -- ([yshift=-1cm]server.south) node[above] {ack: Sequence Number, Datenlänge};
+\draw[->] ([yshift=-2cm]server.south) -- ([yshift=-2cm]client.south) node[above] {ack: Acknowledgement Number};
+\draw[->] ([yshift=-3cm]client.south) -- ([yshift=-3cm]server.south) node[above] {ack: Sequence Number...};
+```