56 lines
1.7 KiB
Markdown
56 lines
1.7 KiB
Markdown
---
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title: Transport Control Protocol (TCP)
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author: Carl Kittelberger
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papersize: a4
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classoption: oneside
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mainfont: Arial
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sansfont: Arial
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header-includes:
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- \usepackage{longtable}
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---
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TCP ist ein *Layer-4-Protokoll*. Es addressiert Anwendungen über **Ports**.
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- *reliable* -- zuverlässig
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- *connection oriented* -- verbindungsorientiert
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Die folgenden Phasen werden in dieser Reihenfolge ausgeführt:
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# Verbindungsaufbau
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```commute
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% this needs to be integrated with https://github.com/sdiehl/cats
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\node[] (server) {server};
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\node[left = of server] (client) {client};
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\node[below of=server, node distance=5cm] (server_ground) {};
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\node[below of=client, node distance=5cm] (client_ground) {};
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\draw (client) -- (client_ground);
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\draw (server) -- (server_ground);
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\draw[->] ([yshift=-1cm]client.south) -- ([yshift=-1cm]server.south) node[above] {syn};
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\draw[->] ([yshift=-2cm]server.south) -- ([yshift=-2cm]client.south) node[above] {ack+syn};
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\draw[->] ([yshift=-3cm]client.south) -- ([yshift=-3cm]server.south) node[above] {ack};
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```
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# Datenaustausch
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```commute
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% this needs to be integrated with https://github.com/sdiehl/cats
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\node[] (server) {server};
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\node[left = of server] (client) {client};
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\node[below of=server, node distance=5cm] (server_ground) {};
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\node[below of=client, node distance=5cm] (client_ground) {};
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\draw (client) -- (client_ground);
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\draw (server) -- (server_ground);
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\draw[->] ([yshift=-1cm]client.south) -- ([yshift=-1cm]server.south) node[above] {ack: Sequence Number, Datenlänge};
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\draw[->] ([yshift=-2cm]server.south) -- ([yshift=-2cm]client.south) node[above] {ack: Acknowledgement Number};
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\draw[->] ([yshift=-3cm]client.south) -- ([yshift=-3cm]server.south) node[above] {ack: Sequence Number...};
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```
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