Transmission+protocols

TCP/IP stands for Transmission Control Protocol/Internet Protocol.

[|Transmission Control Protocol] (TCP) is concerned with taking a data message, breaking it into smaller chunks called packets and then re-assembling it again at the other end.

[|Internet Protocol] (IP) is concerned with the source address and destination address of the message.

These short videos explain the principals of TCP/IP

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You should be aware that TCP/IP is actually a suite of protocols. We will learn about some of the Internet Service Protocols which are a part of TCP/IP.

The IP address of the BBC home page is 212.58.251.197. The IP address of the Edinburgh Grid for Learning is 193.39.158.36.
 * Task 1:**

Try typing both these IP addresses into a browser window. What happens?

Find out more about TCP/IP, and the definition of an IP address by reading [|page 14-16 of the LT Scotland course notes].
 * Task 2:**

Complete Task 4 on [|page 17 the LT Scotland course notes].

Complete this TCP IP group task
 * Task 3:**

Now complete this exercise on TCP IP.
 * Task 4:**

Higher

 * Clearly explain the differnet roles of TCP and IP
 * Explain how packet switching works
 * Explain the difference between packet switching and circuit switching