Access Methods

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Definition
The rules on how data goes inside the cables and also on how the data goes outside of the cables.

Types
  1. CSMA
  2. Token Passing

CSMA
It stands for Carrier - Sense Multiple Access.

Types
Carrier - Sense Multiple Access/ Collision Detection
Carrier - Sense Multiple Access/ Collision Avoidance

CSMA/CD
Each computer on the network including clients and servers, it checks the cable for network traffic. This means the devices have to listen the cable where you must send one by one to avoid collision. If collision occur, the message will be sent.
Therefore, if there's a sound, cannot send message and if there's no sound, can freely send message.

CSMA/CA
Each computer have to queue to avoid collision.


Token Passing
Token is passed around the ring from node to node. It will turn around on the ring until someone want to sends a message to the receiver. When the message is received to the receiver, it will turn around again.

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