Network protocols 1
- Created by: Tomiwaq
- Created on: 30-03-19 19:06
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- Network protocols
- Protocol rules
- A protocol is a set of rules for how devices communicate and transmit data
- Protocols cover
- How communication should be from start to end
- How the data should be organised
- What the devices should do if data goes missing
- MAC addresses
- Every device needs a unique ID so it can be found on a network
- MAC addresses are assigned to all network devices
- They are unique to the device and cannot be changed
- MAC addresses are 48 or 64 bit binary converted into hex
- Mainly used by Ethernet protocol on LANs
- LAN switches read it and direct it to the right device
- IP addresses
- Used when sending data between networks over the internet
- IP addresses are not linked to hardware
- Assigned either manually or automatically before the device can access the network
- Static IP addresses (manual) are permanent
- Static IP are very expensive
- Dynamic IP addresses (automatic) changes every time it connects
- Dynamic IP addresses are much cheaper
- IP addresses are either 32 or 128 bit binary numbers
- Protocol rules
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