Network protocols 2
- Created by: Tomiwaq
- Created on: 30-03-19 19:31
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- Network protocols
- Packets
- Data sent between networks are split into packets
- Every data packet has a header that controls its information
- The header controls the packet's final destinatio, the source address and the packet number
- The data packet's payload is a part of an email, document, web page or streamed video
- Also likely to include a checksum number
- A form of validation used to check that the payload hasn't been corrupted during transit
- Packet switching
- Used by routers to direct packets on networks
- 1) The sending device splits the data into packets to be sent across the network
- 2) Each packet is given a packet number to show the order of data
- 3) Each router reads the packet header and decides which way to send the packet next
- 4) The way the data is sent changes depending on network traffic
- 5) Packets arrive in the wrong order because they take different routes
- 4) The way the data is sent changes depending on network traffic
- 3) Each router reads the packet header and decides which way to send the packet next
- Packet switching is efficient because of numerous routes
- Packets
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