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Internet communication - Coggle Diagram
Internet communication
switching
Circuit
involves creating a communication connection between two endpoints for the duration of a phone call or transfer of data
Packet
sends packets across a networks that have multiple connections with multiple routes through to a destination
data packets
when sending across a network, data is broken into chunks called data packets
trailer(end of packet flag, checksum) + payload(data) + header(sender's IP address, recipient's IP address, protocol, packet number x of y
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packet trailer
contains error checking components that verify the data received in the payload has not been corrupted or transfered
if the initial checksum doesn't match the recalculated one at the destionation end, then the data has become corrupted and is refused and a new copy is requested to be sent again
routers
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looks up the destination IP address in its routing table to find the best router to forward the packet to
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Protocol
set of rules, or a formal description, of the format of a digital transmission
it covers the size of the packets, the contents and the format of the header, the error detection and correction procedure
Gateaway
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networks, which use different transmissions media may require a gateaway
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TCP/IP protocol stack
a set of rules used in turn, to format a message so it can be sent over a network
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