Explain about flow control, Computer Networking

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Q. Explain about Flow Control?

- Signifies to ask the transmitter to stop/resume sending in data

- Required when

  • DTE to DCE speed > DCE to DCE speed

- (Example terminal speed = 115.2kbps and line speed = 33.6kbps in order to benefit from modem's data compression protocol)

  • Without flow control, the buffer within modem will overflow - sooner or later

- The receiving end take time to procedure the data and thus cannot be always ready to receive


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