Upstream (network)

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In telecommunications or computer networks , upstream describes the direction against a prevailing flow of data from the source to the consumer. This is often the direction in which a request is directed to a server. The term is used both as a directional adjective and as a proportion of the available bandwidth as a noun .

In addition, downstream describes the opposite direction. See also there for application and common asymmetrical connection techniques for connecting households and consumers.

The activity or process during this data flow is uploading or uploading .

Individual evidence

  1. Andreas Bluschke, Michael Matthews, Reinhard Schiffel: access networks for telecommunications. Hanser, Munich 2004, p. 18.
  2. ITU-T G.992.1: Asymmetric digital subscriber line (ADSL) transceivers. 06-1999, p. 5.


  • Gerd Siegmund: Network technology. 5th edition, Hüthig, Heidelberg 2002, ISBN 3-8266-5021-2 .