Best effort

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Best effort describes a minimalist quality of service assurance in telecommunication networks . The operator of the network promises its users to handle incoming transmission requests as quickly as possible and within the framework of the resources available to him to the best of his ability. Best effort is therefore a blanket assurance of quality, in connection with graduated forms one speaks of quality of service .

In packet-switching networks, best effort means forwarding all incoming packets as long as there is still free transmission capacity in the network. An error-free and complete transmission is not guaranteed. If the capacity at a certain point on the transmission path is fully utilized, congestion will inevitably occur . It is up to the user or higher-level protocols such as TCP (see OSI model ) to ensure that communication is resumed after a temporary interruption in transmission. An example of a best effort network is today's Internet with its Internet protocol .

literature

  • Encyclopedia of Networking & Telecommunications ISBN 0-07-212005-3
  • Dhiman D. Chowdhury: High Speed ​​LAN Technology Handbook. Springer Verlag, Berlin / Heidelberg 2000, ISBN 978-3-642-08587-1 .
  • Reiner Schulze (Ed.): New Features in Contract Law. Sellier European Law Publishers, 2007, ISBN 978-3-86653-036-2 .

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