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While in general less efficient than well-designed "hard state" protocols when tuned for a particular network regime, soft state protocols behave much better than hard state protocols in an unpredictable network environment such as the
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It is a term that is used for information that times out (goes away) unless refreshed, which allows protocols to recover from errors in certain services. The term was coined by
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which is useful for efficiency, but not essential, as it can be regenerated or replaced if needed. The term is often used in network
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Lui, J. C. S.; Misra, V.; Rubenstein, D. (2004). "On the robustness of soft state protocols".
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This article is about the computer science term. For the sociological term, see
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