class of service (CoS)

A class of service (CoS) is generally a classification feature for the authorizationlevel of users and for the handling and prioritization of data packets. For example, the various service classes can be handled and prioritized differently in queuing. For the different services and protocols, the service classes are therefore also designated differently. InIEEE 802.1p, Class of Service (CoS) stands for the classification ofdata traffic within a LAN on the basis of different services such as e-mail, file transfer, voice or video. Each class of service has its own priority, which is taken into account and processed accordingly during queuing. In contrast to quality of service(QoS), CoS cannot allocate bandwidth, but sends data packets that are transmitted according to the best-effort principle. CoS operates at the

Englisch:	class of service - CoS
Updated at:	31.10.2013
#Words:	126
Links:	class, service, classification, authorization, level
Translations:	DE
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