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・ Traffic Management Act 2004
・ Traffic measurement (telecommunications)
・ Traffic message channel
・ Traffic mix
・ Traffic Motor Truck Corporation
・ Traffic noise
・ Traffic Operational Command Unit
・ Traffic operations practitioner specialist
・ Traffic optimization
・ Traffic paddle
・ Traffic park
・ Traffic pattern
・ Traffic pattern indicator
・ Traffic police
・ Traffic Police (Sri Lanka)
Traffic policing (communications)
・ Traffic Power
・ Traffic psychology
・ Traffic pumping
・ Traffic Radio
・ Traffic Ramaswamy
・ Traffic regulations
・ Traffic reporting
・ Traffic robots in Kinshasa
・ Traffic Safety (book)
・ Traffic Safety and the Driver
・ Traffic Safety Store
・ Traffic school
・ Traffic Separation Scheme
・ Traffic Server


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Traffic policing (communications) : ウィキペディア英語版
Traffic policing (communications)
In communications, traffic policing is the process of monitoring network traffic for compliance with a traffic contract and taking steps to enforce that contract. Traffic sources which are aware of a traffic contract may apply traffic shaping to ensure their output stays within the contract and is thus not discarded. Traffic exceeding a traffic contract may be discarded immediately, marked as non-compliant, or left as-is, depending on administrative policy and the characteristics of the excess traffic.
== Effects ==
The recipient of traffic that has been ''policed'' will observe packet loss distributed throughout periods when incoming traffic exceeded the contract. If the source does not limit its sending rate (for example, through a feedback mechanism), this will continue, and may appear to the recipient as if link errors or some other disruption is causing random packet loss. The received traffic, which has experienced policing en route, will typically comply with the contract, although jitter may be introduced by elements in the network downstream of the policer.
With reliable protocols, such as TCP as opposed to UDP, the dropped packets will not be acknowledged by the receiver, and therefore will be resent by the emitter, thus generating more traffic.

抄文引用元・出典: フリー百科事典『 ウィキペディア(Wikipedia)
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