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Committed Information Rate

   Also found in: Wikipedia 0.07 sec.
(communications)Committed Information Rate - (CIR) The guaranteed average bandwidth of a virtual circuit in a frame relay network. The CIR plus the Excess Information Rate (EIR, burst rate) is equal to or less than the speed of the access port into the network.

The term CIR includes voice and non-data packets that are not included in the Committed Data Rate (CDR).

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With the A-100 and A-200, services supporting strict SLAs can be provisioned within seconds within flexible parameters, including Committed Information Rate (CIR), Excess Information Rate (EIR), priority, delay, and jitter.
16d standard, meaning that they support all services classes including best-effort, committed information rate (CIR) in both Real-Time and non Real-Time modes, and Unsolicited Grants Scheduling for delivering a constant bit rate (CBR) class of service.
Using trTCM, ingress service frames are marked for dropping according to a predefined bandwidth profile consisting of a committed information rate (CIR) and peak information rate (PIR).
 
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