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Committed Information Rate

   Also found in: Acronyms, Wikipedia 0.01 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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The committed information rate (CIR) was only 256 bits per second," explains Bird.
Unlike the committed information rate in frame relay, IP services have no inherent mechanism for regulating the bandwidth on a connection unless CoS capability is invoked," said Steve Hindman, executive vice president of product management and marketing at Visual Networks.
After a thorough evaluation of its options, AFS selected the Atrica Carrier Ethernet platform for its ability to deliver end-to-end 50ms protection, flexible bandwidths for both Committed Information Rate (CIR) and Excess Information Rate (EIR) services, and differentiated service offerings based on Quality of Service (QoS).
 
 
 
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