Network, Networking Technology, Data Communication Terms, Glossary and Dictionary

CIR: Committed Information Rate

Committed Information Rate (CIR), one of parameters in a Service Level Agreement (SLA), is the data transfer rate for an individual virtual circuit (VC) in an ATM or Frame Relay network, for which the provider commits to deliver. The provider may send any data in excess of this rate for this VC if its network has capacity at the time. This choice typically affects the price of each VC.

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CIR: Committed Information Rate