Committed Information Rate


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Committed Information Rate

(communications)
(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).
References in periodicals archive ?
Virtual BellSouth Metro Ethernet Service provides four classes of service, committed information rate and service level agreements and can link locations using multipoint-to-multipoint, point-to- multipoint or point-to-point architecture.
The combination of 'always available' committed information rates and demand-assigned bandwidth, will give vessels the seamless, dynamic communications flexibility regardless of location.
The new integrated 900 MHz modules are based on the new Canopy Advantage(TM) platform and include Committed Information Rate (CIR), reduced latency and Virtual Local Area Network (VLAN) support.
Network throughput is very similar in concept to the Committed Information Rate (CIR) statistic that has been traditionally used on Frame Relay networks.
Customers selecting burstable plans can agree to pay for a committed information rate of bandwidth and can increase their bandwidth usage by bursting above their committed rates.
Porto Seguro has reduced monthly recurring WAN charges after bandwidth utilization reports showed a lower committed information rate (CIR) could be purchased from the service provider without impacting responsiveness of their client-server applications and databases.
Frame relay pricing is made up of four basic elements: 1) the committed information rate (CIR), 2) the port charge, 3) the access lines and, 4) the customer premise equipment (CPE).
CIR is critical in normal operation: Each port accessing a FR network will not exceed committed information rate, so long as the port is not subscribed by more than 100%.
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.
How does your carrier address the committed information rate (CIR) issue?
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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