Peak Information Rate
Encyclopedia
Peak information rate is a burstable rate
Burstable billing
Burstable billing is a method of measuring bandwidth based on peak utilization. It also allows usage to exceed a specified threshold for brief periods of time without the financial penalty of purchasing a higher Committed Information Rate from an Internet service provider .Most ISPs use a five...

 set on routers and/or switches that allows throughput overhead. Related to Committed Information Rate
Committed Information Rate
Committed information rate or CIR in a Frame relay network is the average bandwidth for a virtual circuit guaranteed by an ISP to work under normal conditions. At any given time, the bandwidth should not fall below this committed figure...

 which is a committed rate speed guaranteed/capped. For example, a CIR of 10 Mbit/s PIR of 12 Mbit/s allows you access to 10 Mbit/s minimum speed with burst/spike control that allows a throttle of an additional 2 Mbit/s. (This allows for data transmission to "settle" into a flow.)

Maximum Information Rate (MIR) in reference to Broadband Wireless refers to maximum bandwidth the Subscriber Unit will be delivered from the wireless access point
Wireless access point
In computer networking, a wireless access point is a device that allows wireless devices to connect to a wired network using Wi-Fi, Bluetooth or related standards...

in kbit/s.
The source of this article is wikipedia, the free encyclopedia.  The text of this article is licensed under the GFDL.
 
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