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Peak information rate (PIR) is a burstable rate set on routers and/or switches that allows throughput overhead. Related to committed information rate (CIR) 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. PIR is defined in MEF Standard 10.4 Subscriber Ethernet Service Attributes
Excess information rate (EIR) is the magnitude of the burst above the CIR (PIR = EIR + CIR).
Maximum information rate (MIR) in reference to broadband wireless refers to maximum bandwidth the subscriber unit will be delivered from the wireless access point in kbit/s.
See also
References
- "AT&T - ISP Solutions". att.com. Retrieved 2014-01-05.
- "Technical Documentation: peak-information-rate". juniper.net. Retrieved 2014-01-05.
- "MEF 10.4 Subscriber Ethernet Service Attributes". www.mef.net/resources/technical-specifications. December 2018. Retrieved 2019-11-26.
- "What is the Maximum Information Rate (MIR) on the ePMP product?". cambiumnetworks.com. 2013-10-08. Retrieved 2014-01-05.
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