Peak information rate

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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.[1][2]

Excess information rate (EIR) is the magnitude of the burst above the CIR (PIR = EIR + CIR).[citation needed]

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.[3]

See also[edit]


  1. ^ "AT&T - ISP Solutions". Retrieved 2014-01-05.
  2. ^ "Technical Documentation: peak-information-rate". Retrieved 2014-01-05.
  3. ^ "What is the Maximum Information Rate (MIR) on the ePMP product?". 2013-10-08. Retrieved 2014-01-05.