# Burstable billing

burstable95e percentile burstable billingburstable rateburstable" internet bandwidth
Burstable billing is a method of measuring bandwidth based on peak use.wikipedia
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### Percentile

percentiles50th percentile85th percentile speed
The 95th percentile is a widely used mathematical calculation to evaluate the regular and sustained use of a network connection.
When ISPs bill "burstable" internet bandwidth, the 95th or 98th percentile usually cuts off the top 5% or 2% of bandwidth peaks in each month, and then bills at the nearest rate.

### Committed information rate

CIRcommitted information rate (CIR)
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 (CIR, or commitment) from an Internet service provider (ISP).
Above the CIR, an allowance of burstable bandwidth is often given, whose value can be expressed in terms of additional rate, known as the excess information rate (EIR), or as its absolute value, peak information rate (PIR).

### Bandwidth (computing)

bandwidthnetwork bandwidthbandwidths
Burstable billing is a method of measuring bandwidth based on peak use.

### Internet service provider

ISPinternet service providersISPs
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 (CIR, or commitment) from an Internet service provider (ISP).

### Sampling (signal processing)

sampling ratesamplingsample rate
The sampling interval, or how often samples (or data points) are taken, is an important factor in percentile calculation.

### Unit of observation

data pointdata pointsobservation
The sampling interval, or how often samples (or data points) are taken, is an important factor in percentile calculation.

### Bit

binary digitbitsbinary digits
Every data point represents the average bandwidth used during the sampling interval (e.g., five minutes) and is calculated as the number of bits transferred throughout the interval divided by the duration of the interval (e.g., 300 seconds).

### Bit rate

bitratedata ratedata transfer rate
The resulting value represents the average use rate for a single sampling interval and is expressed as bits per second (see data transfer rate).

### Throughput

maximum throughputBandwidthchannel efficiency
Bandwidth is measured (or sampled) from the switch or router and recorded in a log file.

### Sample (statistics)

samplesamplesstatistical sample
Bandwidth is measured (or sampled) from the switch or router and recorded in a log file.

### Multi Router Traffic Grapher

MRTG
MRTG - Used to review bandwidth usage and with patches, determine 95th percentile values.

### Patch (computing)

patchpatchespatched
MRTG - Used to review bandwidth usage and with patches, determine 95th percentile values.

### Cacti (software)

Cacti
Cacti - another tool for 95th percentile values also based on RRDtool

### RRDtool

RRD
Cacti - another tool for 95th percentile values also based on RRDtool

### Peak information rate

excess information rate
Peak information rate (PIR) is a burstable rate set on routers and/or switches that allows throughput overhead.

### Dedicated hosting service

dedicated serverdedicated serversmanaged hosting
This is also known as Burstable billing.

### Internet transit

transitIP TransitInternet transmission
The transit service is typically priced per megabit per second per month, and customers are often required to commit to a minimum volume of bandwidth, and usually to a minimum term of service as well, usually using a 95e percentile burstable billing scheme.

### Frame Relay

Frame-RelayframesLAPF
Frame Relay connections are often given a committed information rate (CIR) and an allowance of burstable bandwidth known as the extended information rate (EIR).