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Internet Assigned Numbers Authority

Performance Metrics

Created
2020-03-19
Last Updated
2025-10-15
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Registries Included Below

Performance Metrics Registry

Registration Procedure(s)
Specification Required
Expert(s)
Greg Mirsky, Michael Scharf
Reference
[RFC8911]
Note
Summary category shown. Complete registry entries available in the URIs of each row.
Available Formats

CSV
IdentifierNameURIDescriptionReferenceChange ControllerVersion
0Reserved[RFC8912]IETF
1RTDelay_Active_IP-UDP-Periodic_RFC8912sec4_Seconds_95PercentileRTDelay_Active_IP-UDP-Periodic_RFC8912sec4_Seconds_95PercentileThis metric assesses the delay of a stream of packets exchanged between two hosts (which are the two measurement points). The output is the round-trip delay for all successfully exchanged packets expressed as the 95th percentile of their conditional delay distribution.[RFC8912]IETF1.0
2RTLoss_Active_IP-UDP-Periodic_RFC8912sec4_Percent_LossRatioRTLoss_Active_IP-UDP-Periodic_RFC8912sec4_Percent_LossRatioThis metric assesses the loss ratio of a stream of packets exchanged between two hosts (which are the two measurement points). The output is the round-trip loss ratio for all successfully exchanged packets expressed as a percentage.[RFC8912][RFC Errata 6758]IETF1.0
3OWPDV_Active_IP-UDP-Periodic_RFC8912sec5_Seconds_95PercentileOWPDV_Active_IP-UDP-Periodic_RFC8912sec5_Seconds_95PercentileThis metric assesses packet delay variation with respect to the minimum delay observed on the periodic stream. The output is expressed as the 95th percentile of the packet delay variation distribution.[RFC8912]IETF1.0
4RTDNS_Active_IP-UDP-Poisson_RFC8912sec6_Seconds_RawRTDNS_Active_IP-UDP-Poisson_RFC8912sec6_Seconds_RawThis is a metric for DNS Response performance from a network user's perspective, for a specific named resource. The metric can be measured repeatedly using different resource names. This metric assesses the response time, the interval from the query transmission to the response.[RFC8912]IETF1.0
5RLDNS_Active_IP-UDP-Poisson_RFC8912sec6_Logical_RawRLDNS_Active_IP-UDP-Poisson_RFC8912sec6_Logical_RawThis is a metric for DNS Response performance from a network user's perspective, for a specific named resource. The metric can be measured repeatedly using different resource names. This metric indicates that the response was deemed lost. In other words, the response time exceeded the maximum waiting time.[RFC8912]IETF1.0
6OWDelay_Active_IP-UDP-Poisson-Payload250B_RFC8912sec7_Seconds_95PercentileOWDelay_Active_IP-UDP-Poisson-Payload250B_RFC8912sec7_Seconds_95PercentileThis metric assesses the delay of a stream of packets exchanged between two hosts (or measurement points) and reports the 95Percentile of one-way delay for all successfully exchanged packets based on their conditional delay distribution.[RFC8912]IETF1.0
7OWDelay_Active_IP-UDP-Poisson-Payload250B_RFC8912sec7_Seconds_MeanOWDelay_Active_IP-UDP-Poisson-Payload250B_RFC8912sec7_Seconds_MeanThis metric assesses the delay of a stream of packets exchanged between two hosts (or measurement points) and reports the Mean of one-way delay for all successfully exchanged packets based on their conditional delay distribution.[RFC8912]IETF1.0
8OWDelay_Active_IP-UDP-Poisson-Payload250B_RFC8912sec7_Seconds_MinOWDelay_Active_IP-UDP-Poisson-Payload250B_RFC8912sec7_Seconds_MinThis metric assesses the delay of a stream of packets exchanged between two hosts (or measurement points) and reports the Min of one-way delay for all successfully exchanged packets based on their conditional delay distribution.[RFC8912]IETF1.0
9OWDelay_Active_IP-UDP-Poisson-Payload250B_RFC8912sec7_Seconds_MaxOWDelay_Active_IP-UDP-Poisson-Payload250B_RFC8912sec7_Seconds_MaxThis metric assesses the delay of a stream of packets exchanged between two hosts (or measurement points) and reports the Max of one-way delay for all successfully exchanged packets based on their conditional delay distribution.[RFC8912]IETF1.0
10OWDelay_Active_IP-UDP-Poisson-Payload250B_RFC8912sec7_Seconds_StdDevOWDelay_Active_IP-UDP-Poisson-Payload250B_RFC8912sec7_Seconds_StdDevThis metric assesses the delay of a stream of packets exchanged between two hosts (or measurement points) and reports the StdDev of one-way delay for all successfully exchanged packets based on their conditional delay distribution.[RFC8912]IETF1.0
11OWLoss_Active_IP-UDP-Poisson-Payload250B_RFC8912sec7_Percent_LossRatioOWLoss_Active_IP-UDP-Poisson-Payload250B_RFC8912sec7_Percent_LossRatioThis metric assesses the loss ratio of a stream of packets exchanged between two hosts (which are the two measurement points). The output is the one-way loss ratio for all transmitted packets expressed as a percentage.[RFC8912][RFC Errata 6758]IETF1.0
12OWDelay_Active_IP-UDP-Periodic20m-Payload142B_RFC8912sec8_Seconds_95PercentileOWDelay_Active_IP-UDP-Periodic20m-Payload142B_RFC8912sec8_Seconds_95PercentileThis metric assesses the delay of a stream of packets exchanged between two hosts (or measurement points) and reports the 95Percentile one-way delay for all successfully exchanged packets based on their conditional delay distribution.[RFC8912]IETF1.0
13OWDelay_Active_IP-UDP-Periodic20m-Payload142B_RFC8912sec8_Seconds_MeanOWDelay_Active_IP-UDP-Periodic20m-Payload142B_RFC8912sec8_Seconds_MeanThis metric assesses the delay of a stream of packets exchanged between two hosts (or measurement points) and reports the Mean one-way delay for all successfully exchanged packets based on their conditional delay distribution.[RFC8912]IETF1.0
14OWDelay_Active_IP-UDP-Periodic20m-Payload142B_RFC8912sec8_Seconds_MinOWDelay_Active_IP-UDP-Periodic20m-Payload142B_RFC8912sec8_Seconds_MinThis metric assesses the delay of a stream of packets exchanged between two hosts (or measurement points) and reports the Min one-way delay for all successfully exchanged packets based on their conditional delay distribution.[RFC8912]IETF1.0
15OWDelay_Active_IP-UDP-Periodic20m-Payload142B_RFC8912sec8_Seconds_MaxOWDelay_Active_IP-UDP-Periodic20m-Payload142B_RFC8912sec8_Seconds_MaxThis metric assesses the delay of a stream of packets exchanged between two hosts (or measurement points) and reports the Max one-way delay for all successfully exchanged packets based on their conditional delay distribution.[RFC8912]IETF1.0
16OWDelay_Active_IP-UDP-Periodic20m-Payload142B_RFC8912sec8_Seconds_StdDevOWDelay_Active_IP-UDP-Periodic20m-Payload142B_RFC8912sec8_Seconds_StdDevThis metric assesses the delay of a stream of packets exchanged between two hosts (or measurement points) and reports the StdDev one-way delay for all successfully exchanged packets based on their conditional delay distribution.[RFC8912]IETF1.0
17OWLoss_Active_IP-UDP-Periodic20m-Payload142B_RFC8912sec8_Percent_LossRatioOWLoss_Active_IP-UDP-Periodic20m-Payload142B_RFC8912sec8_Percent_LossRatioThis metric assesses the loss ratio of a stream of packets exchanged between two hosts (which are the two measurement points). The output is the one-way loss ratio for all transmitted packets expressed as a percentage.[RFC8912][RFC Errata 6758]IETF1.0
18RTDelay_Active_IP-ICMP-SendOnRcv_RFC8912sec9_Seconds_MeanRTDelay_Active_IP-ICMP-SendOnRcv_RFC8912sec9_Seconds_MeanThis metric assesses the delay of a stream of ICMP packets exchanged between two hosts (which are the two measurement points). The output is the round-trip delay for all successfully exchanged packets expressed as the Mean of their conditional delay distribution.[RFC8912]IETF1.0
19RTDelay_Active_IP-ICMP-SendOnRcv_RFC8912sec9_Seconds_MinRTDelay_Active_IP-ICMP-SendOnRcv_RFC8912sec9_Seconds_MinThis metric assesses the delay of a stream of ICMP packets exchanged between two hosts (which are the two measurement points). The output is the round-trip delay for all successfully exchanged packets expressed as the Min of their conditional delay distribution.[RFC8912]IETF1.0
20RTDelay_Active_IP-ICMP-SendOnRcv_RFC8912sec9_Seconds_MaxRTDelay_Active_IP-ICMP-SendOnRcv_RFC8912sec9_Seconds_MaxThis metric assesses the delay of a stream of ICMP packets exchanged between two hosts (which are the two measurement points). The output is the round-trip delay for all successfully exchanged packets expressed as the Max of their conditional delay distribution.[RFC8912]IETF1.0
21RTLoss_Active_IP-ICMP-SendOnRcv_RFC8912sec9_Percent_LossRatioRTLoss_Active_IP-ICMP-SendOnRcv_RFC8912sec9_Percent_LossRatioThis metric assesses the loss ratio of a stream of ICMP packets exchanged between two hosts (which are the two measurement points). The output is the round-trip loss ratio for all transmitted packets expressed as a percentage.[RFC8912][RFC Errata 6758]IETF1.0
22RTDelay_Passive_IP-TCP_RFC8912sec10_Seconds_MeanRTDelay_Passive_IP-TCP_RFC8912sec10_Seconds_MeanThis metric assesses the round-trip delay of TCP packets constituting a single connection, exchanged between two hosts. We consider the measurement of round-trip delay based on a single Observation Point (OP) [RFC7011] somewhere in the network. The output is the round-trip delay for all successfully exchanged packets expressed as the Mean of their conditional delay distribution.[RFC8912]IETF1.0
23RTDelay_Passive_IP-TCP_RFC8912sec10_Seconds_MinRTDelay_Passive_IP-TCP_RFC8912sec10_Seconds_MinThis metric assesses the round-trip delay of TCP packets constituting a single connection, exchanged between two hosts. We consider the measurement of round-trip delay based on a single Observation Point (OP) [RFC7011] somewhere in the network. The output is the round-trip delay for all successfully exchanged packets expressed as the Min of their conditional delay distribution.[RFC8912]IETF1.0
24RTDelay_Passive_IP-TCP_RFC8912sec10_Seconds_MaxRTDelay_Passive_IP-TCP_RFC8912sec10_Seconds_MaxThis metric assesses the round-trip delay of TCP packets constituting a single connection, exchanged between two hosts. We consider the measurement of round-trip delay based on a single Observation Point (OP) [RFC7011] somewhere in the network. The output is the round-trip delay for all successfully exchanged packets expressed as the Max of their conditional delay distribution.[RFC8912]IETF1.0
25RTDelay_Passive_IP-TCP-HS_RFC8912sec10_Seconds_SingletonRTDelay_Passive_IP-TCP-HS_RFC8912sec10_Seconds_Singleton RTDelay Singleton: This metric assesses the round-trip delay of TCP packets initiating a single connection (or 3-way handshake), exchanged between two hosts. We consider the measurement of round-trip delay based on a single Observation Point (OP) [RFC7011] somewhere in the network. The output is a single measurement of Round-trip delay, or Singleton.[RFC8912]IETF1.0
26RTLoss_Passive_IP-TCP_RFC8912sec10_Packet_CountRTLoss_Passive_IP-TCP_RFC8912sec10_Packet_CountThis metric assesses the estimated loss count for TCP packets constituting a single connection, exchanged between two hosts. We consider the measurement of round-trip delay based on a single Observation Point (OP) [RFC7011] somewhere in the network. The output is the estimated loss count for the measurement interval.[RFC8912]IETF1.0

Performance Metric Name Elements - Metric Type

Registration Procedure(s)
Specification Required
Expert(s)
Greg Mirsky, Michael Scharf
Reference
[RFC8911]
Available Formats

CSV
IdentifierNameDescriptionReferenceChange Controller
MetricTypeRTDelayRound-Trip Delay[RFC8911]IETF
MetricTypeRTDNSResponse Time Domain Name Service[RFC8911]IETF
MetricTypeRLDNSResponse Loss Domain Name Service[RFC8911]IETF
MetricTypeOWDelayOne-Way Delay[RFC8911]IETF
MetricTypeRTLossRound-Trip Loss[RFC8911]IETF
MetricTypeOWLossOne-Way Loss[RFC8911]IETF
MetricTypeOWPDVOne-Way Packet Delay Variation[RFC8911]IETF
MetricTypeOWIPDVOne-Way Inter-Packet Delay Variation[RFC8911]IETF
MetricTypeOWReorderOne-Way Packet Reordering[RFC8911]IETF
MetricTypeOWDuplicOne-Way Packet Duplication[RFC8911]IETF
MetricTypeOWBTCOne-Way Bulk Transport Capacity[RFC8911]IETF
MetricTypeOWMBMOne-Way Model-Based Metric[RFC8911]IETF
MetricTypeSPMonitorSingle-Point Monitor[RFC8911]IETF
MetricTypeMPMonitorMulti-Point Monitor[RFC8911]IETF

Performance Metric Name Elements - Method

Registration Procedure(s)
Specification Required
Expert(s)
Greg Mirsky, Michael Scharf
Reference
[RFC8911]
Available Formats

CSV
IdentifierNameDescriptionReferenceChange Controller
MethodActivedepends on a dedicated measurement packet stream and observations of the stream as described in [RFC7799][RFC8911]IETF
MethodPassivedepends *solely* on observation of one or more existing packet streams as described in [RFC7799][RFC8911]IETF
MethodHybrid Type 1Hybrid Type I obervations on one stream that combine both Active Methods and Passive Methods as described in [RFC7799][RFC8911]IETF
MethodHybrid Type 2Hybrid Type II obervations on two or more streams that combine both Active Methods and Passive Methods as described in [RFC7799][RFC8911]IETF
MethodSpatialspatial metric as described in [RFC5644][RFC8911]IETF

Performance Metric Name Elements - SubTypeMethod

Registration Procedure(s)
Specification Required
Expert(s)
Greg Mirsky, Michael Scharf
Reference
[RFC8911]
Available Formats

CSV
IdentifierNameDescriptionReferenceChange Controller
SubTypeMethodICMPInternet Control Message Protocol[RFC8911]IETF
SubTypeMethodIPInternet Protocol[RFC8911]IETF
SubTypeMethodDSCPxxwhere xx is replaced by a Diffserv code point[RFC8911]IETF
SubTypeMethodUDPUser Datagram Protocol[RFC8911]IETF
SubTypeMethodTCPTransport Control Protocol[RFC8911]IETF
SubTypeMethodQUICQUIC transport protocol[RFC8911]IETF
SubTypeMethodHSHand-Shake, such as TCP's 3-way HS[RFC8911]IETF
SubTypeMethodPoissonpacket generation using Poisson distribution[RFC8911]IETF
SubTypeMethodPeriodicperiodic packet generation[RFC8911]IETF
SubTypeMethodSendOnRcvSender keeps one packet in transit by sending when previous packet arrives[RFC8911]IETF
SubTypeMethodPayloadxxxxBwhere xxxx is replaced by an integer, the number of octets or 8-bit Bytes in the Payload[RFC8911]IETF
SubTypeMethodSustaninedBurstcapacity test, worst case[RFC8911]IETF
SubTypeMethodStandingQueuetest of bottleneck queue behavior[RFC8911]IETF

Performance Metric Name Elements - Spec

Registration Procedure(s)
Specification Required
Expert(s)
Greg Mirsky, Michael Scharf
Reference
[RFC8911]
Note
Spec contains an immutable document identifier combined with a document section identifier for the specifying document.     See Section 7.1.2 of [RFC8911].
Available Formats

CSV
IdentifierReference
Spec[RFC8911]

Performance Metric Name Elements - Units

Registration Procedure(s)
Specification Required
Expert(s)
Greg Mirsky, Michael Scharf
Reference
[RFC8911]
Available Formats

CSV
IdentifierNameDescriptionReferenceChange Controller
UnitsSeconds[RFC8911]IETF
UnitsRatiounitless[RFC8911]IETF
UnitsPercentvalue multiplied by 100%[RFC8911]IETF
UnitsLogical1 or 0[RFC8911]IETF
UnitsPackets[RFC8911]IETF
UnitsBPSbits per second[RFC8911]IETF
UnitsPPSpackets per second[RFC8911]IETF
UnitsEventTotalfor unitless counts[RFC8911]IETF
UnitsMultiplemore than one type of unit[RFC8911]IETF
UnitsEnumerateda list of outcomes[RFC8911]IETF
UnitsUnitless[RFC8911]IETF

Performance Metric Name Elements - Output

Registration Procedure(s)
Specification Required
Expert(s)
Greg Mirsky, Michael Scharf
Reference
[RFC8911]
Available Formats

CSV
IdentifierNameDescriptionReferenceChange Controller
OutputSingleton[RFC8911]IETF
OutputRawmultiple singletons[RFC8911]IETF
OutputCount[RFC8911]IETF
OutputMinimum[RFC8911]IETF
OutputMaximum[RFC8911]IETF
OutputMedian[RFC8911]IETF
OutputMean[RFC8911]IETF
Output95Percentile95th Percentile[RFC8911]IETF
Output99Percentile99th Percentile[RFC8911]IETF
OutputStdDevstandard deviation[RFC8911]IETF
OutputVariance[RFC8911]IETF
OutputPFIpass, fail, inconclusive[RFC8911]IETF
OutputFlowRecordsdescriptions of flows observed[RFC8911]IETF
OutputLossRatiolost packets to total packets, <=1[RFC8911]IETF

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