EGEE is a project funded by the European Union under contract IST-2003-508833

Study of Performance Standards, kick off

(Task 1.1.1)

Robert StoyDFN

EGEE JRA4 Kick Off, Cork, 20.04.04

www.eu-egee.org

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Overview

OSI Layer Standardisation Organisation

Documents

4 (TCP,UDP,

others)

IETF

Active Measurements:IPPM Working Group RFCs and Internet Drafts

Passive Measurements:SNMP MIBs provided by various working groups

3 (IP)

2a (L2-VPNs, EoMPLS...)

2b (SDH/Sonet) ITU T

(G-Series Recommendations)

G.820 – G.829, ...

1 optical G.8201, ...

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Standardization IETF, RFCs

• Layer 3 Framework for IP Performance Metrics RFC 2330 A One-way Delay Metric for IPPM RFC 2679 A One-way Packet Loss Metric for IPPM RFC 2680 A Round-trip Delay Metric for IPPM RFC 2681 One-way Loss Pattern Sample Metrics RFC 3357 IP Packet Delay Variation Metric for IPPM RFC 3393

• Layer 4 IPPM Metrics for Measuring Connectivity RFC 2678 A Framework for Defining Empirical Bulk Transfer Capacity Metrics

RFC 3148 Network performance measurement for periodic streams

RFC 3432

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Standardization IETF, Internet Drafts

A One-way Active Measurement Protocol (OWAMP)• draft-ietf-ippm-owdp-07.txt

A One-way Active Measurement Protocol Requirements• draft-ietf-ippm-owdp-reqs-06.tx

IPPM metrics registry• draft-ietf-ippm-metrics-registry-05.txt

IPPM reporting MIB• draft-ietf-ippm-reporting-mib-05.txt

Packet Reordering Metric for IPPM• draft-ietf-ippm-reordering-05.txt

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Standardization ITU-T

• SDH and optical Quality and availability targets for end-to-end international constant

bit-rate digital paths • G.820–G.829

Error performance parameters and objectives for multi-operator international paths within the Optical Transport Network (OTN)

• G.8201

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Measurement Systems

• IPPM Measurement Systems Online Active Measurements Measurements of OWD, OWL, OWD, OWDJ Data Archive Presentation through web interface Examples: DFN-IPPM, RIPE-TTM

• Layer4 and Application Measurement Systems Not standardized

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Measurement Tools

• On IP layer lots of tools are exising, evolution to IPPM Measurement Systems and Metric Standardisation in IETF

• On Transport Layer (Layer 4) interesting metric for data intensive GRIDs:

• ‚Available Path Bandwidth‘ • TCP Throughput

measurement methods: state of the art:• active measurements with real data streams, example ‚iperf‘.

– heavy network load• Passive Measurements:

– Monitoring of router interfaces and data combination• Bandwidth estimation tools:

– research actvity, pilot apps available

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Other Working Groups

• GGF

• Internet2 WGs, e2epi