IPPM measurements measurements, G , G- -WiN, 6WiN and GANT(2 WiN, - - PowerPoint PPT Presentation

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IPPM measurements measurements, G , G- -WiN, 6WiN and GANT(2 WiN, 6WiN and GANT(2 ) IPPM ) Stephan Kraft Stephan Kraft 14.12.2004 14.12.2004 Table of Contents Contents Table of ! DFN- DFN -Labor@RRZE Labor@RRZE who who

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IPPM IPPM measurements measurements, G , G-

  • WiN, 6WiN and GÉANT(2

WiN, 6WiN and GÉANT(2) )

Stephan Kraft Stephan Kraft 14.12.2004 14.12.2004

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  • S. Kraft - 6QM-workshop 14.12.2004

Table of Table of Contents Contents

! ! DFN DFN-

  • Labor@RRZE

Labor@RRZE – – who who are are we we? ? ! ! IPPM IPPM-

  • DFN Measurement System

DFN Measurement System – – that´s that´s what what we we do do ! ! Examples Examples: :

! ! G G-

  • WiN

WiN ! ! 6WiN 6WiN ! ! GÉANT(2) GÉANT(2)

! ! Contact Contact

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DFN DFN-

  • Labor@RRZE

Labor@RRZE – – who who we we are are

! ! RRZE RRZE

! ! Regional Computing Center Erlangen Regional Computing Center Erlangen ! ! IT service for the University Erlangen IT service for the University Erlangen-

  • Nürnberg

Nürnberg

! ! DFN DFN

! ! German research network provider German research network provider

! ! DFN DFN-

  • Labor@RRZE

Labor@RRZE

! ! Research project of the DFN at the RRZE Research project of the DFN at the RRZE ! ! Network hardware tests Network hardware tests ! ! Development and operation of an IP accounting system Development and operation of an IP accounting system ! ! Quality assurance for the G Quality assurance for the G-

  • WiN SDH/WDM core network

WiN SDH/WDM core network ! ! Development and operation of an IPPM measurement system Development and operation of an IPPM measurement system

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IPPM IPPM-

  • DFN Measurement System

DFN Measurement System

! ! Intention of the measurements Intention of the measurements

! ! Academic interest to determine the IP Quality of Service Academic interest to determine the IP Quality of Service parameters parameters ! ! Verification of provider's network failure data Verification of provider's network failure data ! ! Early warning system for network failure Early warning system for network failure ! ! Correlation of QoS parameters with other network Correlation of QoS parameters with other network parameters parameters ! ! Throughput Throughput ! ! Visual quality of video conferencing Visual quality of video conferencing ! ! Passive delay measurement Passive delay measurement ! ! Analysis of customer's network performance Analysis of customer's network performance ! ! Collaboration with DFN video conferencing team Collaboration with DFN video conferencing team ! ! Mobile boxes Mobile boxes ! ! Second network interfaces Second network interfaces

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IPPM IPPM-

  • DFN Measurement System

DFN Measurement System

! ! Active measurement Active measurement ! ! UDP UDP-

  • Packets with timestamp

Packets with timestamp ! ! Packets are sent in groups Packets are sent in groups

! ! Group median / maximum Group median / maximum -

  • > (no) single outliers

> (no) single outliers

! ! Current configuration: Current configuration:

! ! One group every 30 s One group every 30 s ! ! 5 packets per group 5 packets per group ! ! Distance between packets: 20 ms Distance between packets: 20 ms

! ! Configurable: Configurable:

! ! ToS bits ToS bits ! ! Packet size Packet size ! ! Group size, interval Group size, interval ! ! Central configuration Central configuration

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IPPM IPPM-

  • DFN Measurement System

DFN Measurement System

! ! 1 sending and 1 receiving process for every measurement 1 sending and 1 receiving process for every measurement connection connection ! ! Time offset between processes at every measurement PC to Time offset between processes at every measurement PC to avoid collisions avoid collisions

A A B B C C D D

Sending offset: Sending offset: t1 t1 t2 t2 t3 t3 t4 t4

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IPPM IPPM-

  • DFN Measurement System

DFN Measurement System Link intrinsic Link intrinsic delay delay Routing Routing delay delay

One way delay plot One way delay plot

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G G-

  • WiN

WiN

! ! Current Current G G-

  • WiN

WiN -

  • Topology

Topology

GÉANT GÉANT 10 10 Gbps Gbps Global Global Upstream Upstream 2*2,5 2*2,5 Gbps Gbps

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G G-

  • WiN

WiN -

  • Measurement

Measurement

! ! G G-

  • WiN: National backbone of DFN

WiN: National backbone of DFN

! ! 10 level 1 sites, 17 level 2 sites 10 level 1 sites, 17 level 2 sites ! ! 7 x 10 7 x 10 Gbps Gbps, 31 x 2.4 , 31 x 2.4 Gbps Gbps, 1 x 622 Mbps , 1 x 622 Mbps

! ! Current measurements Current measurements

! ! 27 active Measurement Points 27 active Measurement Points ! ! > 1200 connections in total, running 24/7 “full meshed” > 1200 connections in total, running 24/7 “full meshed” ! ! Up to 100 connections per PC Up to 100 connections per PC

! ! Central data analysis station Central data analysis station

! ! Fetches raw data regularly ( Fetches raw data regularly (≈ ≈ 200 MB / d) 200 MB / d) ! ! Computes: Computes: ! ! Timestamps, delay, jitter, loss Timestamps, delay, jitter, loss ! ! Group minimum, median, maximum Group minimum, median, maximum ! ! Traceroutes Traceroutes ! ! Stores analyzed data ( Stores analyzed data (≈ ≈ 240 MB / d) 240 MB / d)

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G-WiN -

  • Measurement

Measurement

G-WiN current delay overview along SDH-paths:

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G G-

  • WiN

WiN -

  • Measurement

Measurement

Measurement Point Selection: Measurement Point Selection:

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G G-

  • WiN

WiN -

  • Measurement

Measurement

Path Selection: Path Selection:

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Measurement Examples G Measurement Examples G-

  • WiN

WiN

Route flapping Route flapping

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Measurement Examples G Measurement Examples G-

  • WiN

WiN

Delay and network utilization Delay and network utilization

Long Long-

  • time (15 min) average

time (15 min) average network load vs. delay shows at network load vs. delay shows at different customers either: different customers either: ! ! Correlation Correlation ! ! High delay without high load High delay without high load ! ! High load without increased High load without increased delay delay Higher time resolution of Higher time resolution of network load (< 1 s) necessary network load (< 1 s) necessary Lab tests! Lab tests!

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Measurement Examples G Measurement Examples G-

  • WiN

WiN

Increased delay due to network equipment failure Increased delay due to network equipment failure

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6WiN 6WiN

! ! Native IPv6 backbone Native IPv6 backbone

! ! Utilization of Utilization of network during ftp network during ftp download from download from Münster Münster to to Erlangen Erlangen

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Measurement Examples 6WiN Measurement Examples 6WiN

! !Measurements between Measurements between Erlangen Erlangen and and Münster Münster (Delay) (Delay)

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Measurement Examples 6WiN Measurement Examples 6WiN

! !Measurements between Measurements between Erlangen Erlangen and and Münster Münster (Delay Variation) (Delay Variation)

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GÉANT GÉANT

! ! Topology Topology

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GÉANT GÉANT

  • Currently, five Measurement Nodes installed and running

Currently, five Measurement Nodes installed and running

  • Paris, Frankfurt, Rome, Poznan, Tel Aviv

Paris, Frankfurt, Rome, Poznan, Tel Aviv

  • http://www.win

http://www.win-

  • labor.dfn.de/cgi

labor.dfn.de/cgi-

  • bin/geant/auswahl.pl

bin/geant/auswahl.pl

  • IPv4 measurements running

IPv4 measurements running

  • Currently: “part” of the G

Currently: “part” of the G-

  • WiN measurement system

WiN measurement system

  • Ongoing development

Ongoing development

  • IPv6

IPv6

  • Make IPPM conform to one way delay protocol (OWDP)

Make IPPM conform to one way delay protocol (OWDP)

  • Traceroute

Traceroute

  • Throughput / bandwidth

Throughput / bandwidth

  • Interface to raw / analyzed data

Interface to raw / analyzed data

  • More user interaction

More user interaction

  • ToS

ToS

  • Mobile boxes

Mobile boxes

Current Activities Current Activities

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GÉANT2 GÉANT2

  • Network Monitoring Activity JRA1

Network Monitoring Activity JRA1

  • In Geant2 (four years project, started sep. 2004) there is a

In Geant2 (four years project, started sep. 2004) there is a whole research activity (JRA1) on whole research activity (JRA1) on network monitoring; network monitoring;

  • JRA1 focuses not only on enhancing existing tools but

JRA1 focuses not only on enhancing existing tools but also on integrating them in a coherent architecture also on integrating them in a coherent architecture

  • This architecture should be multi

This architecture should be multi-

  • domain and allow users

domain and allow users to access measurement services and measurement to access measurement services and measurement results over well defined interfaces results over well defined interfaces

  • There is an ongoing coordination with Internet 2 to reach

There is an ongoing coordination with Internet 2 to reach an aligned design of this monitoring architecture an aligned design of this monitoring architecture

  • Future of IPPM

Future of IPPM-

  • DFN

DFN

  • IPPM as activity within GÉANT2

IPPM as activity within GÉANT2

  • Measurements in the European research networks

Measurements in the European research networks (approx. 20 nodes) (approx. 20 nodes)

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Contact Contact

! ! Internet: Internet: ! ! http://www.win http://www.win-

  • labor.dfn.de/

labor.dfn.de/ ! ! email email: : ! ! WiN WiN-

  • Labor@dfn.de

Labor@dfn.de ! ! G G-

  • Lab@rrze.uni

Lab@rrze.uni-

  • erlangen.de

erlangen.de ! ! phone phone: : ! ! 09131 85 09131 85-

  • 28800

28800