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Connect. Communicate. Collaborate Using the perf. SONAR Click to edit Master title style Visualisation Connect. Communicate. Collaborate Using the perf. SONAR Click to edit Master title style Visualisation Tools

ITINERARY Wednesday 30 th May – Using the perf. SONAR Visualisation Tools. Thursday 31 ITINERARY Wednesday 30 th May – Using the perf. SONAR Visualisation Tools. Thursday 31 st May and Friday 1 st June – Installing and Configuring the perf. SONAR Services. 2

PERFSONAR PILOT OBJECTIVES This training is in support of the perf. SONAR pilot. The PERFSONAR PILOT OBJECTIVES This training is in support of the perf. SONAR pilot. The objectives of the pilot are to: • Provide proof of concept for the Multi Domain Monitoring service • Create a service desk, develop and test it • Allow the NOCs and PERT to use perf. SONAR and to provide feedback on it 3

OBJECTIVES OF THE TRAINING CURRICULUM The objectives of the three days of training are OBJECTIVES OF THE TRAINING CURRICULUM The objectives of the three days of training are to equip participants to: • Provide an overview of the perf. SONAR visualisation tools and services • Cascade training on the perf. SONAR Visualisation Tools to NREN users • Install and configure the perf. SONAR services 4

COURSE OBJECTIVES By the end of the day you will: • Be able to COURSE OBJECTIVES By the end of the day you will: • Be able to describe the range and purpose of the perf. SONAR visualisation tools. • Be able to use the perf. SONAR visualisation tools. • Be prepared to train users. 5

COURSE OUTLINE Module 1 – perf. SONAR Overview Module 2 – The perf. SONAR COURSE OUTLINE Module 1 – perf. SONAR Overview Module 2 – The perf. SONAR Visualisation User Interface (UI) Module 3 – Customer Network Management (CNM) Module 4 – The Looking Glass UI Module 5 – The Hades Visualisation Tool Module 6 – Case Studies Module 7 – Feedback on the Visualisation Tools Module 8 – Question and Answer Session for Trainers 6

Module 1: perf. SONAR Overview Module 1: perf. SONAR Overview

WHAT IS PERFSONAR? perf. SONAR is: • A project staffed by a variety of WHAT IS PERFSONAR? perf. SONAR is: • A project staffed by a variety of organisations and individuals • A set of protocols that: • Assume a set of web services based on defined roles. • Define their communication syntax and semantics. • Allow anyone to develop an implementation of a web service. • A set of code • Web service implementations and visualisation tools 8

WHAT ARE THE PERFSONAR WEB SERVICES? The perf. SONAR web services form a performance WHAT ARE THE PERFSONAR WEB SERVICES? The perf. SONAR web services form a performance measurement middleware framework that is: • Interoperable. • Distributed. 9

WHY PERFSONAR? (1) Problem: performance data is fragmented and hard to access Effect: it WHY PERFSONAR? (1) Problem: performance data is fragmented and hard to access Effect: it is difficult and time consuming to diagnose potential multi-domain networking problems 10

WHY PERFSONAR? (2) The situation today: • Access to a network’s data is often WHY PERFSONAR? (2) The situation today: • Access to a network’s data is often restricted to itself • Numerous different monitoring tools in different networks • Difficult to identify where the available tools are and where performance information is located • In order to run a test, often need first to configure machine-access • Different information collected analysed in different ways • Diagnosing multi-domain performance issues is difficult and time-consuming • Results in user-frustration and unwillingness to use the network 11

THE PERFSONAR VISION (1) A network administrator should be able to identify obvious performance THE PERFSONAR VISION (1) A network administrator should be able to identify obvious performance problems along the path, thus improving user support. 12

THE PERFSONAR VISION (2) The goal is to facilitate the resolution of multi-domain network THE PERFSONAR VISION (2) The goal is to facilitate the resolution of multi-domain network performance problems by: • Revealing available tools. • Making information from one network available to others. • Maximising accessibility of standard network performance and management information. • Broadening the set of management and performance information. • Automating the extraction of key data. • Pre-authorising machine-access and testing. • Separate measurement, analysis and visualisation. 13

THE ‘AS IS’ SITUATION (1) Many different measurement tools and measurement stores exist. For THE ‘AS IS’ SITUATION (1) Many different measurement tools and measurement stores exist. For example: • Ping • Traceroute • BWCTL • Cricket • MRTG • Round Robin Databases (RRD) • Relational Databases 14

THE ‘AS IS’ SITUATION (2) There is a great deal of performance data available, THE ‘AS IS’ SITUATION (2) There is a great deal of performance data available, but it is: • Held in different formats. • Produced by tools that are not interoperable. • Fragmented in different domains. 15

PERFSONAR: INTEROPERABILITY AND DATA-SHARING Given the large number of measurement tools and archives in PERFSONAR: INTEROPERABILITY AND DATA-SHARING Given the large number of measurement tools and archives in existence, the perf. SONAR project aims to: • Provide a framework to collect, normalise and share the data already in existence. • Build the framework ‘on top of’ the existing measurement tools and archives. 16

THREE-TIER ARCHITECTURE (1) The perf. SONAR framework: • Is middleware. • Is distributed between THREE-TIER ARCHITECTURE (1) The perf. SONAR framework: • Is middleware. • Is distributed between domains. • Facilitates inter-domain performance information sharing. perf. SONAR services ‘wrap’ existing measurement tools. 17

THREE TIER ARCHITECTURE (2) Highest layer: User Interfaces (UIs) • Purpose: allow users to THREE TIER ARCHITECTURE (2) Highest layer: User Interfaces (UIs) • Purpose: allow users to view and query performance data Middle layer: Services (the perf. SONAR framework) • Purpose: • Expose measurement tools and data within domain-defined security restrictions • Provide standard protocol for intra-domain and inter-domain performance data exchange (discovery, authentication, authorisation) Lowest layer: Measurement Tools • Purpose: measure network performance 18

PERFSONAR USE CASES (1) • Investigate a path, based on a traceroute • View PERFSONAR USE CASES (1) • Investigate a path, based on a traceroute • View access link capacity and utilisation • Identify bottlenecks • Investigate output drops and the input errors (not available yet). • Troubleshoot a routing or multicast problem • Use the looking glass to run commands • Identify problems caused by selective firewalls or loss of connectivity • Run ping through multiple domains via the looking glass 19

PERFSONAR USE CASES (2) • Test delay and throughput to determine users’ perception of PERFSONAR USE CASES (2) • Test delay and throughput to determine users’ perception of performance • Investigate routing change: delay changes and traceroute variation (alarm triggered) • Provide dedicated information to projects • On-demand testing to identify whether the path will adequately handle large transfers 20

FRAMEWORK FACILITATES NORMALISED END-TO-END PERFORMANCE DATA (SIMPLIFIED DEPICTION) 21 FRAMEWORK FACILITATES NORMALISED END-TO-END PERFORMANCE DATA (SIMPLIFIED DEPICTION) 21

Module 2: The perf. SONAR Visualisation User Interface Module 2: The perf. SONAR Visualisation User Interface

THE PERFSONAR VISUALISATION UI Purpose: • To make network management and performance information from THE PERFSONAR VISUALISATION UI Purpose: • To make network management and performance information from a range of perf. SONAR services easily available Users: • NOC staff, PERT staff and projects with demanding network performance requirements • End-users with basic technical background Mode: • Visualisation – graphs, charts and diagrams as well as figures 23

FEATURES OF THE PERFSONAR VISUALISATION UI (1) The perf. SONAR Visualisation User Interface is: FEATURES OF THE PERFSONAR VISUALISATION UI (1) The perf. SONAR Visualisation User Interface is: • Open Source • Implemented in Java • Able to retrieve of data from: • RRD MA services • SQL MA services • Hades MA services 24

FEATURES OF THE PERFSONAR VISUALISATION UI (2) The perf. SONAR Visualisation User Interface provides: FEATURES OF THE PERFSONAR VISUALISATION UI (2) The perf. SONAR Visualisation User Interface provides: • A utilisation summary for all selected interfaces in tabular and graphical form • Visualisation of utilisation details for a chosen interface and a selected time period • Visualisation of: • One way delay between measurement points • IP Delay Variation between measurement points • Packet loss between measurement points 25

PERFSONAR VISUALISATION UI: USE CASES (1) Path Load Visualisation: • You can view interface PERFSONAR VISUALISATION UI: USE CASES (1) Path Load Visualisation: • You can view interface utilisation data for successive traceroute hops in a multi-domain environment • You specify the traceroute and set the time-interval for display • The total load on each interface in the path over the time period is displayed in a bar-chart and radar • You can view a detailed ingress / egress utilisation line graph for a selected interface over the time period 26

USING THE PERFSONAR VISUALISATION UI (1) Input traceroute information Select measurement archives Interface utilisation USING THE PERFSONAR VISUALISATION UI (1) Input traceroute information Select measurement archives Interface utilisation summary Interface information Line graph for selected interface Timescale selection 27

PERFSONAR VISUALISATION UI: USE CASES (2) Circuit Investigation: • Select a circuit (possibly between PERFSONAR VISUALISATION UI: USE CASES (2) Circuit Investigation: • Select a circuit (possibly between different domains) • Visualises One Way Delay, IP Delay Variation and Packet Loss • You can zoom in and out of graphs 28

USING THE PERFSONAR VISUALISATION UI (2) Endpoint selection Measurement details Available source / destination USING THE PERFSONAR VISUALISATION UI (2) Endpoint selection Measurement details Available source / destination pairs One way delay IP delay variation Query parameters Packet loss 29

BWCTL VISUALISATION THROUGH THE PERFSONAR VISUALISATION UI – USE CASES Controlling network options for BWCTL VISUALISATION THROUGH THE PERFSONAR VISUALISATION UI – USE CASES Controlling network options for a given path: • Correct windowsizes etc. • Find bottlenecks on the route Investigate network problems on a given path: • Check UDP / TCP performance • Throughput over a given time span • Note: can cause high network load Combine results with other measurements such as: • traceroute • One Way Delay (OWD) • Etc. 30

USING THE BWCTL VISUALISATION PLUG-IN Endpoint selection Measurement parameters source / destination addresses Measurement USING THE BWCTL VISUALISATION PLUG-IN Endpoint selection Measurement parameters source / destination addresses Measurement results 31

PERFSONAR VISUALISATION UI – SYSTEM REQUIREMENTS The perf. SONAR Visualisation UI is a Java PERFSONAR VISUALISATION UI – SYSTEM REQUIREMENTS The perf. SONAR Visualisation UI is a Java application, so: • It requires Java 2 Runtime Environment, Standard Edition 1. 5 or later. • Will run on any operating system, provided that the correct Java Virtual Machine is installed. 32

INSTALLING THE PERFSONAR VISUALISATION UI You can find the latest releases at http: //wiki. INSTALLING THE PERFSONAR VISUALISATION UI You can find the latest releases at http: //wiki. perfsonar. net/jra 1 -wiki/index. php/Perfsonar. UI. The latest beta version is available through Java Web Start. For older (stable) releases you can choose between: • Automated installer for Microsoft Windows family of operating systems (NT, 2000, XP, 2003) • Best option for Windows installations • Simple ZIP archive containing all the required files • For installation on non-windows operating systems 33

THE PERFSONAR VISUALISATION UI ROADMAP (1) Planned next steps: • Integrate core support for THE PERFSONAR VISUALISATION UI ROADMAP (1) Planned next steps: • Integrate core support for Lookup Service • Integrate core support for Authentication and Authorisation Service – Continued on next slide… 34

THE PERFSONAR VISUALISATION UI ROADMAP (2) Planned next steps (continued): • Plug-in API (for THE PERFSONAR VISUALISATION UI ROADMAP (2) Planned next steps (continued): • Plug-in API (for service developers) • Enhance the BWCTL visualisation plug-in – Integration of BWCTL MP – Graphical presentation of test data – Comparison between measurements • Implement plug-ins for different metrics visualisation (e. g. interface errors / drops, CPU / memory usage, etc. ) The ultimate goal of the perf. SONAR UI is to support all existing and future perf. SONAR services through its powerful plug-in API. 35

ACTIVITIES perf. SONAR Visualisation UI: • Demonstration • Exercise • Feedback about the UI ACTIVITIES perf. SONAR Visualisation UI: • Demonstration • Exercise • Feedback about the UI • Provide three positive points and three things to enhance – No inter-personal issues – No generalities. Be specific. – Make suggestions about how to improve 36

Module 3: Customer Network Management (CNM) Module 3: Customer Network Management (CNM)

CUSTOMER NETWORK MANAGEMENT (CNM) Purpose: • To display network topologies with performance metrics, including CUSTOMER NETWORK MANAGEMENT (CNM) Purpose: • To display network topologies with performance metrics, including current and historic link utilisation and capacity for network maps and single interfaces Users: • NOC / PERT staff (for easy overview), end-users, projectteam members (project specific maps), non-technical NREN staff Mode: • Graphical, map-based, topological 38

FEATURES OF CNM: • Displays hierarchical maps of network topology • Displays statistics for FEATURES OF CNM: • Displays hierarchical maps of network topology • Displays statistics for current time and past time intervals • Set time • Choose betwenn capacity, utilisation, and active measurement metrics • Implemented using Java so is platform independent • Java Swing client interacts with CNM server • Java Web. Start used for easy deployment • Is able to Retrieve data from: • The RRD Measurement Archive service • The Hades Measurement Archive service 39

CNM USE CASES (1) You would use CNM to: • Gain a current or CNM USE CASES (1) You would use CNM to: • Gain a current or historic overview of a network • Can specifically display the network of a participating NREN • Easily spot: – High Utilisation – Network problems (up / down router and link status) • Study a statistical graph of a particular link or router over a specific time period 40

CNM USE CASES (2) You cannot currently view up / down information • perf. CNM USE CASES (2) You cannot currently view up / down information • perf. SONAR services cannot yet supply this You can view active measurement results: • Delay • Jitter • Loss 41

THE CNM INTERFACE (1) Selection tree Time stamp Hierarchical maps Selection options Link Metrics THE CNM INTERFACE (1) Selection tree Time stamp Hierarchical maps Selection options Link Metrics Visual key Zoom options 42

THE CNM INTERFACE (2) The PSNC network seen through CNM 43 THE CNM INTERFACE (2) The PSNC network seen through CNM 43

THE CNM INTERFACE (3) The SWITCH network seen through CNM 44 THE CNM INTERFACE (3) The SWITCH network seen through CNM 44

THE SWITCH TRAFFIC WEATHER MAP Network data seen through the SWITCH web site. 45 THE SWITCH TRAFFIC WEATHER MAP Network data seen through the SWITCH web site. 45

THE CNM INTERFACE (4) A node in the SWITCH network, showing utilisation over 5 THE CNM INTERFACE (4) A node in the SWITCH network, showing utilisation over 5 minutes in Mbit/s 46

CNM SYSTEM REQUIREMENTS CNM is a Java application, so: • It requires Java 2 CNM SYSTEM REQUIREMENTS CNM is a Java application, so: • It requires Java 2 Runtime Environment, Standard Edition 1. 5 or later. • Will run on any operating system, provided that the correct Java Virtual Machine is installed. 47

INSTALLING CNM You can find the latest releases at http: //sonar 1. munich. cnm. INSTALLING CNM You can find the latest releases at http: //sonar 1. munich. cnm. dfn. de/cnmapp/def/jnlp/topoapplet. jnlp. The latest version will ‘self-install’ through Java Web Start. 48

THE CNM ROADMAP Future Developments: • Integration of more networks (topology and utilisation data) THE CNM ROADMAP Future Developments: • Integration of more networks (topology and utilisation data) • Retrieval of data from Topology service (Common Network Information Service or CNIS) • Dashboard showing: • Key performance indicators • Top ranking links – E. g. links with highest jitter or sharpest utilisation increase over last 15 minutes. • Can show link / node status (up or down) • Will do so when Measurement Archives can hold this data 49

ACTIVITIES Customer Network Management: • Demonstration • Exercise • Feedback about the UI • ACTIVITIES Customer Network Management: • Demonstration • Exercise • Feedback about the UI • Provide three positive points and three things to enhance – No inter-personal issues – No generalities. Be specific. – Make suggestions about how to improve 50

Module 4: The Looking Glass User Interface Module 4: The Looking Glass User Interface

THE LOOKING GLASS USER INTERFACE Purpose: • Front-end for the SSH / Telnet Measurement THE LOOKING GLASS USER INTERFACE Purpose: • Front-end for the SSH / Telnet Measurement Point; used to retrieve configuration information from network devices in real -time • E. g. traceroute, BGP table Users: • NOC and PERT staff Mode: • Text-based UI 52

FEATURES OF LOOKING GLASS The Looking Glass Interface: • Is able to retrieve of FEATURES OF LOOKING GLASS The Looking Glass Interface: • Is able to retrieve of data from the SSH / Telnet Measurement Point • Can only issue commands and parameters that are configured for the relevant instance of the SSH / Telnet MP. – This is for security reasons. • Can be used to issue multiple parameters with the same command. • Allows multiple devices to be included in one request. • Is implemented in Java. 53

LOOKING GLASS USE CASES Retrieval of configuration information from network devices: • Retrieval of LOOKING GLASS USE CASES Retrieval of configuration information from network devices: • Retrieval of information is via an SSH / Telnet MP • Therefore an instance of the SSH / Telnet MP must be ‘pointing at’ the router or other network device that you want to retrieve information from. • Looking Glass retrieves router configuration information. For example: • traceroute • BGP table • History • Information about the router’s interfaces 54

USING LOOKING GLASS Select MP Select device Select command parameters Results 55 USING LOOKING GLASS Select MP Select device Select command parameters Results 55

LOOKING GLASS SYSTEM REQUIREMENTS Looking Glass is a Java application, so: • It requires LOOKING GLASS SYSTEM REQUIREMENTS Looking Glass is a Java application, so: • It requires Java 2 Runtime Environment, Standard Edition 1. 5 or later. • Will run on any operating system, provided that the correct Java Virtual Machine is installed. • There is a Java Web Start Looking Glass available, which you can use (you can specify your MP in the menu) • http: //chaos 169. test. atlantis. ugent. be/apache 2 -default/ 56

INSTALLING THE LOOKING GLASS UI You can find the latest release at http: //wiki. INSTALLING THE LOOKING GLASS UI You can find the latest release at http: //wiki. perfsonar. net/jra 1 wiki/index. php/Looking_Glass. You can download the application or deploy it using Java Web Start. 57

THE LOOKING GLASS ROADMAP Future enhancements / developments: • Lookup Service integration • The THE LOOKING GLASS ROADMAP Future enhancements / developments: • Lookup Service integration • The Looking Glass client will be integrated into the perf. SONAR Visualisation UI via the plug-in mechanism. • Requests For Enhancements • Communicate requests for enhancements through the Service Desk 58

ACTIVITIES The Looking Glass UI: • Demonstration • Exercise • Feedback about the UI ACTIVITIES The Looking Glass UI: • Demonstration • Exercise • Feedback about the UI • Provide three positive points and three things to enhance – No inter-personal issues – No generalities. Be specific. – Make suggestions about how to improve 59

Module 5: The Hades Visualisation Tool Module 5: The Hades Visualisation Tool

THE HADES VISUALISATION TOOL Purpose: • Visualisation of IP performance metrics data • One THE HADES VISUALISATION TOOL Purpose: • Visualisation of IP performance metrics data • One Way Delay (OWD) • One Way Delay Variation (OWDV) • Packet Loss (PL) • Traceroute Information Users: • PERT, NOC, End Users, All Mode: • Web / Host based Graphical visualisation of data 61

FEATURES OF THE HADES VISUALISATION TOOL The Hades Visualisation Tool provides: • Measurement Maps FEATURES OF THE HADES VISUALISATION TOOL The Hades Visualisation Tool provides: • Measurement Maps (Domain based) • “Weather Map” of Measurement Network • GÉANT 2 Measurement Circle • JRA 1 Measurement Circle • Measurement Host Selection • Day based grid of available measurement data • Selection of measurements per host • Visualisation of single measurements per host • Selection of available measurement types (OWD, OWDV, PL, traceroute, IPv 4, IPv 6) • Visualisation of data with zoomable graphs, variable timescale 62

HADES VISUALISATION TOOL USE CASES (1) Retrieval of network irregularities • Measurement maps show HADES VISUALISATION TOOL USE CASES (1) Retrieval of network irregularities • Measurement maps show information about delay status • If Maps show irregularities, measurement path can be examined using the clickable map or the measurement point selection • Measurements can exhibit reasons for network problems 63

HADES VISUALISATION TOOL USE CASES (2) Long-Term path stability visualisation • Analysis of data HADES VISUALISATION TOOL USE CASES (2) Long-Term path stability visualisation • Analysis of data over long periods shows information about path stability • Quality control of path stability Base for Alert System • Automatic determination of result changes triggers alerts 64

USING THE HADES VISUALISATION TOOL (1) Entry point: http: //www. win-labor. dfn. de/ippm/ Domain USING THE HADES VISUALISATION TOOL (1) Entry point: http: //www. win-labor. dfn. de/ippm/ Domain Type Selection Visualisation Type Selection 65

USING THE HADES VISUALISATION TOOL (2) “Weather Map”: http: //www. win-labor. dfn. de/cgi-bin/ipqos/map. pl? USING THE HADES VISUALISATION TOOL (2) “Weather Map”: http: //www. win-labor. dfn. de/cgi-bin/ipqos/map. pl? config=geant Current OWD Active Node 66

USING THE HADES VISUALISATION TOOL (3) “GÉANT 2 Map”: http: //www. win-labor. dfn. de/cgi-bin/ipqos/map. USING THE HADES VISUALISATION TOOL (3) “GÉANT 2 Map”: http: //www. win-labor. dfn. de/cgi-bin/ipqos/map. pl? config=geant; map=geant Current OWD on „mouseover“ 67

USING THE HADES VISUALISATION TOOL (4) “NREN Map”: http: //www. win-labor. dfn. de/cgi-bin/ipqos/map. pl? USING THE HADES VISUALISATION TOOL (4) “NREN Map”: http: //www. win-labor. dfn. de/cgi-bin/ipqos/map. pl? config=geant; map=nrens Click for data 68

USING THE HADES VISUALISATION TOOL (5) Measurement selection: http: //www. winlabor. dfn. de/cgibin/ipqos/selectnew. pl? USING THE HADES VISUALISATION TOOL (5) Measurement selection: http: //www. winlabor. dfn. de/cgibin/ipqos/selectnew. pl? config=geant Click to select Red: no data available 69

USING THE HADES VISUALISATION TOOL (6) Measurement selection: http: //www. winlabor. dfn. de/cgibin/ipqos/selectnew. pl? USING THE HADES VISUALISATION TOOL (6) Measurement selection: http: //www. winlabor. dfn. de/cgibin/ipqos/selectnew. pl? config=geant&mode =selectpaths&station=Amste rdam_SURFnet&date=2007/ 05/20 Path selection, mark to show available measurements 70

USING THE HADES VISUALISATION TOOL (7) Measurement type selection: http: //www. winlabor. dfn. de/cgibin/ipqos/selectnew. USING THE HADES VISUALISATION TOOL (7) Measurement type selection: http: //www. winlabor. dfn. de/cgibin/ipqos/selectnew. pl? date=21. 05. 2007&co nfig=geant&mode=selectpat hs&station=Amsterdam_GE ANT&SUBMIT=Submit&vie wroutes=Budapest_GEANT. Amsterdam_GEANT Measurement type selection 71

USING THE HADES VISUALISATION TOOL (8) Example for data visualisation OWDV PL Format panel USING THE HADES VISUALISATION TOOL (8) Example for data visualisation OWDV PL Format panel 72

HADES VISUALISATION TOOL SYSTEM REQUIREMENTS Hades visualisation is web-based. No additional software is required. HADES VISUALISATION TOOL SYSTEM REQUIREMENTS Hades visualisation is web-based. No additional software is required. 73

INSTALLING THE HADES VISUALISATION TOOL Hades visualisation is not part of perf. SONAR! • INSTALLING THE HADES VISUALISATION TOOL Hades visualisation is not part of perf. SONAR! • All Hades Visualisation Tools are cgi-scripts. • Scripts are embedded int the Hades framework • No separate release is planned for the Hades visualisation • All features will be included into perf. SONAR UI in future 74

THE HADES VISUALISATION TOOL ROADMAP No further feature enhancements are planned. Functionality from the THE HADES VISUALISATION TOOL ROADMAP No further feature enhancements are planned. Functionality from the HADES visualisation tool will be built into the perf. SONAR Visualisation UI. Only layout enhancement are planned. 75

ACTIVITIES The Hades Visualisation Tool: • Demonstration • Feedback about the UI • Provide ACTIVITIES The Hades Visualisation Tool: • Demonstration • Feedback about the UI • Provide three positive points and three things to enhance – No inter-personal issues – No generalities. Be specific. – Make suggestions about how to improve 76

Module 6: Case Studies Module 6: Case Studies

ACTIVITIES Case Study 1 – Network Reachability Problem Case Study 2 – Network Performance ACTIVITIES Case Study 1 – Network Reachability Problem Case Study 2 – Network Performance Problem 78

Module 7: Feedback on the Visualisation Tools Module 7: Feedback on the Visualisation Tools

ACTIVITIES Please use the forms provided to give us feedback about the perf. SONAR ACTIVITIES Please use the forms provided to give us feedback about the perf. SONAR visualisation tools. 80

Module 8: Question and Answer Session for Trainers Module 8: Question and Answer Session for Trainers

FOR MORE INFORMATION • www. geant 2. net • www. dante. net • For FOR MORE INFORMATION • www. geant 2. net • www. dante. net • For latest news and factsheets http: //www. geant 2. net/media • For research activities http: //www. geant 2. net/research • The perf. SONAR FAQ and mailing list can be found at www. perfsonar. net. • The WIKI at wiki. perfsonar. net is also a valuable source of information. 82

RECAP OF COURSE OBJECTIVES By the end of the day you will: • Be RECAP OF COURSE OBJECTIVES By the end of the day you will: • Be able to describe the range and purpose of the perf. SONAR visualisation tools. • Be able to use the perf. SONAR visualisation tools. • Be prepared to train users. 83