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Network Performance Toolkit (NPToolkit) A Knoppix Live-CD

Network Performance Toolkit (NPToolkit) A Knoppix Live-CD. Rich Carlson Tools Tutorial 12/4/06. Internet2 E2E Tools. Multiple tools currently being deployed BWCTL – active throughput tests via NLANR’s Iperf NDT – End host diagnostic and analysis OWAMP – One way delay measurement

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Network Performance Toolkit (NPToolkit) A Knoppix Live-CD

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  1. Network Performance Toolkit(NPToolkit)A Knoppix Live-CD Rich Carlson Tools Tutorial 12/4/06

  2. Internet2 E2E Tools • Multiple tools currently being deployed • BWCTL – active throughput tests via NLANR’s Iperf • NDT – End host diagnostic and analysis • OWAMP – One way delay measurement • Thrulay – active throughput tests

  3. Network Performance Workshops • Hands-on workshop to deploy E2E tools in campus and GigaPoP networks • Currently focused on building and deploying tools • Major difficulty is getting prerequisite Web100 enhanced kernel built and deployed

  4. Knoppix Live-CD • A bootable Debian Linux OS • Uses RAM disk to hold working image • Can access system HW including network, disk drives, and other peripherals • Configuration management to save/restore customization information • Allows simple start-up for novice user

  5. NPToolkit • A specialized Knoppix Live-CD to support the Internet2 E2e Tools • Web100 enhanced Linux 2.6.17.7 kernel • Includes all Internet2 E2E tools • Includes PSC’s NPAD tool • All server processes start automatically at boot time, using generic configuration files

  6. NPToolkit Knoppix Disk

  7. Obtaining the CD • Download it from the Internet2 E2E web page • Ask us for a pre-burned CD

  8. The Download Process • Start at the main E2E toolkit web page • http://e2epi.internet2.edu/network-performance-toolkit.html • Download the NPToolkit ISO image from the Internet2 web site • http://e2epi.internet2.edu/network-performance-toolkit/network-performance-toolkit.iso • Optionally download the CD Label • http://e2epi.internet2.edu/network-performance-toolkit/network-performance-toolkit-cd-label.bmp

  9. The ISO Burn Process • Insert a blank CD into a drive and burn the ISO using your favorite program • Identify a drive to hold customization files • USB Thumb Drive • Internal harddrive

  10. System Startup • Insert the CD into the system tray • Insert the USB thumb drive into an open port • Power on the system

  11. First time steps • The system will boot and start all 4 tools using generic, but usable, configuration files • The last step in the boot process is to prompt the user for customization information • Follow the on-screen prompts to create customized configs

  12. Customization Options • Obtain IP address via DHCP or manually configuration • Customize NDT and NPAD web pages • Set BWCTL and OWAMP limits • Setup USB thumb drive

  13. Setup USB Drive • Searches for any USB drives connected to the system • Copies/usr/local/etc/knoppix.sh file to USB drive • Knoppix searches for and executes this file at boot time • File contains instructions to copy files from USB drive to system space before daemons star

  14. Static or DHCP addressing • Controls how IP address is configured • Prompts for • IP address • Netmask • Interface ID • Gateway • Automatically saves/restores information during reboots

  15. BWCTL Customization • Default config • Allows 30 sec TCP tests from anyone • Denies UDP tests from everyone • Customization can • Enable access via AES authentication • Enable different limits for ‘trusted’ and ‘untrusted’ users

  16. NDT Customization • Allows setting of admin email address • Specifies NDT server location • Specifies NDT network connection

  17. NPAD Customization • Allows admin to set email address • Specifies server location

  18. OWAMP Customization • Default config • Allows up to 1 Mbps of traffic • Allows up to 100 MB of disk space • Customization can • Enable access via AES authentication • Enable different limits for ‘trusted’ and ‘untrusted’ users

  19. NPToolkit Operation • After system customization is completed, login prompt appears • Login with userid knoppix • No password

  20. Remote Administration • Admin should set password for knoppix and root accounts • Start ssh daemon /sbin/service ssh • Startup process automatically generates new keys • Manually save/restore /etc/passwd, /etc/group and /etc/shadow files on thumb drive May automate this process in future customization scripts

  21. Future Directions • Continue to update Customization scripts • Upgrade tools • Upgrade Linux Kernel • Develop new class, focusing on how to understand the tool results

  22. Questions???

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