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S kills : use ping

Ping demonstration. S kills : use ping Concepts : network transit time, command-line user interface vs. graphical user interface, prefixes for small quantities. This work is licensed under a Creative Commons Attribution-Noncommercial-Share Alike 3.0 License. . Where does this topic fit?.

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S kills : use ping

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  1. Ping demonstration Skills: use ping Concepts: network transit time, command-line user interface vs. graphical user interface, prefixes for small quantities This work is licensed under a Creative Commons Attribution-Noncommercial-Share Alike 3.0 License.

  2. Where does this topic fit? • Internet concepts • Applications • Technology (communication) • Implications • Internet skills • Application development • Content creation • User skills

  3. Ping 1101101 Acknowledge Client Server

  4. Ping Google C:\Users\Larry>ping www.google.com Pinging www.l.google.com [74.125.224.84] with 32 data bytes: Reply from 74.125.224.84: bytes=32 time=18ms TTL=53 Reply from 74.125.224.84: bytes=32 time=17ms TTL=53 Reply from 74.125.224.84: bytes=32 time=19ms TTL=53 Reply from 74.125.224.84: bytes=32 time=17ms TTL=53 Ping statistics for 74.125.224.84: Packets: Sent = 4, Received = 4, Lost = 0 (0% loss), Approximate round trip times in milli-seconds: Minimum = 17ms, Maximum = 19ms, Average = 17ms C:\Users\Larry>

  5. Ping Catholic University, Santiago Chile C:\Users\Larry>ping www.puc.cl Pinging www.puc.cl [146.155.99.60] with 32 bytes of data: Reply from 146.155.99.60: bytes=32 time=182ms TTL=110 Reply from 146.155.99.60: bytes=32 time=180ms TTL=110 Reply from 146.155.99.60: bytes=32 time=177ms TTL=110 Reply from 146.155.99.60: bytes=32 time=185ms TTL=110 Ping statistics for 146.155.99.60: Packets: Sent = 4, Received = 4, Lost = 0 (0% loss), Approximate round trip times in milli-seconds: Minimum = 180ms, Maximum = 185ms, Average = 181ms C:\Users\Larry>

  6. Mind blowing speed RT to Chile at around 62,000 miles per second – about 1/3 the speed of light.

  7. Try ping yourself Start > Run

  8. A command-line window

  9. The result

  10. Request timed out

  11. Blip – better than Ping or Speedtest.net https://github.com/apenwarr/blip#readme http://apenwarr.ca/log/?m=201304#26

  12. A windows Ping client

  13. Prefixes for small quantities

  14. Summary 1101101 Acknowledge Client Server

  15. Self-study questions Which organization owns the host with the IP address 74.125.0.0 ? Ping www.microsoft.comfrom two places, perhaps school and your home. Are the ping times the same? Explain the differences? If you measure ping time between two hosts at different times, will it always be the same? Explain your answer. Data travels very fast across the Internet, but the rate is less than the speed of light. What things slow it down? I pinged Google.com from my home and from my office. The results showed two different destination IP addresses. Can you explain that? Which do you like better, the command-line ping program that comes with Windows or the window-based program that I wrote? Why? Give at least one advantage for each.

  16. Resources To run ping from remote locations around the world, go to: http://www.traceroute.org/ For more on command line versus graphical user interfaces see: http://som.csudh.edu/fac/lpress//471/hout/misc/guivcli.htm To test ping times and data transfer rates (upload and download): http://www.speedtest.net/

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