Network Connectivity Or Is there any hope

Network Connectivity Or …. Is there any hope my Performance will be seen over the network? Bob Riddle, Internet 2 28 March 2003

Network geeks & Performance Events What do network geeks know about dance, music, and good theater? • In my case, not much … • So why is a network geek involved? To answer the following questions: • Can I “stretch” the stage? • Do I live in the right “neighborhood” ? • Is there any hope this stuff will work when I need it to work?

Stretching the “Stage” Things to think about when “stretching” the stage • Speed: do you need a freeway, city street, or a dirt road? • Latency: is it a “telephone” call or a “movie”? • Packet Loss: is there any “junk mail” you can throw away?

Stretching the “Stage” -cont. Determine the quality of the Experience • Mpeg 1 • H. 323 • Mpeg 2 • DV ~= ~= 1. 5 mpbs 384 kbps 7 – 16 mbps 30 mbps Determine the type of Experience • One way? • Two way? • Many way? Do the math! (streaming, broadcast) (interactive voice, video) (more than 2 end points)

You have to live in the Right Neighborhood Take a look at your local neighborhood 1. Run internal tests across you LAN 2. Make sure you’re testing what you hope to use! 3. Find a friend “next door” to test with 4. Learn about ping, traceroute, Internet 2 Detective, VRVS & what they can tell you 5. Start thinking about what roads you’ll travel to the next neighborhood(s)

How do you get from here to there? Can I figure out if my stuff might work? 8 Wouldn’t it be nice if you could figure out if there was any hope your stuff would work without having to buy/borrow/steal another expensive device to ship to each end point? 8 Wouldn’t it be nice if you could use a cheap PC to determine if there was any hope? 8 Wouldn’t it be nice if you could use free (or almost free!) software to determine if there was any hope?

Say “hi” to the Cakebox! Criteria: • Small, inexpensive, easy to ship device • No operator, no monitor, keyboard, or mouse required • Just plug in a network cable & a power cable • Provide user interface for non-network geeks (this was result of Rialto event debriefing)

Cakebox - cont - 8 http: //envoy. internet 2. edu/pioneer/ 8 Will allow you to do: • Representative bandwidth testing • Show you what “road” you’ll travel • Allow you to exercise “broadcast” traffic • You can find out if there is any hope 8 You can do this on your own!

Cakebox - cont 8 This is all done using freely available tools: • http: //dast. nlanr. net/Projects/Iperf/ • http: //dast. nlanr. net/Projects/Beacon/ • http: //dast. nlanr. net/NPMT/ 8 Packaged on Linux Platform • “phone-home” to LDAP server • Secure access via SSL to web server • Secure access via SSH directly to cakebox

Other things you can use 8 http: //detective. internet 2. edu/ 8 http: //www. pingplotter. com/ 8 http: //www. insecure. org/nmap/ 8 http: //www. traceroute. org/ 8 E 2 EP (end-to-end performance group) 8 Questions?

www. internet 2. edu