Or …. Is there any hope my Performance will be seen over the network?

Bob Riddle, Internet2

28 March 2003

Network Connectivity

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”

•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?

Things to think about when

“stretching” the stage

Stretching the “Stage” -cont-

Determine the quality of the Experience• Mpeg1 ~= 1.5 mpbs• H.323 ~= 384 kbps• Mpeg2 ~= 7 – 16 mbps• DV ~= 30 mbps

Determine the type of Experience• One way? (streaming, broadcast)• Two way? (interactive voice, video)• Many way? (more than 2 end points)

Do the math!

You have to live in the Right Neighborhood

Take a look at your local neighborhood1. 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, Internet2 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? 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?

Wouldn’t it be nice if you could use a cheap PC to determine if there was any hope?

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 -

http://envoy.internet2.edu/pioneer/

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

You can do this on your own!

Cakebox - cont -

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/

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

http://detective.internet2.edu/

http://www.pingplotter.com/

http://www.insecure.org/nmap/

http://www.traceroute.org/

E2EP (end-to-end performance group)

Questions?

www.internet2.edu