1. Ka-Ping Yee Danyel Fisher Rachna Dhamija InfoVis Fall 2000
gnuTellaVision
Ka-Ping Yee Danyel Fisher Rachna Dhamija
InfoVis Fall 2000

2. Gnutella: how it works Current interfaces & viz Problems & Solutions Demo Conclusions

3. Gnutella
brief overview and animation of message sequence

4. Gnutella
brief overview and animation of message sequence

5. Gnutella
find hosts
brief overview and animation of message sequence

6. Gnutella
find hosts
brief overview and animation of message sequence

7. Gnutella
ping
brief overview and animation of message sequence

8. Gnutella
pong
brief overview and animation of message sequence

9. Gnutella
pong
brief overview and animation of message sequence

10. Gnutella
pong
brief overview and animation of message sequence

11. Gnutella
query
brief overview and animation of message sequence

12. Gnutella
query TTL=2
brief overview and animation of message sequence

13. Gnutella query TTL=3 query
brief overview and animation of message sequence

14. Gnutella
query hit
brief overview and animation of message sequence

15. Gnutella download file
brief overview and animation of message sequence

16. Gnutella interfaces

17. Problem what does the network look like? how am I connected?
find "good" hosts (lots of files, reliable, etc.)
where do my search messages go?
where do results come from?
network/node diagnostics
what are people offering/searching for?
where do I find X?
who else is searching for X?
[present questions our viz answers]

18. Previous work
- gnutella vizzes (clip2dss, graphviz diagram) problems: these are overcrowded and not dynamic - other dynamic network vizzes?

19. Previous work
Graphing the structure of the Gnutella network by Steve G. Steinberg. Data on the structure of the network was gathered using a modified Gnutella client to
perform the equivalent of traceroute and then the maps were created using Graphviz.

20. What we did Collect data Viz in realtime! Gnutella python module
Python and TKinter
viz issues: the info we are trying to convey and how we did it

21. A preview Network graph = Ping's layout algorithm
Node size = number of files
Node color and border = connection state
Line color = direct/indirect connections between nodes
Text = node info and search queries
Interactivity = drop searches, click on nodes

22. Demo
(have backup screen shots)

23. Observations Connectivity Small number of “big nodes”
Searches take a long time
Future possibilities….
line width = reliability
animation
node selection = investigate node properties
Interface widgets to support interactivity

24. Conclusions Future Work Python/TK is a great prototyping tool!
Improve layout
Viz (line width, saturation)
Node information (Profile of behavior and content)
Interactivity
Your ideas?
Python/TK is a great prototyping tool!
Future possibilities….
line width = reliability
animation
node selection = investigate node properties
Interface widgets to support interactivity

25. Rejects

26. Rejects

27. Questions?

29. gnutella
Ping
brief overview and animation of message sequence

30. gnutella
query
brief overview and animation of message sequence

31. gnutella
Ping
brief overview and animation of message sequence

32. gnutella
Ping
brief overview and animation of message sequence

33. gnutella
Ping
brief overview and animation of message sequence

34. gnutella
Ping
brief overview and animation of message sequence

35. gnutella
ping TTL=2
brief overview and animation of message sequence