1. A brief summary of DVTS application and a proposal for DVTS-specific measurement tools
Xing Li

2. Outline A brief summary of DVTS application
Applications
Routing
Measurement
A proposal for DVTS-specific measurement tools
Basic tool
Access interface
Find the server alone the path
Server registration

3. A brief summary of DVTS application

4. DVTS features Hardware is based on consumer products
Software is free and open source
Useful for serious applications
Special demand for network support
30Mbps, single video stream

5. Network challenges AS2 AS3 AS1 Bad cabling Wrong speed
access
Bad cabling
Wrong speed
Wrong duplex mode
firewall
Bandwidth bottle neck

6. The experience Rehearses are essential before the real event.
Can we use measure tools to make the life easier?

7. A proposal for DVTS-specific measurement tools

8. Design goals Test without the help of the counterpart
Simulate the real DVTS behavior without using the DVTS system
Built a common language between the application users and the network administrators
Find the bottleneck of the network

9. The architecture Basic tool Access interface
Dvmcast sender and reflector
Dvping sender/receiver
Access interface
web
Find the server alone the path
AS path and DNS server
Server registration
Manual or automatic

10. The operation modes of basic tools
dvmcast
DVTS system
DVTS file
Sending mode
Reflecting mode (1)
Reflecting mode (2)
dvping

11. The technical specification
dvmcast and dvmping：
-p snd_port (8000)
-rp rcv_port (8000)
-t period (sec)
-bw bandwidth (bps/kbps/Mbps)
host
-4|6

12. Web interface

13. Sending mode

14. Reflecting mode (2)

15. Find the server (1) Internet QS1 (DNS) BGP IP->ASN QS2 (DNS)
MS1
MS2
MS3
MS4
MS5
Internet
AS=Y
AS=U
AS=V
AS=Z
AS=X
User A
User B
QS1 (DNS)
BGP
IP->ASN
QS2 (DNS)
Data Base
ASN->IP

16. Find the server (2)

17. Server Registration (1)
Manual registration
Automatic registration (under development)

18. Server Registration (2)

19. Demo AS4538 AS24489 TEIN2-BJ-POP CERNET User A TUNET TEIN2-HK-POP MS
DVTS
MC2
TEIN2-SG-POP

20. Networks

21. We are looking for the international collaboration on DVTS measurement and application activities