1. APAN-KR Measurement Activity Jaehoon Jeong paul@mmlab.snu.ac.kr paul@mmlab.snu.ac.kr Seoul National University

2. Contents Measurement Activity in APAN-KR Active Measurement Tool(AMT) Deployment of AMT in APAN-KR

3. Measurement Activity in APAN-KR Passive Measurement  Tools  MRTG  OC3MON  CINERA: Netflow (if possible) Active Measurement  Tools  Surveyor  Netperf  Smartbit (but expensive)  AMT (will be deployed soon)

4. Active Measurement Tool(AMT) What is AMT?  Active measurement infrastructure  Metric  One-way delay  Packet loss  Time synchronization  GPS  Time stamping  Data link layer

5. Active Measurement Tool(AMT) Development Environment  PC: Pentium III  Data link layer: Ethernet  GPS Receiver: Motorola Oncore GPS Receiver(UT)  Antenna: Oncore Remote  OS: FreeBSD 3.3-Release  Time sync: ntp-4.0-97  Database: MySQL

6. AMT Architecture Internet Time synchronization

7. AMT Architecture control server amt-daemon sender receiver sender DB delivery agent storage server DB AMT Processes

8. AMT Architecture control server amt-daemon sender receiver sender DB Measurement Procedure

9. AMT Architecture control server amt-daemon DB delivery agent storage server DB Data Gathering Procedure

10. Deployment of AMT in APAN-KR Deployment for APAN-KR  Main Nodes  SNU, KAIST, KT, KU, ETRI  Setup Due-day  11, 2000 Deployment for other APAN org.  ? This project is being performed by MMLAB at SNU and KT(Korea Telecom).