Active Measurement Project for KREONET & APAN Manhee Lee KISTI/Supercomputing Center

KREONET High-Tech S&T devices (Supercomputers, CAVE,DB Servers…) High-Tech S&T applications based KREONET/KREONet2/HPCNet

Introduction to KREONET  Korea Research Environment Open Network  one of the Korea’s national core networks since 1988  Providing an advanced S&T and R&D infrastructure to 300 R&D institutes and universities  KREONet2, next generation research network, NGI(Next Generation Internet) technologies through interconnection with STAR TAP  Help researchers process large capacity of data in supercomputers and provide activation of world-class collaborative application service  As KISTI is in charge of National Grid project, KREONET is focusing on providing Grid networking service

Why AMP for KREONET? End-to-End measurement for ALL AMP sites!! Operators  One stop: just monitoring whole network by visiting AMP homepage  Simple: just clicking without ping, traceroute  Already: just printing without making graphs and tables Users  Public: Everyone is able to access  Available: Same data to both operators and users  Easy and economic: just one FreeBSD system for joining useful world-wide measurement infrastructure

AMP Architecture System cron process fping traceroute AMPlets ping traceroute ping results traceroute results am_master am_slave ping results traceroute results apache cgi-bin trigger File read TCP connection ping results traceroute results ping results traceroute results File write File read am_slave AMPlet1 AMPlet2 AMPlet3 am_slave TCP connection File write HTTP Request Web Service AMP Server ping traceroute

Deployment Map of AMP KREONET NCA KIST KISTI(4) Kumho KAIST POSTECH Chonnam CNU KJIST Inha TIT

AMP KREONET Official AMP KREONET & KOREA & APAN homepage As of , 14 monitors installed and running By region  Seoul(2), Incheon(1), Daejeon(6), Kwangju(3), Pohang(1), Pusan(1) By organization  Institute(7): NCA, KISTI(4), KIST, Kumho  University(7): CNU, Inha, KAIST, KJIST, POSTECH, Chonnam, TIT(Tongmyung Info. Tech. Univ.) By network  KREONET, KOREN, KREN, etc.

What can AMP do? How is the RTT average between PoP1 and PoP2? What is trace from PoP3 to PoP4? Were there any problems last weekend? Is the current trace different from yesterday’s? : One Stop, Simple, Already AMP operator

Average RTT From Seoul PoP(Hongneung) to Daejeon PoP(amp-one)

Traces Traces from NCA to POSTECH

Trace Change?? Trace changes from Postech to Hongneung?

What can AMP do? Do I have contiguous connection to my ISP? What is trace between user A and me? and how is the link performance? : Public, Available AMP Users

Long term status Connection between amp-korea and amp-sdsc Last 5 weeks, KOREN/KREONet 2 – STAR Tap link is very stable

Traces From KAIST SALab and KJIST Netmedia Lab From KJIST Netmedia Lab and KAIST SALab

Proposal to make AMP APAN Who knows RTT and traces among APAN members? How many collaborative researches are there in APAN? Do we have APAN performance measurement infrastructure? Is it difficult to make AMP APAN? No idea, but AMP APAN can do Nobody knows it, but AMP APAN can do. Some, and AMP APAN can be one of them. Not at all, but 50% of AMP APAN completed already. At least one AMPlet for each APAN country That’s AMP APAN!!

How to Join AMP APAN? Buy a PC  Desktop-level PC  Most AMP KREONET amplets: Pentium III 1.2GHz, 256MB, 100Mbps, 40GB. Install OS and AMPlet V1.0  OS: FreeBSD 4.3-Release or later  AMPlet V1.0  Sofware download and manual, visit Mail

5 Minutes Workshop for AMPlet Installation First. FreeBSD 4.3 or later  Partition  Distribution (bin, compat22, compat3x, crypto, info, man, src(kernel), ports, Xfree86(man, lib, bin)-no server or fonts or setup utility)  Packages(emacs, fping, sudo)  linux compatibility  others: as default.  Install Perl Utilities HTTP-Lite (KISTI down)KISTI down File-Compare (KISTI down)KISTI down

5 Minutes Workshop for AMPlet Installation Second, OS config for AMPlet  Configure OpenSSH with an ACL  Turn off all deamons + enable tcp extensions  adduser actmon  visudo and add this line “actmon ALL=ALL”  put this line “/sbin/sysctl –w kern.ipc.maxsockbuf= ” in /etc/rc.conf  change root mail address in /etc/aliases. “root:  cron_enable=”YES” in /etc/rc.conf or /etc/defaults/rc.conf  ln –s /usr/bin/perl /usr/local/bin/perl5

5 Minutes Workshop for AMPlet Installation Third and Last, AMPlet set up as actmon  AMPlet untar (KISTI down)KISTI down  check AMPlet lists in cd /home/actmon/src/pinger,./reconfigure-amp.pl  add crontab for periodic measuring  Ask your network administrator to configure firewall necessary: ICMP(IP 1), Traceroute(UDP 33434) from any hosts Optional: Telnet(TCP 23), FTP(TCP 20.21) from some hosts  Mail

Conclusion Please join us!

Links and Contacts Links  NLANR:  AMP:  AMP KREONET:  AMP APAM: (expect) Contacts  AMP KREONET Engineer: Manhee Lee  AMP KREONET director: Okhwan Byeon  NLANR/MNA manager: Ronn Ritke  AMP Project Leader : Tony McGregor

Comments or Questions? Thanks…