Active Measurement Project for KREONET & APAN

Manhee Lee

KISTI/Supercomputing Center

http://amp.kreonet2.net/

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, tracerouteAlready: just printing without making graphs and tables

UsersPublic: Everyone is able to accessAvailable: Same data to both operators and usersEasy and economic: just one FreeBSD system for joini

ng useful world-wide measurement infrastructure

AMP Architecture

System cron process

fpingtraceroute

AMPlets

pingtraceroute

ping resultstraceroute results

am_master

am_slave

ping resultstraceroute results

apache

cgi-bin

trigger

File read

TCP connection

ping resultstraceroute resultsping results

traceroute results

File writeFile read

am_slave

AMPlet1

AMPlet2

AMPlet3

am_slave TCP connection

TCP connection

File write

HTTPRequest

WebService AMP Server

pingtraceroute

Deployment Map of AMP KREONET

NCA

KIST

KISTI(4)

Kumho

KAIST

POSTECH

Chonnam

CNU

KJIST

Inha

TIT

AMP KREONET Official AMP KREONET & KORE

A & APAN homepage As of 2003.1, 14 monitors installed a

nd 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

AMPoperator

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

AMPUsers

Long term status Connection betwee

n amp-korea and amp-sdsc

Last 5 weeks, KOREN/KREONet2 – 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 countryThat’s AMP APAN!!

How to Join AMP APAN?

Buy a PC Desktop-level PC Most AMP KREONET amplets: Pentium III 1.2GHz, 256M

B, 100Mbps, 40GB.

Install OS and AMPlet V1.0OS: FreeBSD 4.3-Release or laterAMPlet V1.0Sofware download and manual, visit http://amp.kre

onet2.net/ Mail amp-admin@kreonet2.net

5 Minutes Workshop for AMPlet Installation

First. FreeBSD 4.3 or laterPartitionDistribution (bin, compat22, compat3x, crypto, info, ma

n, src(kernel), ports, Xfree86(man, lib, bin)-no server or fonts or setup utility)

Packages(emacs, fping, sudo) linux compatibilityothers: as default. Install Perl Utilities

HTTP-Lite-2.1.1 (KISTI down)File-Compare-1.1001 (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=3

000000” in /etc/rc.conf change root mail address in /etc/aliases. “root: root

@amp.kreonet2.net” 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) check AMPlet lists in http://amp.kreonet2.net

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 amp-admin@kreonet2.net

Conclusion

Please join us!

Links and Contacts

Links NLANR: http://www.nlanr.net/ AMP: http://amp.nlanr.net/ AMP KREONET: http://amp.kreonet2.net/ AMP APAM: http://amp.apan.net/ (expect)

Contacts AMP KREONET Engineer: Manhee Lee mhlee@kreonet2.net AMP KREONET director: Okhwan Byeon ohbyeon@kreonet2.net NLANR/MNA manager: Ronn Ritke rritke@nlanr.net AMP Project Leader : Tony McGregor tonym@cs.waikato.ac.nz

Comments or Questions?

Thanks…