Transcript PPT 5.0M
Active Measurement Project
for KREONET & APAN
Manhee Lee
KISTI/Supercomputing Center
http://amp.kreonet2.net/
KREONET
High-Tech S&T applications based
KREONET/KREONet2/HPCNet
High-Tech S&T devices
(Supercomputers, CAVE,DB Servers…)
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
AMPlet1
HTTP
Request
Web
Service
System cron
process
AMP Server
trigger
am_master
apache
fping
traceroute
File write
File read
am_slave
cgi-bin
am_slave
File read
am_slave
ping
traceroute
ping results
traceroute results
AMPlets
File write
ping results
traceroute results
ping results
tracerouteping
results
results
traceroute results
AMPlet2
AMPlet3
ping
traceroute
Deployment Map of
AMP KREONET
KIST
Inha
NCA
KISTI(4)
KAIST CNU
POSTECH
Chonnam
KJIST Kumho
TIT
AMP KREONET
Official AMP KREONET &
KOREA & APAN homepage
As of 2003.1, 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
operator
AMP
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
Users
AMP
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?
Nobody knows it, but AMP APAN can do.
How many collaborative researches are there in APAN?
Some, and AMP APAN can be one of them.
Do we have APAN performance measurement infrastructure?
No idea, but AMP APAN can do
Is it difficult to make AMP APAN?
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
http://amp.kreonet2.net/
Mail [email protected]
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-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=3000000” in /etc/rc.conf
change root mail address in /etc/aliases. “root:
[email protected]”
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 [email protected]
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 [email protected]
AMP KREONET director: Okhwan Byeon [email protected]
NLANR/MNA manager: Ronn Ritke [email protected]
AMP Project Leader : Tony McGregor [email protected]
Comments or Questions?
Thanks…