NCHC & KISTI’s User Controlled LightPaths (UCLP); demonstrations at APAN Taipei 2005 Hervé Guy...

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NCHC & KISTI’s User Controlled LightPaths (UCLP); demonstrations at APAN Taipei 2005 Hervé Guy [email protected] Friday 2005.8.26; 14:00-15:30; Room C

Transcript of NCHC & KISTI’s User Controlled LightPaths (UCLP); demonstrations at APAN Taipei 2005 Hervé Guy...

NCHC & KISTI’sUser Controlled LightPaths (UCLP);

demonstrations at APAN Taipei 2005

Hervé [email protected]

Friday 2005.8.26; 14:00-15:30; Room C

NCHC & KISTI’s UCLP demo at APAN Taipei 2005

> Hervé Guy’s BIO– I am working with CANARIE INC, at Ottawa, in

CANADA since 1995.– I have joined the Advanced Research Network

group, which are responsible of the deployment of CA*net Network in Canada, in 1998.

– I was leading the “STATS” initiative on CA*net 4 between 1998 and 2002.

– I am now managing the development of the UCLP (User Control LightPath) Software since 2003.

NCHC & KISTI’s UCLP demo at APAN Taipei 2005

> UCLPv1– History & deployment of UCLPv1 on CA*net 4– What is not and is UCLP?– International deployment of UCLPv1

> NCHC’s UCLPv1 demo at APAN Taipei> KISTI’s UCLPv1 demo at APAN Taipei> UCLPv2

– What will be UCLPv2?

NCHC & KISTI’s UCLP demo at APAN Taipei 2005

User Controlled LightPaths version 1;

UCLPv1

CANARIE's Directed Research Program History of UCLPv1 Software

> Co-funded by Cisco Canada and CANARIE (http://www.canarie.ca/funding/research/projects.html)

> Held in 2003.> 10 proposals submitted> 3 proposals selected

– University of Waterloo (http://bbcr.uwaterloo.ca/~canarie/index.htm)

– University of Ottawa - Communications Research Centre (CRC) (http://phi.badlab.crc.ca/uclp/)

– Université du Québec à Montréal (UQAM) (http://www.teleinfo.uqam.ca/opticnet/)

UCLPv1 deployment on CA*net 4 (http://www.canarie.ca/canet4/uclp/uclponc4.html)

> For ease of management of lightpath on CA*net 4, a user must comply with CANARIE's Lightpath Allocation Policy and must fill out CANARIE's Lightpath Request Form.

> Only registered source IP addresses will be permitted to connect to the lab. Requests are to be sent to [email protected].

> UCLPv1 deployed:– University of Waterloo v1.5:

• https://uclp01.canet4.net/web-uclp/.

– University of Ottawa - Communications Research Centre (CRC) v1.4beta;

• Federation 3rdw: http://205.189.33.55:8080/uclpclient.jnlp;

– Université du Québec à Montréal (UQAM) v1.4.• Via the UCLPGUI.exe client ().

> Log in as a normal user. C4NOC are administrative users.

What is not UCLP? Confusion about UCLP

> UCLP is often wrongly associated with other dynamic optical switching protocols.

> UCLP has nothing to do with optical control planes or providing bandwidth on demand.

> Primary purpose is NOT– a dynamic switched optical networks– a reservation and leasing of wavelength resources– an end-to-end optical VPNs– an inter-domain connection of LightPaths

What is UCLP? UCLP Objectives

> UCLP is an IP network provisioning and configuration tool– it allows the creation of application or discipline specific IP

networks that can be built from optical paths obtained from a mix of heterogeneous network resources across different management domains

– Similar in concept to X-bone VPN overlay network, except at layer 1

> User controlled traffic engineering– Active replacement for Sockeye and Route Science– Alternative to MPLS

What is UCLPv1? It talks about users empower the network!

1st & 2nd wavelengths – 10 Gbps

3rd wavelength – 10 Gbps

4rd and 5th wavelengths are coming soon…

CA*net 4;a layer 1 network

What is UCLPv1?What is a LightPath?

> According to “User controlled Lightpath Definition Document (http://www.canarie.ca/canet4/library/c4design/user_controlled_definition.ppt)”, created by Bill St. Arnaud in December 2002:

– Any uni- or bi-directional point to point connection with effective guaranteed bandwidth

> Examples of LightPaths on CA*net: STS channels on a SONET or VC4 channels on SDH circuits

LightPath has Bandwidth, start and

end points

ons-tor01; slot 5; port 1; channel 72

ons-ott01; slot 12; port 1; channel 72

STS24c (OC24)

What is UCLPv1?CA*net 4 is a pool of LightPaths

- Which have been created by UCLP admin (e.g. c4noc).

What is UCLPv1?What are the Users?

?

You!

That simply wantsto best achieve

your job!

What is UCLPv1? Users takecontrol of LightPaths on CA*net4

- Ownership of LightPaths is the starting point…

- Ownership period has a start now and end dates.

What is UCLPv1? Users creates an e2e connections on CA*net4

concatenate LPs

access LPs

access LPs

- Users access the LightPaths and run their applications during the requested period.

What is UCLPv1? It talks about users empower the network!

> During the period where a user owns the LightPaths, it could– Partition LightPaths;– Concatenate LightPaths;– Advertise unused LightPaths (i.e. make them

available for another users).– Create/delete the e2e connections (access

LightPaths).

What is UCLPv1? Users deletes the e2e connections on CA*net4

At the end of the ownership period, the users loose the ownership ofthe LightPaths. LightPaths come back the pool .

International deployment of UCLPv1

> i2CAT/UPC Network (ES)– U. of Ottawa - Communications Research Centre

(CRC) - i2CAT/UPC;

> SURFnet/NetherLight (NL)– University of Waterloo:– U. of Ottawa - Communications Research Centre

(CRC)– Université du Québec à Montréal (UQAM)

> www.grangenet.net (AU)– U. of Ottawa - Communications Research Centre

(CRC)

UCLPv1 deployment onTWAREN, Taiwan, Asia

NCHC’s UCLPv1 demo at APAN

Taipei 2005

1919

UCLP Demonstration In 20th APAN meetings

2005 / 08 / 26

Te-Lung LiuAssociate Researcher

NCHC, Taiwan

2020

NCHC is Taiwan’s only National Lab dedicated to High-Performance Computing & applications Networking & its applications development

Mission Provide resources and service Research and development Offer education, training, and outreach

Key Events 1991: Government approved the establishment proposal

1993: Completed HQ new building in Hsinchu Science Park

2002: Established a branch in Tainan (in Southern Taiwan)

2003: Transformed into an non-profit organization

2005: ISO 9001:2000 certified / NOC building opening

National Center for High-performance Computing

NCHC

2121

TaiWan Advanced Research and Education Network

TWAREN TWAREN - Successor of TANet2 TWAREN - Part of a comprehensive, six-year national development plan

formulated by the government to stimulate creativity and foster talents. TWAREN Goals

• To provide a network infrastructure for academic and research community.

• To stimulate creativity and foster talents TWAREN Architecture

• TWAREN is a new hybrid network with 20G POS and DWDM technologies at its core.

• Dual circuits form the backbone. Each of the two local carriers provides a 10 G POS network linking the four core nodes.

• There are eleven GigaPoPs, each links to the core node at 20 Gbps and 1 dark fiber.

• Hierarchical topology: 3 layers (core, GigaPoPs, end nodes)

• Highly scalable and flexible

• Providing multiple services

2222

TWAREN Connections to North America

Taipei

Hsinchu

Taichung

Tainan

NTU

NSYSUNCKU

CCU

NCNU

NCHU

NTHU

NCTUNCU

SinicaNTU

StarLightStarLight CANARIECANARIE

CANARIECANARIEPacific WavePacific Wave

Pacific Wave Pacific Wave SouthSouth

MAN LANMAN LAN

3*STM-4+2*STM-1

3*STM-4+3*STM-1 2.5G

2G

1.25G

1.25G1.25G

1.8G

2.5G

2323

NCHC Relationship with UCLP NCHC Relationship with UCLP

Lease a lightpath from CANARIE between Seattle and Chicago.

Lightpath between TWAREN/CA*Net4/HEAnet (18,000km)5-point videoconferencing among Taiwan (Asia),

Canada (NA) and Ireland (Europe) in March, 2004

UCLP training class in Taiwan by CANARIE engineers, joined by Korea via videoconferencing

Collaborated with CANARIE to make UCLP compliant with Cisco ONS 15454 SDH

Establish NCHC UCLP Lab: ONS 15454 SDH

Demonstration in 19th APAN meetings (41,000km)

UCLP beta tester for ONS SDH version

2424

ASCC-15454ASCC-7609 TP-CHT-15454

Seattle-15454

SF-15454TP-15600

HC-15600 TN-15600

TN-15454HC-15454

To CA*Net4 ONS@Seattle

ASnet

APANVenue@TP

NCHC@Hsinchu NCHC@Tainan

TWAREN

10GEGE

Demo Setup in NCHC

2525

ASCC-15454ASCC-7609 TP-CHT-15454

Seattle-15454

SF-15454TP-15600

HC-15600 TN-15600

TN-15454HC-15454

To CA*Net4 ONS@Seattle

ASnet

APANVenue@TP

NCHC@Hsinchu NCHC@Tainan

TWAREN

10GEGE

Demo Setup in NCHC

Step 1. RED LP is created

as a virtual LPO

2626

ASCC-15454ASCC-7609 TP-CHT-15454

Seattle-15454

SF-15454TP-15600

HC-15600 TN-15600

TN-15454HC-15454

To CA*Net4 ONS@Seattle

ASnet

APANVenue@TP

NCHC@Hsinchu NCHC@Tainan

TWAREN

10GEGE

Demo Setup in NCHC

Step 2. Green LP is

provisioned by UCLP

2727

ASCC-15454ASCC-7609 TP-CHT-15454

Seattle-15454

SF-15454TP-15600

HC-15600 TN-15600

TN-15454HC-15454

To CA*Net4 ONS@Seattle

ASnet

APANVenue@TP

NCHC@Hsinchu NCHC@Tainan

TWAREN

10GEGE

Demo Setup in NCHC

Step 3. Blue LP is provisioned

by UCLP

2828

GE GE

GE

Hsinchu

Venue Tainan

Multi-point CommunicationStream

Stream

Stream

Virtual TopologyVirtual Topology

2929

AcknowledgementsAcknowledgementsSpecial thanks to the members of APAN

demo team

CanarieHervé GuyJun JianThomas Tam

KISTIDongkyun KimWontaek HongJongWon Kim

NCHCEugene Yeh Jing-Jou Yen Te-Lung Liu Bob Wang Jazz Wang Jake Tsai Daniel Lin

…and every participants!

UCLPv1 deployment onKREOnet, Taiwan, Asia

KISTI’s UCLPv1 demo at APAN

Taipei 2005

UCLP Demonstration

Aug 26, 200520th APAN Meeting, Taipei

Wontaek HongSupercomputing Center, KISTI

Contents

• KISTI & KREONET

• GLORIAD

• UCLP Deployment on KREONET

• Stereoscopic HD Video Setup for Demo

• Demonstration

Korea Institute of Science and Technology Information

Major Functions

Knowledge Infrastructure for Digital Research - Advancement of Supercomputer and KREONET - Research on the next generation technology, knowledge- based GRID, e-Science and research network

National Role

Supercomputing Center

Knowledge Information Portal - Information collection, management, and diffusing system - Digital information dissemination environment using DOI, MDR

Value-added Information - In-depth analysis and feasibility study - Use of Supercomputer for BT and NT information

Science & TechnologyInformation Center

Knowledge ResourcesDevelopment Center

Korea Research Environment Open Network

• KREONet2– National Scientific Research Network funded by

MOST (Ministry of Science and Technology) since 1988

– Nation-wide optical & gigabit backbone network– 12 GigaPoPs in 11 regions (5 ~ 10Gbps)– About 200 members : Universities, National

Research Labs, government organizations, etc.– High-capacity access network(1Gbps~10Gbps) : 30

members– Supporting advanced applications : e-Science and

Grid

KREONet2 Overview

Europe

Kwangju Busan

SuwonChonan

JeonjuChang-

won

Pohang

K R E O N K R E O N E TE TSeoul

KREONet2

High-Performance S&T Facilities(High-Performance Cluster/Supercomputers, Storage, Experimental Facilities, Visualization, Access Grid, DB Servers, etc.)

e-Science based KREONET/KREONet2/SuperSIReN → joining global Cyber Infrastructure

GEANT

Daegu

China/CSTNET

Incheon

Japan/SINET

APII

TEIN

DaejeonSuperSIReN

GLObal RIng Network for Advanced Applications Development

• “Global Ring” topology for advanced science applications– Little GLORIAD, founded by US, Russia, China - Jan.

2004• 4th core member participation – Jun. 2004

– NSF Award for GLORIAD (P.I. Greg Cole) – Jan. 2005

– Funding from Korean government (MOST) – Mar. 2005

• Support advanced application developments– HEP, ITER, Astronomy, Earth System, Bio-Medical,

HDTV etcBig GLORIAD with 10 Gbps Networking

Korea-Canada-US-Netherlands-Russia-China

GLORIAD TransPacific Links

Aug. 2005

KOREA KOREA (Daejeon)(Daejeon)Hong Kong

China (Beijing)

Russia (Novosibirsk)

Amsterdam

MoscowUS

Seattle

Canada

ChicagoEU

NYC

10G

10G

2.5G -> 10G

Calgary Toronto

Setup for UCLP Demo

DaejeonDaejeon

Stereo HD VoD Server

ONS15454

Cisco 4506

1GigE

ONS15454 ONS15600

GwangjuGwangju

STS24c

GIST, NetMedia LAB

KREONet2, KISTI, Korea

1GigE

HD Receiver in Taipei

TWAREN

SeattleSeattle

CA*net4, CANARIE, Canada

ONS15454 ONS15454

STS24c STS24c STS48c

STS12c

1GigE

UCLP deployment on KREONET

• History– 1G Lightpath provisioning between Daejeon-ons

and Daegu-ons– Large scale deployment of UCLP on KREONet– Deployment for APAN2005 in Taipei

• Current work– Support ASAP-4 Cards in ONS15600

• OC-N: STS-<slot>-<PIM>-<PPM>-<PORT>-<STS>• VFAC: VFAC-<slot>-<PIM>-<PPM>-<PORT>

– Design of operating with Ethernet (VLAN)• For example, Force10 switch

Stereoscopic HD Video setup for Demo

KISTI(KR) to APAN(TP) LPs

• On KREONET – via the crcott’s UCLP client

• Scenario– Log in into crcott’s UCLP– Create e2e connection between the remote

Participant and the meeting venue• Request the following LPs:

– Gwangju-ons/ slot x/ port x/ channel x-x Gwangju-ons Daejeon-ons15454

Daejeon-ons15600 ons-sea02 ons-sea01 ons-sea01/ slot 2/ port 1/ channel 25-36

– Send the HDV stream to the meeting venue– Delete the e2e connection

Acknowledgements and thanks to:

KISTIDongkyun KimWontaek HongWoojin SeokYongtae KimKREONet2 NOC

CANARIEHervé GuyTomas TamJun Jian

CA*net4 NOC

KAISTJeongho LeeYusung Kim

CANARIE, NCHC, GIST, ANF, KAIST & [email protected] researchers, and engineers

NCHCEugene YehTe-Lung LiuMing-Chang LiangJing-Jou YenBob Wang

APAN2005 Taipei UCLP Demonstration

ANF, GISTJongwon KimKi-young LeeANF HDTV TFTGIST HDTV Team

NCHC & KISTI’s UCLP demo at APAN Taipei 2005

User Controlled LightPaths version 2;UCLPv2

What is UCLPv2?Purpose

> April 2005 CANARIE issued a call for proposals for UCLPv2, with the objective– to adapt the development of the UCLP software developed

under the Directed Research program in 2003-2004 and make it robust and user friendly for wider scale deployment by providing a graphical user interface (GUI) and providing web service workflow capability.

> The project proposals were due at the end of May 2005.

> Total budget for this RFP is $1.4 million.> Now, 4 proposals has been selected.> All projects will have to be completed by March 30,

2006.

What is UCLPv2? From LightPaths to APNs…

New York

ChicagoSeattle

Victoria

Vancouver

Edmonton

CalgaryRegina

Saskatoon

Winnipeg

Toronto

Ottawa

Montreal

Fredericton

Halifax

CA*net 4 router2G Lightpath WSGbE interface WS

> Now let’s imagine that the users would like to manage a subset

of CA*net as part of their network including add/drop, routing, partition,

concatenate, etc.

What is UCLPv2?From LightPaths to APNs…

New York

ChicagoSeattle

Victoria

Vancouver

Edmonton

CalgaryRegina

Saskatoon

Winnipeg

Toronto

Ottawa

Montreal

Fredericton

HalifaxOnce the users takes the ownership of the subsetof CA*net, it would like to partition them and create the end-to-end connections on request.

What is UCLPv2?From LightPaths to APNs…

New York

ChicagoSeattle

Victoria

Vancouver

Edmonton

Regina

Saskatoon

Winnipeg

Toronto

Ottawa

Montreal

Fredericton

Halifax

Here is the result (i.e. the logical view) on NRC’s need!

What is UCLPv2?From LightPaths to APNs…

> UVLPv2 is an extension of UCLPv1’s concepts of LightPaths and Users.

> In UCLPv2, the LightPaths and Network Interface (e.g. the GigE ports) become some web services (WS) resources.

> The APN resource list is a pointer to a set of the above-defined WS,

> Finally, an APN (Articulated Private Network) is essentially a workflow script created by the Network Administrator (e.g. CANARIE) that points to a collection of Network LightPaths and Interfaces (e.g. the APN resource list), destined to the APN administrators (e.g. NRC).

What is UCLPv2?From LightPaths to APNs…

> The APN Administrators can download and run the APN workflow script and create functioning APN (e.g. NRC’s CA*net 4 APN).

> An APN could be merge to other APNs for forming a new APN (e.g. NRC’s CA*net 4 APN + NRC’s private APN + SURFnet’s APN).

> The APN could be re-advertise all or some of the APN resource list to other users.

> Finally, the normal users (e.g. NRC’s users) can take control of the APNs resources and establish their own e2e connections.

What is UCLPv2?UCLPv2 in a nutshell!

> UCLPv2– Graphical interface to allow users to create

Articulated Private Networks (APNs)– All lightpaths represented as web services

that are consumed by user by linking through portal on workflow engine

> BPEL or Keppler to link APNs together to form end to end LightPaths and to link instruments.

What is UCLPv2?The Physical Network view

STAR LIGHT HDXMAN LAN HDX

Pwave HDX

TRIUMF

OME

YVR

YEG

YCG

Winnipeg

YYZ

YUL

YOW

Halifax

10G STS partitionable interface

1Gbe non-partitionable interface

UCLPv2 GUI has multiple resource windows. Here is the resource view of ONS physical network on CA*net 4 available for APN composition.

Interface WS

LightPath WS

C4noc’s view of ONS physical network on CA*net 4.

What is UCLPv2?The Physical Network view

OC192 Interface

GbE Interface

Pwave HDX

Seattle

Vancouver

Chicago

Toronto Ottawa

Montreal

New York

ONS

ONS

STAR LIGHT HDX

ONS

MAN LAN HDX

BCnet

ONS

Here is another resource view of OME physical network on CA*net 4 available for APN composition.

What is UCLPv2?APN Resource List Creation

CANARIE ONS NetworkResources

STAR LIGHT HDXMAN LAN HDX

Pwave HDX

TRIUMF

OME

YVR

YEG

YCG

WinnipegYYZ

YUL

YOW

Halifax

Seattle

Vancouver

Chicago

Toronto Ottawa

Montreal

New York

ONSONS

STAR LIGHT HDX

ONS

MAN LAN HDX

BCnet

Amsterdam

New York

Toronto

Vancouver

Victoria

Edmonton

Ottawa

Geneva

Montreal

To Fermi

To BrookhavenNew APN Resource list composition

ONS

New York Geneva

SURFnet APN resources advertised to CANARIE

Amsterdam

CANARIE OME Network Resources

Lightpath Object Creation

Edmonton

Chicgao

EdmontonToronto

Chicago is hidden

1

2

3 4

5

Viewby

c4noc

What is UCLPv2? CANARIE provides APN resource list to TRIUMF

10G LightPath WS

1G Interface WS

5G Interface WS

1G LightPath WS

CANRIE makes Triumf’s APN available atURI: http://canarie_apns/triumf_apn.ws

Amsterdam

New York

Toronto

Vancouver

Victoria

Edmonton

Ottawa

Geneva

Montreal

To Fermi

To Brookhaven

TRIUMF’s APN Administrators downloads and runs the Triumf’s APN workflow script and create functioning Triumf’s APN.

What is UCLPv2? TRIUMF GUI harvests other APNs from UoVic, UoT…

UoToronto PhysicsTier 2

UoVictoria PhysicsTier 2

TRIUMFTier 1

CERNTier 0

Amsterdam

New York

Chicago

Toronto

Vancouver

Victoria

FERMITier 1

BrookhavenTier 1

UBC Physics

UA Physics

UoT Physics

Carleton Physics

UdM Physics

CA*net 4

Edmonton

Ottawa

Geneav

10G Lightpath WS

TRIUMFAPN

UoTAPN

UoVAPN

1G Interface WS

5G Interface WS

External links or APNs

Note: Typical View on TRIUMF UCLP GUI

Montreal

What is UCLPv2? TRIUMF/HEPnet Lightpath Object Composition GUI

Amsterdam

New York

Toronto

Vancouver

Victoria

Edmonton

Ottawa

Geneva

Montreal

To Fermi

To Brookhaven

TRIUMF APN

UoVic Campus802.11 LightpathObject

UBC CampusCWDM LightpathObject

Victoria

Vancouver

Lightpath Object for 2 Gbp Tiier 2between TRIUMF and UoVic

TRIUMFUoVic

Composition Window

What is UCLPv2? UoVic Physics use UCLPv2 GUI tool for adding Router WS to

lightpath object

Victoria

Vancouver

Lightpath Object for 2 Gbp Tiier 2between TRIUMF and UoVicCreated by TRIUMF/Hepnet

TRIUMFUoVic

Resource Window

UoVic Physics routerresourceCLI interface exposed as a WS

Vancouver

TRIUMFUoVic

1G HEPnet daisy chainrouted

What is UCLPv2? TRIUMF partitions APN and creates several child APNs

UoToronto PhysicsTier 2

UoVictoria PhysicsTier 2

TRIUMFTier 1

CERNTier 0

Amsterdam

New York

Chicago

Toronto

Vancouver

Victoria

FERMITier 1 Brookhaven

Tier 1

UBC Physics

UA Physics

UoT Physics

Carleton Physics

UdM Physics

CA*net 4

Edmonton

Ottawa

To other physics users at smaller universities Geneav

CWDMCWDM

5G Tier 1 data

2G Tier 2 data

Optionalinterfaces

Note: Typical View on TRIUMF UCLP GUI

What is UCLPv2? TRIUMF creates child APN for HEPnet

Toronto

Vancouver

Victoria

UBC Physics

UA Physics

UoT Physics

Carleton Physics

UdM Physics

CA*net 4

Edmonton Ottawa

UoVAPN

1G Interface WS

Montreal

Note: TRIUMF has created this child APN from elementsfrom the original CANARIE APN and the APNs provided by UoVictoria, TRIUMF, UoT, etc

Note: View seen by HEPnet UCLP GUI

CERN

HEPnet APNcannot see switches in Amsterdam or NY

What is UCLPv2? Resultant HEPnet routed network

UBC Physics

UA Physics

UoT Physics

Carleton Physics

UdM Physics

CA*net 4

UoVAPN

1G Interface WS

Montreal

CERN

To smaller physics depts through university router

NCHC & KISTI’s UCLP demo at APAN Taipei 2005

> [email protected];> 4 countries; 17 members; tons of emails…

> canarie.ca– Hervé Guy ([email protected])– Jun Jian ([email protected])– Thomas Tam

([email protected])

> nchc.org.tw– Jing-Jou Yen ([email protected])– Eugene Yeh ([email protected])– Te-Lung Liu ([email protected])– Jake Tsai ([email protected])

– Daniel Lin ([email protected])– Bob Wang ([email protected])– Jazz Wang ([email protected])

> kisti.re.kr– Dongkyun Kim ([email protected])– Wontaek Hong ([email protected])

> netmedia.gist.ac.kr– JongWon Kim

([email protected])– Seokhee Lee ([email protected])– Kiyoung Lee ([email protected])– Jongryool Kim ([email protected])

> gate.sinica.edu.tw– Yu-lin CHANG

([email protected])

NCHC & KISTI’s UCLP demo at APAN Taipei 2005

> Special thanks to Participants:– CANARIE (CA)

• Hervé Guy ([email protected])

– NCHC (TW)• Te-Lung Liu ([email protected])

– KISTI (KR)• Wontaek Hong ([email protected])

NCHC & KISTI’s UCLP demo at APAN Taipei 2005

Question?Hervé Guy ([email protected])

Te-Lung Liu ([email protected])

Wontaek Hong ([email protected])