KOREN & E2E Performance Initiative

Lee Jaehwajhlee@noc.koren21.net

The Second International Workshop on HEP Data GridCHEP, KNU, Auguest 22-23, 2003

KOREN – Current/Future

• Current(2003)– Seoul-Taejon : 2 * 2.5G SONET– Seoul-Suwon : 155M ATM– Taejon-Taegu-Pusan-Kwangju : 2.5G SONET– 40 institutions(21U+19R/32A+8G)– 20 institutions will be added– 5-10 institutions can have GbE connection– International links : APII/1G, TEIN/10M, SingAREN/6M

• Future– Seoul-Suwon : 2.5G SONET– Additional nodes, more GbE connections for institutions– 80-100 institutions– International links : APII/1G+(?), TEIN/45M+, MY/45M+, SingAREN

/?, CERNET/?

KOREN – E2E Performance

• KESG’s NCA Project: Traffic Engineering for Performance Improvement on KOREN/APII– Triggering Vigorous Activities of Cooperative Research Group (KESG) in KORE

N– Triggering Research Collaboration between KOREN & QGPOP– Improvement of Network Engineering Capability for KOREN– Sub-subjects: Measurement, Performance, Routing, Security

• KESG’s E2E Performance Initiative– Deploy a measurement infrastructure over KOREN and with Internati

onal peers– Identify performance bottleneck and tune performance

• With above 2 activities we(KESG) will support researchers requiring high bandwidth/performance

KOREN - Update

• Network Upgrade : Completed– Seoul-Taejon : 2 2.5G POS with 1.6T OLS– Taejon-Taegu-Pusan-Kwangju : 2.5G POS with EON– Seoul-Suwon : still 155M ATM with PP15K

• Members– 40 institutions : 21 universities, 19 research institutions

• By year’s end : 20 more institutions will be connected– Access link : 32 155M ATM, 9 GbE connections

• By year’s end : 5-10 more GbE connections will replace 155 ATM ones

APII/TEIN - Update

• Separate projects, but connected to KOREN

• TEIN Upgrade Still Negotiated– TEIN(RENATER 3-KOREN) : at least 45M or

more– TEIN Extension to MY : at least 45M or more

• Additional APII Circuits Negotiated– CN-KR : ?

KOREN – By Year’s End

KREOnet2

SingAREN

StarLight/STAR TAP

SeoulXP

GenkaiXP

APANTokyo

XP

Renater 3

ATM 155Mbps

ATM 45M2 * 2.5G SONET

APII GbE

TEIN 45M or more

APII 6/12M

KREOnet2

Taegu(2)

Seoul(16)

Pusan(4)Kwangju(3)

Suwon(5)

Taejon(7) 155M

KIX

ATM 2*155Mbps

GbE or 2.5G SONET

PNWG

622M

2.5G?

2.5G?

MYTEIN 45M or more

SL=TJ-TG-PU-KJ-TJ

TJ GSRTJ GSR

TG GSRTG GSR

LucentEON

LucentEON

LucentEON

LucentEON

LucentEON

LucentEON PS GSRPS GSR

LucentEON

LucentEONKJ GSRKJ GSR

LucentOLS 1.6T

LucentOLS 1.6T

SL GSRSL GSRLucentOLS 1.6T

LucentOLS 1.6T WaveStar OLS 1.6T : 1.6T

Metropolis EON : 320G

2.5G POS Connection

Node Architecture

GbE S/WGbE S/W

DWDMDWDM

ATM S/WATM S/W

To other nodesTo other nodes

To other nodesTo other nodes

Members withGbE or OC-3

Access

Members withGbE or OC-3

Access

RouterRouter

KOREN Connectivity

KORENKOREN

RENATER 3RENATER 3

GEANTGEANT

SingARENSingAREN

CA*net4CA*net4

Abilene/StarLight

Abilene/StarLight

Genkai XPGenkai XPSINETSINET

Tokyo XPTokyo XP

QGPOPQGPOP

KREONet2KREONet2

KOREN/APII/TEIN - Future

• Network Upgrade– 2.5G POS planned between Seoul and Suwon– Additional nodes to completely cover the nation

• More Members– More GbE connections for more members– Toward a total of 80 – 100 institutions

• APII/TEIN Upgrade– APII : more than 1G?– TEIN : 155M? 622M?– Extended TEIN to MY : 45M? 155M?– APII Link to CN?

• Remember that all these can be achieved by users.

Some Traffic Graph

APII/Genkai

TEIN

SingAREN

Some Traffic Graph

KOREN – KESG

• KOREN Engineering Study Group– Voluntary participation of members in study of KOREN and AP

II/TEIN Engineering• KHU, KU, CHNU, CNU, KAIST, KJIST, CJNU, HYU, etc

– Closely working with QGPOP group of Kyushu with focus on APII/Genkai link

– Closely working with Measurement WG of ANF– This year’s project granted by NCA

• Traffic Engineering for Performance Improvement on KOREN/APII

KESG – Performance Initiatives

• KESG’s NCA Project: Traffic Engineering for Performance Improvement on KOREN/APII– Triggering Vigorous Activities of Cooperative Research Group (KESG) in

KOREN– Triggering Research Collaboration between KOREN & QGPOP– Improvement of Network Engineering Capability for KOREN– Sub-subjects: Measurement, Performance, Routing, Security

• KESG’s E2E Performance Initiative– Deploy a measurement infrastructure over KOREN and with internation

al peers– Identify performance bottleneck and tune performance– Collaborating first with CRL’s performance project for APII/Genkai and

TransPAC links to share each other’s measurement infrastructure and its data

– Also planning the TEIN

KESG – PMI

• Performance Measurement Infrastructure to measure– N2n(Node-to-node)

• NetFlow format data• SNMP• Focused on link layer performance

– Eg2eg(Edge-to-edge)• Path measurement from ingress to egress• Active measurement• Focused on network/transport performance

KESG – PMI

• Components– Measurement Client (MC)

• to measure performance metrics

– Data Analysis Module (DAM)• To analyze measured values

– Database (DB)• to save analyzed values

– Visualization Module (VM)• To visualize analyzed values

– Query Module (QM)• to show past values on demand

KESG – PMI

MC MC

DAM DB

VM

QM

• Data Flows

Probe packet

raw data

analyzed data

KESG - PMI

• Cannot cover the whole E2E performance• We need more end-users’ participation in the KESG P

MI to make researchers get more performance for their research

• This collaboration will help make government feel importance of R+E network and researches based upon R+E network in Korea which all our efforts depend upon.

• We need a well-planned cooperation KOREN network engineers and applcation users. Thanks!