DB 0.5

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IPv6 Activities and Deployment Strategy in
KT KT Technology Lab Hyoungsoo
Kim kimhsoo_at_kt.co.kr 2004. 2 26
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Contents

• I. IPv6 Activities in KT
• II. IPv6 Deployment Strategy
• III. Concluding Remarks

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I. IPv6 Activities in KT
1. Overview

• Brief history of IPv6 in KT

• In 1999

• We subscribed to the international IPv6 Forum
• We got public IPv6 address from the APNIC (first
  time in Korea)
• We deployed the first native IPv6 network in
  Korea (non-commercial research network)

• In 2001

• We did IPv6 field experiment with BT
• We tested mobile IPv6 in the Lab.

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I. IPv6 Activities in KT

• In 2002

• We tested transition mechanisms
• We did performance tests with commercial routers

• In 2003

• We did large scale interoperability and
  performance tests with commercial products
• We have developed IPv6 Firewall
• We have developed high quality video conferencing
  S/W based on IPv6

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I. IPv6 Activities in KT

• IPv6 address allocation in Korea (16 sTLAs)
• Korea Telecom 20010220/32 (19991006)
• Korea Telecom 200102b0/32 (20010102)
• ETRI 20010230/32 (19991124)
• Dacom 20010270/35 (20000908)
• Hitel 20010280/32 (20000927)
• Hanaro Comm. 20010290/32 (20001030)
• KRNIC 200102b8/32 (20010115)
• SKT 200102d8/32 (20010406)
• KREONET2 20010320/32 (20010823)
• Unitel 20010330/32 (20010920)
• Thrunet 20010378/35 (20011218)
• Han Internet 20010390/32 (20020207)
• GG Networks 200103A8/32 (20020402)
• Dreamline 20010C48/32 (20020812)
• K.R.Line 20010C88/32 (20020919)
• Onse Comm. 2001OCF0/32 (20030122)

(APNIC Annual report 2002)
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I. IPv6 Activities in KT
2. IPv6 Test in the Lab.

• Goal
• Verify the interoperability and performance of
  the commercial IPv6 products before we build
  Premium/NGN backbone network

• Test Period
• 2003. 10. 6. 10. 18.

• System Under Test
• Cisco GSR12416(320G)
• Juniper M40(40G), T640(640G)
• Procket8812(960G)

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I. IPv6 Activities in KT

• Test Configuration

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I. IPv6 Activities in KT

• Test Items
• Routing protocols

• IS-IS
• OSPFv3
• BGP4

• Performance of Routers

• IPv6 only
• Dual stack

• IPv6 Tunneling Mechanism

• 6to4 Tunneling
• IPv6 over MPLS (6PE) LDP, RSVP-TE
• IPv6 over Martini Circuit

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I. IPv6 Activities in KT

• Test conclusions
• HW based routers can forward 100 IPv6 packets,
  but CPU based routers show very poor forwarding
  performance.
• IPv6 over MPLS(6PE) has better performance than
  6to4 tunneling.
• All routers operate stably for BGP4
• Some routers need more stabilization for IS-IS
• Some routers need more stabilization for OSPFv3

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I. IPv6 Activities in KT
2. IPv6 Field Experiences

• KT deployed the first native IPv6 network in
  Korea in 1999
• KOREN(KOrea advanced Research and Education
  Network)
• Major customers are universities and research
  institutions
• Non-commercial but production-level network since
  it has been deployed (funded by MIC KT)
• IPv4/IPv6 dual stack (including tunnel service)

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I. IPv6 Activities in KT

• KOREN IPv6 Topology

NGIX
SingaREN
Singapore
Seoul-XP
6 M
Renater2
SEOUL
Europe
10 M
GEANT
GSR
USA
7513
155 M
CAnet3
Internet2
SUWON
TAEGU
36 Customers (Universities Research
Institutions)
GSR
GSR
GSR
DAEJON
1 G
GSR
Japan
GSR
BUSAN
KWANJU
WIDE
APAN-JP
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I. IPv6 Activities in KT

• KOREN-SingAREN IPv6 traffic

• Daily Status

• Yearly Status

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I. IPv6 Activities in KT

• KOREN-TEIN IPv6 traffic

• Daily Status

• Yearly Status

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I. IPv6 Activities in KT

• KOREN Traffic Status (Daily) - Aggregated

Traffic
IPv6/IPv4 ()
IPv6
IPv4
In
Out
In
Out
Out
In
4.9K
0.004
0.008
60M
5K
Seoul
110M
6.7K
0.005
89M
0.01
9.1K
125M
Daejon
1K
0.067
0.052
2.5M
1.3K
Kwanju
1.5M
2.6K
2M
2.8K
0.013
0.14
20M
Busan
1K
1K
15M
0.007
5M
Taegu
0.02
1K
0.013
8M
0.013
1K
Suwon
8M

• KOREN Traffic Status (Daily) - International link

IPv6/IPv4 ()
IPv6
IPv4
Traffic
In
Out
In
Out
In
Out
91.9M
80.5M
Japan
1.3M
0
27
265.4K
0.01
0
Singapore
1.3K
930
10.7M
4.0M
0.009
0.033
Europe
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II. IPv6 Deployment Strategy
1. IPv6 Applications

• Peer-to-Peer communications

Broadband Internet
Ubiquitous Internet
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II. IPv6 Deployment Strategy

• Home IPv6 Service

V4/V6 Dual Stack PC
KORNET (IPv4)
Existing Megapass User (IPv4 User)
Home IPv6 Tunnel Gateway
IPv4
IPv6
On-line Game
xDSL Modem
V4/V6 Dual Stack Notebook
Wireless LAN
Home Phone (VoIP)
Video Telephone
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II. IPv6 Deployment Strategy

• Mobile IPv6

• Large address space
• Route optimization
• Network mobility

IMT-2000
Portable Internet(2.3G)
Telematics
Wireless LAN
Seamless Mobility
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II. IPv6 Deployment Strategy
2. Deployment Strategy

• Phase 1 ( 2004)
• Build IPv6 testbed and field trial
• Develop IPv6 business model

• Phase 2 (2005 2006)
• Deploy dual stack from the access network
• Launch IPv6 commercial service for the advanced
  users
• Korea Information Infrastructure-Government
• Digital Home IPv6 trial service
• Mobile IPv6 for the Portable Internet (2.3G)

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II. IPv6 Deployment Strategy
2. Deployment Strategy

• Phase 3 (2007 2009)
• Diffuse dual stack to the backbone network
• Application transition from IPv4 to IPv6

• Phase 4 (2010 )
• Deploy IPv6 only equipments from the backbone
  network
• Evolve to the IPv6 only network/service
• Completion of all-IPv6 network

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III. Concluding Remarks

• Evolution to IPv6 is a synthetic art
• There is no strong driving force for transition
  yet
• More applications should be developed
• Network equipments should be more stabilized for
  the successful commercial deployment

Thank You !