??6Bone???????

1
??6Bone???????
????????? ??????? ??? ????????????
2
Contents

• IPv6??
• IPv6 ???????
• IPv6 ??????
• Worldwide Testbed -- 6Bone
• ?? IPv6 ????
• ?? IPv6 ????
• ??

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• IPv6 ???????

4
IPv6 ????

• IPv6 ???????IETF Draft Standardsgt ??????
• IPv6 base spec, ICMPv6, Neighbor Discovery, PMTU
  Discovery, IPv6-over-Ethernet, IPv6-over-PPP,
• ?????????????????
• ?routing????????(??OSPF?RIPv6??)????,?RSVP,
  multicast routing, Mobile IPv6, header
  compression, A6 DNS support, ?MPLS?????????????
• ??IETF???? http//playground.sun.com/ipng

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IPv6 ????(?)

• ??????????????,???IPv4???????(seamless
  interworking)?????????????Internet????????,???????
  ????????v6???
• ?????IPv4??IPv6?????????
• ??????IPv6????VPNs, Satellite IP (DBS) ?????????
• ??????IPv6??????IP???
• ???IPv6??3G????
• ???????????IP???????????,???????IPv6
  ????IPv6??????ISP???IPv4??peering,??????????Intern
  et????Web Content????Internet?????
• UMTS R00 ??IPv6????????????

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Recent IPv6 Hot Topics in the IETF

• multihoming / address selection
• address allocation
• DNS discovery
• 3GPP usage of IPv6
• anycast addressing
• scoped address architecture
• flow-label semantics
• API issues
• (flow label, traffic class, PMTU discovery,
  scoping,)

• enhanced router-to-host info
• site renumbering procedures
• privacy addresses
• address propagation and AAA issues of different
  access scenarios
• (always-on, dial-up, mobile,)
• and, of course, transition /co-existence /
  interoperability with IPv4

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IPv6 ??????

• ???? IP stack ??????????IPv6??
• ???????
• ? 3Com, BSD(KAME), Epilogue, Ericsson/Telebit,
  IBM, Hitachi, Nortel, Sun, Trumpet
• ????beta releases
• e.g., Cisco, Compaq, HP, Linux community,
  Microsoft
• ????????
• e.g., Apple, Bull, Juniper, Mentat, Novell, SGI
• http//playground.sun.com/ipng

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IPv6 ??

• ???? the 6bone
• for testing and debugging IPv6 protocols and
  operations(see www.6bone.net)
• ?????????? the 6ren
• CAIRN, Canarie, CERNET, Chunahwa Telecom, Dante,
  ESnet, Internet 2, IPFNET, NTT, Renater, Singren,
  Sprint, SURFnet, vBNS, WIDE(see www.6ren.net,
  www.6tap.net)
• ????
• a few ISPs (IIJ, NTT, SURFnet, Trumpet,) have
  announced commercial IPv6 service or service
  trials

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IPv6 ??(?)

• IPv6 ????
• 6bone????
• regional IP address registries (APNIC, ARIN,
  RIPE-NCC)????
• IPv6 ??
• IPv6 Forum www.ipv6forum.com

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ISP IPv6 ????

• ?????????
• What vendor?
• Separate or same infrastructure as IPv4?
• ???????
• Native?
• Tunneled?
• ???????
• On the job training
• formal training - not yet

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ISP IPv6 ????

• ?????? IPv6 Routers
• limited choice
• performance
• no line-rate forwarding
• no POS interface support
• software
• transition and advanced features scheduled way
  into 2001/2002
• sometimes v6 is not in the same code release as
  other advanced features
• bug fixes are not necessarily on the fast track

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ISP IPv6 ????

• Transition and Co-existence of v4 and v6
• Lots of defined mechanisms
• Which are easily provided by an ISP?
• NAT-PT
• 6to4
• Tunnel broker
• Which mechanisms provide best performance for the
  customer?

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Transition Mechanism (1/2)

• Simple Internet Transition (SIT)
• Dual-stack strategies
• IPv6-over-IPv4 Tunneling
• Important features
• Incremental upgrade and deployment
• Minimal upgrade dependencies
• Easy Addressing
• Low start-up costs
• Tunneling techniques
• Configured Tunneling
• Tunnel end point address should be determined
  from configuration information on tunnel starting
  point
• For Host-to-Router and Router-to-Router tunnel

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Transition Mechanism (2/2)

• Automatic Tunneling
• IPv4-compatible IPv6 address is used as IPv6
  destination address
• For Host-to-Host and Router-to-Host tunnel

Dual-stack node
Dual-stack node
IPv4 Tunnel
Dual-stack node
IPv6 H
Payload
IPv6 H
Payload
IPv4 H
IPv6 H
Payload
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• IPv6 ??????

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?? IPv6 ??????

• Bootstrap Phase
• Transitional and temporary
• Concludes
• After first 100 sub-TLA IDs (/29s) have been
  allocated worldwide, or
• After a RIR has allocated 60 sub-TLA IDs in their
  region
• General Phase

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IPv6 Allocations by RIRs

• APNIC 20010200/23
• 21 allocations (/35)
• ARIN 20010400/23
• 10 allocations (/35)
• RIPE NCC 20010600/23
• 22 allocations (/35)
• 6bone 3ffe/16
• 76 allocations (59 /24 17 /28)

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APNIC Allocations by Country
Total Allocations 21
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ARIN Allocations by Country
Total Allocations 10
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RIPE NCC Allocations by Country
Total Allocations 22
21
6BONE Allocations by Country
Total Allocations 76
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• Worldwide Testbed - 6Bone

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6Bone (1/2)

• A worldwide testbed http//www.6bone.net/
• Virtual network
• Layered on IPv4-based Internet to support routing
  of IPv6 packets
• To provide the early policies and procedures for
  IPv6 transport
• Operational from June/July on 1996
• Will be replaced in a transparent way by
• Production ISP
• User network IPv6 Internet-wide transport
• Addressing Architecture
• global aggregatable unicast address
• TLA 0x1FFE is assigned to 6Bone by IANA for
  testing

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6Bone (2/2)

• Three types of sites
• Backbone Site (pTLA sites)
• With its own pTLA assignments
• To aggregate routing for other transit sites or
  leaf sites
• With BGP4 peering with a couple of backbone
  sites
• Transit Site
• To aggregate routing for leaf sites
• with at least one BGP4 peering with its backbone
  site
• Leaf Site
• With static route peering

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6Bone Architecture
Backbone Site
Backbone Site
Leaf Site
Tunnel (BGP4)
Tunnel (BGP4)
IPv4 network
Tunnel (Static)
Backbone Site
Transit Site
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6Bone Test Address
128
001 TLA RES NLA
SLA Interface ID
001 0x1ffe NLA1 NLA2
SLA Interface ID
13
8
16
64
24
3FFE3600/24 CHT-TL
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6REN (1/2)

• 6REN (IPv6 Research Education Network) is
  established in October of 1998
• Primary Goals
• To provide production quality IPv6 packet
  delivery services
• To develop operational procedures for IPv6
  networks
• To promote the deployment of IPv6 networks
• To enable early IPv6-ready application testing
  and deployment
• A voluntary coordination without fee
• Participates must use production IPv6 addresses
  and provide production quality IPv6 service.
• The 6Tap project sponsored by Canarie and ESnet
  
• To facilitate the easy interconnection of 6REN
  participants
• Over ATM interconnections

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6REN (2/2)
native IPv6 BGP peering sessions
Native IPv6 peers
6TAP router
ATM switch for IPv6 _at_star tap
Wide area ATM links from StarTAP participants
worldwide
Local OC3 link
Native IPv6 peer
ATM PVCs pre-configured
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IPv6 Forum

• Established in April 1999 by Internet vendors and
  research and education networks
• IBM, Cisco, Compaq, HP, Sun, MCIWorldcom,
  Microsoft, UUNET, Telebit Communications, Thomson
  CSF, Case, Acer, NTT, Hitachi, French G6, 6REN,
  WIDE of Japan, ...
• To dramatically improve the market and user
  awareness of IPv6
• by providing world-wide, equitable access to
  knowledge and technology
• to work closely with the Internet Engineering
  Task Force (IETF)
• The membership fee per organization is US 2500,
  per annum.

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Production IPv6 Address (1/2)
FP TLA Res NLA
SLA Interface ID
13
64
8
24
16
001 0x0001 sub-TLA Res NLA SLA
Interface ID
16
13
13
64
6
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• Assign sub-TLA to applicants
• Slow Start Mechanism are used
• To issue small address blocks until the provider
  can show an immediate requirement for larger
  blocks.
• The first allocation to a TLA registry will be a
  2001/35 block
• Right now, in Bootstrap Phase

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Production IPv6 Address (2/2)

• Examples of assigned sub-TLAs
• APNIC
• ETRI-KRNIC-KR-19991124 2001230/35
  
• NTT-JP-19990922
  2001218/35
• HINET-TW-20000208 2001238/35
  
• CONNECT-CC-AU 20010210/35
  
• ARIN
• ESNET-V6
  20010400/35
• ARIN-001
  20010400/23
• VBNS-IPV6
  20010408/35
• CANET3-IPV6
  20010410/35
• RIPE-NCC
• DE-SPACE-19990812
  20010608/35
• UK-BT-19990903
  20010618/35
• CH-SWITCH-19990903
  20010620/35
• AT-ACONET-19990920
  20010628/35

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• ??IPv6????

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??WIDE v6 Working Group

• WIDE (Widely Integrated Distributed Environment)
• ?1995???????IPv6???,?????IPv6?????,??IPv6?????????
  ?KAME ??
• ???????????IPv6???????????v6?v4??????v6??????
• WIDE????APNIC??20010200/35???????,?????????????
  ???????

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??

• ??????(6Bone-KR)
• ??6NGIX (IPv6 Next Generation Internet Exchange)
  ?IPv6????,????ETRI?KT?Dacom?Hitel?hanaro?????????s
  TLA????
• KRv6??,???????????????,???????????????????????????
  ???IPv6??(promotion)???????(address
  delegation)???
• ????IPv6 Forum ??????,???IPv6 Forum,
  ????2000?3????Korean IPv6 Forum,??????????IPv6????
  ?

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NTT-JP
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NTT-JP
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IIJIPv6 Trial Service
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IIJIPv6 Trial Service
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????

• ?????????,??????????CERNET???????IPv6??
• ????????IPv6????
• ???????sTLA???????,?Nokia?????????IPv6????????????
  

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(No Transcript)
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ESNET-V6

• ESnet is working to make this transition from
  IPv4 to IPv6 as seemless as possible for our
  customers. We are one of the few Internet Service
  Providers to be a participate in the 6Bone
  backbone. Our engineering staff is also testing
  many of the network services we are all familiar
  in an IPv6 environment.
• 6Bone
• 6Tap
• 6ren
• Whois Server
• Tunnel Registration
• Address Delegation
• http//www.es.net/hypertext/welcome/pr/ipv6.html

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vBNS IPv6 Service Overview

• Native (not tunneled) IPv6-over-ATM backbone
  since July 1998
• Dedicated hardware (Cisco 4700s and a 7507 with
  OC3/ATM) for IPv6 routing.
• Full mesh of ATM PVCs among the IPv6 routers.
• Backbone provider (pTLA) for the global 6bone.
• IPv6-capable web server www.vbns.net

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vBNS IPv6 Router Locations
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CAnet3 IPv6
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UK-BT NAT-PT Project

• BT Labs have developed an implementation of
  NAT-PT designed to run on a router running the
  FreeBSD operating system and using the KAME IPv6
  stack.
• We are making this implementation available for
  download to promote its use as an IPv4/IPv6
  interoperability mechanism.
• http//www.labs.bt.com/projects/nat_pt/index.htm

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UK-JANET

• The JANET Managed Bandwidth Service, initial
  trials are now taking place in the UK.
  Southampton has a 512Kbit MBS link to the
  European TF-TANT network.
• Southampton, UCL and Lancaster are embarking on a
  triangular IPv6 network over JANET, a project
  which should lead to IPv6 connectivity to
  Internet 2.
• Numerous router and workstation/OS vendors
  already support IPv6 these trials will report on
  interoperability issues and application
  developments.
• http//www.ja.net/conferences/networkshop/abstract
  s/ipv6.html

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• ??IPv6????

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???? IPv6?????

• 6-Bone Trial activities on CHT
• As a leaf site since 1997/12
• As a transit sit since 1998/11
• As a backbone site since 1999/02
• IPv6 address from APNIC (2000/02)
• inet6num 2001238/35
• netname HINET-TW-20000208
• Join National Telecommunication project
• Provide Broadband IP Network
• Join IPv6 testing

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CHT-TL 6Bone ????

• Techniques and Protocols Trial
• IPv6-over-IPv4 tunneling testing
• Stateless auto-configuration testing
• RIPng and BGP4 testing
• Set up Related Services
• DSN server supporting AAA records
• WWW server
• ftp server
• telnet server

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CHT-TL 6Bone ????(Continued)

• Performance and Traffic Monitoring
• Traffic monitoring over tunnels with INQMS (IP
  Network QoS Monitoring System)
• RTT (Round Trip Time) comparison between IPv4 and
  IPv6 traffic

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CHT IPv6 ????
????
IPv6 router
IPv6-over-IPv4 tunnels
??????
????
TANET
????
????
HiNet
INQMS server
Telebit
NUS-IRDU(SG)
Sprint
IPv4 Internet
Cisco
ETRI(KR)
Digital-CA
Viagenie
NTT-ECL(JP)
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CHT-TL 6Bone Tunnels - International Links
Telebit(Denmark) 3ffe0100/24
Viagenie(Canada) 3ffe0b00/24
IIJ (JP) 3ffe8020/28
ETRI (KR ) 3ffe2e00/24 2001230/35
Sprint(USA) 3ffe2900/24
Cisco(USA) 3ffe0c00/24
NTT-ECL (JP) 3ffe1800/24 2001218/35
Digital-CA(USA) 3ffe1200/24
NUS-IRDU(SG) 3ffe1600/24
CHTTL-TW 3ffe3600/24 2001238/35
NTU
NCU-1
NCU-2
CCIT
NDHU
CCU
NCKU-1
NCKU-2
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Performance Testing

• IPv6 RTT is greater than IPv4 RTT due to
  encapsulation overhead

Round-Trip Time
IPv6-over-IPv4 tunnels
IPv4 Internet
IPv6 LAN
Telebit IPv6 router
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IPv6 Traffic to Other Backbone Sites

• BGP4 KeepAlive/Update
• TCP port 179
• ICMPv6 Echo request/reply
• Generated by ping application

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CHT NTT ? 6Bone?????

• Feb 2000 Tunnel building OK between CHT-HiNet
  and NTT on 6Bone
• Next step Clear IPv6 link Field Trial
• Step 1 Performance (such as packet loss, packet
  delay, etc. on ftp or other applications)
  Testing
• (1) via ipv4 tunnel
• (2) via clear ipv6 connection
• Step 2 Configuration (anycast, multicast,
  dual-stack, etc.) and Transition Testing
• Step 3 Application Test and Business Model
  Planning
• Step 4 Network Migration Plan and Testing from
  v4 to v6

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TWNIC ?IPv6 ?????

• ? TWNIC IP ???????IPv6 ????
• ?? IPv6 web site ?????????? IPv6 ???????
• ?????? ISPs, ??, ????, ????????? IPv6 ????
• ?? ISPs ?APNIC ?? IPv6 commercial addresses
• ???? IPv6 forum

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IPv6 research in National Telecommunication
Project

• Joined Universities
• ??????
• ??????
• ??????
• Establish IPv4 Tunnels on National Broadband
  Experience Network (NBEN)
• Establish an experimental native IPv6 network in
  campus
• Provide native IPv6 services

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IPv6 Test Result in NBEN

• IPv6 Tunneling
• Test ping6
• Test http6
• Test Video program transmission
• Establish PC-based IPv6 platform
• Windows NT/2000
• Linux
• FreeBSD
• Establish IPv6 WWW server
• Establish IPv6 WWW brower
• IE5.0(Windows NT/2000)
• Mozilla(Linux)

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IPv6 Test Environment on NBEN
Linux
Windows NT
IPv6
Windows NT
Hub
CCU
3Com Router
IPv4 Network
Fiber
NTHU
Tunneling
Windows NT
NDHU
IPv6 Network
IPv4 Network
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• ??

61
IPv6????????

• ??IPv6???IPv4?????,??
• ??????????? (e.g., with respect to performance,
  multicast support, compactness, instrumentation,
  etc.)
• IPv6 ????????
• ???IPv4???????, middleware, ?????????IPv6???????
• ?????????????, ?????, ??,
• ??IPv6??????????????, ????????

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??

• IPv6 ?????IP???????,????????????????????
• IPv6??????????????????
• IANA????IPv6????
• ??IPv6??,??????????
• TWNIC ??????IPv6 ??
• ?????? ISPs ?????????????????IPv6?????
• ???????
• WWW content
• multiplayer games
• cell phones, home devices, ?

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??(?)

• IPv6 ????????
• ????,????,?????
• ????? Internet model, ??? (performance),
  ??(robustness), ??(security), ??(manageability),
  ??????????
• ?????IP???? multicast, mobility, plug-and-play,
  security, ? QoS
• ????????????
• ????????????????????????????
• ???????????????

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??? IPv6 ??

• http//www.6bone.net
• Testbed for deployment of IPv6
• http//www.apnic.net
• APNIC web site
• http//www.arin.net/regserv/ipv6
• ARIN IPv6 registration information
• http//www.arin.net/announcements/ipv6_wg.html
• ARIN working group information related to IPv6
• http//www.ripe.net
• RIPE web site
• http//playground.sun.com/ipng
• IETF standard status