Re: [Softwires] Softwire Interim Meeting, 2011 Sep. 26-27

[Naoki Matsuhira <[e-mail]>]

Ole,

Thank you. I don't worry.

And thank you for the question.

In past experiments, SA46T prefix is assigned from native IPv6 address.
SA46T-AS prefix is the same.

If using SA46T or SA46T-AS in a AS(Provider) closely, SA46T prefix and SA46T-AS prefix does not advertise outside AS, so any prefix may possible, however we use SA46T prefix from native IPv6 address.

We also have two inter AS experiments. One is NICT and ThaiSarn and this case, SA46T prefix is allocated from NICT IPv6 address space, and the other is Interop Tokyo Shownet, NICT and ThaiSarn, this case, SA46T prefix is allocated from Interop Tokyo Shownet IPv6 address space.

Following is the another information from Thailand. 

http://www.apan.net/meetings/India2011/Session/Slides/fit/3-2.pdf

Naoki Matsuhira


On Sun, 25 Sep 2011 16:30:17 +0800
Ole Troan <[e-mail]> wrote:

> Naoki,
> 
> > Please don't forget SA46T-AS. SA46T-AS have IPv4 address sharing capability with SA46T extension.
> 
> agree, apologies, I missed the AS part.
> 
> remind me to ask you some questions about how you can use SA46T-AS for connecting IPv4 islands across an IPv6 network without having to assign special SA46T-AS prefixes, different from native IPv6 ones...
> 
> cheers,
> Ole
> 
> > On Sun, 25 Sep 2011 15:28:28 +0800
> > Ole Troan <[e-mail]> wrote:
> > 
> >> all,
> >> 
> >> we're working on many interrelated problems:
> >> 
> >> 1. DS-lite with A+P (SMAP)
> >> 2. Provisioning of IPv4 over DS-lite (4over6)
> >> 3. Stateless IPv4 address sharing over IPv6 (4rd, dIVI)
> >> 4. Stateless IPv4 over IPv6 tunneling (SA46)
> >> 
> >> given that the main focus of the interim is 3. let me propose an alternative agenda for Monday.
> >> same topics, just different structure.
> >> 
> >> Monday:
> >> 1. Intro, logistics, chairs
> >> 
> >> 2. Stateless IPv4 address sharing overview and requirements
> >>  - Xiaohong: http://tools.ietf.org/html/draft-boucadair-behave-ipv6-portrange-04
> >>  - Xiaohong: http://tools.ietf.org/html/draft-boucadair-softwire-stateless-requirements-00
> >>  - Satoru: http://tools.ietf.org/html/draft-ietf-softwire-stateless-4v6-motivation-00
> >>  - Wojciech: http://tools.ietf.org/html/draft-dec-stateless-4v6-03
> >>  - Xiaohong: http://tools.ietf.org/html/draft-deng-v6ops-aplusp-experiment-results-01
> >> 
> >> 2.1. dIVI
> >>  - Xing: https://datatracker.ietf.org/doc/draft-xli-behave-divi-pd
> >>  - Xing: https://datatracker.ietf.org/doc/draft-xli-behave-divi
> >> 
> >> 2.2. 4rd
> >>  - Tetsuya: http://tools.ietf.org/html/draft-murakami-softwire-4rd-00
> >> 
> >> 2.3 Summary:
> >>  - Ole Troan: Comparision between encapsulation and translation
> >>  - Hui Deng: Comparision between encapsulation and translation
> >> 
> >> 2.4. Stateless address mapping algorithms
> >>  - Ole port algorithm requirements, selection criteria
> >>  - Remi: http://tools.ietf.org/html/draft-despres-softwire-stateless-analysis-tool-00
> >>  - Xiaohong: http://tools.ietf.org/html/draft-bsd-softwire-stateless-port-index-analysis-00
> >> 
> >> Tuesday:
> >> 3. DS-lite enhancements (4over6, NAT bypass...)
> >> 4. Operator-session
> >> 5. Conclusions
> >> 
> >> cheers,
> >> Ole
> >> 
> >>> ===================================================
> >>>                    AGENDA
> >>> ===================================================
> >>> ---------------9/26 Monday 9:00-17:30---------------
> >>> 
> >>> FIT BUILDING 1-315, TSINGHUA UNIVERSITY
> >>> 
> >>> 1.Intro, logistic (30min) - Chairs
> >>> 9:00-9:30
> >>> Taxonomy, problem space: (stateful/stateless, translation/tunneling, etc.)
> >>> Starting point: operator-driven Stateless motivation draft and the
> >>> 4-quadrant discussion at Quebec
> >>> Goal: have a common terminology
> >>> 
> >>> 
> >>> 2. Deep Dive (7hours) - Chairs and presenters
> >>> Technical dive in all proposal as they stand today
> >>> Goal: understand the various proposals according to the common terminology
> >>> and how they fit in the problem space
> >>> Goal2: Refine terminology/problem space as we go
> >>> 
> >>> 9:30-10:30 Xiaohong Deng
> >>> 1. Architectural considerations of Stateless A+P with a focus on SMAP
> >>> http://tools.ietf.org/html/draft-boucadair-behave-ipv6-portrange-04
> >>> 2. DHCPv6 Options for Shared IP Addresses Solutions
> >>> http://tools.ietf.org/html/draft-boucadair-dhcpv6-shared-address-option-00
> >>> 
> >>> 10:30-10:45 Coffee break
> >>> 
> >>> 10:45-11:15 Peng Wu
> >>> DHCPv4 over IPv6
> >>> http://datatracker.ietf.org/doc/draft-cui-softwire-dhcp-over-tunnel
> >>> 
> >>> 11:15-12:15 Naoki Matsuhira
> >>> Motivation for developing SA46T and SA46T-AS
> >>> http://tools.ietf.org/html/draft-matsuhira-sa46t-motivation-00
> >>> SA46T & SA46T-AS technology dive
> >>> http://tools.ietf.org/html/draft-matsuhira-sa46t-spec-02
> >>> http://tools.ietf.org/html/draft-matsuhira-sa46t-as-00
> >>> 
> >>> --------------- 12:15-13:30 Lunch ---------------
> >>> 
> >>> 13:30-14:00 Tetsuya Murakami
> >>> IPv4 Residual Deployment on IPv6 infrastructure - protocol specification
> >>> http://tools.ietf.org/html/draft-murakami-softwire-4rd-00
> >>> 
> >>> 14:00-14:30 Jacni Qin
> >>> Stateless Address Mapping for IPv4 Residual Deployment (4rd)
> >>> http://tools.ietf.org/html/draft-despres-softwire-4rd-addmapping-00
> >>> 
> >>> 14:30-15:30 Wojciech Dec
> >>> 1. Stateless 4Via6 Address Sharing
> >>> http://tools.ietf.org/html/draft-dec-stateless-4v6
> >>> 2. Stateless port mapping algorithms overview
> >>> 
> >>> 15:30-15:45Coffee break
> >>> 
> >>> 15:45-16:15 Qiong Sun
> >>> Lightweight 4over6
> >>> http://tools.ietf.org/html/draft-cui-softwire-b4-translated-ds-lite-01
> >>> 
> >>> 16:15-17:15 Xing Li
> >>> 1. dIVI-pd: Dual-Stateless IPv4/IPv6 Translation with Prefix Delegation
> >>> https://datatracker.ietf.org/doc/draft-xli-behave-divi-pd
> >>> 2. dIVI: Dual-Stateless IPv4/IPv6 Translation
> >>> https://datatracker.ietf.org/doc/draft-xli-behave-divi
> >>> 
> >>> 17:30-21:00 Socail Event (depart at FIT West Lobby at 17:30)
> >>> 
> >>> 
> >>> --------------- Tuesday 8:30-17:30 ---------------
> >>> 
> >>> 8:30-9:00 CERNET Operation Center tour (FIT 1-101, TSINGHUA UNIVERSITY)
> >>> 
> >>> FIT BUILDING 1-315, TSINGHUA UNIVERSITY
> >>> 
> >>> 9:00-10:00 Gang Chen
> >>> 1. 4via6 Stateless Translation
> >>> http://tools.ietf.org/html/draft-murakami-softwire-4v6-translation-00
> >>> 2. Prefix Delegation in 4V6
> >>> http://www.ietf.org/internet-drafts/draft-chen-softwire-4v6-pd-00.txt
> >>> 
> >>> 10:00-10:30 Xiaohong Deng
> >>> DS-Lite AFTR NAT Bypass: Co-located B4 and NAT Model
> >>> http://tools.ietf.org/id/draft-zhou-softwire-b4-nat-02.txt
> >>> 
> >>> 10:30-10:45 Coffee break
> >>> 
> >>> 
> >>> 3.Invited talks from operators (90min)
> >>> Operator's perspective
> >>> 
> >>> 10:45-11:15 Satoru Matsushima
> >>> An operator's view, address mapping in particular with our cases
> >>> 
> >>> 11:15-11:45 Xing Li
> >>> The operational requiements and the experience of the single and dual
> >>> stateless translation concerning CERNET (IPv4) and CNGI-CERNET2 (IPv6).
> >>> 
> >>> 11:45-12:15 ChongfengXie
> >>> ChinaTelecom
> >>> 
> >>> --------------- 12:15-13:30 Lunch ---------------
> >>> 
> >>> 
> >>> FIT BUILDING 1-515, TSINGHUA UNIVERSITY
> >>> 
> >>> 4.Divide& conquer (2 hours)
> >>> Map technologies into problem space
> >>> Goal: analyze overlaps & differences
> >>> 
> >>> 13:30-14:00 Ole Troan
> >>> Comparision between encapsulation and translation
> >>> 
> >>> 14:00-14:30 Linjian Song
> >>> Head compression
> >>> 
> >>> 14:30-15:00 Hui Deng
> >>> Comparision between encapsulation and translation
> >>> 
> >>> 15:00-15:30 Ole Troan
> >>> Port mapping rules
> >>> 
> >>> 15:30-16:00 R??mi Despr??s
> >>> Port mapping rules
> >>> 
> >>> 16:00-16:30 Coffee break
> >>> 
> >>> 5. Path forward (1 hour)
> >>> 16:30-17:30
> >>> Goal: evolution of technologies, integration with existing mechanism, gap
> >>> analysis
> >>> Goal: winnow down list of candidates
> >>> Chairs
> >>> 
> >>> 
> >>> Alain and Yong
> >>> 
> >>> 
> >>> 
> >>> _______________________________________________
> >>> Softwires mailing list
> >>> [e-mail]
> >>> https://www.ietf.org/mailman/listinfo/softwires
> >> 
> >> _______________________________________________
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> > 
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