Re: [renum] SLAAC/DHCPv6 addr-conf operational gaps

[Sheng Jiang <[e-mail]>]

Hi, Bing,

It is better to at least mention the direction of next step - clearly redefine the flag correspondent host behavior in standards.

A couple of more detailed comments: you have used word "gap" several times, while you did not clear describe what gap it is. You have only described issues/problems. Gaps should be something that issue solved if you could fill them. Subsections of Section 3 are problem scenarios. But your subsection titles do not clear express the meaning.

Cheers,

Sheng

>-----Original Message-----
>From: Liubing (Leo)
>Sent: Wednesday, February 27, 2013 2:17 PM
>To: Sheng Jiang; [e-mail]
>Cc: [e-mail]
>Subject: RE: SLAAC/DHCPv6 addr-conf operational gaps
>
>Hi, Sheng
>
>Thanks for your comments.
>This is the first step, to see if there is consensus of agreeing the problems
>should be fixed in current standard. If so, we'll submit a draft to fix the
>ambiguous issue.
>
>B.R.
>Bing
>
>
>> -----Original Message-----
>> From: Sheng Jiang
>> Sent: Wednesday, February 27, 2013 11:37 AM
>> To: Liubing (Leo); [e-mail]
>> Cc: [e-mail]
>> Subject: RE: SLAAC/DHCPv6 addr-conf operational gaps
>>
>> This has been a historic issue. Although there was discussions several times,
>> the specification still remain ambiguous. The differences in OS
>> implementations are good proof that we need to do something in IETF.
>>
>> This document has well described the current standard status and reality
>> operational issues. However, for me, this document fails to suggest what
>we
>> may do to fix this issue, neither in the gap section or as conclusion. It is
>clear
>> that part of RFC4862 needs to be updated to make the configuration
>> behavior clear and consistent. For that, this document fails to give a feasible
>> proposal. Maybe, the authors has saved that for another follow up standard
>> track document.
>>
>> Best regards,
>>
>> Sheng
>>
>> >-----Original Message-----
>> >From: [e-mail] [mailto:[e-mail]] On
>> Behalf
>> >Of Liubing (Leo)
>> >Sent: Tuesday, February 26, 2013 3:14 PM
>> >To: [e-mail]; [e-mail]
>> >Cc: [e-mail]
>> >Subject: [renum] SLAAC/DHCPv6 addr-conf operational gaps
>> >
>> >Hi, 6man & v6ops
>> >
>> >We submitted a new draft to discuss the SLAAC/DHCPv6 interaction gaps.
>> >
>> >As we know there are several flags in RA messages regarding with the host
>> >configuration behavior, which are A (Autonomous) flag, M (Managed) flag,
>> >and O (Otherconfig) flag.
>> >For some reason, the host behavior of interpreting the flags is ambiguous
>in
>> >the standard (mainly RFC4862). I presented a draft discussing M flag
>> behavior
>> >in 6man @ietf84, and there were some feedbacks arguing the same issue.
>> >This draft analyzed all the three flags, and provided test result of current
>> >implementations, it showed the behavior of different mainstream desktop
>> >OSes have varied. The ambiguous and variation might cause operational
>> >problems, such as renumbering (used to discuss in 6renum WG and been
>> >documented in the WG drafts), cold start problem, and management
>> >gaps .etc.
>> >
>> >Your review and comments would be appreciated very much.
>> >
>> >All the best,
>> >Bing
>> >
>> >> -----Original Message-----
>> >> From: [e-mail] [mailto:[e-mail]]
>> >> Sent: Monday, February 25, 2013 5:52 PM
>> >> To: Liubing (Leo)
>> >> Cc: [e-mail]
>> >> Subject: New Version Notification for
>> >> draft-liu-bonica-dhcpv6-slaac-problem-01.txt
>> >>
>> >>
>> >> A new version of I-D, draft-liu-bonica-dhcpv6-slaac-problem-01.txt
>> >> has been successfully submitted by Bing Liu and posted to the
>> >> IETF repository.
>> >>
>> >> Filename:	 draft-liu-bonica-dhcpv6-slaac-problem
>> >> Revision:	 01
>> >> Title:		 DHCPv6/SLAAC Address Configuration Interaction
>Problem
>> >> Statement
>> >> Creation date:	 2013-02-25
>> >> Group:		 Individual Submission
>> >> Number of pages: 12
>> >> URL:
>> >>
>> http://www.ietf.org/internet-drafts/draft-liu-bonica-dhcpv6-slaac-problem-
>> >> 01.txt
>> >> Status:
>> >> http://datatracker.ietf.org/doc/draft-liu-bonica-dhcpv6-slaac-problem
>> >> Htmlized:
>> >> http://tools.ietf.org/html/draft-liu-bonica-dhcpv6-slaac-problem-01
>> >> Diff:
>> >>
>> http://www.ietf.org/rfcdiff?url2=draft-liu-bonica-dhcpv6-slaac-problem-01
>> >>
>> >> Abstract:
>> >>    This document analyzes the host behavior of DHCPv6/SLAAC
>> interaction
>> >>    issue. It reviews the standard definition of the host behaviors and
>> >>    provides the test results of current mainstream implementations.
>> Some
>> >>    potential operational gaps of the interaction are also described.
>> >>
>> >>
>> >>
>> >>
>> >> The IETF Secretariat
>> >
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