Re: [rfc2462bis] relationship between M/O flags and related protocols
JINMEI Tatuya / 神明達哉 <jinmei@isl.rdc.toshiba.co.jp> Thu, 13 May 2004 11:22 UTC
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Date: Thu, 13 May 2004 20:00:14 +0900
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From: JINMEI Tatuya / 神明達哉 <jinmei@isl.rdc.toshiba.co.jp>
To: ipv6@ietf.org
Subject: Re: [rfc2462bis] relationship between M/O flags and related protocols
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>>>>> On Thu, 13 May 2004 15:53:42 +0900, >>>>> JINMEI Tatuya <jinmei@isl.rdc.toshiba.co.jp> said: > Although his suggestion was apparently supported by several key > players in this group, I'm afraid details on actual changes for > rfc2462bis may still vary. So I'll soon throw concrete idea of the > changes based on my own interpretation of his suggestion in a separate > message. And here are the proposed changes. The basic idea is: 1. clarify (change) the meaning of the M/O flags; they are just hints of availability of the corresponding services, not triggers for invoking the protocols under a certain level of requirement 2. remove "requirements" regarding these flags according to the above change 3. (optionally) make a separate document (standard or BCP) on how to interact the protocols with these flags (In the followings, I'm assuming we have agreed that - we should clearly specify the corresponding protocols for the M/O flags - the protocol for the M flag is DHCPv6 (RFC3315) - the protocol for the O flag is the "stateless" subset of DHCPv6 (RFC3736) but these details are not the essential part of the proposal.) The followings are some concrete examples of how I'd revise the document based on the idea. For 1, I'd revise the following sentence of RFC2462 Section 4 (page 9): A "managed address configuration" flag indicates whether hosts should use stateful autoconfiguration to obtain addresses. to: A "managed address configuration" flag indicates whether DHCPv6 is available for hosts to obtain addresses. For 2, - remove the notion of the ManagedFlag and OtherConfigFlag (conceptual) variables defined in Section 5.2, since these flags will become meaningless if we do not mandate invoking particular protocols by the RA M/O flags. - remove "requirement" sentences like the following one If the value of ManagedFlag changes from FALSE to TRUE, and the host is not already running the stateful address autoconfiguration protocol, the host should invoke the stateful address autoconfiguration protocol, requesting both address information and other information. (Section 5.5.3 of RFC2462) - remove Section 5.5.2 of RFC2462 (that mandates performing the "stateful" protocol when no RAs) Hopefully, these are not so different from what others imagined by Christian's suggestion. But I'm not that optimistic, and expect objections. Please make comments on the idea shown above, particularly if you have an objection. Thanks, JINMEI, Tatuya Communication Platform Lab. Corporate R&D Center, Toshiba Corp. jinmei@isl.rdc.toshiba.co.jp -------------------------------------------------------------------- IETF IPv6 working group mailing list ipv6@ietf.org Administrative Requests: https://www1.ietf.org/mailman/listinfo/ipv6 --------------------------------------------------------------------
- RE: the protocols for the M/O flags (Re: [rfc2462… Christian Huitema
- RE: the protocols for the M/O flags (Re: [rfc2462… Ralph Droms
- RE: the protocols for the M/O flags (Re: [rfc2462… Tim Hartrick
- Re: the protocols for the M/O flags (Re: [rfc2462… Fred Templin
- Re: the protocols for the M/O flags (Re: [rfc2462… Iljitsch van Beijnum
- Re: the protocols for the M/O flags (Re: [rfc2462… Alain Durand
- RE: the protocols for the M/O flags (Re: [rfc2462… Bound, Jim
- RE: the protocols for the M/O flags (Re: [rfc2462… Bound, Jim
- RE: the protocols for the M/O flags (Re: [rfc2462… Bound, Jim
- RE: the protocols for the M/O flags (Re: [rfc2462… Bound, Jim
- Re: the protocols for the M/O flags (Re: [rfc2462… JINMEI Tatuya / 神明達哉
- [rfc2462bis] relationship between M/O flags and r… JINMEI Tatuya / 神明達哉
- Re: [rfc2462bis] relationship between M/O flags a… JINMEI Tatuya / 神明達哉
- Re: [rfc2462bis] relationship between M/O flags a… JINMEI Tatuya / 神明達哉
- Re: [rfc2462bis] relationship between M/O flags a… Tim Chown
- Re: [rfc2462bis] relationship between M/O flags a… Christian Strauf (JOIN)
- Re: [rfc2462bis] relationship between M/O flags a… JINMEI Tatuya / 神明達哉
- Re: [rfc2462bis] relationship between M/O flags a… Tim Chown
- Re: [rfc2462bis] relationship between M/O flags a… Erik Nordmark
- Re: [rfc2462bis] relationship between M/O flags a… Alain Durand
- Re: [rfc2462bis] relationship between M/O flags a… Ralph Droms
- Re: [rfc2462bis] relationship between M/O flags a… JINMEI Tatuya / 神明達哉
- Re: [rfc2462bis] relationship between M/O flags a… JINMEI Tatuya / 神明達哉
- Re: [rfc2462bis] relationship between M/O flags a… Christian Strauf (JOIN)
- Re: [rfc2462bis] relationship between M/O flags a… JINMEI Tatuya / 神明達哉
- Re: [rfc2462bis] relationship between M/O flags a… Christian Strauf (JOIN)
- Re: [rfc2462bis] relationship between M/O flags a… Ralph Droms
- Re: [rfc2462bis] relationship between M/O flags a… Tim Chown
- Re: [rfc2462bis] relationship between M/O flags a… Ralph Droms
- Re: [rfc2462bis] relationship between M/O flags a… Ralph Droms
- Re: [rfc2462bis] relationship between M/O flags a… Erik Nordmark