Re: [tcpm] another review of draft-ietf-tcpm-tcpsecure[-10]
Lars Eggert <lars.eggert@nokia.com> Tue, 30 September 2008 09:43 UTC
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From: Lars Eggert <lars.eggert@nokia.com>
To: ext Joe Touch <touch@ISI.EDU>
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Cc: Alfred HÎnes <ah@tr-sys.de>, tcpm@ietf.org, "ext Anantha Ramaiah (ananth)" <ananth@cisco.com>, rrs@cisco.com, "Mitesh Dalal (mdalal)" <mdalal@cisco.com>
Subject: Re: [tcpm] another review of draft-ietf-tcpm-tcpsecure[-10]
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Hi, (individual hat on) On 2008-9-29, at 20:31, ext Joe Touch wrote: > Is it possible that a SHOULD isn't considered a "updates"? RFC2119 language has nothing to do with the "updates" relationship. It's the applicability that matters. "Updates 793" on document X means "if you implement 793 you also need to implement X". That is, because "updates" is typically used when a new document fixes critical bugs in an existing specification or adds mandatory new functionality. For this document the applicability statement is basically "SHOULD implement when vulnerable, MAY otherwise". That's a conditional "updates". Unfortunately, the "updates" header isn't expressive enough to convey this. We're left with two less-than-optimal choices: Add "updates 793", which doesn't capture the conditional expressed by the applicability statement, or omit "updates 793", which is also inaccurate. My reason for suggesting to omit the "updates" - and this is a personal preference, I'll respect the WG decision and would like to head other opinions - is that a plain "updates 793" looks like a "you must implement this when implementing 793", and we had a long discussion around the applicability statement that seemed to indicate that the WG didn't want to make this blanket recommendation. Lars PS: As an example, look at the recent RFC5348, which is TFRC. It obsoletes RFC3448 (which was the old version of TFRC) but it also updates RFC4342 (DCCP's CCID3), which implements TFRC inside DCCP. The "updates" relationship here means that CCID3 implementations must now (also) implement RFC5348, i.e., the new version of TFRC.
_______________________________________________ tcpm mailing list tcpm@ietf.org https://www.ietf.org/mailman/listinfo/tcpm
- [tcpm] another review of draft-ietf-tcpm-tcpsecur… Alfred Hönes
- Re: [tcpm] another review of draft-ietf-tcpm-tcps… Anantha Ramaiah (ananth)
- Re: [tcpm] another review of draft-ietf-tcpm-tcps… Lars Eggert
- Re: [tcpm] another review of draft-ietf-tcpm-tcps… Anantha Ramaiah (ananth)
- Re: [tcpm] another review of draft-ietf-tcpm-tcps… Joe Touch
- Re: [tcpm] another review of draft-ietf-tcpm-tcps… Joe Touch
- Re: [tcpm] another review of draft-ietf-tcpm-tcps… Anantha Ramaiah (ananth)
- Re: [tcpm] another review of draft-ietf-tcpm-tcps… Lars Eggert
- Re: [tcpm] another review of draft-ietf-tcpm-tcps… Joe Touch
- Re: [tcpm] another review of draft-ietf-tcpm-tcps… Anantha Ramaiah (ananth)
- Re: [tcpm] another review of draft-ietf-tcpm-tcps… David Borman
- Re: [tcpm] another review of draft-ietf-tcpm-tcps… Anantha Ramaiah (ananth)
- Re: [tcpm] another review of draft-ietf-tcpm-tcps… Eddy, Wesley M. (GRC-RCN0)[VZ]
- Re: [tcpm] another review of draft-ietf-tcpm-tcps… Anantha Ramaiah (ananth)
- Re: [tcpm] another review of draft-ietf-tcpm-tcps… Eddy, Wesley M. (GRC-RCN0)[VZ]
- Re: [tcpm] another review of draft-ietf-tcpm-tcps… Anantha Ramaiah (ananth)
- Re: [tcpm] another review of draft-ietf-tcpm-tcps… Joe Touch
- Re: [tcpm] another review of draft-ietf-tcpm-tcps… David Borman
- Re: [tcpm] another review of draft-ietf-tcpm-tcps… Mitesh Dalal (mdalal)
- Re: [tcpm] another review of draft-ietf-tcpm-tcps… Ted Faber
- Re: [tcpm] another review of draft-ietf-tcpm-tcps… Murali Bashyam
- Re: [tcpm] another review of draft-ietf-tcpm-tcps… Lars Eggert
- Re: [tcpm] another review of draft-ietf-tcpm-tcps… Stefanos Harhalakis
- Re: [tcpm] another review of draft-ietf-tcpm-tcps… Joe Touch
- Re: [tcpm] another review of draft-ietf-tcpm-tcps… Alfred Hönes
- Re: [tcpm] another review of draft-ietf-tcpm-tcps… Anantha Ramaiah (ananth)
- Re: [tcpm] another review of draft-ietf-tcpm-tcps… Joe Touch
- Re: [tcpm] another review of draft-ietf-tcpm-tcps… Eddy, Wesley M. (GRC-RCN0)[VZ]
- Re: [tcpm] another review of draft-ietf-tcpm-tcps… David Borman
- Re: [tcpm] another review of draft-ietf-tcpm-tcps… Chandrashekhar Appanna
- Re: [tcpm] another review of draft-ietf-tcpm-tcps… Joe Touch
- Re: [tcpm] another review of draft-ietf-tcpm-tcps… Chandrashekhar Appanna
- Re: [tcpm] another review of draft-ietf-tcpm-tcps… Joe Touch
- Re: [tcpm] another review of draft-ietf-tcpm-tcps… Chandrashekhar Appanna
- Re: [tcpm] another review of draft-ietf-tcpm-tcps… Tom Petch