Re: [tcpm] 793bis and RFC3168
Gorry Fairhurst <gorry@erg.abdn.ac.uk> Thu, 07 October 2021 11:45 UTC
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From: Gorry Fairhurst <gorry@erg.abdn.ac.uk>
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Date: Thu, 07 Oct 2021 12:45:07 +0100
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Subject: Re: [tcpm] 793bis and RFC3168
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On 07/10/2021 12:39, t petch wrote: > On 07/10/2021 08:55, Gorry Fairhurst wrote: >> On 06/10/2021 13:00, tom petch wrote: >>> Does 793bis warrant an >>> Updates 3168? >>> >>> It does change the format of the IANA registry as created by RFC3168 >>> and so would seem an update. I realise that the IANA registry will >>> point to 793bis; I am unclear whether the revised registry will have >>> any mention of RFC3168 not that it changes my view on Updates. >>> >>> Tom Petch >>> _______________________________________________ >>> tcpm mailing list >>> tcpm@ietf.org >>> https://www.ietf.org/mailman/listinfo/tcpm >> >> Thanks for asking, I looked at this. >> >> RFC 3168 gave initial contents of the registry and stated: >> >> The Transmission Control Protocol (TCP) included a 6-bit Reserved >> field defined inRFC 793 >> <https://datatracker.ietf.org/doc/html/rfc793>, reserved for future use, >> in bytes 13 and 14 >> of the TCP header, as illustrated below. The other six Control bits >> are defined separately byRFC 793 >> <https://datatracker.ietf.org/doc/html/rfc793>. >> >> This could have been handled more elegantly, but I think the RFC3168 >> text remains correct, in that the base TCP spec (RFC793, or it's bis) >> define the 6 other bits. To me, there is no change to the meaning of >> RFC3168 intended by 793bis, and I think updating a reference would not >> need to be flagged as an update. > > Yeees, I was looking at the format where 'Bit' is updated to 'Bit > Offset' and 'Assignment Notes' is added. An update? Perhaps not. > > Tom Petch > >> Best wishes, >> >> Gorry Fairhurst >> >> (as co-chair tsvwg). >> Thanks for your quick reply. I defer to the Wes/TCPM chairs to say if this is needed. If it is, then please do liaise with TSVWG to ensure the update is consistent with the expectations of TSVWG. Gorry
- [tcpm] I-D Action: draft-ietf-tcpm-rfc793bis-24.t… internet-drafts
- Re: [tcpm] I-D Action: draft-ietf-tcpm-rfc793bis-… Wesley Eddy
- Re: [tcpm] I-D Action: draft-ietf-tcpm-rfc793bis-… Wesley Eddy
- Re: [tcpm] I-D Action: draft-ietf-tcpm-rfc793bis-… Martin Duke
- [tcpm] 793bis and RFC3168 tom petch
- Re: [tcpm] 793bis and RFC3168 Gorry Fairhurst
- Re: [tcpm] 793bis and RFC3168 t petch
- Re: [tcpm] 793bis and RFC3168 Gorry Fairhurst
- Re: [tcpm] 793bis and RFC3168 Wesley Eddy
- Re: [tcpm] 793bis and RFC3168 Scharf, Michael
- Re: [tcpm] 793bis and RFC3168 Martin Duke