Just for added context ...

Paul's comment was related to proposals being discussed in TCPM about extending the TCP option space, including the one for extending the option space in the SYN. These proposals were brought up in the tcpinc discussion as solutions for some key-size issues (i.e. if the tcpm option space proposals are adopted and broadly implemented, then the keysize issues for one of the tcpinc proposals could be resolved).

--Brandon

On 08/03/2014 02:06 PM, Scharf, Michael (Michael) wrote:
Sorry - I couldn't attend the meeting. But I want to comment on this statement 
in the minutes:

"(Paul Hoffman) This should not be gated on new work in TCPM [...]"

I would really be concerned if a protocol worked out in tcpinc was incompatible 
with current work in TCPM, or if the tcpinc protocol would end up as a 
gatekeeper for new TCP extensions TCPM will come up with sooner or later.

The challenge is that we don't know how TCP will evolve in future. Still, we 
know for sure that the more complexity we add to TCP core mechanisms by adding 
new extensions, the more interoperability challenges will result. See for 
instance draft-barre-mptcp-tfo as a current example for interoperability issues 
inside TCP. IMHO we should try to avoid ending up with a bunch of future 
documents draft-ietf-tcpm-xxxxx-incompatible-with-tcpinc.

Clearly separating the functionality and minimizing changes to existing TCP 
mechanisms could be a more future-proof approach.

Michael

________________________________________
Von: Tcpinc [[email protected]]" im Auftrag von "Tero Kivinen 
[[email protected]]
Gesendet: Dienstag, 29. Juli 2014 13:48
An: [email protected]
Betreff: [tcpinc] Minutes of the IETF-90 posted

The minutes of the IETF-90 are now posted to the meeting materials:

http://www.ietf.org/proceedings/90/minutes/minutes-90-tcpinc
--
[email protected]

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--
Brandon Williams; Senior Principal Software Engineer
Emerging Products Engineering; Akamai Technologies Inc.

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