Re: [tsvwg] [tcpm] New Version Notification for draft-grimes-tcpm-tcpsce-00.txt

["Black, David" <[e-mail]>]

> [EXTERNAL EMAIL]
> 
> > > I do however note that SYN is described as the most important packet to
> > protect with ECN, and this is of course sent before AccECN negotiation has
> > completed.  Further, if the SYN-ACK then indicates that AccECN is *not*
> > supported by the remote end - which would be the case for both an SCE
> > endpoint and any conventional one - a conservative IW of 1 segment SHOULD
> > be conservatively selected, with no modification for the increasingly common
> > IW10 case (the default for current versions of Linux).  This incurs a flow
> > completion time delay of approximately 3 RTTs, which could be perceptible to
> > end users.
> > The draft explains: the reduction to IW1 is in the client to server
> > direction. It cites measurement studies that show it's unusual to get >1
> > initial packet in that direction anyway. And the reduction to 1 is only
> > a SHOULD. An implementation could choose 2 for instance.
> >
> > When new to the IETF, it's even more important to read the draft before
> > sending critique (cos you won't have heard all the previous discussion).
> > Otherwise it burns busy people's time on the list unnecessarily.
> 
> I'd like to remind people that comments from people new to the IETF _are_
> welcome in TCPM and elsewhere in the IETF.
> 
> Michael (as chair)

[David>] +1 (as a TSVWG chair)