[tcpm] 793bis: TCP Quiet Time

[Wesley Eddy <[e-mail]>]

I don't think I noticed anyone responding to Gorry's comment below, and 
I haven't made any alterations in the 793bis draft with regard to this 
(other than fixing some spelling mistakes).  I wanted to pull this into 
its own thread in case other people have thoughts or would like to 
discuss further what the quiet time concept's relevance is in 2020.

On 8/28/2019 11:39 AM, Gorry Fairhurst wrote:
> OLD, Section: "   The TCP Quiet Time Concept"
> - Found this section quite amusing. Is this concept widely implemented 
> in stacks?
> - The examples given need updated, for instance one example starts "At 
> 2 megabits/sec. it takes 4.5 hours to", clearly at 10 Gbps this line 
> of thinking becomes problematic.
> - There is an odd sentence that states:
> "In the absence of knowledge
>    about the sequence numbers used on a particular connection, the TCP
>    specification recommends that the source delay for MSL seconds before
>    emitting segments on the connection, to allow time for segments from
>    the earlier connection incarnation to drain from the system."
> - how would the "source" know the MSL rather than use the Internet 
> default?
> - To me, this section raises many questions about whether this is best 
> current practice.