[tcpm] 64-bit sequence numbers

[Jonathan Looney <[e-mail]>]

Hi all,

At the Seoul meeting, we saw two proposals for making TCP perform better on
high-speed networks: increasing the maximum window size to 2**31 bits and
increasing the precision of timestamps to the microsecond or nanosecond
level. As I said in the meeting at Seoul, the combination of these two
proposals led me to believe that we need to begin planning for 64-bit
sequence numbers.

Given that it takes years to rollout new TCP features (especially something
as fundamental as changing sequence numbers), it seems like it is time to
begin thinking about how we will do this.

I submitted the below I-D with a proposal for 64-bit sequence numbers. I'm
sure the proposal isn't perfect. The draft itself highlights some
challenges. I asked the chairs to allocate a few minutes in Chicago to
discuss this topic. Even if we decide to go in a different direction than
this draft, I think it is important that we begin to think about 64-bit
sequence numbers.

Jonathan

---------- Forwarded message ----------
From: <[e-mail]>
Date: Mon, Mar 13, 2017 at 7:32 PM
Subject: New Version Notification for draft-looney-tcpm-64-bit-seqnos-00.txt
To: Jonathan Looney <[e-mail]>



A new version of I-D, draft-looney-tcpm-64-bit-seqnos-00.txt
has been successfully submitted by Jonathan Looney and posted to the
IETF repository.

Name:           draft-looney-tcpm-64-bit-seqnos
Revision:       00
Title:          64-bit Sequence Numbers for TCP
Document date:  2017-03-13
Group:          Individual Submission
Pages:          17
URL:            https://www.ietf.org/internet-drafts/draft-looney-tcpm-64-
bit-seqnos-00.txt
Status:         https://datatracker.ietf.org/doc/draft-looney-tcpm-64-bit-
seqnos/
Htmlized:       https://tools.ietf.org/html/draft-looney-tcpm-64-bit-
seqnos-00


Abstract:
   This draft updates RFC 793 to allow the optional use of 64-bit
   sequence numbers.  It also updates other standards to support the
   extended sequence number space.




Please note that it may take a couple of minutes from the time of submission
until the htmlized version and diff are available at tools.ietf.org.

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