Re: another issue with error recovery...

[julian_satran@il.ibm.com]

As far as I know that is a recognized issue in the TCP world.  Let's hope
it will we fixed.

Julo

Matt Wakeley <matt_wakeley@agilent.com> on 26/06/2000 21:03:43

Please respond to Matt Wakeley <matt_wakeley@agilent.com>

To:   SCSI-TCP <scsi-tcp@external.cisco.com>
cc:    (bcc: Julian Satran/Haifa/IBM)
Subject:  another issue with error recovery...




Here is another issue that may affect error recovery... Any comments on
this?

-Matt

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From: "Eric A. Hall" <ehall@ehsco.com>
Newsgroups: comp.protocols.tcp-ip
Subject: Re: Sequence number of TCP.
Date: 14 Jun 2000 14:27:11 EDT
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> How well that happens today when one uses a gigabit interface without
> enabling the large window extensions I'm not really sure... sending
> data at roughly 900mbit/s is about 88 MB/s into a 4096 MB sequence
> space, or wrap in ~46 seconds if I've done my math correctly.

The theoretical wrap-time with Gigabit Ethernet is ~17 seconds. I
haven't done this math in a long time so don't ask to see my work :)
It's also a theoretical boundary and not a practical one. Yet. Terrabit
and Petabit networks will change this again. Giving a fast enough frame
rate it's probably going to get so that window wrap-around happens in
the millisecond range. This is only a few years away at best.

--
Eric A. Hall                                      http://www.ehsco.com/
Internet Core Protocols        http://www.oreilly.com/catalog/coreprot/