[105122] in North American Network Operators' Group

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Re: Best utilizing fat long pipes and large file transfer

daemon@ATHENA.MIT.EDU (Randy Bush)
Thu Jun 12 20:21:54 2008

Date: Fri, 13 Jun 2008 09:20:35 +0900
From: Randy Bush <randy@psg.com>
To: Karl Auerbach <karl@cavebear.com>
In-Reply-To: <4851BAC2.8060007@cavebear.com>
Cc: North American Network Operators Group <nanog@nanog.org>
Errors-To: nanog-bounces@nanog.org

Karl Auerbach wrote:
> Randy Bush wrote:
>> and for those of us who are addicted to simple rsync, or whatever over
>> ssh, you should be aware of the really bad openssh windowing issue.
> I was not aware of this.  Do you have a pointer to a description?

see the work by rapier and stevens at psc

    <http://www.psc.edu/networking/projects/hpn-ssh/>

this is why rsync starts off at a blazing pace and then takes a serious
dive.

randuy


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