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Re: [colorforth] End-to-End Internet Packet Dynamics


Nicely written and informative report - Thanks from a lurker.  JaP

----- Original Message ----- 
From: "Samuel A. Falvo II" <kc5tja@xxxxxxxx>
To: <colorforth@xxxxxxxxxxxxxxxxxx>
Sent: Wednesday, April 28, 2004 12:39 AM
Subject: Re: [colorforth] End-to-End Internet Packet Dynamics


> On Tuesday 27 April 2004 10:22 pm, Mark Slicker wrote:
> > I question why they didn't use a data rate for flow control. Also all
> 
> Because data rate isn't flow control, in the sense of achieving a 
> reliable link.  At best, it's flow throttling and bandwidth control.  
> Sending data slower does not guarantee a reliable delivery of a packet.
> 
> > the ACKs returning to the server seems wasteful, especially in
> 
> Wasteful, but necessary, due to the liberty that IP gives underlying 
> network technologies to not use forward error correction bits.  If 
> underlying technologies employs ECC, then this would be less of an, 
> though certainly not a non-existant, issue.  For more information on 
> this, see Phil Karn's documentation 
> (http://www.ka9q.net/papers/newlinkpaper.ps.gz) for more details on what 
> would be necessary to ameliorate the work-arounds that TCP implements to 
> make up for the underlying protocol's lack of integrated support for 
> reliability.  Note the paper is in the context of an amateur radio 
> application, but the information presented is universal regardless of 
> user domain.
> 
> --
> Samuel A. Falvo II
> 
> 
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