Great Circle Associates Firewalls
(November 1994)

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Subject: IPX Protocol Overhead (FW: IPX, and packet flooding.)
From: "Glassey, Todd @ ITD Ma" <TGLASSEY @ MSM . EPRI . COM>
Date: 04 Nov 1994 08:24:08 PST
To: firewalls @ greatcircle . com
Comment: MEMO

OK, well, here is one solid negative for the IPX world... Are there are there
any real studies that compare the actual protocols and their respective
overheads... I would be real interested in this since I am in the process of
trying to kill of NOVELL from my entire site... (Gimmee back my bullets - Lynard
Skynard)   SO if you have any real numbers please send them to me... I will

tglassey @
 eprinet .
 epri .
Electric Power Research Institute
IT - Network Services
Palo Alto California
(415) 855-7973
From: SMTP.PAUL on Thu, Nov 3, 1994 8:44 PM
Subject: Re: IPX, and packet flooding.
To: "J. Adams" <jna @
 concorde .
 com>; Glassey, Todd @
 ITD Mail Center #2286
Cc: firewalls @
 GreatCircle .

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From: paul @
 hawksbill .
 sprintmrn .
 com (Paul Ferguson)
Message-Id: <9411032047 .
 AA28408 @
 hawksbill .
 sprintmrn .
Subject: Re: IPX, and packet flooding.
To: jna @
 concorde .
 com (J. Adams)
Date: Thu, 3 Nov 1994 15:47:25 -0500 (EST)
Cc: firewalls @
 GreatCircle .
In-Reply-To: <9411031813 .
 AA27490 @
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 concorde .
 com> from "J. Adams" at Nov 3,
94 01:13:27 pm
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> Speaking of IPX, IPX seems to transmit TONS of useless ack and frag
> packets, nearly all the time. Anyone have any idea what's behind this?
> Or is it just sloppy novell code? We
> always see a high network load on our PC segments, but the unix boxes
> which are obviously more powerful and doing more for our net (gopher,www,
> mail,etc...) work at much lower loads.
> -john

Its a protocol thing. IPX is a pig-dog, resource-sucking protocol.

IP is simply cleaner and doesn't rely on any silly service advertisements
for services.

Whats the difference betwen an apple and a grapefruit?

- paul

Paul Ferguson
US Sprint
Managed Network Engineering                        tel: 703.689.6828
Reston, Virginia  USA                         internet: paul @
 hawk .
 sprintmrn .

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