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1990-09-12
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65 lines
Number: A2CK080390U249
Subject: Turbo RX-Net v3.1 Driver Tests
Date: September 10, 1990
OS Version: 386
- - - - - - - - - - - - - - - - - - - - - - -
GENERAL
INFORMATION: Here is more information on the NetWare 386 v3.1 TRX-Net
driver with an 8 bit Arcnet card. Here are some test
results:
-------------------------------------------------------------
Under moderately light load:
8 Bit SMC PC130 | 16 Bit Thomas Conrad
Utilization: 25 percent | 10 percent
Buffers: 10 | 10
Received packets 205,000 | 205,0000
NO ECB's: none | none
other errors: none | none
-------------------------------------------------------------
Under Heavy load using 2 machines broadcasting with IPXLOAD
Utilization: 35 percent | 9 percent
buffers: 254 | 10
NO ECB's: 1800 | none
Rec. Packets 300,000 | 300,000
Orphaned Pack: 15,000 | 190
------------------------------------------------------------
As you can see, under heavy load the 8 bit card was not
capable of handling the traffic. This was also tested
using the old (not supported) NetWare 386 v3.0 RX-Net
driver and the results were similar.
We have had several customers using the 8 bit card and
having lots of problems. When they use the 16 bit
Arcnet card the problems disappear. An important result
is the server utilization of 35 percent compared to 9
percent. The difference of 290 percent!! Also, the NO
ECBs explain why customers are seeing problems.
COMMENTS: The 8 bit card is not capable of handling the heavier
load. The customers have an $8,000 operating system with
$10,000 in hardware for a high performance system. Why
use a cheap Arcnet card with such an incredible
investment? Use a 16 bit Arcnet board and the problems
will disappear.
The current NetWare 386 v3.1 TRX-Net driver has problems
with 8 bit Arcnet cards under heavy loads. The TRX-Net
driver seems to function fine with 16 bit cards. For now
use the NetWare 386 v3.0 RX-Net driver. The problem that
people are seeing with the TRX-Net driver is receive
buffers maxing out. The RX-Net driver you should use is
the one on NetWire, not the original with NetWare 386 v3.0.
The filename is RXNET.ZIP in Library 7.
(X) This information was verified in the lab.