[SI-LIST] Re: Ethernet tools

Following are some of your options -

1. Hardware Tools - you would need source for generating traffic. The 2 most
commonly used boxes are from IXIA and Smartbits (SPIRENT). With these boxes,
you can

- generate/receive ethernet traffic at various line rates
- change the pattern of the packet
- set different IFG "Inter Frame Gap"
- display the statistics
- set a port to forced 10 half duplex/full duplex mode or to 100 hd/fd

2. If you want to use above traffic generator in your system, you would need
to modify your driver such that you can receive all the traffic that's being
sent by the box and you can display the statistics. Similarly, you would
need to have capability to send traffic to the box.

3. Usually #2 is hard to do - the easy way is to ask your ethernet PHY
vendor to provide you with the PHY evaluation board. Once you have that
board, you can connect it to either IXIA or Smartbits box and play with it.

4. For all of parametric/compliance testing, you would need all of the
standard lab tools and ethernet spec. All the PHY vendors usually have a DVT
report (they may provide it to customer or may not) that list their test
setup and procedure to do parametric testing.

5. You can also visit University of New Hampshire Interoperability Lab
website
http://www.iol.unh.edu/testsuites/index.html
They list all of the tests/procedures that they do for compliance and
interoperability tests.

regards,
Hazily
Broadcom Corp.

-----Original Message-----
From: si-list-bounce@xxxxxxxxxxxxx
[mailto:si-list-bounce@xxxxxxxxxxxxx]On Behalf Of Jan Vercammen
Sent: Thursday, September 19, 2002 5:05 AM
To: si-list@xxxxxxxxxxxxx
Subject: [SI-LIST] Ethernet tools



Hello SI-list,

I have a question about (design) tools for Ethernet twisted pair (TWP)
links.

I assume that could divide this into two parts: (1) protocal analysers and
(2) hardware tools.

(1) protocol analysers are instruments for gathering statistics and
analysis of the network or link
(2) hardware tools: vector network analysers (freq. domain) and
oscilloscopes-TDR (time domain)

My questions:
-1- if we would like to improve your understanding of high-speed twisted
pair Ethernet physical link
      design, what would you suggest to accomplish that:  methodology,
design and tools???
-2- what kind of protocol analysers are available for 100MBit TWP (and
above) Ethernet???
-3- what tools exist and/or do you recommend for time-domain and
frequency-domain analysis??
-4- Are there software packages for oscilloscopes that help you setup the
oscilloscope to measure
      the properties of Ethernet TWP signals??


Kind regards,

Jan Vercammen



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