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Ethernet Impedance Question

T

Terry

Jan 1, 1970
0
I would like to log certain events taking place on my cable high-speed
(HAH!)internet connection. In particular, I want to log date/time to a
file when I lose the internet connection here, and again when it is
restored. The detection of the data stream should be pretty
straightforward, but I don't want to upset any chactaristics, nor
performance, in the process.

I will be using a dedicated machine in another building on our home
network for the software so tapping into the activity indicator on the
modem or router, both of which are in the home, wouldn't be practical.

So, does anybody out there have any specs on the impedance across the
pair in a Cat-5 cable?

TIA--
Terry--WB4FXD
Edenton, NC
 
V

Vladimir Vassilevsky

Jan 1, 1970
0
Terry said:
I would like to log certain events taking place on my cable high-speed
(HAH!)internet connection. In particular, I want to log date/time to a
file when I lose the internet connection here, and again when it is
restored.

Your router has the event log. It is all in there already.


Vladimir Vassilevsky
DSP and Mixed Signal Design Consultant
http://www.abvolt.com
 
G

Gordon S. Hlavenka

Jan 1, 1970
0
Terry said:
I would like to log certain events taking place on my cable high-speed
(HAH!)internet connection. In particular, I want to log date/time to a
file when I lose the internet connection here, and again when it is
restored.

I wrote a stupid little VB6 app that pings my ISP's DNS and logs the
results. It pings once per second for two minutes, then every minute
until there's a disconnect. When the connection comes back up it goes
back to ping/sec for two minutes. Dumps everything into a TXT file.

It's not pretty (for instance the DNS IP address is hard-coded) but it's
pretty straightforward.


There's prolly something on SourceForge that does the same thing only
better.
 
T

Terry

Jan 1, 1970
0
=>
=>I would like to log certain events taking place on my cable
high-speed
=>(HAH!)internet connection. In particular, I want to log date/time to
a
=>file when I lose the internet connection here, and again when it is
=>restored..........

Thanks to both of you! Can you tell I'm into the guts of things too
soon, and can't see the forest because of the trees?

Story of my life! Thanks again........
Terry--WB4FXD
Edenton, NC
 
T

Terry

Jan 1, 1970
0
On Wed, 24 Sep 2008 23:38:18 -0500, "Gordon S. Hlavenka"

=>I wrote a stupid little VB6 app that pings my ISP's DNS and logs the

=>results. It pings once per second for two minutes, then every
minute
=>until there's a disconnect.

Gordon--Would you be willing to share the code with me?

TIA--Terry
Terry--WB4FXD
Edenton, NC
 
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