Splitting of physical line possible for 100Mbit/s

Splitting of physical line possible for 100Mbit/s
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Subject Author Date
Splitting of physical line possible for 100Mbit/s Michael P. 10-22-2006
Posted by Michael P. on October 22, 2006, 6:58 pm
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For 100Mbit/s Ethernet using electrical physical layers, can I split
the physical line (after the driver and the RJ45) and observe what has
been sent to another receiver using another physical driver and
ethernet chip? Would I run into physical issues or limitations like
changing the impedance of the lines to level beyond what is tolerated
as the pure normal point-to-point Ethernet connection would be lost?
Any other issues I may encounter?

Thanks for any help, info or pointers. If the description is too
informal, please let me know?

+Michael


home networking made easy, greater protection, less stress, introducing nm 5.0, 728x90
Posted by Walter Roberson on October 22, 2006, 7:06 pm
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>For 100Mbit/s Ethernet using electrical physical layers, can I split
>the physical line (after the driver and the RJ45) and observe what has
>been sent to another receiver using another physical driver and
>ethernet chip?

Yes.

>Thanks for any help, info or pointers. If the description is too
>informal, please let me know?

http://openbsd.secure.lv/tap/
snort.org/docs

Posted by on November 13, 2006, 3:12 pm
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Walter Roberson wrote:
> >For 100Mbit/s Ethernet using electrical physical layers, can I split
> >the physical line (after the driver and the RJ45) and observe what has
> >been sent to another receiver using another physical driver and
> >ethernet chip?
>
> Yes.
>
> >Thanks for any help, info or pointers. If the description is too
> >informal, please let me know?
>
> http://openbsd.secure.lv/tap/
> snort.org/docs

Now that is neat. New one on me.

Maybe I'll be having a wee chat with
our wireman.


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other useful resources:
The Federal Communications Commission (FCC)
Telecommunications Industry Association
Electronic and Software Security Products and Services
International Telecommunication Union

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