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On Mon, Jun 09, 2003 at 11:43:40AM -0500, Keith G. Murphy wrote:
> I take minor issue with this blanket statement: a switch doesn't really
> gain you anything unless you're getting enough traffic for collisions,
> and takes away your ability to monitor everything (tcpdump, ethereal)
> that's going on from one point, given that you have two or more other
> computers having conversations of interest.
> 
> Please correct me if I'm wrong.

Switch also buys you full-duplex Ethernet.  And if you've got two
computers running half-duplex, you're getting enough traffic to cause
collisions.  Switches also allow each segment's bandwidth to go unused
instead of wasted by traffic not bound for that segment, as is the
case for the hub.  You get far better performance for about the same
price with a switch.  Why anybody would use a hub if they can at all
avoid it in this day and age is beyond me.

Packet sniffing tools are best suited for running on the same segment
as a router, or the router itself, anyway.

- -- 
 .''`.     Baloo Ursidae <[EMAIL PROTECTED]>
: :'  :    proud Debian admin and user
`. `'`
  `-  Debian - when you have better things to do than fix a system
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