Jim Grisham wrote:
>
> Subject: Re: Hubs/switches
> From: "Jim Grisham" <[EMAIL PROTECTED]>
> Date: Sat, 16 Sep 2000 10:55:38 -0500 (CDT)
>
> A autosensing hub has a built-in 2 port switch. Any 100Mbps ports are repeated
> together, as are the 10Mbps ports. The built in switch connects the 100Mb
> group to the 10Mb group.
>
> Jim
Which, by the way, creates an interesting problem when using a tool
such as EtherPeek to record Ethernet packets.
If EtherPeek is running on a CPU with a 10 MHz Ethernet connection,
it will see all packets going between 10 MHz connections, but will
*not* see any of the packets going from one 100 MHz to another 100 MHz
connection because in effect these have been switched to a separate
100 MHz "segment". Very baffling until one figures out what is
going on.
--
Garth Fletcher, President, JacqCAD International
288 Marcel Road, Mason, NH 03048-4704
(603) 878-4749 fax: (603) 878-0547
JacqCAD MASTER website: www.JacqCAD.com
>
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