Path: utzoo!utgpu!news-server.csri.toronto.edu!rpi!zaphod.mps.ohio-state.edu!pacific.mps.ohio-state.edu!linac!att!pacbell.com!tandem!netcom!jbreeden
From: jbreeden@netcom.COM (John Breeden)
Newsgroups: comp.dcom.lans
Subject: Re: 10Base-T hubs
Message-ID: <1991Apr18.152834.859@netcom.COM>
Date: 18 Apr 91 15:28:34 GMT
References: <1991Apr15.214932.9635@jhereg.osa.com> <1991Apr16.182217.6151@netcom.COM> <1991Apr17.212748.7165@shl.com>
Distribution: usa
Organization: Netcom - Somewhere in the S.F. Bay Area
Lines: 25

In article <1991Apr17.212748.7165@shl.com> phil@shl.com (Phil Trubey) writes:
>In article <1991Apr16.182217.6151@netcom.COM> jbreeden@netcom.COM (John Breeden) writes:
>>But the most interesting feature is this - a frame sent to a specific
>>mac address only shows up at the port that mac address is attached to. All
>>other ports get the header with the data field blank! (filled with 1s & 0s)
>>- you can't capture other people's traffic! only your own! (they're doing the
>>filtering during the normal buffer copy in the repeater - so there is no
>>impact on delay - it's within 10baseT spec).
>>
>>So now I've got an ethernet that acts sorta' like SNA. Users can only
>>attach to a specific port and only traffic destined for that port appears.
>
>Nifty feature!  That should be worth something.  How long has AT&T been
>selling these hubs?  Are they their own, or are they reselling/OEMing?
>

Since the first of the year (they've showed it at Interop and Netword).
AT&T Makes it themselves.
-- 
 John Robert Breeden, 
    jbreeden@netcom.com, apple!netcom!jbreeden, ATTMAIL:!jbreeden
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