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Date:      Thu, 12 Feb 1998 07:33:51 -0600
From:      "Jeffrey J. Mountin" <mountin.man@mixcom.com>
To:        Jim Shankland <jas@flyingfox.com>
Cc:        freebsd-isp@FreeBSD.ORG
Subject:   Re: Fw: FreeBSD firewall questions
Message-ID:  <3.0.3.32.19980212073351.007362f0@198.137.186.100>
In-Reply-To: <199802120709.XAA03963@biggusdiskus.flyingfox.com>

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At 11:09 PM 2/11/98 -0800, Jim Shankland wrote:
>Woops.  Crap detector just went off.
>
>You should actually try this out; do your two hosts that get 10 Mb/s
>throughput on a point-to-point cable get 6 Mb/s throughput when those
>two hosts (only) are connected through a hub?  If so, throw the hub
>into the trashcan and get another.

Latency for a switch depends on if it does store/forward or cut and/or some adaptive method.

>You're right, though, that a hub is unnecessary to connect two hosts
>point-to-point.  And if the interface cards support it, you can run
>the point-to-point line in full-duplex; for that matter, with
>10/100 cards running $60 or less, at 100 Mb/s.  100 Mb hub and switch
>prices are dropping fast, but they're not yet down to a trivial level.

The Intel Pro100B can be had for about $45 + s/h and a Cisco 1912 with 8 - 10bT and 1 - 100bT run under $1100 and the 2808 with 8 - 10/100 ports is a bit more than $1600.  Not trivial, but their still dropping.

It might not be a switch, but the price is trivial for a plain 4 port 10/100 hub from D-Link for $89.


Jeff Mountin - Unix Systems TCP/IP networking
mountin.man@mixcom.com


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