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Date:      Fri, 14 May 1999 21:44:27 -0500
From:      Dan Nelson <dnelson@emsphone.com>
To:        Greg Lehey <grog@lemis.com>
Cc:        David Scheidt <dscheidt@enteract.com>, "Mark J. Taylor" <mtaylor@cybernet.com>, Daniel Eischen <eischen@vigrid.com>, freebsd-hackers@FreeBSD.ORG
Subject:   Re: ifconfig: changing mac address
Message-ID:  <19990514214427.A28206@dan.emsphone.com>
In-Reply-To: <19990515115050.L89091@freebie.lemis.com>; from "Greg Lehey" on Sat May 15 11:50:50 GMT 1999
References:  <19990515111348.K89091@freebie.lemis.com> <Pine.NEB.3.96.990514205334.75011B-100000@shell-1.enteract.com> <19990514211533.A27872@dan.emsphone.com> <19990515115050.L89091@freebie.lemis.com>

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In the last episode (May 15), Greg Lehey said:
> > And the next step would be to make the kernel realize that two cards
> > ifconfig'd with the same MAC address are meant to be bonded together as
> > one route (lots of switches support this).  I have some machines that
> > I'd love to be able to get 20MB/sec bandwidth between transparently.
> 
> I think you need to reconsider that idea.  How are you going to double
> the bandwidth of the wire?

Two wires :)

Drop two Intel EtherExpress 10/100 NICs into a Netware box, load the
Intel failover/bonding .NLM, plug the NICs into adjacent ports on a
compatible switch (we use BayStacks), configure the switch to bond
those two ports together, and you instantly double your bandwidth.  If
a card fails, all traffic simply routes to the other card.  I've only
been able to max out both cards once (according to my mrtg graph), but
it does work.

It shouldn't be strictly limited to EtherExpress cards though.  The
general idea should work no matter what cards you have.

	-Dan


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