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Date:      Tue, 27 Dec 2005 16:20:42 -0800 (PST)
From:      Ted Mittelstaedt <tedm@toybox.placo.com>
To:        danial_thom@yahoo.com, Danial Thom <danial_thom@yahoo.com>
Cc:        freebsd-questions@freebsd.org, "Loren M. Lang" <lorenl@alzatex.com>, "Winelfred G. Pasamba" <winelfredpasamba@gmail.com>, Ted Mittelstaedt <tedm@toybox.placo.com>, Yance Kowara <yance_kowara@yahoo.com>
Subject:   RE: FreeBSD router two DSL connections
Message-ID:  <1135729242.43b1da5a716a0@mail.freebsd-corp-net-guide.com>
In-Reply-To: <20051227160015.58584.qmail@web33308.mail.mud.yahoo.com>
References:  <20051227160015.58584.qmail@web33308.mail.mud.yahoo.com>

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Quoting Danial Thom <danial_thom@yahoo.com>:

> 
> 
> --- Ted Mittelstaedt <tedm@toybox.placo.com>
> wrote:
> 
> > 
> > Does it meet the test I already outlined?
> > 
> > Download the FreeBSD iso then upload it to a
> > remote server,
> > with both lines connected.  Time it.
> > 
> > Disconnect 1 line, then repeat the test.  If
> > the time to
> > download and upload when both DSL lines are
> > connected is
> > half the time it takes when 1 DSL line is
> > connected, then
> > your load-balancing.
> > 
> > If not, then you are not - although if it makes
> > you feel
> > like you haven't wasted your money claim your
> > "per session load balancing" then I suppose it
> > would be
> > uncharitable to make you feel bad by pointing
> > out that
> > this is purely a marketing term with no
> > networking
> > significance.
> > 
> > Oops.
> > 
> > Ted
> 
> 
> Ted seems incapable of grasping how things work,
> so I don't recommend wasting your time on
> anything he says.
> 
> As I stated, you cannot control how traffic comes
> into your network, so Ted's little download test
> is sure not to work.

Danial, once again your having trouble reading.  That
little test was for BOTH a download AND an upload test.

So, are you sure that the upload component of my little
test WILL work?  Perhaps we might have the poster I
responded to actually RUN the test and report the results?

 Traffic is routed to
> whichever ISP has the best route. You can only
> control how traffic goes OUT of your network. So
> load-balancing can only increase your upload
> speeds, not your download speeds. If you are
> hosting this is useful. If you have mostly
> download traffic, then its probably not worth is.
> 

Once again Danial you flee to arguing from theory and
not reality.  Until the second poster tries the test I
proposed and reports the results, you are really wasting
time.

As I said before, try the test.  If your download speed is
doubled with both DSL lines turned on, your load balancing.
If your upload speed is doubled with both DSL lines turned
on then your load balancing.

If your download speed is NOT doubled YET your upload speed
IS doubled with both DSL lines connected, then you are
also load balancing - after a fashion - although the reason
this works is that one of the ISP's is not properly ingress
filtering.  (assuming the DSL lines are connected to different
ISPs, presumably if they are connected to the same ISP you would
have already got multilink PPP or some other kind of real load
balancing setup with that ISP)  And if that is the case,
then the ISP that isn't ingress filtering, has a network full
of spoofed traffic from DDoS trojans and such, and it is unlikely
you would find their bandwidth that useable in the first place.
Additionally, since your making
use of the failure of one of the ISP's to properly ingress
filter, this sort of 'load balance' could disappear without
warning.  It is not something you would depend on for production
use and few ISP's are like this anymore.

In any case, I think chances that the second poster would
observed doubled upload speed with both lines connected, on
the file test I illustrated, are virtually zero.

Ted



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