[K12OSN] OT: Using multiple DSL connections

Peter Hartmann ascensiontech at gmail.com
Thu Jan 31 14:03:24 UTC 2008

>They have Vonage phones, which according to my
> reading, each require about 90K of bandwidth.

In the web interface you can choose the lowest quality codec which
uses about 30K.  It sounds fine.   NOT that I recommend this service
to anyone ever.


On Jan 31, 2008 9:00 AM, Peter Scheie <peter at scheie.homedns.org> wrote:
> I have a client site where we've installed K12LTSP-5EL with a single gig NIC,
> connected to a switch (which in turn has another switch daisy chained off it via
> gigabit connection).  The clients all have 100Mb connections.  The clients are a
> mix of thins, Windows, and Macs.  They have Vonage phones, which according to my
> reading, each require about 90K of bandwidth.  I think they have 4-6 such phones
> now and anticipate adding more, although I don't know what the upper limit is yet.
> Because of the bandwidth requirements of the Vonage phones, and anticipated
> growth in the number of phones, they have installed two DSL lines.  I have not
> had a chance to test the lines to see what kind of bandwidth, up & down, they
> each provide.  As it stands right now, the LTSP server provides DHCP, but points
> to only one of the two DSL bridges as the default gateway.  IOW, at the moment,
> the second DSL line isn't being utilized.
> My question is whether anyone has any suggestions about how to
> utilize/share/combine the bandwidth of both DSL lines so that all computers and
> all phones can make use of either/both lines.  I could put the phones onto a
> separate physical network and confine phones to one DSL line and the computers
> to the other, but that seems inefficient and inflexible, and it means they will
> have to make sure they pay attention to which network they plug into (which they
> won't understand and therefore will do incorrectly).  Depending on the time of
> day, computer traffic will decline as phone traffic increases, and vice-versa,
> although the nature of their respective traffic patterns is different (i.e.,
> computer traffic tends to be bursty).  What I'd really like is to setup a
> dedicated linux box to act as the gateway for the network, put three NICs in it,
> one for the internal network and one for each DSL line, and have it load
> balance/round robin the traffic between the DSL lines.  Any suggestions?
> Peter
> _______________________________________________
> K12OSN mailing list
> K12OSN at redhat.com
> https://www.redhat.com/mailman/listinfo/k12osn
> For more info see <http://www.k12os.org>

More information about the K12OSN mailing list