Hey Syd,
As a VoIP provider and a Business DSL provider, we installed a carrier
class wire speed traffic shaper (from RadWare) on our network between
our DSL and VoIP/Internet network.
By doing so, our customers don't have to do anything special on their
end other then using a cheap linksys OGV200 to shape the upload traffic.
We take care of the download traffic for our customer.
With this setup in place, all VoIP calls are connecting directly to our
VoIP network without a single packet drop and very little latency (about
5ms). This is assuming the DSL connection is decent and not more than
3-4KMs from the DSLAM.
The drawback is that non-VoIP traffic may be slowed down in order to
always have enough space for VoIP packets. All our current DSL customers
seem to enjoy the voip service on it and do not mind to slow down some
of their downloads.
This service is only available to businesses, but you may find other DSL
providers doing the same for residential customers.
Cheers.
Stephan Monette
Unlimitel Inc.
Tel.: 613-688-6212. x221
TF : 1-877-464-6638, x221
FAX : 613-482-1077
Syd Carter wrote:
I just peak around at the traffic graph in Monowall. I notice that
the current outbound rate drops when a voip call comes in. You would
expect it to rise however I believe that since the voip is set at
highest priority, that it throttles everything else back to make
room. Perhaps if I fully reserved bandwidth full-time then it would
behave differently. I would be interested in knowing what other
methods people are using?
Simon P. Ditner wrote:
Following up on all this traffic shaping / QoS business --
What tools are people using to quantitatively measure how well your
QoS / traffic shaping is actually performing?
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