[Asterisk-Users] DSL router with QOS

[Rusty Dekema]

Speaking from my own experience, I would say that "the point" is that when a
user has, for instance, a DSL line running at 3.0mbps down and 256kbps up,
it is very easy to saturate the outgoing bandwidth, resulting in queues of
up to 1-2 seconds for outgoing packets at the DSL modem.

The ADSL line that I use for my VoIP needs is somewhat faster than this,
clocking in at 768kbps upstream, but I nevertheless find it very beneficial
to send my VoIP packets to the "head of the queue" using a Linux bridge that
I have inserted into my network between my DSL CPE (bridge) and the rest of
my network.

-Rusty



On 11/10/05, Rod Bacon <rod.bacon at empoweredcomms.com.au> wrote:
>
> What's the point?
>
> You can prioritise as much as you like at your own end, but as soon as it
> leaves
> your premises and enters the 'net, all bets are off!
>
> Even the contention ratio of the DSL circuit (as provided by your ISP) can
> kill you.
>
> QOS is really only useful in a point-to-point scenario, or in a meshed
> network
> that honors QOS on all links.
>
> If you really want to experiment, grab an old PIII for $50 off e-bay, and
> setup
> a linux box as a router behind your DSL modem. You can play with QOS as
> much as
> you like then, without forking out $500.
>
>
> ==========================================
> Rod Bacon
> Empowered Communications
> Ground Floor, 102 York St. South Melbourne
> Victoria, Australia. 3205
> Phone: +613 99401600 Fax: +613 99401650
> FWD: 512237 ICQ: 5662270
> ==========================================
>
>
> Keith Schmidt wrote:
> > Any recommendations on an ADSL router with QOS for VOIP built in?
> > Anything sub $500 would be great.
> >
> > Thank you
> > Keith Schmidt
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