[Asterisk-Users] QOS

[Rich Adamson]

Nick,

> Apologies as not really an Asterisk question - QOS. I have been told to
> implement VOIP correctly you need QOS implemented across the network as
> a whole. What network switches support this?

That is a very safe statement to make.

In the real corporate world, QoS may not always be required and depends
100% on the bandwidth actually available (not in use) between any two points.

Also, I've seen a large number of corporations that do not manage their
network assets very well, and any layer-2 box that is dropping large
numbers of packets will cause less then acceptable voice quality regardless
of whether QoS is implemented.

As far as which switches support QoS... the majority of current switches 
that sell for more then about US $1,000 include some QoS functionality. 
The vendor's switch spec's will usually note whether its supported; if its
not specifically mentioned, its probably not supported.