[Asterisk-Users] Cisco 7940/7960 QOS?

[Rich Adamson]

> If I relay through my Cisco 7940/7960, does it do QOS, even with a dumb 
> switch?
> 
> I know you can set quality/qos but only if you have a layer2/layer3 
> switch that supports the tagging. A simple little linksys 5 port switch 
> wouldn't know about QOS, it'd give everybody equal priority. If a 
> computer plugged into the phone, and the phone into the dumb 5 port 
> switch and then to the internet, and the computer started uploading a 
> 3mb file, if the end user picked up the receiver and placed a call, 
> would that upload slow down in order to give the phone perfect call quality?

In very general terms for a small network such as yours, QoS at the 
switch level will no significant impact as the bandwidth is more then
sufficient to handle the traffic.

QoS 'can' have an impact on any box (eg, DSL modem, Router) where the
bandwidth is somewhat limited. However, to be usefull, the DSL modem
or router at your end _and_ your ISP's location would have to be
configured to support QoS.

As far as other Internet links, contrary to popular belier there are
some providers that have implemented QoS in their facilities. Our
company has helped several, and others are asking about it. Its
probably not all that popular yet, but at least moving in a positive
direction.

Rich