[Asterisk-Users] QOS Device?

[rsenykoff at harrislogic.com]

what are you running on Fedora Core to shape the traffic?

Traffic Control "tc" is included in the 2.4 kernel and forward. See 
http://lartc.org/.  Basically, I have a script that is setup as a service 
to set up the bridge and the traffic control queues.

let's say that you have VPN site to site tunnels from the FW behind the 
QoS machines towards a branch office and that some of the traffic in the 
Tunnel has higher priority then other traffic. The QoS device sees it all 
as encrypted traffic and can't help there. What would you suggest? 

If you want to shape VPN traffic, then you would need to place the QoS 
behind the VPN box. So long as you can route _all_ of your WAN traffic 
through QoS, it will be effective. Our VPN traffic is all considered 
'bulk' traffic so it isn't a concern of our setup. Encrypted traffic is 
still a pain though. With Citrix for example, all of our users are hitting 
the Metaframe server which has all traffic encrypted with SSL all the way 
back to the client. So... I'm unable to separate out Citrix printer 
traffic from interactive traffic. I just have to look at source / 
destination (IP of our colocation facility) to determine priority. We were 
able to come up with kind of a workaround though. We put in a print server 
at colo instead of printing directly from the clients. So this way the 
print server connects over the VPN to send a print job to a printer. That 
print job then becomes bulk traffic. Pretty neat trick IMO. ;)
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