Hello all !

I have a Vigor 3300 V with latest firmware (2.5.9.0).
Behind this I have an Asterisk box and several clients with X-Lite.

I would like to setup QoS to secure the voip quality.
Here is what I did :

For Incoming and Outgoing classes I set :

1) Class Name : rtp
Bandwith : 90 %

2) Class Name : sip
Bandwith : 5 %

And for Incoming Class Filter I set :

1) no config for Source IP, Destination IP,
Service Type Status: Advanced
Protocol: TCP/UDP
Source Port: 10000 - 20000
Destination Port: 10000 - 20000
DiffServ CodePoint Status: Basic
DiffServ CodePoint Type: EF CLASS
Class: rtp-90%

2) no config for Source IP, Destination IP,
Service Type Status: Advanced
Protocol: TCP/UDP
Source Port: 5060 - 5060
Destination Port: 5060 - 5060
DiffServ CodePoint Status: Basic
DiffServ CodePoint Type: AF CLASS 3 (Low Drop)
Class: sip-5%

And for Outgoing Class Filter I set same as for Incoming.


I did test the voip quality by making a call and once the call established starting a heavy download, but the quality is not guaratied !

Thanks a lot for any feedback concerning this configuration and how to modify it in order to guaranty the quality of VOIP.

Regards,
Fabianus

The way you have the QoS setup is it's going to prioritize TCP/UDP packets on ports 10000-20000 that are DiffServ tagged EF class.

Most likely your packets are not tagged as DiffServ EF Class so you should disable that section of the rule, at which point the ACL will match the traffic you are trying to prioritize, and it will work.