How QoS Setting affects Internet Network Speeds
Posted by on 03 February 2012 02:52 PM

Details from DrayTek

About the issue for WAN2,R&D said it's our design, the results are OK. The actual speed of the link will be 80% of the setting in Qos. For example, if you setup 4000/4000 in QoS and ISP who provides you with a 4000/4000, your actual speed will be about 3.2M,not 4M. Our design is for better Quality and throughput. So if you want to use 100% actual speed and you're sure your link is stably, you can setup Qos higher than ISP speed. Example, your ISP speed is 4000/4000, you can setup Qos as 5000/5000. 

 

About the issue for WAN1, the result is also correct.  QOS for WAN1 you can't setup, it shows the ISP speed, but the actual speed of the link still will be 80% of the Qos. So if Qos for WAN1 automatic setting is 1536/256, your actual speed will be about 1.2M/200K.(From your example, Qos off speed is 1.3M,so Qos on speed will be 1.3*80%=1.04M)Vigor2820 has a telnet command adsl txpct/rxpct for WAN1,if you want to setup 100% actual speed, you can setup 'adsl txpct 100%''adsl rxpct 100%'.Default setting is 80%.

This is with bandwidth set to the default 10000/10000

 

http://www.draycare.com.au/dfaq/image/Bandwidth_Managment/04/qos_13.JPG

 

This is with bandwidth set to 4000/4000

 

http://www.draycare.com.au/dfaq/image/Bandwidth_Managment/04/qos_14.JPG

 

This is with bandwidth set to 3200/3200

 

http://www.draycare.com.au/dfaq/image/Bandwidth_Managment/04/qos_15.JPG

 

This is with bandwidth set to 2000/2000

 

http://www.draycare.com.au/dfaq/image/Bandwidth_Managment/04/qos_16.JPG
(2 vote(s))
Helpful
Not helpful

Comments (0)