ER605 QoS not working when setting DSCP to anything other than "Any"
I am trying to setup QoS for my VoIP phones. I setup a separate network (192.168.10.0/24 VLAN 10) and then configure an IP Group for that network called VoIP. I then create a class rule in QoS called Voice set it to class 1, assign it the VoIP group to it and set DSCP to "Any". I then assign Class 1 to 20% of the bandwidth, Class 2 to 5% Class 3 to 5% and Others is 70% by default. I only have the one class rule.
When connect my laptop to this network and do a speed test, I can see it limiting it to 20% of the available bandwidth, and can see in the routers admin utility that Class 1 shows activity during the speed test. All is good so far.
Now I want VoIP to have the highest priority, so I change the DSCP from "Any" to EF, which is gives VoIP the highest priority. As soon as I do this, everything goes south. Now when I run a speed test I can see that I am now using 70% of the available bandwidth and when looking at the QoS monitor it shows the traffic going out over the "Others" class. Upon further investigation, setting DSCP to any value other than Any will cause the traffic to go out over Others and not Class 1.
What am I doing wrong and how do I get my VoIP traffic to go out over Class1 with the highest priority and the correct bandwidth limit?
Help!!
Thanks,
John
@Vincent-TP Thank you for the reply. I have enclosed pictures of my configuration, but will explain it here as well. 2 Networks configured as follows:
Network/LAN: (see picture LAN Config.jpg)
Name VLAN IP Address Subnet Mask DHCP Server
LAN 1 192.168.0.1 255.255.255.0 Enabled
VoIP 10 192.168.10.1 255.255.255.0 Enabled
Network/VLAN: (see pictures VLAN.jpg and VLAN ports.jpg)
ID VLAN ID Name Ports Description
1 1 vlan1 2(untag) 5(untag) LAN1
2 10 vlan10 3(untag) 4(untag) VoIP
3 4096 vlan4096 1(untag) WAN
Preferences/IP Group/IP Group (see picture IPGroup.jpg)
ID Group Name Address Name Description
3 Data Data Computer Network
4 Voice_Group Voice Phone Network
Preferences/IP Group/IP Address (see picture IP Address.jpg)
ID Name IP Address Type IP Address Range IP Address/Mask Description
2 Data IP Address/Mask 192.168.0.0/24 192.168.0.0/24 Computer Network
3 Voice IP Address/Mask 192.168.10.0/24 192.168.10.0/24 Phone Network
Transmission/Quality of Service/Class Rule (see picture Class Rule Any. jpg)
Rule Qos Class Status Local Address Remote Address DSCP Service Type
1 Class 1 Enabled Voice_Group IPGROUP_ANY any all
Transmission/Quality of Service/Bandwidth Control (see picture bandwidth control.jpg)
Index Status Direction Inbound/Outbound Bandwidth Class 1 Class 2 Class 3 Others
WAN Enabled Both 350000Kbps/40000Kbps 5% 1% 1% 93%
My laptop is connected to Port 3 which is the VoIP network. It properly gets an IP address 192.168.10.100 from DHCP on the router (see picture IP Config.jpg). Notice that the Class Rule has DSCP set to "any".
Run a speed test and can see that my bandwidth is 18.10Mbps Down and 2.21Mbps Up and I can see from the WAN Online Statistics page (on the router) that the traffic is going out on Class 1 (see picture Success.jpg).
This works as expected, but I want my phone traffic to have the highest priority (EF). So all I did is go into the Class Rule (Transmission/Quality of Service/Class Rule) and change the DSCP setting from "any" to "EF" (see picture Class Rule EF.jpg).
I then rerun my speed test. Now get 330.62Mbps Down and 38.04Mbps Up, and can see from the WAN Online Statistics page (on the router) that the traffic is going out on Others (see picture Failure.jpg).
Setting DSCP to any setting other than "any" causes the traffic to go on the VoIP network to go out over Others class and not Class 1. This is a real problem for me and I am not sure what I did wrong in my configuration or how to correct this.
I surely need some help and guidance here. Thanks!!