Hello everyone, I am new to this forum and more experienced with audio than the network and would appreciate help in more advanced RouterOS 7 configuration.
Recently I purchased an RB5009Upr router to act as a DHCP server for 4 Unifi U6 Enterprise WAPs and an audio streaming server for conference translation service. The real-time audio traffic with speech (12 channels) goes form an audio mixer to the Audio Server and from it to the RB5009UPr and then over the Wi-Fi APs to the receiving app on the smartphones of the listeners.
The audio is streamed from the audio server which sends RTP packets via UDP to the app “over a range of dynamic ephemeral ports”. The mobile app listens to and communicates with the Audio Server via UDP over port 16384.
WAN of RB5009 is on eth1 and eth1-8 are in the bridge. Audio server eth1; WAPs eth1-6; mixer eth7; laptop eth8. IP addresses are: 192.168.144.0/21; Gateway IP is: 192.168.144.1; IP Pool is: 192.168.144.11-192.168.151.254
Beside the audio streaming traffic there is also Internet access provided (the plan is to limit it that the users can just check and send messages), and some small data to control the X32 audio mixer. The data load from the audio server is approximately 120 kbps per connected user (maximum 1000 users). It is recommended that the Server traffic only account for 20% of the total available bandwidth.
So far there were about 370 users connected at once and there was no problem. The voice audio was not drooping out and the delay was very minimal. But I would like to make sure that the traffic form the audio server has the highest priority in the local network and implement the audio server manufacture recommendation to enable Quality of Service (QoS). The specification says: By default, the LE Sever is set to the ToS/DS tag of 0xB8 (Critical, low delay, high throughput, and normal reliability). Other tags can be used depending on existing networking configurations.
I tried to configure the mangle rules and the queues giving the DSCP 46 priority but for some reason the filter rules did not show that my setup worked. Maybe there is a simpler way achieve the same? One more question. Will this router make at least 120 mbps with these firewall rules enabled? The plan is to add also rules to limit the hole internet traffic or just multimedia and some rules to allow only the audio engineers to have an access to the mixer form the smartphone controlling app.