My IPTV service is mostly working, but I experience picture freezing and sound skipping whenever there's other network traffic. A simple speed test is enough to trigger the problem.
To get the IPTV working initially, I created a virtual interface on my eth1 WAN port. My setup looks like this:
Both the MT-6000 and OpenWrt devices support VLAN tagging using bridge VLAN filtering. My ISP's IPTV service doesn't require a VLAN tag to function.
I believe creating a VLAN for my IPTV traffic, or possibly using QoS, could solve the issue by prioritising the UDP packets used for the IPTV broadcast. However, networking isn't my strong suit.
Could anyone advise on how to best address this problem, and whether VLAN tagging is necessary or beneficial in my situation? Thank you!
Is the whole path wired or is there some wireless connection?
Generally the bottleneck is at the wan interface, so QoS is more important than VLANs, which won't help you by just configuring them.
Thanks for the reply. It's all wired. There's basically single cable between lan3 port on my router and lan2 port on my access point. I think the virtual interface I created on the physical eth1 port of my router maybe complicates things a little. I'm not entirely sure it's necessary, but it works. I did try removing it and relying on just IGMP Snooping and igmpproxy, but that didn't seem to work!
These are anyway not going to help with latency in your case.
Check SQM packet and try to experiment with the bandwidth limits to find the one which allows the iptv to work when other needy applications try to take all the available bandwidth.