How to configure RouterOS (I have RB960, RB962) to make use of priority-only tagged Ethernet frames? Just to transport priority information, when IP DSCP/ToS cannot be used. It is common practice to use VLAN-ID 0 for this, although not specified in the 802.* standards as I recall.
Is is possible? If yes, please give example how to configure.
Hey
On brdige port level you can set VLAN frame type to “admit only untagged and priority tagged”.
Yes, I found this. But how are packets with VLAN-ID of 0 are processed then? It is not possible to set PVID or VLAN to “0”.
And how to send prority-only tagged frames with ROS?
Have a look at
set-priority action & ingress-priority property: https://wiki.mikrotik.com/wiki/Manual:Interface/Bridge#Properties_2
and
https://wiki.mikrotik.com/wiki/Manual:WMM#How_to_set_priority
Hey Sebastia is it just me or is that a new avatar… I mean, why post here when you could be driving LOL.
OK, in bridge filter: “0” is allowed for VLAN-ID. I didn’t know that. But please give me example configuration commands.
I simply want to have all Ethernet ports in one bridge. No VLAN’s, just one big broadcast domain. But all Ethernet frames prority tagged. No need to change packet priorities in router (I know how to do that). Router’s own IP address also without VLAN-ID (or VLAN-ID “0” however it is done in ROS).
@anav: driving it daily indeed, why do think I don’t post that much 
@muetsekoeln: not sure what you’re after, but it could be as simple as this
/interface bridge filter add action=set-priority new-priority=from-ingress
Why would you use VLAN-ID 0. I would not used that at the same time stay away from tagging VLAN-ID 1.
I have some devices in my LAN which ignore VLAN-tagged frames. With some luck they accept priority-only tagged frames. For checking I need to source such frames with my MT devices.
Parts of my home LAN are connected by two remote bridges (unmanaged). These have QoS built it, but based on 802.1p only.
How to set up ROS to send priority-only tagged frames? Is it really suffient to set packet priorities in the firewall?