Wireless QoS - DSCP and 802.11e WMM-AC on MR ?

[thomasthomsen]

So ... on the Classic Cisco solution you can set "metal" QoS policies, that, more or less, sets the max allowed AC for that SSID.

But what about Meraki MR / Catalyst AP in "Meraki persona" ?

The only information I can find is that the Meraki solution honours the DSCP marking of the packet, and puts it into one of the 4 AC's.

For example in this document : https://documentation.meraki.com/Architectures_and_Best_Practices/Cisco_Meraki_Best_Practice_Design/...

(Scroll down until you get to PCP, DSCP, and WMM mapping).

This is all well and fine, but what I do not know, or what is not mentioned anywhere, is if it always does this ?

If, for example, I do not set any traffic shaping rules on the SSID, will it still honour DSCP marking, and put those packets into the right AC's ?

What I "fear", and it is for now an unfounded fear, because I do not know, is that if I do not set any shaping rule, it will not and set everything to "BE_AC".

And then also an interesting question, is it possible to set a "max" AC on an SSID like on a Cisco Classic solution ?

Do anyone know ?

Thanks
Thomas

PS: Yes ... I could just go "do a test" ... but I feel like Im missing this from the documentation.

[alemabrahao]

Meraki MR and Catalyst APs in do indeed honor DSCP markings and map them to the appropriate Access Categories as per the PCP, DSCP, and WMM mapping. This behavior is consistent and does not require additional traffic shaping rules to be set on the SSID for it to function.

https://documentation.meraki.com/MS/Other_Topics/QoS_%28Quality_of_Service%29

I know this document is from MS but the logic is the same.

If you do not set any traffic shaping rules on the SSID, the Meraki solution will still honor the DSCP markings and place packets into the correct ACs. Unlike the Classic Cisco solution, Meraki does not provide a direct way to set a maximum AC for an SSID.