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Wireless QoS marking Issue

dands2006
Level 1
Level 1

I am in the process of implementing a Pilot Wireless QoS on a 2500 series(8.2) WLC with  AIR-LAP1142N APs.

My issue is upstream traffic with DSCP 46 gets place in the video queue and not voice.

The are a few suggestions to change to DSCP marking to 48, which will take care of this issue. However, its recommended to mark voice with 46.

1 Accepted Solution

Accepted Solutions

If this is in the wireless frame then it is client device which set UP value initially. WLC/AP simply use that UP value to derive the CAPWAP DSCP value. see below diagram for clarity.

In future Cisco is looking to use original packet DSCP value to derive these rather UP value. Refer this IETF draft from Cisco to better understand 

NB: Above diagrams taken from BRKSDN-2046 - SDN Enable QoS deep dive session by Tim Szigeti, Highly recommend to watch this

HTH

Rasika

*** Pls rate all useful responses ***

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2 Replies 2

If this is in the wireless frame then it is client device which set UP value initially. WLC/AP simply use that UP value to derive the CAPWAP DSCP value. see below diagram for clarity.

In future Cisco is looking to use original packet DSCP value to derive these rather UP value. Refer this IETF draft from Cisco to better understand 

NB: Above diagrams taken from BRKSDN-2046 - SDN Enable QoS deep dive session by Tim Szigeti, Highly recommend to watch this

HTH

Rasika

*** Pls rate all useful responses ***

Thanks for your input.

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