12-10-2022 10:59 PM - edited 12-10-2022 11:00 PM
Hello,
I am new to QoS and requested to implement QoS to prioritise Zoom Meeting traffic. Below is the configuration I have prepared for. Can anyone verify if it is correct or corrections needed. Also Customer wants that the Zoom traffic must always prefer the bandwidth allocation to it, not only when the bandwidth is fully utilised.
class-map match-any AutoQos-4.0-Output-Voice
match dscp cs3
match ip dscp cs7
class-map match-any AutoQos-4.0-Output-Video
match dscp cs4
match dscp cs5
policy-map AutoQos-4.0-Output-Policy
class AutoQos-4.0-Output-Voice
bandwidth remaining percent 10
queue-buffers ratio 10
class AutoQos-4.0-Output-Video
bandwidth remaining percent 10
queue-buffers ratio 10
12-11-2022 02:16 AM - edited 12-11-2022 04:34 AM
Please share only meaningful and valid response
12-11-2022 08:55 AM
How did the OP QoS come into existence? I see AutoQoS, but is this what it generated, or was it manually modified?
Regardless, before you can have effective QoS, you need to know traffic attributes, like bandwidth consumption, drop tolerance, latency tolerance and jitter tolerance. You also need to know how your special traffic will be identified.
The only thing I know about "Zoom" traffic it's real-time video; which I know, generally, has little tolerance for drops, latency and jitter, but I don't know its bandwidth needs (especially in your case) or how to identify it (I'm sure I could find out, searching the Internet, but you should know; especially, and often the case, it might vary among those using it).
In general, real-time traffic, like VoIP and/or such video, is provided priority over all other traffic (somethings voice is given priority over video). Your posted QoS config, appears to NOT provide such priority for its Voice and/or Video classes.
Your QoS policy is "looking" for Voice ToS settings of DSCP CS3 or CS7 for Voice and DSCP CS4 or CS5 for Video. You'll need to find out whether your Zoom traffic is using these tags. (Also, whether anything else is using them, and if so, whether that's acceptable.)
"Also Customer wants that the Zoom traffic must always prefer the bandwidth allocation to it, not only when the bandwidth is fully utilised."
That requirement needs clarification. For example, if all the bandwidth isn't being used, how do your prioritize? (Possibly your customer doesn't understand bandwidth utilization [many don't].)
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