MLS to MCQ for Cisco 3850

[jvmanansala21]

Hi

seeking for your assistance on below matter.

right now we are on the process of replacing our Cisco 3750 to 3850 model, but we can't configure the MLS to C3850 model.

according to Cisco documents MLS is not available on Cisco 3850, only MCQ can be performed on this kind of switch.

I hope you could help us on how to translate below MLS to MCQ and apply it to each interface of switch.

MLS Command

mls qos srr-queue output cos-map queue 3 threshold 1  4

mls qos srr-queue output cos-map queue 4 threshold 1  3

mls qos srr-queue output dscp-map queue 3 threshold 1  34

mls qos srr-queue output dscp-map queue 4 threshold 1  24 26

mls qos

[Francesco Molino]

Hi

Take a look on this link from Cisco live session:

https://clnv.s3.amazonaws.com/2018/eur/pdf/BRKCRS-2501.pdf

You'll create class-maps with specifics dscp values to classify your traffic.

There's also a Cisco doc talking about qos migration from 3750 to 3850:

https://www.cisco.com/c/en/us/support/docs/switches/catalyst-3850-series-switches/118629-technote-qos-00.html

[jvmanansala21]

Hi Francisco,

Thank you, this is helpful to us to understand QoS on new Cisco iOS

[Francesco Molino]

Glad that helps.