QoS on Catalyst 3850-24XS-E

[roger perkin]

I am currently using 2 x Catalyst 3850-24XS-E switches to provide 2 x 10G interfaces for a pair of 8510 wireless controllers.

Which are then running 2 x 8G portchannels to 2 x 6509 cores

The reason is there is no 10G connectivity in the core.

My question is what QoS if any should I be configuring on this switch? 

I just want it to be a seamless conduit for traffic but just thinking if I should setup some queueing?

Thanks

Roger

[Reza Sharifi]

If everything is working as expected and you don't have any congestion, packet drops, latency bandwidth issue, etc.. there is no need for QOS.

That is just my opinion.

HTH

[Carlos Villagran]

Hi!

As Reza just said, as long as no oversuscription exist in the network or you are not using real-time/delay sensitive traffic there is no need for applying QoS.

Hope it helps, best regards!
JC

[paul driver]

Hello

Just like to add, Be careful when enabling qos on a switch, On certain models, The interface bandwidth can be possibly reduced by SRR ingress/egress queuing

Which I would say would drastically reduce your traffic utilization

res
Paul..

[szigeti]

Hi Roger

Our Cisco Validated Design queuing configs for this platform is here: https://www.ciscolive.com/online/connect/sessionDetail.ww?SESSION_ID=89114&backBtn=true

(slides 62-65)

Cheers! -tim