how to prioritize dscp packets entering my network

[Kaon_Thana]

I have an x450 extreme summit switch in my network with all types of traffic and no QoS policy setup. I have a server outside my network that sends traffic into my network. These packets come in with an IP header value/Diffserv = 51

How can I get my switch to prioritize the packets tagged with diffserv 51 to make sure I don't drop these packets?

[Kaon_Thana]

Followed your steps. I see that qp1 and qp8 are already created on the switch and have the same weight as my new qp5. Do i need to do anything with qp5's weight to make sure those packets get priority?

# show qosprofile
QP1 Weight = 1 Max Buffer Percent = 100
QP5 Weight = 1 Max Buffer Percent = 100
QP8 Weight = 1 Max Buffer Percent = 100

Thanks for your help so far!

[Kevin_Kim]

Here is a simple configuration example.

# create qosprofile qp5
# disable dot1p examination ports
# enable diffserv examination ports
# configure diffserv examination code-point 51 qosprofile qp5

For more details, you may want to visit the link below.

https://gtacknowledge.extremenetworks.com/articles/How_To/Configuring-QOS-profiles-and-verify-QOS-is...