This article explains how to deal with the Minor alarm "QoS License(289) usage requires a license" in ptx10002-36qdd

You will observe the below alarm

Router> show chassis alarms

1 alarms currently active

Alarm time Class Description

2024-12-11 06:00:00 PST Minor QoS License(289) usage requires a license

Collect the below command output

>  show system license    

> show system license keys

Check with the accounts team, what kind of license Customer has purchased for the device. In this Meta case customer has purchased P2-Premium License, which covers all premium 1 feature + HQoS.

Why you are seeing the warning even after installing P2 category license :

The issue here is, today QoS license is not applicable to EVO PTX series(only for MX), hence the license ID (289) is not included in your key(Our Engineering examined the decoded key and verified the same) even though it is P2 category. In 23.4-R2-S1, due to a bug this license got enabled instead of HQoS license (applicable to EVO PTX with BX chip) and as we already mentioned, this is fixed and the changes are available from 23.4R2-S3 onwards.

The warning will not be seen once you upgrade to S3 or higher releases. We have also verified that HQoS license ID (326) is present In your key.

https://prsearch.juniper.net/problemreport/PR1832769