I would like to configure the Extreme Switches (x440-G2, with version 22.4) to sending sflow/netflow data direct to the Extreme Analytics. I heard this is now possible without having a flowcollector enginge like PV FC-180 installed. Is this true? Because I couldn't find any referenced documentation to this. Thank you very much for your feedback.
Telemetry + Policy should leave you with 1 slice free.
You could try disabling diffserv examination and dot1p examination and turn off port qos (config port qosprofile none). If all else fails, you can reduce policy to just L2 rules via: