There is a very useful OID in the new MIB - rfOutDiscardRate - which seems like it would be a perfect one to graph using MRTG to track which APs are most heavily loaded and need to either be load-balanced or upgraded to Medusa.
Unfortunately, it doesn't work - I run snmpget for this OID (.1.3.6.1.4.1.161.19.3.1.7.35.0) against a variety of PMP450 APs running 15.2 firmware, and in most cases, I get a response of "No Such Instance currently exists at this OID". A few give me a "0" - which is a reasonable value in the morning, but if I can't run it on all of them, it's not as much help.
What's the story?
