I am beginning to get a lot of transmit discards, transmit errors, and receive discards. We have replaced optics and fiber. I have even cleared counters, but still they appear. Would this be a case of wireless access points when a user roams between access points and trying to reconnect, arp table issue, bad ios code, or what? Any information would help. I do have a case open with SW and Cisco.
The discards could be cause by traffic shaping or carious other configurations and I would imagine (though I am not sure) that the transfer from one AP to another could cause some errors. I would verify that you are see the errors/discards increment in the device and then Focus on the Cisco side of things since SW won't be able to help much with troubleshooting specific device issues.