Affected platforms: AX and AC platforms Affected versions: 5.7.0 and newer
Starting 5.7 firmware release the Backward Compatibility between ePMP4xxx APs (or Force45xx operating in AP role) and ePMP Force300s SMs is officially supported.
The Backward Compatibility feature is disabled by default and should be enabled on UI on APs for interconnection between 4th and 3rd ePMP generations.
We’ve been using it for awhile now… we have a 4500 8x8 with a mix of around 30ish AX and 10ish AC SM’s. Mixed performance seems to be decent, neither AX or AC clients have noticed the change, no one’s complained. The only slight issue is there’s still an AP reboot issue they’re trying to track down… seems to be triggered with higher numbers of SM’s when they connect/reconnect. It doesn’t happen often… maybe once every few days.