Can ACs from H3C and ACs from different vendors roam quickly?

Can ACs from H3C and ACs from different vendors roam quickly?

No. At present, the implementation of the inter-AC roaming function requires the wireless controller to support our private IACTP protocol. The ACs linked by IACTP protocol form a roaming group, and inter-AC roaming requires the ACs initially connected by users to synchronize user information in the roaming domain through IACTP protocol before the terminal roaming.