1. A method comprising: at a mesh access point (AP) in a wireless mesh network including a plurality of mesh access points and a root AP forming a root of a tree of the mesh APs in which the mesh APs are linked back to the root AP through parent-child relationships over wireless backhaul links, the root AP having a connection to a wired network: providing access to the mesh network via wireless connections to wireless clients in one or more wireless local area networks (WLANs) served by the mesh AP; storing mappings between the one or more WLANs served by the mesh AP and one or more virtual local area networks (VLANs) configured on the wired network and to which the WLANs are assigned; receiving, from a parent access point of the mesh AP, mappings between the VLANs configured on the wired network and WLANs served by the mesh AP as known by the root AP; and if the stored mappings and the received mappings differ, updating the stored mappings with the received mappings that differ from the stored mappings so that the stored mappings reflect the mappings known by the root AP.