Dual Tunnel
You can configure Juniper Mist APs to tunnel traffic to two different Juniper Mist Edge Clusters that are geographically or L3 separated in the WLAN configuration page. This is the recommended architecture for customers migrating from legacy controller architecture that do anchor tunnel or site to site tunnels.
Figure 1: Architecture for Dual Tunnels
In case you cannot implement the architecture illustrated in Figure 1 due to the underlying network limitations, Juniper Mist Edges support Anchor Tunnels for Site to DMZ tunnels.