If you setup a vSZ on your Vmware, you get two options of vSZ type.
1- vSZ Essentials
2- vSZ High-scale
Upon choosing one of them, further you get below options.
If you choose, vSZ-E, it supports only single interface for Control/Management/Cluster.
If you choose, vSZ-H, it supports single or three interface (Dedicated interface for Control, management and cluster plan).
If you see, still there is no provision for Data interface in vSZ, hence if you really want to tunnel the data to a data interface, you have to also install vSZ-Dataplane and then connect it to your vSZ controller.
Now vSZ controller will take care of APs control/Management and controller's cluster operations/traffic. vSZ-Dataplane will take care of data tunnels traffic.
vSZ controller and vSZ-Dataplane will create a SSH session with each other for control and management. APs will create two tunnels, one with vSZ for AP control/management and other with with vSZ-Dataplane for WLAN data traffic.
Refer this simple topology to understand.
You have to purchase license for vSZ-Dataplane instance but no licenses required to tunnel the APs.
vSZ-D is offered with 1G throughput capacity and you can purchase additional 10G throughput capacity license, if required.
vSZ-D also supports DHCP and NAT features but for that you have to buy additional licenses.
For more information, please refer the data sheet.https://webresources.ruckuswireless.com/pdf/datasheets/ds-virtual-smartzone-d.pdf
Hope this will help.
Syamantak Omer | Community moderator | Staff TSE | CWNA | CCNA | RASZA | RICXI | Follow me at https://linkedin.com/in/syamantak-omer-5949b6124