- The WLAN controllers are clustered together for redundancy and resiliency. As such, the cluster can only be formed between WLAN controllers of like model. For example, a WM3600 (RFS6000) can only be clustered with another WM3600 (RFS6000), not a WM3700 (RFS7000) or WM3400 (RFS4000).
- It is not possible to mix a cluster with different models.
- It is not possible to have a cluster between a standard SKU (NX-5500-100R0-WR) and an EXPRESS SKU (NX-5500E-100R0-WR)