A. VSF is a core or aggregation layer stacking technology due to the high resiliency of sharing a single control plane.

B. The VSF feature is not compatible between AOS-CX and AOS platforms.

C. VSF and VSX are stacking option with the AOS-CX 8320. 8325. 8400. and 6400 models.

D. A VSF stack is allowed between an AOS 5400R and an AOS-CX 6400.

E. A VSF stack is allowed between an AOS-CX 6300M and 6300F switches.