Prerequisites
The control bridge can be a standalone unit or a stack (ring or linear).
Port extenders can be cascaded up to a depth of six. A ring topology of a PE chain is supported beginning with FastIron 08.0.50 and later.
All units must be booted with the same software image.
Only a FastIron 08.0.40 or later image is supported on 802.1BR (the CB runs the SWR08040.bin image, and the PE runs the SPR08040.bin image).
No licenses are required for SPX (802.1BR or Campus Fabric).