Installation guide

Chapter 14: VCStack Plus Overview
266 Section III: Building a Stack with VCStack Plus
Two Controller
Cards Per
Chassis
Figure 164 illustrates the wiring configuration when both switches have
two controller cards.
Figure 164. Cabling the Stacking Transceivers When Both Switches have
Two Controller Cards
Please note the following:
 The trunk has a bandwidth of 80Gbps when each chassis has two
controller cards.
 The switches can form the stack even if the transceivers are
cabled incorrectly such that the wires between transceivers
crossover (e.g., the transceiver in SFP+ slots 1 is connected to the