3 – Planning
Multiple Chassis Fabrics
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3.5.4.3
MultiStage Topology
 Each link contributes up to 425 MB of bandwidth between chassis. 
Competition for this bandwidth is less than that of a cascade topology, but 
greater than that of the mesh topology.
 Latency between any two ports is no more than two chassis hops.
 52 1/2/4-Gbps Fibre Channel ports are available for devices.
Figure 3-8.  Multistage Topology
       
Edge Switch
Edge Switch Edge Switch
Core Switch