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3 – Planning
Multiple Chassis Fabrics
59021-07 A 3-5
D
3.2.2.3
Multistage Topology
A Multistage topology describes a fabric in which two or more edge switches
connect to one or more core switches. Each additional core switch increases the
bandwidth to each edge switch by 200 MB/s. The Multistage fabric shown in
Figure 3-3 has the following characteristics:
Each link contributes up to 200 MB/s 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 device ports is three chassis hops.
52 Fibre Channel ports are available for devices
Figure 3-3. Multistage Topology
Core Switch
Edge Switch
Edge Switch
Edge Switch