Qlogic QLogic Fibre Channel Switch Guía de instalación Pagina 49

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3 – Planning
Multiple Chassis Fabrics
59055-00 B 3-13
D
3.5.3.3
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. Using 16-port SANbox 5200
switches, the Multistage fabric shown in Figure 3-6 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 ports is no more than two chassis hops.
52 1Gbps/2Gbps Fibre Channel ports are available for devices.
Figure 3-6. Multistage Topology
Edge Switch
Edge Switch Edge Switch
Core Switch
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