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3 – Planning Multiple Chassis Fabrics
3.2.2
Common Topologies
This section describes three commonly used topologies:
Cascade
Mesh
Multistage®
3.2.2.1
Cascade Topology
A cascade topology describes a fabric in which the switches are connected in a linear fashion. If you connect the last switch back to the first switch, you create a
The cascade fabric shown in Figure
Each chassis link contributes up to 200 MB/s of bandwidth between chassis, 400 MB/s in full duplex. However, because of the sequential structure, that bandwidth will be shared by traffic between devices on other chassis.
Latency between any two ports is no more than three chassis hops.
48 Fibre Channel ports are available for devices.
Figure |