Specifications

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High Performance Trading/Algo Speed with Wombat Design and Implementation Guide
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Appendix B—Building and Configuring Switches
Where do I put my leaf switches? Leaf switches typically reside in the same racks as hosts.
The number of leaf switches per rack and the placement of
each switch in the rack depends on the blocking factor of the
fabric. Refer to the Definitions, page 42 for details on
blocking/subscription.
Cisco provides two common rack configuration models.
The first model, for oversubscribed fabrics, uses two leaf
switches with up to 32 1U servers per rack (50 percent
blocking). The second model, for non-blocking fabrics, uses
three leaf switches with up to 36 1U servers per rack (see
Figure 18).
Figure 18 Leaf Switches in the 2 Common Rack
Configurations
Table 11 Planning Requirements (continued)
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