SYSTEM AND METHOD FOR SYMMETRIC SWITCHING FABRICS

摘要

A system and method for a symmetric switching fabric includes a first switching tier that includes a plurality of leaf switches, a second switching tier that includes one or more spine switches, and a plurality of interlinks for coupling the leaf switches to the spine switches. Each of the leaf switches includes one or more first ports configured to couple each of the leaf switches to other network devices outside the switching fabric and one or more second ports for coupling each of the leaf switches to each of the spine switches. A ratio of a number of first ports and a number of second ports is selected based on an oversubscription ratio. For each pair of a first switch selected from the leaf switches and a second switch selected from the spine switches, a same number of first interlinks selected from the plurality of interlinks couple the first switch to the second switch.

主权项

1. An information handling system comprising:
a memory; and a processor configured to:
determine one or more characteristics of a switching fabric, including a number of downlinks and uplinks desired for the switching fabric;determine a number of first ports for each of a plurality of leaf switches on a first switching tier;determine a number of second ports for each of one or more spine switches in a second switching tier;determine a number of interlinks selected from a plurality of interlinks supported by each of the plurality of leaf switches and a number of downlinks and uplinks supported by each of the plurality of leaf switches, the plurality of interlinks for coupling the plurality of leaf switches to one or more spine switches;determine a number of leaf switches by dividing the number of downlinks and uplinks desired for the switching fabric by the number of downlinks and uplinks supported by each of the plurality of leaf switches and rounding up; anddetermine cabling for the plurality of interlinks so that each pair of a first switch selected from the plurality of leaf switches and a second switch selected from the one or more spine switches includes a same number of interlinks selected from the plurality of interlinks between them.