Dell Products Inc.

Kwangsuk Kim

Annie A Dang

Jaiwant Virk

Alexis Dacquay

Wanqun Bao

A network system for an expandable distributed core architecture ('DCA') includes multiple spine switches, multiple leaf switches coupled thereto, and a plurality of interconnections coupling each of the spine switches to each of the leaf switches. Servers, storage, and other system items and resources can be coupled to the leafs via downlinks and uplinks. Each of the plurality of spine switches includes at least one unused spine port that is reserved for a future expansion of the DCA in order to accommodate the addition of at least one other separate leaf switch to the at least one unused spine port. Additional ports can be unused and reserved for future expansion additions of more leafs and/or more spines. Also, a computing system assists in the design of the specific number and configuration of spines, leafs and interconnections based upon user inputs regarding current and future system needs.

Expandable distributed core architectures having reserved interconnect bandwidths

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.

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San Jose, CA, United States of America

Kwangsuk Kim