Switching Clos network universal element

摘要

A switching Clos network universal element that can dynamically change its role is disclosed. The universal element contains a matrix of VCSELs and a matrix of photodiodes on top of an electro-optical chip. The matrix of VCSELs sends data via a first set of optical links, and the matrix of photodiodes receives data a second set of optical links. The universal element also receives and sends data through electronic links. The universal element can function as an expander, aggregator or transitive switch in a folded Clos network. As an expander or an aggregator, the universal element uses its optical links as ingress links and its electronic links as egress links. Using this universal element, a network can be constructed without separate switching elements. Multiple universal elements can be positioned on a PCB, and the multiple universal elements can function as one switch.

主权项

1. A system for providing switching between network elements comprising:
a printed circuit board (PCB); a first electro-optical chip and a second electro-optical chip positioned on the PCB; a first matrix of photodiodes and a first matrix of VCSELs on the first electro-optical chip; a second matrix of photodiodes and a second matrix of VCSELs on the second electro-optical chip; a plurality of electronic links coupling the first electro-optical chip with the second electro-optical chip; a first plurality of optical links coupling the first matrix of photodiodes with the second matrix of VCSELs; and a second plurality of optical links coupling the second matrix of photodiodes with the first matrix of VCSELs; wherein the first matrix of photodiodes is configured also to receive optical data via a third plurality of optical links; wherein the second matrix of photodiodes is configured also to receive optical data via a fourth plurality of optical links; wherein the first matrix of VCSELs is configured also to transmit optical data via a fifth plurality of optical links; wherein the second matrix of VCSELs is configured also to transmit optical data via a sixth plurality of optical links; and wherein the number of optical links in the first plurality of optical links plus the number of electronic links is equal to the number of optical links in the third plurality of optical links.