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Avoiding deadlock in a distributed photonic control architecture

IP.com Disclosure Number: IPCOM000258785D
Publication Date: 2019-Jun-13
Document File: 6 page(s) / 475K

Publishing Venue

The IP.com Prior Art Database


The present disclosure relates to systems and methods for avoiding deadlock in a distributed photonic control architecture. Deadlock is where controllers are stuck in a stall condition in a photonic network. The conventional approach includes complex techniques and heuristics to detect and break a deadlock. The present disclosure provides an approach to avoid the deadlock condition altogether. Specifically, the present disclosure includes notifying both channel dependent "upstream" and "downstream" controllers or control domains with a unique identifier, so that all controllers know each other's status, as well as, the fact that every controller uses the same prioritization criteria to decide who is the winner.