Patent ID: 9197570
Filing Date: 2015-11-24
Classification: H04L

Abstract:
1. A method for managing congestion of traffic in a packet switch, comprising the steps of: providing more than two different congestion levels at the switch for handling traffic associated with at least two different priorities, one being a Low priority traffic “L” and another being a High priority traffic “H”; for each traffic flow having a specific Destination and Priority (Dest-Prio), determining a current congestion level that matches a congestion control level selected from among said more than two a congestion control levels, and associating a different set of operations for handling each respective traffic flow, depending on its priority and its current congestion level, and for each traffic flow, performing operations that match the respective associated set of operations, and wherein a rate at which said operations are performed for each respective traffic flow increases when a higher congestion level is associated with that respective traffic flow, and wherein the more than two different congestion levels comprising: and wherein said levels of traffic flows congestions are used in generating respective Flow Control commands (FC CMDs) for regulating one or more traffic flows at a source of each given traffic flow.