Switch fabric end-to-end congestion avoidance mechanism

摘要

Aspects of a switch fabric end-to-end congestion avoidance mechanism are presented. Aspects of a system for end-to-end congestion avoidance in a switch fabric may include at least one circuit that enables reception of a congestion notification message that specifies a traffic flow identifier. The circuitry may enable increase or decrease of a current rate for transmission of data link layer (DLL) protocol data units (PDU) associated with the specified traffic flow identifier as a response to the reception of the congestion notification message.

主权项

1. A method for congestion avoidance, the method comprising:
receiving, using a network device, a congestion notification message having a request to modify a data transmission rate; and upon receiving the congestion notification message:
resetting a congestion notification timer,determining whether a data transmission rate modification wait time has elapsed,modifying the data transmission rate in response to determining that the data transmission rate modification wait time has elapsed, andmaintaining the data transmission rate in response to determining that the data transmission rate modification wait time has not elapsed.