Methods, systems, and computer readable media for analyzing data center congestion control

A system for analyzing data center congestion control, the system comprising:

• at least one processor and a memory;
• a packet capture module executed by the at least one processor for capturing packets traversing network switches in a data center configured with data center quantized congestion notification (DCQCN) parameters to regulate congestion in the data center;
• a congestion signal extractor executed by the at least one processor for generating, from the captured packets, a congestion notification packet (CNP) profile for the data center and a visualization of real traffic rates in the data center;
• and
• a DCQCN performance predictor executed by the at least one processor for receiving, as input, the DCQCN parameters and the CNP profile, simulating congestion control of the data center and generating, as output, a visualization of simulated ideal traffic rates in the data center given the CNP profile and the DCQCN parameters.

A non-transitory computer readable medium having stored thereon executable instructions that when executed by a processor of a computer control the computer to perform steps comprising:

• capturing packets traversing network switches in a data center configured with data center quantized congestion notification (DCQCN) parameters to regulate congestion in the data center;
• generating, from the captured packets, a congestion notification packet (CNP) profile for the data center and a visualization of real traffic rates in the data center;
• configuring a DCQCN performance predictor with the DCQCN parameters and providing the CNP profile as input to the DCQCN performance predictor;
• and
• simulating, by the DCQCN performance predictor, congestion control of the data center and generating, as output, a visualization of simulated ideal traffic rates in the data center given the CNP profile and the DCQCN parameters.