Cisco Technology, Inc.

Ganga Sudharshini Devadas

Dennis Khoa Dang Nguyen

Kelvin Chan

Chih-Tsung Huang

Thomas James Edsall

Keerthi Manjunathan Swarnamanjunathan

Laura J Sharpless

Wei-Jen Huang

Yue J Yang

Dennis K D Nguyen

Techniques for identifying network congestion and adapting network performance to relieve the network congestion are described. As described, a network element such as a switch reports network congestion indicators such as link level control frames to a network controller. The network controller uses the network congestion indicators reported from the network elements to identify congestion points, data traffic, and data flows experiencing congestion at a network level. The network controller then determines optimized control parameters for the network in order to reduce or alleviate the congestion at the congestion points.

Congestion notification reporting for a responsive network

Buffer designs and write/read configurations for a buffer in a network device are provided. According to one aspect, a first portion of the packet is written into a first cell of a plurality of cells of a buffer in the network device. Each of the cells has a size that is less than a minimum size of packets received by the network device. The first portion of the packet can be read from the first cell while concurrently writing a second portion of the packet to a second cell.

Ultra low latency network buffer storage

Presented herein are techniques for detection and characterization of buffer occupancy of a buffer in a network device. Packets are received at a network device. The packets are stored in a buffer of the network device as they are processed by the network device. An occupancy level of the buffer is sampled at a sampling rate. Occupancy levels of the buffer over time are determined from the sampling, and traffic flow through the network device is characterized based on the occupancy levels.

Real time and high resolution buffer occupancy monitoring and recording

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Milpitas, CA, United States of America

Ganga Sudharshini Devadas