Cisco Technology, Inc.

Amazon Technologies, Inc.

Laura J Sharpless

Keerthi Manjunathan Swarnamanjunathan

Kelvin Chan

Dennis Khoa Dang Nguyen

Ganga Sudharshini Devadas

Ramanan Vaidyanathan

Ron Diamant

Sundeep Amirineni

Paul Gilbert Meyer

Patricio Kaplan

Christopher A Wildman

Akshay Balasubramanian

George Hilliard

An integrated circuit (IC) device may obtain machine instructions for a program that include a logging machine instruction to store metadata in a buffer. The IC device may execute the machine instructions for the program, and store the metadata in the buffer upon executing the logging machine instruction. The logging machine instruction may be generated by compiling code for storing the metadata into a single machine instruction. The metadata may include an instruction pointer maintained by the IC device, and a timestamp indicating a time of execution of the logging machine instruction.

Low overhead logging

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

The subject disclosure relates to systems and methods for improving multicast traffic flows in a computer network. In some aspects, a method of the technology includes steps for receiving multicast traffic statistics from each of a plurality of switches in a computer network, aggregating the multicast traffic statistics into a time-series database, and identifying a low-performing multicast flow based on the time-series database. In some aspects, the method can include steps for automatically reconfiguring the computer network to improve the low-performing multicast flow. Systems and machine readable media are also provided.

Detecting and resolving multicast traffic performance issues

Techniques for implementing a dynamically resizable memory region for alternative use in a memory are described. The techniques may include using two concurrent address maps corresponding to two address ranges for a memory represented as an array of memory blocks. The first address range can be mapped to the memory with starting addresses of the memory blocks incrementing sequentially along each row. The second address range can be mapped to the memory with starting addresses of the memory blocks incrementing sequentially along each column. When an access request is received having a target address belonging to the first address range, the target address is provided as the memory address to access the memory. When an access request having a target address belonging to the second address range, the target address is translated by address translation logic into a memory address to access the memory.

Resizable scratchpad memory

A network device receives data packets and derives a key from headers in the packets. A search engine in the device searches, or performs a table lookup, for information based on the key and multiple programmable masks. The search engine includes a hash based search engine that comprises multiple mask modules each to mask an input key with a respective programmable mask, to produce multiple masked keys. The search engine also includes an array of hash modules each corresponding to a respective one of the masked keys and including a hash table. Each of the hash modules searches its hash table for a data value based on a hash of the corresponding masked key, and outputs a found data value, if any, resulting from the search. A selector selects among the found data values and output the selected data value.

Label masked addressable memory

Growing community of inventors

Sunnyvale, CA, United States of America

Laura J Sharpless