Juniper Networks, Inc.

Hongsheng Ping

Xianzhi Li

Qingming Ma

Jean-Marc Frailong

David James Ofelt

Aibing Zhou

Wing Leong Poon

In general, the invention is directed to techniques for improving memory utilization in a priority queuing system of a network device. More specifically, a priority queue memory management system is described in which memory pages are assigned to the various priority queues in order to implement an efficient first in, first out (FIFO) functionality. The dynamic memory techniques described herein allow the multiple priority queues to share a common memory space. As a result, each priority queue does not require a pre-allocated amount of memory that matches the aggregate size of the packets that must be buffered by the queue.

Memory utilization in a priority queuing system of a network device

A network device includes a receiver component that generates flow control information. The network device also includes a transmitter component that receives a packet for forwarding to the receiver component, receives flow control data for the packet from the receiver component, and provides the packet and the flow control data for the packet to a fabric component. The fabric component performs a congestion management operation for the packet, and forwards the packet to the receiver component based on the flow control data and results of the congestion management operation.

Oversubscribed packet stream-based interconnect protocol

Growing community of inventors

San Jose, CA, United States of America

Hongsheng Ping