Juniper Networks, Inc.

Eric M Verwillow

Ramesh Padmanabhan

Dennis C Ferguson

Devereaux C Chen

Thomas Michael Skibo

Avanindra Godbole

Pradeep S Sindhu

Jean-Marc Frailong

Jean Marc Frailong

A network device may receive a packet including control tags in a header portion of the packet and may extract candidate tags from the control tags in the header portion of the packet. The network device may compress, using a first lookup table, the candidate tags to obtain keys corresponding to the candidate tags, where each of the keys is represented in a compressed format relative to the corresponding candidate tags. The network device may further determine a final key based on the first keys and determine a priority class for the packet based on a lookup operation of the final key into a second lookup table. The network device may further write the packet, or a reference to the packet, to a selected priority queue, of a number of priority queues, where the priority queue is selected based on the determined priority class.

Fixed latency priority classifier for network data

A transmitting system inserts runt abort packets in an outgoing data stream during idle time inter-frame time fill. The runt abort packets cause the receiving system to synchronize itself to the transmitting system so that even if an error during inter-frame time fill causes the receiving system to go into an erroneous state, the receiving system will be synchronized with the transmitting system before receiving valid data. In one embodiment, the transmitting system transmits data in packets over SONET. The packet data is scrambled at the transmitting end and descrambled at the receiving end. Runt abort packets sent during inter-frame time fill resynchronize the descrambler. If there is an error in the inter-frame time fill bytes, causing the receiving end descrambler to no longer be synchronized with the transmitting end scrambler, the runt abort packets will cause the descrambler to resynchronize state with the transmitting scrambler.

System, apparatus, and method for increasing resiliency in communications

A system for reliably receiving data includes a memory, write logic, and read logic. The write logic receives data and an unreliable clock signal and writes the data to the memory using the unreliable clock signal. The read logic generates a gapped clock signal and reads the data from the memory using the gapped clock signal. The read logic generates the gapped clock signal by turning on and off a constant local clock signal.

System for recovering received data with a reliable gapped clock signal after reading the data from memory using enable and local clock signals

Growing community of inventors

Palo Alto, CA, United States of America

Eric M Verwillow