Network device

US9300591B2 · kind B2 · utility

Assignee

• Schweitzer Engineering Laboratories, Inc. · US

Inventors

• Manodev J. Rajasekaran · Pullman, US
• David M. Rector · Santa Monica, US
• Damian Sanchez Moreno · Troy, US
• M. Wesley Kunzler · Gresham, US
• Srinivas Achanta · Pullman, US
• Jerry J. Bennett · Pullman, US
• Ian C. Ender · Bothell, US

Key dates

• Filing date: Dec 2, 2013
• Grant date: Mar 29, 2016
• Expiry date: Apr 30, 2034

Classification

• Technology area (CPC H): Electricity
• CPC primary: H04L49/90
• WIPO field: Digital communication
• WIPO sector: Electrical engineering

Abstract

Disclosed is a network communication switch that facilitates reliable communication of high priority traffic over lower priority traffic across all ingress and egress ports. The network communication switch may monitor the frame storage buffer regardless of egress port, and when the frame storage buffer reaches a predetermined level, the switch may discard lower priority frames from the most congested port. When the frame storage buffer reaches a second predetermined level, the switch may discard lower priority frames before they are stored according to egress port. The network communication switch may further monitor ingress frames for priority, and assign priority to frames according to pre-assigned priority, ingress port, and/or frame contents.