Packet routing with analysis assist for embedded applications sharing a single network interface over multiple virtual networks

US9148368B2 · kind B2 · utility

Assignee

• International Business Machines Corporation · US

Inventors

• William J. Armstrong · Rochester, US
• Claude Basso · Nice, FR
• Josep Cors · Rochester, US
• David R. Engebretsen · Cannon Falls, US
• Paul E. Movall · Rochester, US
• Eric G. Thiemann · Owatonna, US
• Colin Beaton Verrilli · Apex, US
• Bruce M. Walk · Rochester, US

Key dates

• Filing date: Feb 14, 2012
• Grant date: Sep 29, 2015
• Expiry date: Feb 4, 2034

Classification

• Technology area (CPC H): Electricity
• CPC primary: H04L49/355
• WIPO field: Digital communication
• WIPO sector: Electrical engineering

Abstract

Techniques are provided for packet routing in a distributed network switch. The distributed network switch includes multiple switch modules operatively connected to one another, and each switch module includes multiple bridge elements and a management controller. In one embodiment, a shared interface routing (SIR) framework is provided that includes an analysis and bifurcation layer, at least one packet interface, and an analysis assist layer. A packet is received over a first logical network and via a physical port, the packet being destined for at least a first application executing on the management controller. The analysis assist layer analyzes the packet to determine a reason code to assign to the packet. The analysis and bifurcation layer then analyzes the packet based at least in part on the reason code.