Translating between an ethernet protocol and a converged enhanced ethernet protocol

US8902750B2 · kind B2 · utility

Assignee

• International Business Machines Corporation · US

Inventors

• Claude Basso · Nice, FR
• Anil Pothireddy · Bengaluru, IN
• Christoph Raisch · Gerlingen, DE
• Saravanan Sethuraman · Bengaluru, IN
• Vibhor K. Srivastava · Sidhauli, IN
• Jan-Bernd Themann · Lörrach, DE
• Fabrice Jean Verplanken · Aurillac, FR

Key dates

• Filing date: Jun 1, 2011
• Grant date: Dec 2, 2014
• Expiry date: Jun 5, 2032

Classification

• Technology area (CPC H): Electricity
• CPC primary: H04L47/34
• WIPO field: Digital communication
• WIPO sector: Electrical engineering

Abstract

Translating between an Ethernet protocol used by a first network component and a Converged Enhanced Ethernet (CEE) protocol used by a second network component, the first and second components coupled through a CEE Converter that translates by: for data flow from the first network component to the second network component: receiving, by the CEE converter, traffic flow definition parameters for a single CEE protocol data flow; calculating, by a credit manager, available buffer space in an outbound frame buffer of the CEE converter for the data flow; communicating, by the credit manager to a CEE credit driver of the first component, the calculated size of the buffer space together with a start sequence number and a flow identifier; and responding, by the CEE credit driver to the CEE converter, with Ethernet frames comprising a private header that includes the flow identifier and a sequence number.