Facilitating recovery in a coordinated timing network

US7783913B2 · kind B2 · utility

Assignee

• International Business Machines Corporation · US

Inventors

• Scott M. Carlson · Tucson, US
• Donald Crabtree · Port Ewen, US
• Dennis J. Dahlen · Rhinebeck, US
• Noshir R. Dhondy · Saugerties, US
• David A. Elko · Austin, US
• Denise M. Sevigny · Wappingers Falls, US
• Ronald M. Smith, Sr. · Wappingers Falls, US
• David E. Whitney · Poughkeepsie, US
• Judith A. Wierbowski · Owego, US

Key dates

• Filing date: Oct 22, 2007
• Grant date: Aug 24, 2010
• Expiry date: Feb 9, 2029

Classification

• Technology area (CPC H): Electricity
• CPC primary: H04J3/0641
• WIPO field: Telecommunications
• WIPO sector: Electrical engineering

Abstract

Recovery is provided in a timing network. A configuration is defined for that network, and in that configuration, an active primary server is identified that provides a clock source for the network. Additionally, an alternate server is identified that can perform the role of the active primary server, should the active primary server fail. In response to a failure of the primary server, the alternate server detects the failure and performs takeover of the primary server.