The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jan. 29, 2019
Filed:
May. 11, 2016
Telefonaktiebolaget Lm Ericsson (Publ), Stockholm, SE;
Gaurav Garg, San Jose, CA (US);
Tong Ho, San Jose, CA (US);
Tolefonaktiebolaget LM Ericsson (Publ), Stockholm, SE;
Abstract
A method is implemented by a network device to configure the operation of a Peripheral Component Interconnect Express (PCIe) switch to enable an efficient transition from a first active processor in a first root complex to a backup processor in a second root complex. The method involves determining the first active processor in the first root complex and a set of backup processors and a set of root complexes, and configuring each root complex for independent PCIe switch communication. The method further includes detecting a failure of the active processor in the first root complex, selecting and notifying the backup processor and the second root complex to transition to be a second active processor and second root complex, and starting communication with PCIe devices using previously configured independent PCIe switch communication for the second processor of the second root complex.