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:
Aug. 23, 2011
Filed:
Jan. 24, 2003
Kendall William Harvey, Woodlawn, CA;
Brian Roger Winger, Ashton, CA;
Kendall William Harvey, Woodlawn, CA;
Brian Roger Winger, Ashton, CA;
Alcatel Lucent, Paris, FR;
Abstract
An embodiment of a method and apparatus for synchronizing communication tasks (e.g., transmission control protocol (TCP) tasks) for redundancy in a network element is disclosed herein. The method includes an operation for receiving an inbound TCP packet at a TCP task of an active routing module of a network element. An operation is performed for queuing a first copy of the inbound TCP packet in a receive queue of the active routing module. After queuing the first copy of the inbound TCP packet, an operation is performed for forwarding a second copy of the inbound TCP packet to an inactive routing module of the network element. After receiving the second copy of the inbound TCP packet, an operation is performed for queuing the second copy of the inbound TCP packet in a receive queue of the inactive routing module.