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:
Oct. 16, 2007
Filed:
Aug. 11, 2000
Joseph A. Hook, Baden, PA (US);
Fan Zhou, Petaluma, CA (US);
Joseph A. Hook, Baden, PA (US);
Fan Zhou, Petaluma, CA (US);
Ericsson AB, Stockholm, SE;
Abstract
A switch includes a port card for receiving packets from and sending packets to a network. The switch includes a fabric connected to the port card for switching the packets. The fabric has memory controllers which perform logical functions and in which portions of the packets are stored. The fabric has stages for switching the portions of the packets. The fabric has a mechanism for propagated lockdown of each stage wherein each stage is idle a correct number of cycles and each memory controller performs the same logical functions the corresponding same logical cycles. A method for switching packets includes the steps of introducing idles a correct number of cycles in each stage of memory controllers in fabrics of a switch to maintain the fabrics in logical synchronization. Then there is the step performing with each memory controller in the fabrics same logical functions at corresponding same logical cycles.