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:
Dec. 04, 2001
Filed:
May. 19, 1998
Trevor Jones, Maldon, GB;
Ahead Communications Systems, Inc., Middlebury, CT (US);
Abstract
An ATM switch (,) has a plurality of link controllers (,) each having a FIFO (,) for each VC established, a FIFO (,) for each priority level, and a traffic shaping FIFO (,) for pointers to ABR cells. Cells are pushed into the VC FIFO (,) and a pointer to the VC FIFO (,) is pushed into an arbitration FIFO (,) for the priority level of the VC FIFO (,). Pointers to ABR cells with onward transmission times are pushed into the traffic shaping FIFO (,). The arbitration FIFOs (,) are examined according to a schedule and cells are popped from VC FIFOs (,) according to priority for exit from the controller (,). A leaky bucket processor (,) calculates an average output cell rate OCR and ABR cells are popped from VC FIFOs out of turn if the MCR for the ABR VC exceed the OCR.