Patent ID: 7881303
Filing Date: 2011-02-01
Classification: H04L

Abstract:
1. A node configured to couple to a link, the node comprising: a transmit circuit configured to transmit packets on the link, each packet comprising one or more cells; and a cell scheduler coupled to the transmit circuit and configured to schedule cells to be transmitted by the transmit circuit, wherein the cell scheduler is configured to schedule at least one error detection cell to be transmitted, the error detection cell covering a preceding packet, and wherein, responsive to detecting that a second packet is available for scheduling when the at least one error detection cell is ready to be scheduled, the cell scheduler is configured to schedule cells of the second packet instead of the error detection cell, and wherein the error detection cell, when subsequently scheduled, covers the preceding packet and the second packet, and wherein an error within the preceding packet and the second packet is detectable using the error detection cell when the error detection cell covers the preceding packet and the second packet, and wherein an error within the preceding packet is detectable using the error detection cell when the error detection cell covers the preceding packet.