Soft error recovery for converged networks
AssigneeInternational Business Machines Corporation
InventorsCasimer M DeCusatis, Thomas A Gregg, Rajaram B Krishnamurthy, Aburadha Rao
Life of this patent
Estimating the term…
Abstract
Detecting and recovering from soft errors in a network comprising a first device. A first device receives a first data packet. Responsive to receiving a second data packet, the first device determines whether the two data packets are identical. Responsive to the determination that the two data packets are not identical, the first device discards the two data packets, and requests retransmission of the two data packets.
Claims10
A method for detecting and recovering from soft errors in a network comprising a first device, said method comprising:
- receiving, by a first device, a first data packet, said first device comprising a virtual local area network (VLAN) input port, an output port and a comparator, said first data packet comprising a first tag, said first tag indicating that said first data packet is associated with a second data packet;
- responsive to receiving said second data packet, determining, by said first device, whether said first data packet and said second data packet are identical, said second data packet comprising a second tag, said second tag indicating that said second data packet is associated with said first data packet, said determining comprising:
- determining, by said first device, whether said first data packet and said second data packet arrive at said output port within a predetermined time interval, said determining by said first device resulting in a modification of a bit in said first device;
- and
- determining, by said comparator, whether said first data packet and said second data packet have identical content, said determining by said comparator resulting in an output comprising a bit parity;
- and
- responsive to said determination that said first data packet and said second data packet are not identical, discarding said first data packet and said second data packet at said first device, and requesting retransmission of said first data packet and said second data packet.
Dependencies are inferred from the claim text.