Rockwell Collins, Inc.

Andrew J Bys

Tj T Kwon

Wayne H Meyer

Naveen Rajanikantha

Anthony D Schaefer

Taunya L Kepple

Blanka Giese

A method of performing passive packet cross-checking of flooding packets within a multi-node system is disclosed. A first flooding packet is transmitted from a communication node to a first additional communication node of the multi-node system. The first flooding packet causes the first additional communication node to transmit a second flooding packet based on the first flooding packet to the communication node and to a second additional communication node of the multi-node system. A copy of the first flooding packet is stored in a memory cache of the communication node. The second flooding packet is received at the communication node from the first additional communication node. The second flooding packet and the stored copy of the first flooding packet are compared at the communication node, and a status of the first additional communication node is determined based on the comparison.

Passive packet cross check for multi-node systems

A method of performing data frame error recovery is disclosed. A data packet is received and tested to determine whether the data packet includes one or more bit errors. The data packet is compared with one or more data packets stored in a recovery buffer to identify a duplicate of the data packet when the data packet includes one or more bit errors. One or more bits affected by the one or more bit errors are identified based on a comparison between the data packet and the duplicate of the data packet. Different combinations of bit values for the one or more bits are determined, and the data packet is tested with the different combinations to identify a correct combination of bit values for the one or more bits. The data packet is recovered based on the correct combination of bit values for the one or more bits.

Data frame error recovery for multi-node systems

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Cedar Rapids, IA, United States of America

Andrew J Bys