Advanced switching lost packet and event detection and handling

Details Advanced switching lost packet and event detection and handling Advanced switching lost packet and event detection and handling

2005-03-31

2009-02-24

Lohn, Joshua A (Department: 2114)

Error detection/correction and fault detection/recovery

Data processing system error or fault handling

Reliability and availability

C714S004110, C714S051000

Reexamination Certificate

active

07496797

ABSTRACT:
Embodiments of the invention may provide a method to send a packet from an endpoint in an advanced switching fabric and starting a timer to run until receiving a response packet or receiving an event packet notifying of a device failure, save a copy of the sent packet, detect if the timer has expired, retransmit the packet after the timer has expired and resetting the timer; and run a faulty device detection algorithm if the packet has been retransmitted a predetermined number of times. Furthermore, some embodiments may provide an apparatus with a retransmit buffer, and an endpoint that can send a packet and save a copy of the packet in the retransmit buffer, detect if a timer expired and retransmit the packet after the timer has expired and no packet was received in response to the transmitted packet, and run a faulty device detection algorithm.

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