Protection of devices in a redundant configuration
First Claim
1. A device comprising a control processor for controlling operation of said device,a reset module adapted to be controlled independently of said control processor for performing a reset operation of said device, anda monitor for monitoring the control status associated with control of the device by the control processor.
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Accused Products
Abstract
A network communication device is provided, comprising a control processor for controlling operation of the device, a reset module which is controllable independently of the control processor for performing a reset operation of the device, and a reset control interface for receiving a reset signal, the reset module being responsive to the reset signal for performing the reset operation. A monitor is provided for monitoring the status of the control processor and an interface is adapted to transmit information relating to the monitored status from the device. A second, inactive device is provided to protect the communication device in the event of a control fault which renders the communication device unreachable. The protection device includes a reset interface for transmitting a reset signal to the reset module to enable the communication device to release activity.
22 Citations
24 Claims
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1. A device comprising a control processor for controlling operation of said device,
a reset module adapted to be controlled independently of said control processor for performing a reset operation of said device, and a monitor for monitoring the control status associated with control of the device by the control processor.
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16. A device comprising
a monitor for monitoring control status of another device, and an interface adapted to transmit a signal for resetting said other device in response to said monitor detecting a predetermined control status of said other device.
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21. An apparatus comprising
a monitor for monitoring a condition of first and second devices, the first and second devices being capable of performing functions of each other, and an interface for transmitting a predetermined signal to at least one of said first and second devices in response to said monitor detecting a predetermined condition.
Specification