Safe state for networked devices
First Claim
1. A system comprising:
- a first device comprising a processor and addressable memory; and
a second device comprising a processor and addressable memory coupled to the first device in a network,wherein the first device is configured to send one or more safe state environment messages, wherein the second device autonomously determines it needs to be managed and initiates a safe state in response to detecting a link-up between the first device and the second device and receiving a safe state environment message of the one or more safe state environment messages, wherein the second device is further configured to disable an operational functionality, wherein the disabling of the operational functionality includes packet forwarding functionality of the second device, and wherein an interface of the second device that received the safe state environment message is designated as a management interface, and wherein the management interface of the second device is configured to receive information for managing the second device.
1 Assignment
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Accused Products
Abstract
A method placing a device in safe state is disclosed. The method includes initiating a safe state for a device. In one embodiment, an operational functionality of the device is disabled. A safe state message at an interface of the device may be received. The interface may be designated as a management interface. Information may be received at the management interface, wherein the information manages the device. The method may also include disabling a non-management interface of the device, wherein the non-management interface is an interface that does not receive a safe state message. The method may further include shutting down a non-management interface of the device, wherein the non-management interface is an interface that does not receive a safe state message. A normal state for the device may be initiated, wherein in the normal state the device restores the operational functionality of the device.
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Citations
22 Claims
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1. A system comprising:
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a first device comprising a processor and addressable memory; and a second device comprising a processor and addressable memory coupled to the first device in a network, wherein the first device is configured to send one or more safe state environment messages, wherein the second device autonomously determines it needs to be managed and initiates a safe state in response to detecting a link-up between the first device and the second device and receiving a safe state environment message of the one or more safe state environment messages, wherein the second device is further configured to disable an operational functionality, wherein the disabling of the operational functionality includes packet forwarding functionality of the second device, and wherein an interface of the second device that received the safe state environment message is designated as a management interface, and wherein the management interface of the second device is configured to receive information for managing the second device. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. A system comprising:
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a first device comprising a processor and addressable memory; and a second device comprising a processor and addressable memory coupled to the first device in a network, wherein the first device is configured to send one or more safe state environment messages, wherein the second device in response to detecting a fault condition in the second device and receiving a first plurality of safe state environment messages of the one or more safe state environment messages autonomously determines that the second device needs to be managed and initiates a safe state, wherein the second device is further configured to disable an operational functionality of the second device, wherein the disabling of the operational functionality includes packet forwarding functionality of the second device, and wherein a first plurality of interfaces of the second device to be managed is configured to receive a first plurality of messages within a certain period of time and wherein the first plurality of interfaces is designated as management interfaces, and wherein the management interfaces are configured to receive information associated with configuring the second device. - View Dependent Claims (10, 11, 12, 13, 14, 15, 16, 17, 18)
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19. A system comprising:
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a first device comprising a processor and addressable memory; and a second device comprising a processor and addressable memory coupled to the first device in a network, wherein the first device is configured to send one or more safe state environment messages, wherein the second device determines it needs to be managed and initiates a safe state in response to a request by the second device to be configured and receiving a safe state environment message of the one or more safe state environment messages, wherein the second device is further configured to disable an operational functionality, wherein the disabling of the operational functionality includes packet forwarding functionality of the second device, and wherein an interface of the second device that received the safe state environment message is designated as a management interface, and wherein the management interface of the second device is configured to receive information for configuring the second device. - View Dependent Claims (20, 21, 22)
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Specification