Amazon Technologies, Inc.

Robert Kennedy

Karl Andre McCabe

Timothy Richard Kohn

Richard Alexander Sheehan

Paul A Stancik

Devin Kowatch

Matthew Dean Rehder

Brian Long

Dzianis Lisouski

Michal Zygmunt Zawirski

Brian R White

Brian Joseph Callan

A traffic shifting system is described to shift traffic away from one or more network devices or interfaces. The system ensures that traffic can be safely shifted off of a network device before the shifting occurs. The method is described as broken into several phases, such as a discovery phase, a pre-check phase, a shifting phase, and a post-shift phase. Before shifting occurs, the discovery phase is used to obtain network topology and configuration information. In the pre-check phase, that information is interrogated so that a shifting can be performed without negatively impacting the network. If the pre-check phase is passed, then the network shifting can occur through adjustment of configuration parameters, such as a cost parameter associated with an interface on any devices for which traffic is being shifted. Finally, in the post-shift phase, checks are performed to ensure traffic is shifting away from the network device.

Shifting network traffic from a network device

A traffic shifting system is described to shift traffic away from one or more network devices or interfaces on those devices. The system ensures that traffic can be safely shifted off of a network device before the shifting occurs. The method is described as broken into several phases for simplicity, such as a discovery phase, a pre-check phase, a shifting phase, and a post-shift phase. Before shifting occurs, the discovery phase is used to obtain network topology and configuration information. In the pre-check phase, that information is interrogated so that a shifting can be performed without negatively impacting the network. If the pre-check phase is passed, then the network shifting can occur through adjustment of configuration parameters, such as a cost parameter. Finally, in the post-shift phase, checks are performed to ensure traffic is shifting away from the network device.

Shifting network traffic

Systems and methods for implementing network changes are described herein. In one aspect, a network change procedure may be comprised of a plurality of scripts that may implement a change in the network. In one embodiment, the deployment may be paused after the script has been executed. During the pause, a change management server may determine the impact of the change on the network. If the change had a positive effect, the change management server may execute another script to make another network change. However, if the change had a negative effect, the change management server may initiate one or more remedial actions.

Network change management

A policy-driven automatic network remediation service is described, which resides on the network and is triggered when a network fault is detected. Once triggered, the service automatically connects to network devices in the topological locale of the detected fault and collects diagnostic information from the affected area, running diagnostics which are appropriate to the fault type. The service can validate a set of preconditions prior to taking remedial action. For example, the service can empirically validate that the network topology is actually as expected and that automatic remediation would be safe and would not compromise network availability or redundancy. Diagnostic information can be recorded in a trouble ticket to support post-event auditing. Once the preconditions have been validated, the service can automatically take corrective action based on the type of the fault, such as shutting down an interface on a particular network device.

Policy-driven automatic network fault remediation

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Dublin, Ireland

Robert Kennedy