Arbor Networks, Inc.

Olan Patrick Barnes

James Edward Winquist

Lawrence Bruce Huston, Iii

Eric S Jackson

Chester Kustarz

James A Simpson

Tim Hoffman

Joseph Welch

A method to mitigate attack by an upstream service provider using cloud mitigation services. An edge detection device, which located at the subscriber's network edge, is able to communicate information via status messages about attacks to an upstream service provider. The service provider is then able to mitigate attacks based on the status messages. There is a feedback loop whereby the amount of dropped traffic by the service provider is added to the network traffic to keep the mitigation request open and prevent flapping. Likewise, the detection device includes time-to-engage and time-to-disengage timers to further prevent flapping.

System and method for denial of service attack mitigation using cloud services

A node in a communication network determines a data rate capacity of one or more nodes of the communication network and creates a single managed object grouping for each node of the one or more nodes having a same data rate capacity. The node establishes one or more static thresholds for the single managed object grouping based on the data rate capacity. The static thresholds are independent of a baseline condition of detected data rates at each node of the single managed object grouping. The node further detects a current rate of received data at each node of the single managed grouping and triggers at least one alert for each node of the single managed grouping when the current rate of the received data at a particular node exceeds the one or more static thresholds.

Forced alert thresholds for profiled detection

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Canton, MI, United States of America

Olan Patrick Barnes