	US 12,284,208 B2
	Event driven route control
Robert Smith, Irvine, CA (US); Shawn Marck, San Francisco, CA (US); and Christopher Newton, Westlake Village, CA (US)
Assigned to Level 3 Communications, LLC, Denver, CO (US)
Filed by Level 3 Communications, LLC, Broomfield, CO (US)
Filed on Sep. 6, 2023, as Appl. No. 18/242,874.
Application 18/242,874 is a continuation of application No. 17/968,839, filed on Oct. 19, 2022, granted, now 11,757,932.
Application 17/968,839 is a continuation of application No. 17/239,745, filed on Apr. 26, 2021, granted, now 11,595,433, issued on Feb. 28, 2023.
Application 17/239,745 is a continuation of application No. 16/449,916, filed on Jun. 24, 2019, granted, now 10,999,319, issued on May 4, 2021.
Application 16/449,916 is a continuation of application No. 16/155,587, filed on Oct. 9, 2018, granted, now 10,333,969, issued on Jun. 25, 2019.
Application 16/155,587 is a continuation of application No. 15/707,772, filed on Sep. 18, 2017, granted, now 10,097,579, issued on Oct. 9, 2018.
Application 15/707,772 is a continuation of application No. 14/852,518, filed on Sep. 12, 2015, granted, now 9,769,202, issued on Sep. 19, 2017.
Claims priority of provisional application 62/050,000, filed on Sep. 12, 2014.
Prior Publication US 2023/0421603 A1, Dec. 28, 2023
This patent is subject to a terminal disclaimer.
Int. Cl. H04L 9/40 (2022.01)

CPC H04L 63/1458 (2013.01) [H04L 63/20 (2013.01)]

17 Claims

1. A method comprising:

detecting an attack event;

determining a routing scheme that routes network traffic to one or more mitigation systems of a mitigation network;

communicating the routing scheme to one or more routing devices to cause the one or more routing devices to update from a first Domain Name Service (DNS) zone associated with a non-mitigation system of the mitigation network to a second DNS zone associated with the one or more mitigation systems; and

initiating, by the one or more mitigation systems, scrubbing of the network traffic according to one or more mitigation rules.