US 11,706,139 B2
Communication of policy changes in LISP-based software defined networks
Prakash C. Jain, Fremont, CA (US); Sanjay Kumar Hooda, Pleasanton, CA (US); Satish Kondalam, Milpitas, CA (US); Raja Janardanan, Milpitas, CA (US); Aaditya Vadnere, Milpitas, CA (US); and Shivangi Sharma, Los Gatos, CA (US)
Assigned to Cisco Technology, Inc., San Jose, CA (US)
Filed by Cisco Technology, Inc., San Jose, CA (US)
Filed on Sep. 15, 2021, as Appl. No. 17/476,462.
Application 17/476,462 is a continuation of application No. 16/864,442, filed on May 1, 2020, granted, now 11,165,702.
Prior Publication US 2022/0006738 A1, Jan. 6, 2022
This patent is subject to a terminal disclaimer.
Int. Cl. H04L 12/28 (2006.01); H04L 45/74 (2022.01); H04L 45/02 (2022.01); H04L 45/00 (2022.01); H04L 47/20 (2022.01); H04L 47/33 (2022.01); H04L 9/40 (2022.01)
CPC H04L 45/742 (2013.01) [H04L 45/04 (2013.01); H04L 45/54 (2013.01); H04L 47/20 (2013.01); H04L 47/33 (2013.01); H04L 63/20 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A method comprising:
receiving, at a first routing device, a first notification indicating a change in a policy for communication between a first endpoint device and a second endpoint device, the first endpoint device being connected to a network fabric through the first routing device and the second endpoint device being connected to the network fabric through a second routing device;
determining whether one or more entries of a cache in the first routing device are affected by the change in the policy, wherein the one or more entries of the cache comprise mapping information; and
sending a second notification to the second routing device based on a determination that the one or more entries of the cache are affected by the change in the policy, the second notification indicating one or more endpoints connected to the second routing device that are affected by the change in the policy.