US 12,381,809 B2
Detecting and communicating with silent hosts in software-defined networks
Satish Kondalam, Milpitas, CA (US); Sanjay Kumar Hooda, Pleasanton, CA (US); Prakash C. Jain, Fremont, CA (US); and Vikram Vikas Pendharkar, San Jose, CA (US)
Assigned to Cisco Technology, Inc., San Jose, CA (US)
Filed by Cisco Technology, Inc., San Jose, CA (US)
Filed on Oct. 13, 2023, as Appl. No. 18/487,021.
Application 18/487,021 is a continuation of application No. 17/684,376, filed on Mar. 1, 2022, granted, now 11,799,767.
Application 17/684,376 is a continuation of application No. 16/864,402, filed on May 1, 2020, granted, now 11,316,782, issued on Apr. 26, 2022.
Prior Publication US 2024/0039839 A1, Feb. 1, 2024
This patent is subject to a terminal disclaimer.
Int. Cl. H04L 45/02 (2022.01); H04L 12/18 (2006.01); H04L 45/00 (2022.01); H04L 45/16 (2022.01); H04L 45/64 (2022.01)
CPC H04L 45/02 (2013.01) [H04L 12/18 (2013.01); H04L 45/16 (2013.01); H04L 45/32 (2013.01); H04L 45/64 (2013.01)] 20 Claims
OG exemplary drawing
 
10. A system comprising:
one or more processors; and
a computer-readable medium comprising instructions stored therein, which when executed by the one or more processors, cause the one or more processors to:
identify an interface of a fabric device that connects endpoints to a network fabric of a software-defined network;
determine that an address of an endpoint connected to the interface is unavailable at the fabric device;
determine that the endpoint is a silent host based on a determination that the address of the endpoint is unavailable at the fabric device; and
route traffic, that is intended for the endpoint through the network fabric, from the endpoint to the fabric device in response to determining that the host is the silent host.