US 11,818,043 B2
Highly-available host networking with active-active or active-backup traffic load-balancing
Jagwinder Singh Brar, Bellevue, WA (US); Bryce Eugene Bockman, Seattle, WA (US); and Santosh Narayan Shilimkar, San Jose, CA (US)
Assigned to Oracle International Corporation, Redwood Shores, CA (US)
Filed by Oracle International Corporation, Redwood Shores, CA (US)
Filed on Jan. 11, 2021, as Appl. No. 17/145,957.
Claims priority of provisional application 63/132,062, filed on Dec. 30, 2020.
Prior Publication US 2022/0210068 A1, Jun. 30, 2022
Int. Cl. H04L 45/745 (2022.01); H04L 47/125 (2022.01); H04L 45/64 (2022.01); H04L 61/2514 (2022.01); H04L 45/28 (2022.01); H04L 61/103 (2022.01); H04L 45/24 (2022.01)
CPC H04L 45/745 (2013.01) [H04L 45/24 (2013.01); H04L 45/28 (2013.01); H04L 45/64 (2013.01); H04L 47/125 (2013.01); H04L 61/103 (2013.01); H04L 61/2514 (2013.01)] 19 Claims
OG exemplary drawing
 
1. A method comprising:
selecting a compute instance, from an overlay network residing on a substrate network;
identifying a plurality of Network Virtualization Devices (“NVD”) for association with the compute instance;
creating a loopback interface on each of the NVDs, each of the loopback interfaces comprising a shared Internet Protocol (“IP”) address uniquely identifying the compute instance, wherein the IP address is in the substrate layer;
prepopulating a table in each of the NVDs, the table linking the shared IP address to the compute instance;
each of the plurality of NVDs advertising a unique route to the compute instance via the shared IP address; and
determining a route characterizer for each of the unique routes, wherein advertising the unique route to the compute instance via the shared IP address comprises advertising the route characterizer of that unique route.