US 11,956,207 B2
Multi-tenant aware dynamic host configuration protocol (DHCP) mechanism for cloud networking
Liang Rong, Jiangsu (CN); Gang Tang, Nanjing (CN); Zi J. Tao, Wuxi (CN); and Ming S. Xian, Wuxi (CN)
Assigned to KYNDRYL, INC., New York, NY (US)
Filed by Kyndryl, Inc., New York, NY (US)
Filed on Dec. 2, 2022, as Appl. No. 18/073,787.
Application 18/073,787 is a continuation of application No. 17/144,316, filed on Jan. 8, 2021, granted, now 11,546,293.
Application 17/144,316 is a continuation of application No. 16/526,477, filed on Jul. 30, 2019, granted, now 10,904,206, issued on Jan. 26, 2021.
Application 16/526,477 is a continuation of application No. 15/809,146, filed on Nov. 10, 2017, granted, now 10,425,381, issued on Sep. 24, 2019.
Application 15/809,146 is a continuation of application No. 14/719,723, filed on May 22, 2015, granted, now 9,887,961, issued on Feb. 6, 2018.
Prior Publication US 2023/0108856 A1, Apr. 6, 2023
This patent is subject to a terminal disclaimer.
Int. Cl. H04L 61/5014 (2022.01); H04L 12/46 (2006.01); H04L 61/5061 (2022.01)
CPC H04L 61/5014 (2022.05) [H04L 12/4633 (2013.01); H04L 12/4641 (2013.01); H04L 61/5061 (2022.05); H04L 2012/4629 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A computer program product comprising a computer readable storage medium having program instructions embodied therewith, wherein the computer readable storage medium is not a transitory signal per se, the program instructions executable by a dynamic host configuration protocol (DHCP) relay agent computing device to cause the DHCP relay agent computing device to:
configure a first field of a tenant-specific DHCP option frame format in a tenant-specific option information to denote an overlay protocol type that is used for tenant isolation in overlay virtual networks;
configure a second field of the tenant-specific DHCP option frame format in the tenant-specific option information to uniquely identify a tenant in a multiple tenant cloud data center;
configure a third field of the tenant-specific DHCP option frame format in the tenant-specific option information to denote a virtual network of the overlay virtual networks;
derive an encoding value of a transport agent in the tenant-specific option information in response to the DHCP relay agent computing device on a network virtualization edge (NVE),
wherein the second field is used by the DHCP server to locally scope an address range to an address space of the tenant.