Patent ID: 11888831
Assignee: CISCO TECHNOLOGY, INC.
Field: Digital communication (Electrical engineering)
Classification: CPC H | IPC H

Claim 14:
15. An apparatus comprising:
one or more network interfaces configured to communicate over a network; and
one or more processors, wherein the one or more processors are configured to perform operations on behalf of a first device comprising a first Encapsulating Security Payload node, the operations including:
obtaining, via the one or more network interfaces, Encapsulating Security Payload traffic for an established Internet Protocol Security session, wherein the established Internet Protocol Security session is established with a second Encapsulating Security Payload node arranged at a second device;
determining that the first Encapsulating Security Payload node does not contain session data associated with the established Internet Protocol Security session;
providing, via the one or more network interfaces, a request for the session data associated with the established Internet Protocol Security session; and
obtaining, via the one or more network interfaces from a data store arranged at a third device, session data for the established Internet Protocol Security session to transfer the established Internet Protocol Security session from the second Encapsulating Security Payload node to the first Encapsulating Security Payload node,
wherein the Encapsulating Security Payload traffic is obtained in response to load balancing among a plurality of Encapsulating Security Payload nodes.