Patent ID: 11870751
Assignee: CISCO TECHNOLOGY, INC.
Field: Digital communication (Electrical engineering)
Classification: CPC H | IPC H

Claim 5:
6. A method comprising:
receiving, from a service discovery server, at a gateway in a first cluster, a programming request, the programming request including a mapping between an IP address of the gateway that is expected to be received in a connection request from a first node in the first cluster, and a destination IP address corresponding to a second node in a second cluster, wherein the programming request is in response to a service discovery request from the first node in the first cluster;
storing the mapping in the gateway in the first cluster;
receiving the connection request from the first node in the first cluster, the connection request including the IP address of the gateway and a destination port number of the second node in the second cluster; and
establishing a communication tunnel, via the gateway and based on the destination IP address and the destination port number, between the first node in the first cluster and the second node in the second cluster,
wherein the gateway is accessible, simultaneously, by way of another IP address, which is provided to another node in the first cluster, in response to a request to the service discovery server from the another node in the first cluster, to reach a third node in the second cluster.