Oracle International Corporation

Tirthankar Das

Sambit Nayak

Ellard Roush

Honsing Cheng

Thejaswini Singarajipura

An aspect of the present invention provides a corresponding exclusive communication stack (e.g., TCP/IP stack) for each zone entity of a server system. In an embodiment, multiple server systems together implement a zone cluster containing such zone entities provided on corresponding server systems. As a result, when an application executing on a first zone entity of a first server is moved to a second zone entity of a zone cluster on a second server, the application continues to communicate using exclusive communication stack provided for the second zone entity. In view of the dedicated resources for network communication, applications executing in any zone entity of such a zone cluster, may have a desired level of predictable throughput performance and security for the communicated data packets.

Networking support for zone clusters based on virtualization of servers

Some embodiments may include multiple computers comprising a multi-level security system. The security system includes a first set of zones and a second set of zones, each having access to resources of a computer, a first security container having a first security label containing the first set of zones, and a second security container with a second security label containing the second set of zones. The resources and data of each of the first and second set of zones inherit the security label of their corresponding security container. The security system further includes a global zone, the global zone has access to the resources of the computer, a kernel having access to the security label information for each security container and zone, where requests for data and resources stored on the computer are first sent to the kernel, and the kernel adds the security label data, the kernel or the global zone on any computer perform security checks, and then the request may then be processed by the kernel or global zone on any computer.

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Kolkata, India

Tirthankar Das