Oracle International Corporation

Bjorn-Dag Johnsen

Line Holen

Dag Georg Moxnes

Martin Paul Mayhead

Ola Torudbakken

David Brean

Predrag Hodoba

Roy Arntsen

A system and method can support a middleware machine environment. The middleware machine environment can include a subnet manager and a plurality of fabric components, wherein each said fabric component is associated with a subnet management agent (SMA). The subnet manager maintains a topology graph that indicates how ports are connected in the subnet. The subnet manager operates to periodically reevaluate one or more states associated with each fabric component in the subnet by determining whether each SMA is responding correctly to a request.

System and method for supporting well defined subnet topology in a middleware machine environment

A system and method can support consistent handling of internal ID space for different partitions in an InfiniBand (IB) network. A plurality of partitions can be provided for a subnet with a plurality of hosts, wherein each partition of the subnet includes one or more hosts and each host can be associated with one or more physical HCA instances. Each partition in the subnet can be associated with a separate internal ID space, and a single physical HCA instance is prevented from being shared by different tenants that use a same internal ID value in different partitions.

System and method for supporting consistent handling of internal ID spaces for different partitions in an infiniband (IB) network

A system and method can support subnet manager (SM) level robust handling of an incoming unknown management key in an InfiniBand (IB) network. A local SM in a fabric is adaptive to receive an incoming subnet management packet (SMP) from a remote SM, wherein the SMP contains a first management key. Furthermore, the local SM operates to check whether the first management key is consistent with a configuration associated with the local SM, and can silently drop the incoming SMP if the first management key is not consistent with the local SM configuration.

System and method for supporting subnet manager (SM) level robust handling of unkown management key in an infiniband (IB) network

A system and method can provide source ID spoof protection in an InfiniBand (IB) fabric. The IB fabric can support a plurality of tenants in a subnet that connects a plurality of physical servers, wherein the plurality of tenants are associated with different partitions in the subnet. Then, the plurality of tenants can use at least one shared service, and the IB fabric can be configured to determine what ID values are legal for different physical servers and different partitions.

System and method for providing source ID spoof protection in an infiniband (IB) network

A system and method can perform subnet initialization in a middleware machine environment. In accordance with one embodiment, a plurality of management nodes in the middleware machine environment can be interconnected so that a plurality of subnet managers that are associated with the plurality of management nodes can communicate with each other using an in-band communication protocol. The plurality of subnet managers can negotiate and elect a master subnet manager, which operates to configure and manage the middleware machine environment. The master subnet manager can replicate one or more subnet initialization policies to other subnet managers in the middleware machine environment using the in-band communication protocol. The master subnet manager can then set up a plurality of client nodes in the middleware machine environment based on the one or more subnet initialization policies.

Performing partial subnet initialization in a middleware machine environment

A system and method can support a middleware machine environment that include one or more gateway nodes. One or more gateways that resides on the one or more gateway nodes are provided in a subnet with a plurality of host servers, wherein each host server is associated with one or more virtual network interface cards (vNICs). The middleware machine environment also include a plurality of virtual hubs (vHUB) on the one or more gateways, with each vHUB associated with one or more said vNICs. The gateways are adapted to connect with an external network, and operate to forward a multicast packet to both the external network and the plurality of host servers via the plurality of vHUBs, and prevent multicast packet traffic loops between the subnet and the external network.

System and method for providing ethernet over network virtual hub scalability in a middleware machine environment

A system and method can support a middleware machine environment that includes a set of subnet manager instances, which reside on one or more nodes in the middleware machine environment and cooperate to provide a highly available subnet manager service within a subnet, wherein each said subnet manager instance is associated with a different private secure key. The subnet manager instances can negotiate with each other and elect a master subnet manager responsible for configuring and managing the middleware machine environment using the private secure key associated with the master subnet manager. The subnet can be reconfigured to be associated with a different private secure key, when a new subnet manager instance is elected as the master subnet manager. An old master subnet manager can be automatically prevented from resuming normal operations as the master subnet manager, in order to avoid undesired consequence such as a 'split brain' scenario.

System and method for facilitating protection against run-away subnet manager instances in a middleware machine environment

A system and method can support virtual network interface card (NIC) failover in a middleware machine environment. The middleware machine environment includes a local management node and a remote management node. The system provides a local NIC driver and a remote proxy instance on a local management node. The remote proxy instance can associate a machine address with a remote NIC driver on a remote management node that is connected with the local remote management node in a subnet. Furthermore, the remote proxy instance operates to direct packets to and from the remote NIC driver using the machine address.

System and method for supporting management network interface card port failover in a middleware machine environment

A system and method can provide subnet manager (SM) restrictions in an InfiniBand (IB) network. A first SM in a subnet in the IB network operates to determine whether a second SM associated with a remote port is trustworthy. Furthermore, the first SM is allowed to send at least one of a request and a response that contains a management key to the second SM, if the first SM determines that the second SM is trustworthy. Additionally, the first SM is prevented from attempting to initiate communication with the second SM, if otherwise.

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Oslo, Norway

Bjorn-Dag Johnsen