Unisys Corporation

John A Peters

Robert L Bergerson

Jason C Schultz

James R Heit

Allyn D Smith

Mark V Deisinger

Methods and systems for logging data in a computing system are disclosed. The methods and systems include receiving a first request to create log data of an activity of the computing system. The methods and systems further include acquiring information about the activity of the computing system. The methods and systems further include creating the log data of the activity of the computing system. The methods and systems further include retrieving stored log data.

Configuring logging in non-emulated environment using commands and configuration in emulated environment

Systems and methods for dynamically configuring a network switch for monitoring are disclosed. Embodiments may include receiving an IP address associated with a network switch. Embodiments may also include probing the network switch based, at least in part, on the received IP address to obtain first information regarding the network switch, wherein the first information includes at least one of a vendor of the network switch, a model of the network switch, and a firmware version of the network switch. Embodiments may further include configuring the processor to monitor the network switch based on processing of the first information.

Systems and methods for dynamically configuring a network switch for monitoring

Systems and methods for adaptive router failover in Linux-based computing systems are disclosed. Embodiments may include configuring a Linux-based computing system to have access to at least a first router and a second router. Embodiments may further include transmitting one or more data packets from the Linux-based computing system to another computing system via the first router. Embodiments may also include identifying a failure in the first router and, in response to identification of the failure in the first router, automatically switching use of the first router and second router by the Linux-based computing system. Embodiments may further include transmitting one or more data packets from the Linux-based computing system to another computing system via the second router after switching the use of the first router and second router by the Linux-based computing system.

Systems and methods for adaptive router failover in Linux-based computing systems

Systems and methods for establishing a VLAN or a subinterface on a computing system using a single configuration statement are disclosed. Embodiments may include modifying a configuration statement that configures a NIC coupled to the computing system to include a new field which indicates if a VLAN should be created on the NIC port. Embodiments may also include receiving a configuration statement that includes the new field. Embodiments may further include creating a VLAN on an Ethernet computer network or a subinterface on an InfiniBand computer network based on the received configuration statement that includes the new field.

Systems and methods for establishing a VLAN on a computing system irrespective of the computer networking technology utilized by the computing system

A method and apparatus for high-speed data path selection for network transfer using IP addresses is disclosed. The method may include configuring an IP address for a non-RDMA data transfer or an RDMA high speed data transfer. An application executing in an emulated environment may transfer data using the same function calls for both non-RDMA data transfer or an RDMA high speed data transfer. This reduces changes to the application to allow RDMA transfers. A non-emulated interface determines whether the IP address is flagged as an RDMA address. If so, the data is transferred via an RDMA data path. If the IP address is not flagged as an RDMA address, the data is transferred via a non-RDMA data path through a traditional network stack.

Data path selection for network transfer using high speed RDMA or non-RDMA data paths

A network handler may be triggered to process input/output requests placed on a network queue to reduce latency compared to occasionally polling the network queue for new input/output requests. A method for processing network input/output requests may include receiving, by a processor, an input/output request for a network device; placing, by the processor, on a network queue the input/output request; and triggering, by the processor, a handler for the network queue.

Triggering processing of network requests

A fast send method may be selectively implemented for certain data packets received from an application for transmission through a network interface. When the fast send method is triggered for a data packet, the application requesting transmission of the data packet may be provided a completion notice nearly immediately after the data packet is received. The fast send method may be used for data packets similar to previously-transmitted data packets for which the information in the data packet is already vetted. For example, a data packet with a similar source address, destination address, source port, destination port, application identifier, and/or activity identifier may have already been vetted. A socket table may be maintained listing previously-transmitted data packets and an instruction for handling additional data packets similar to the data packet entered in the socket table.

Socket tables for fast data packet transfer operations

A fast send method may be selectively implemented for certain data packets received from an application for transmission through a network interface. When the fast send method is triggered for a data packet, the application requesting transmission of the data packet may be provided a completion notice nearly immediately after the data packet is received. The fast send method may be used for data packets similar to previously-transmitted data packets for which the information in the data packet is already vetted. For example, a data packet with a similar source address, destination address, source port, destination port, application identifier, and/or activity identifier may have already been vetted. Data packets sent through the fast send method may be throttled to prevent one communication stream from blocking out other communication streams. For example, every nth data packet queued for the fast send method may be transmitted by a slow send method.

Throttling for fast data packet transfer operations

A fast send method may be selectively implemented for certain data packets received from an application for transmission through a network interface. When the fast send method is triggered for a data packet, the application requesting transmission of the data packet may be provided a completion notice nearly immediately after the data packet is received. The fast send method may be used for data packets similar to previously-transmitted data packets for which the information in the data packet is already vetted. For example, a data packet with a similar source address, destination address, source port, destination port, application identifier, and/or activity identifier may have already been vetted.

Fast data packet transfer operations

Techniques are described for mapping an emulated SSL implementation to, for example, OpenSSL. An exemplary method includes receiving a request to initiate a communication session from an application, running in an emulation environment, with a first SSL API of an emulated SSL implementation running in the emulation environment, sending the request to a communication interface process that is running in a base computing environment, wherein the emulation environment is a process running on the base computing environment, extracting, with the communication interface process, communication session information from the request, calling, with the communication interface process, procedures provided by a second SSL API of an SSL implementation, in accordance with the request, to initiate a communication session with a computing device, wherein the SSL implementation is a program running in the base computing environment, initiating the communication session with the computing device, and transferring data to the computing device.

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Roseville, MN, United States of America

John A Peters