Plexxi Inc.

Juniper Networks, Inc.

Optumi, Inc.

Denis deRuijter

Anand Srinivas

David J Husak

Steve Onishi

Jerome Pascal Moisand

A system for identifying networked equipment, capable of running a computer software application, that satisfies a user selected trade-off between usage cost and performance. The system maintains a store of user selected maximum usage cost and information corresponding to a trade-off between networked equipment usage cost and performance, and maintains a store of currently available capability information associated with the networked equipment, and a networked controller operates on the stored information to identify one or more instances of the equipment that satisfies the trade-off by determining a total cost-performance factor value for each a plurality of the networked equipment.

Using cost and performance constraint information to identify networked equipment on which to place a computer software application

A system for identifying networked equipment on which to operate a computer software application has a store of currently available capability information associated with equipment connected to a communication network, a store of software application operational requirement information and an intent driven controller. The controller operates to identify networked equipment on which to run the software application by comparing application requirement information to currently available capability information associated with instances of the networked equipment looking for capability that satisfies the operational requirements.

Intent driven controller for provisioning software applications on networked equipment

Data center network architectures that can reduce the cost and complexity of data center networks. The data center network architectures can employ optical network topologies and optical nodes to efficiently allocate bandwidth within the data center networks, while reducing the physical interconnectivity requirements of the data center networks. The data center network architectures also allow computing resources within data center networks to be controlled and provisioned based at least in part on a combined network topology and application component topology, thereby enhancing overall application program performance.

Data center network architecture

Systems and methods of affinity modeling in data center networks that allow bandwidth to be efficiently allocated with the data center networks, while reducing the physical interconnectivity requirements of the data center networks. Such systems and methods of affinity modeling in data center networks further allow computing resources within the data center networks to be controlled and provisioned based at least in part on the network topology and an application component topology, thereby enhancing overall application program performance.

Affinity modeling in a data center network

Systems and methods of affinity modeling in data center networks that allow bandwidth to be efficiently allocated within the data center networks, while reducing the physical interconnectivity requirements of the data center networks. Such systems and methods of affinity modeling in data center networks further allow computing resources within the data center networks to be controlled and provisioned based at least in part on the network topology and an application component topology, thereby enhancing overall application program performance. Using an affinity topology describing requirements for communications between applications and a network topology, network nodes are configured to satisfy multicast dispersion and latency requirements associated with communications between applications.

Configuring a computer network to satisfy multicast dispersion and latency requirements using affinity and network topologies

A data center network that employs an optical network having optical nodes arranged in a ring topology uses a method of topography discovery and maintenance so that connectivity can be maintained and node failures, link failures, end stations being discovered on the network, etc., can be handled without impacting network performance.

Method and apparatus for connectivity control in a data center network

Data center networks that employ optical network topologies and optical nodes to efficiently allocate bandwidth within the data center networks, while reducing the physical interconnectivity requirements of the data center networks. Such data center networks employ at least one central controller for controlling and provisioning computing resources within the data center networks based at least in part on the network topology and an application component topology, thereby enhancing overall application program performance.

Control and provisioning in a data center network with at least one central controller

Data center networks that employ optical network topologies and optical nodes to efficiently allocate bandwidth within the data center networks, while reducing the physical interconnectivity requirements of the data center networks. Such data center networks provide a hierarchy of control for controlling and provisioning computing resources within the data center networks based at least in part on the network topology and an application component topology, thereby enhancing overall application program performance.

Hierarchy of control in a data center network

A communication session over a network is facilitated. A signaling datagram from a source device having a source identity may be intercepted by a network device, and a response datagram may be generated for instructing the source device to send a subsequent datagram to the network device. The signaling datagram may be forwarded to a SIP server, where the SIP server associates the source identity with the network device acting on behalf of the source device, and where the SIP server operates to connect a destination device with the source device to establish a communication session over the network. The subsequent datagram may be received from the source device, and the subsequent datagram may be made available to the destination device via the network.

Monitoring datagrams in a data network

An intermediate device is described that reduces the number of signaling registration requests and responses flowing across a network. For example, a load reducing device intercepts the registration requests, filters a portion of the requests, and outputs autonomous response for each filtered registration request. The load reducing device forwards an unfiltered portion of the registration requests sufficient to maintain registration of the requesting device. The autonomous responses keep a logical pinhole in a firewall in an open state so that the registering device behind the firewall can receive session initiation invitations. At the same time, filtering the portion of the requests reduces the number of requests and responses that traverse any intermediate networks between the load reducing device and an intended recipient of the request.

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Harvard, MA, United States of America

Denis deRuijter