At&t Intellectual Property I, LP

At+t Corp.

Other

Servicenow, Inc.

Atlassian US, Inc.

Atlassian Inc.

Han Q Nguyen

Huajin Jeng

Samir S Saad

Douglas M Nortz

Kadangode K Ramakrishnan

Charles Robert Kalmanek, Jr

James Uttaro

Sunil Maloo

John T Mulligan

John W Garrett

Simon S Zelingher

Sean E Carolan

Pravin Kumar Johri

Carsten Lund

Brian Dean Freeman

Ashley Flavel

Margaret T Chiosi

Elysia C Tan

Oliver Spatscheck

Tuan Duong

Gregory J Smith

Steven Howard Nurenberg

Jacobus Erasmus Van Der Merwe

Leah L Zhang

Kevin L D'Souza

Richard Kwapniewski

Don J Moloney

Ronnie R Kulper

Diana Lynn Toll-Verry

Ali Murat Iloglu

David John Knight

Mai-Uyen Thi Nguyen

Charles Robert Kalmanek

Kaustubh Joshi

Thomas Bradley Scholl

Larry A Russell

James J Mansell

John Jutten Lawser

Gerald L Hoover

Abhigyan

Edward Daniels

Tayfun Cataltepe

Carl E Betta

David Crawford Gibbon

Behzad Shahraray

Andrea Basso

Kathleen S Meier-Hellstern

Simon Tse

Yaron Koral

Thomas Spencer, Iv

Kang Xi

Mark W Altom

Steven A Monetti

Herani Soewarto Brotman

Richard Koch

Adrian Cepleanu

Sudhir Pendse

David Parisi

Lawrence E Murphy

Steven J Solomon

Charles R Kalmanek

Concepts and technologies are disclosed herein for providing and using a software defined network controller. A software defined network controller can be provided by a computing system that includes a processor. A service model that represents a service can be obtained. A network model that represents network resources that support the service can be obtained. Resources that support the service can be determined. Templates can be accessed to identify templates that relate to the resources. The templates identified can be assembled to obtain a template-based representation of the service. The template-based representation can be executed to determine if the service is ready for deployment.

Software defined network controller

A content distribution network includes a first server in communication with an anycast server that provides content via a unicast signal, and with a multicast server that provides the content via a multicast signal. The first server is configured to receive a list of source addresses associated with the content, and to provide a metadata file including an anycast Internet protocol address of the anycast server from the list of source addresses as an Internet protocol address of the content in response to a first request for the content. When the number of client devices requesting the content exceeds a first threshold, the first server receives an updated list of sources including a multicast Internet protocol address of a multicast server, and provides the multicast Internet protocol address of the multicast server as the Internet protocol address of the content in the metadata file.

System and method for dynamically adapting network delivery modes of content

A system for closed loop prefix management for white boxes includes a network device, a route reflector coupled to the network device, a software defined network controller coupled to the route reflector and the network device, and a prefix usage analyzer in the software defined network controller. The prefix usage analyzer determines usage attributes of prefixes and identifies the prefixes with a predetermined usage attribute. The software defined network controller instructs a network controller in the network device to store the prefixes with the predetermined usage attributes in a table in the network device.

Closed loop prefix management and controller for whiteboxes

According to one aspect disclosed herein, a system can include a set of node peers, including a first subset implemented in software and a second subset implemented in hardware. The first subset can include a software node. The second subset can include a hardware node that includes a hardware cache, a processor, and a memory that stores computer-executable instructions. The hardware node can receive, from a network, a packet, and can determine if data that identifies a path associated with the packet is stored in the hardware cache. If not, the hardware node can query the software node to identify the path associated with the packet, and can receive, in response from the software node, the data that identifies the path, which then can be stored in the hardware cache. The hardware node can forward, along the path, the packet to a network element.

Extending distributed hash table-based software network functions to switching hardware

Methods and systems may use a software-defined network (SDN) based approach for interworking different types of nodes. In an example, an SDN controller may include components that assist in building pseudowires across Ethernet virtual private network (EVPN) nodes and Border gateway protocol-virtual private local area network (LAN) service (BGP-VPLS) nodes.

Virtual private network interworking

Concepts and technologies are disclosed herein for management of forwarding tables at edge routers. A processor that executes a software defined networking controller can select an edge router associated with a networking environment. The edge router can access or use a forwarding table. The processor can obtain routing information associated with the edge router. The routing information can include forwarding table contents associated with the forwarding table and next hop information that can indicate communication paths associated with the edge router. The processor can analyze the routing information to determine next hops associated with the edge router, generate a next hop graph that represents the next hops, and initiate updating of the forwarding table such that the forwarding table only includes data that corresponds to the next hops.

Management of forwarding tables at edge routers

Methods, apparatus, and articles of manufacture to provide a multicast virtual private network (MVPN) are disclosed. Example methods to transmit multicast data in a network disclosed herein include monitoring, with a first network node, a multicast data flow to determine a characteristic for triggering a switch from a first logical topology for the multicast data flow to a second logical topology for the multicast data flow. Disclosed example methods also include, after the switch to the second logical topology, accessing a multicast data packet associated with a first multicast route generated for the multicast data flow from a second network node, and transmitting a first replication of the multicast data packet to a third network node via a unicast path, the first replication of the multicast data packet to include a first label provided by the third network node to identify the first multicast route.

Methods, apparatus, and articles of manufacture to provide a multicast virtual private network (MVPN)

A network is configured to utilize available bandwidth to conduct bulk data transfers without substantially affecting the successful transmission of time-sensitive traffic in the network. In order to avoid this interference, the packets carrying data for bulk data transfers are associated with a low priority class such that the routers of the network will preferentially drop these packets over packets associated with the normal traffic of the network. As such, when the normal traffic peaks or there are link failures or equipment failures, the normal traffic is preferentially transmitted over the bulk-transfer traffic and thus the bulk-transfer traffic dynamically adapts to changes in the available bandwidth of the network. Further, to reduce the impact of dropped packets for the bulk-transfer traffic, the packets of the bulk-transfer traffic are encoded at or near the source component using a loss-resistant transport protocol so that the dropped packets can be reproduced at a downstream link.

Bulk data transport in a network

A content distribution network includes first and second controllers, and multicast enabled routers. The first controller is configured to select a multicast channel for distributing content, to determine that the content has a geographic restriction associated with a restricted area in the content distribution network, to link an exclusion policy for the content to the multicast channel while the multicast channel provides the content, and to deny a request for the content from a client system within the restricted area based on the exclusion policy. The second controller is configured to distribute the exclusion policy to the multicast enabled routers including a first router configured to store the exclusion policy, and to ignore a multicast join message from the client system within the restricted area based on the exclusion policy.

System and method for controlling multicast geographic distribution

A user-defined virtual private cloud computing network is provided that includes a user interface for selecting a plurality of network connectivity features for designing the user-defined virtual private cloud computing network. The virtual private cloud computing network includes tangible storage elements and tangible computing elements selected from a cloud computing network service provider using the user interface, using the user interface each network. The tangible storage elements and tangible computing elements are connected in accordance with network element configuration statements that instantiate actions particular to defined network connectivity features in accordance with defined usage rules. The virtual provide cloud computing network is configured and implemented in accordance with the selected network connectivity features using the tangible storage elements and tangible computing elements.

Network connectivity wizard to support automated creation of customized configurations for virtual private cloud computing networks

Growing community of inventors

Malboro, NJ, United States of America

Han Q Nguyen