Telcordia Technologies

About: Telcordia Technologies is a based out in . It is known for research contribution in the topics: Network packet & Node (networking). The organization has 3097 authors who have published 4737 publications receiving 237882 citations.

The datacycle architecture for very high throughput database systems

Abstract: The evolutionary trend toward a database-driven public communications network has motivated research into database architectures capable of executing thousands of transactions per second. In this paper we introduce the Datacycle architecture, an attempt to exploit the enormous transmission bandwidth of optical systems to permit the implementation of high throughput multiprocessor database systems. The architecture has the potential for unlimited query throughput, simplified data management, rapid execution of complex queries, and efficient concurrency control. We describe the logical operation of the architecture and discuss implementation issues in the context of a prototype system currently under construction.

A network-based telephone system providing coordinated voice and data delivery

Abstract: A method of processing a phone call from a caller (112) in a network-based telephone system (100), the network-based telephone system (100) including a plurality of switches (108) and an intelligent peripheral (IP) (104) for interfacing the plurality of switches (108) to a service control point (SCP) (102). When a phone call is received at one of the plurality of switches (108), the call is sent to the IP (104). The IP (104) then requests that the SCP (102) perform a call processing request. Service logic within the SCP (102) is accessed in order to process the phone call according to the call processing request. The service logic then requests and receives account information from one or more external systems (106). The phone call is routed to a selected telephone (117) based on the account information received from the one or more external systems (106). The received account information is routed to the selected telephone (117).

Dynamic host configuration and network access authentication

Abstract: According to some embodiments, systems and methods for binding dynamic host configuration and network access authentication are provided related to, inter alia, interactions between a PAA (PANA-server) and a DHCP (Dynamic Host Configuration Protocol) server (DHCP server), such as, e g, for synchronization between the PANA SA state and the DHCP SA state, such as, e g, maintaining synchronization when a connection is lost In some embodiments, systems and methods for binding network bridge and network access authentication (Network Access Authenticator) are also provided related to, inter alia, interactions between a PAA and a layer-2 switch, such as, e g, for avoiding service thefts and the like (such as, e g, MAC address and/or IP address spoofing) in the context of, e g, the above In some other embodiments, systems and methods for bootstrapping multicast security from network access authentication protocol are also provided related to, inter alia, key management for protected IP multicast streams, such as, e g, to avoid IP multicast streams unnecessarily received and/or processed by unauthorized receivers connected to the same layer 2 segment as authorized receivers

On integer points in polyhedra

Abstract: We give an upper bound on the number of vertices ofP I , the integer hull of a polyhedronP, in terms of the dimensionn of the space, the numberm of inequalities required to describeP, and the size ϕ of these inequalities. For fixedn the bound isO(m n ϕ n− ). We also describe an algorithm which determines the number of integer points in a polyhedron to within a multiplicative factor of 1+e in time polynomial inm, ϕ and 1/e when the dimensionn is fixed.

Visual programming of telephone network call processing logic

Abstract: A system for creating and modifying intelligent tele-phone network call processing logic trees which can be custom-ized for individual customers and created in a user-friendly vis-ual environment (10, 15, Fig. 3-5). Service primitives are de-fined as logical graph nodes (20, Fig. 2, Fig. 3) which can be visually assembled into logic trees (Fig. 5) which represent the service logic flow and which provide default values for all ser-vice options. Higher level nodes, assembled from a plurality of service primitives, can likewise be defined and stored (12, 13, 19) for later use as entities in defining yet further call process-ing logic trees. These call processing logic trees are interpreted to allow the service control point computers (17) to implement the services in the switched telephone network (18) by sequen-tially executing the specified call processing primitives. A lib-rary (12, 13, 19) of defined nodes and defined node assemblies which represent service features can thus be made available to permit graphical manipulation into complete logic trees repres-enting new services. These logic trees are then interpreted by generic programs in the service control point to actually pro-vide the described services.