Lucent Technologies Inc.

At&t Bell Laboratories

Avaya Technology LLC

American Telephone and Telegraph, Co.

At&t Information Systems Inc.

Robert William Gebhardt

Gary J Grimes

Andrew D Franklin

James J Ferenc

Barbara Patrice Havens

Gabe A Sellers, Iii

Edward B Morgan, Jr

The invention is directed to an architecture that includes a first queue , a first queue reader that reads data entities in the first queue, and a first queue writer that writes data entities to the first queue. The architecture is able to periodically set one or more backup administration parameters equal to administration parameter(s) associated with the first queue and, when the first queue is restored, copy data entities from backup storage to the first queue and set the administration parameter(s) to the corresponding backup administration parameter(s).

System and method for using multi-headed queues for bookmarking in backup/recover scenarios

An arrangement for transmitting data messages from a source to a plurality of destinations. A single file set stores messages from the source, but a plurality of processes transmits the messages to the destinations. A particular destination can receive the messages by having a process for such transmission. Advantageously, the source need not have a record of the identity or number of the destinations.

Reliable multi-cast queue

A distributed control arrangement for a multi-mode circuit-switching or circuit- and packet-switching system avoids disadvantages attendant to a centralized control center and offers flexibility in the sourcing of communication-routing information. The switching system communicatively interconnects a plurality of communication endpoints, such as PBXs, and includes a plurality of circuit-switching units interconnected with each other and with the endpoints by at least one communication medium. Control is effected through a plurality of logical links of the LAPD communication protocol, one of which extends through the medium between each pair of adjacent units and of adjacent unit and endpoint. Each unit is responsive to receipt of a messeage that specifies a route of a circuit-switched communication path through the system, including through the receiving unit. The message contains a plurality of address bytes each one of which specifies a segment of the route through the system: the bytes specify a sequence of system nodes through which the path extends. In response to receiving the message over a first link that extends to the receiving unit from another unit or an endpoint, the receiving unit establishes a communication path for the communication from the adjacent unit or endpoint from which the first link extends, through the receiving unit, and to an adjacent unit or endpoint-en-route of the communication. The individual unit then also sends the received message to the adjacent en-route unit or endpoint, over a second link which extends between the individual unit and the adjacent en-route unit or endpoint.

Control architecture of a multi-node circuit- and packet-switching system

Apparatus for and a method of inserting circuit switch information and packetized data into different time slots of a time division multiplexed bus. A memory having a location individual to each time slot is written with information specifying whether the time slot individual to each location is to serve circuit switch information or packet data. The readout of each memory location during the occurrence of it's associated time slot controllably effects the application of either the circuit switch information or the packet data to the bus. Packet data can be inserted into each time slot not currently being used by the circuit switch. A special information bit is inserted into each time slot to specify whether the remainder of the bits of the time slot represents circuit switch or packet information. The information bit is used by receiving apparatus to steer the bits of each time slot to either a receiving circuit switch or a receiving packet switch.

Combined circuit switch and packet switching system

Growing community of inventors

Boulder, CO, United States of America

Robert William Gebhardt