Bay Networks, Inc.

Nortel Networks Corporation

William M Salkewicz

Ross W Callon

Eric S Crawley

Zhaohui Zhang

Andrew H Smith

Asher Waldfogel

Cheryl A Sanchez

A system for providing quality of service routing functions in a connectionless network having multiple nodes. The system generates a link resource advertisement for each node in the network. Each link resource advertisement includes information regarding link resources available on a particular node in the network. The system also generates resource reservation advertisements for each node in the network. Each resource reservation advertisement includes information regarding a particular node's current reservations for a data flow. Network paths are calculated in response to a quality of service request. The calculations are performed based on information contained in the link resource advertisements and resource reservation advertisements.

Method and apparatus for providing quality of service routing in a

A method for synchronizing a first database with a second database in which the first database contains a plurality of database records. The first database is divided into a plurality of segments. Each of the segments contains at least one database record. The segments are transmitted sequentially from the first database to the second database until all segments have been transmitted to the second database.

Method and apparatus for synchronizing multiple copies of a database

A system for providing explicit routing functions in a connectionless network. A specific router selects a path through the connectionless network to a destination. Explicit routing advertisements are generated by the specific router and contain information regarding the selected path. Routing state is installed according to information contained in the explicit routing advertisements. The explicit routing advertisements are forwarded to each next hop router. Each next hop router installs routing state, generates the explicit routing advertisement, and forwards the explicit routing advertisement to further propagate the routing information.

System for generating explicit routing advertisements to specify a

A system for managing virtual circuits and determining proper routing of packets in a network environment. The network includes a connection-oriented subnetwork and an arrangement of routers coupled to the connection-oriented subnetwork. The system determines paths to each exit router by considering all possible paths through the connection-oriented subnetwork. The system also determines paths to each exit router by considering existing virutal circuits through the connection-oriented subnetwork. Finally, the system determines and establishes a most beneficial new virtual circuit for the network. Additionally, the rate at which new virtual circuits are established may be regulated by the system.

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Chelmsford, MA, United States of America

William M Salkewicz