Method of merging networks across a common backbone network

Details Method of merging networks across a common backbone network Method of merging networks across a common backbone network

1992-05-13

1994-05-17

Olms, Douglas W.

Multiplex communications

Wide area network

Packet switching

370 941, H04J 302

Patent

active

053134656

ABSTRACT:
A method of merging networks across a common backbone network in which destinations are grouped into domains based on needs of network users to communicate with one another. Domain information is added to the level one routing control packets transmitted by the grouped destinations to identify the logical address (destination number coupled with domain number) of a specific destination. Additionally, routers in the network are configured with mapping information that relates the destination number of each associated destination with its logical address. Filtering information may be included in the configuration of the level one and level two routers. Filtering information identifies domains that associated destinations may transmit information to or receive information from. With filtering information, system routers can be configured to announce the reachability of specific destinations in selected domains based on overall system considerations.

REFERENCES:
patent: 4706081 (1987-11-01), Hart et al.
patent: 5046065 (1991-09-01), Goertz
patent: 5088032 (1992-02-01), Bosack
patent: 5134610 (1992-07-01), Shand et al.
Fault-Tolerant Broadcast of Routing Information, R. Perlman, North-Holland Computer Networks 7 (1983).
An Algorithm for Distributed Computation of a Spanning Tree in an Extended LAN, R. Perlman, Digital Equipment Corporation, 1984.
Enhanced AppleTalk Phase 2 Routing, Preliminary Specification and Internet Draft (RFC), Apple Computer, Inc., Nov. 27, 1991.

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