Logical star topologies for non-star networks

Details Logical star topologies for non-star networks Logical star topologies for non-star networks

2007-09-11

2007-09-11

Pham, Chi (Department: 2616)

Multiplex communications

Pathfinding or routing

Switching a message which includes an address header

C370S425000

Reexamination Certificate

active

10298704

ABSTRACT:
A logical star architecture imposed on an underlying non-star network, for example a Virtual Path Ring (VPR), enhances a mesh protocol with an automatic method for Virtual Path ID (VPI) generation. The VPIs are used by the mesh protocol's inherent routing function to effect automatic configuration at installation, automatic reconfiguration at node updates, and automatic reconfiguration for protection switching. The imposition of the logical star architecture on a VPR reduces node-to-node switching costs (e.g., delay, as well as memory and processing costs) since all nodes in a logical star topology are at most two logical hops away. The logical star also conserves virtual path address space relative to a fully configured ring. Additionally, the imposition of the logical star architecture allows existing star functions to be deployed on the underlying network. Finally, when the underlying architecture is a ring, the protection advantages of ring networks can be preserved.

REFERENCES:
patent: 2002/0167899 (2002-11-01), Thompson et al.
patent: 2004/0213564 (2004-10-01), Sakano et al.

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