Defining an optimal topology for a group of logical switches
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United States of America Patent
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Dec 25, 2012
Grant Date -
Mar 3, 2011
app pub date -
Aug 27, 2009
filing date -
Aug 27, 2009
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Abstract
A Layer 2 network switch fabric is partitionable into a plurality of virtual fabrics. A network switch chassis is partitionable into a plurality of logical switches, each of which may be associated with one of the virtual fabrics, including a base switch. Logical switches in multiple network switch chassis are connected by logical connections, such as logical inter-switch links that use physical connections, such as extended inter-switch links between base switches, for data transport. A topology of logical connections is established that balances competing metrics, such as robustness and scalability, while maintaining alignment with the topology of the physical connections. A topology factor allows establishing different topologies with different balances between the competing metrics.
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