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Partitioning of Switches and Fabrics into Logical Switches and Fabrics

a technology of switches and fabrics, applied in the field of network fabric virtualization, can solve problems such as the scalability of large layer b>2/b>) fabrics, and achieve the effect of reducing the scalability of large layer b>2/b> fabrics

Inactive Publication Date: 2011-04-14
AVAGO TECH INT SALES PTE LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Scalability of large Layer 2 (L2) fabrics has become a problem, as end users require ever-larger L2 fabrics, while also desiring consolidation of SAN islands and better tools for managing increasingly more complex SANs and other switch-based fabrics.

Method used

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  • Partitioning of Switches and Fabrics into Logical Switches and Fabrics
  • Partitioning of Switches and Fabrics into Logical Switches and Fabrics
  • Partitioning of Switches and Fabrics into Logical Switches and Fabrics

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Embodiment Construction

[0044]In the following description, for purposes of explanation, numerous specific details are set forth in order to provide a thorough understanding of the invention. It will be apparent, however, to one skilled in the art that the invention can be practiced without these specific details. In other instances, structure and devices are shown in block diagram form in order to avoid obscuring the invention. References to numbers without subscripts are understood to reference all instance of subscripts corresponding to the referenced number. Moreover, the language used in this disclosure has been principally selected for readability and instructional purposes, and may not have been selected to delineate or circumscribe the inventive subject matter, resort to the claims being necessary to determine such inventive subject matter.

[0045]Although some of the following description is written in terms that relate to software or firmware, embodiments can implement the features and functionalit...

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Abstract

A Layer 2 network switch is partitionable into a plurality of switch fabrics. The single-chassis switch is partitionable into a plurality of logical switches, each associated with one of the virtual fabrics. The logical switches behave as complete and self-contained switches. A logical switch fabric can span multiple single-chassis switch chassis. Logical switches are connected by inter-switch links that can be either dedicated single-chassis links or logical links. An extended inter-switch link can be used to transport traffic for one or more logical inter-switch links. Physical ports of the chassis are assigned to logical switches and are managed by the logical switch. Legacy switches that are not partitionable into logical switches can serve as transit switches between two logical switches.

Description

TECHNICAL FIELD[0001]The present invention relates to the field of network fabric virtualization and in particular to virtualization of network fabrics through virtualization of switches.BACKGROUND ART[0002]Switch-based network fabrics have been a major part of the development of storage area networks (SANs) in modern networking environments. Scalability of large Layer 2 (L2) fabrics has become a problem, as end users require ever-larger L2 fabrics, while also desiring consolidation of SAN islands and better tools for managing increasingly more complex SANs and other switch-based fabrics.SUMMARY OF INVENTION[0003]In accordance with one embodiment, a method of managing a network switch comprises partitioning a first network switch into a first plurality of logical switches, and managing each of the plurality of logical switches independent of each other of the plurality of the first plurality of logical switches. In accordance with a second embodiment, a method of partitioning networ...

Claims

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Application Information

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IPC IPC(8): H04L12/56H04L45/58H04L45/586
CPCH04L45/583H04L67/1097H04L45/586H04L45/66
Inventor GNANASEKARAN, SATHISH KUMARKOLLU, BADRINATHHAMMONS, RICHARD L.VADIVELU, RAMKUMARRETTER, DAN NORBERTZHOU, JIANQIANGRAJARATHINAM, PONPANDIARAJCHUNG, DANIEL JI YONG PARK
Owner AVAGO TECH INT SALES PTE LTD
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