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High availability and multipathing for fibre channel over Ethernet

A technology of fiber channel and Ethernet, which is applied in the selection device of multiplexing system, data exchange network, data exchange through path configuration, etc., and can solve the problems such as not being easy to upgrade

Inactive Publication Date: 2010-09-01
BROCADE COMMUNICATIONS SYSTEMS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Such interruptions in communication are undesirable, and existing methods cannot be easily upgraded

Method used

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  • High availability and multipathing for fibre channel over Ethernet
  • High availability and multipathing for fibre channel over Ethernet
  • High availability and multipathing for fibre channel over Ethernet

Examples

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Embodiment Construction

[0015] figure 1 An exemplary computing and storage architecture is shown that includes a local area network (LAN) 100 and a storage area network (SAN) 102 . Local area network (LAN) 100 provides communication links between a number of devices (eg, workstations 116 and hosts 114). Connections within LAN 100 are provided through switches 106 , 107 and 108 . LAN 100 is assumed to be a network of related enterprises having a number of different segments, although any LAN configuration may be employed.

[0016] A storage area network (SAN) 102 exists within LAN 100 and provides communication links between hosts 110 and storage units 112, routing, and other SAN functions. SAN 102 includes a plurality of switches, such as switches 101 , 103 and 104 . Switches 101, 103, and 104 may be configured, for example, as a set of blade assemblies plugged into a chassis, as a frameable or stackable module or other device configuration. In one embodiment, the backplane has a rear or midplane...

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Abstract

A physical Fibre Channel over Ethernet (FCoE) switch defines a multipath virtual FCoE switch to provide uninterrupted storage access between N_PORTs of an FCoE host and a Fibre Channel (FC) storage target, for example, in response to an F_PORT failure. Through the multipath virtual FCoE switch, the fabric is configured with multiple physical paths available between the FCoE hosts and FC targets. The multipath virtual FCoE switch is defined between or among multiple physical FCoE switches coupled to the Ethernet fabric. One of the F_PORTs is designated as being in the primary FCoE path, while any other F_PORTs sharing the virtual FCoE switch are reserved for standby paths in case the primary FCoE path is disabled. When a failure to a primary FCoE path is detected, a standby path is promoted to become a new primary FCoE path and subsequent traffic is routed in both directions through the new primary FCoE path.

Description

Background technique [0001] A storage area network (SAN) can be implemented as a high-speed, dedicated network that interconnects different kinds of data storage devices with associated data servers on behalf of a large number of network users. Typically, a storage area network includes high-performance switches that comprise a portion of the computing resources of an enterprise's entire network. Storage area networks are typically aggregated in close geographic proximity to other computing resources (eg, mainframe computers), but can also be extended to remote locations for backup and archival storage using wide area network carrier technology. Fiber Channel networking is typically used in SANs, although other communication technologies may also be employed, including Ethernet and IP-based network storage standards (eg, iSCSI, FCIP (Fibre Channel over IP), etc.). [0002] As used herein, the term "Fibre Channel" refers to the Fiber Channel (FC) family of standards (developed...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L12/24H04L12/28H04Q11/00H04L12/02H04L45/02
CPCH04L49/357H04L49/70H04L45/021H04L67/1097H04L45/02H04L49/557H04L2012/5605
Inventor 苏雷什·沃布比利塞蒂
Owner BROCADE COMMUNICATIONS SYSTEMS
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