WO2005008405A3 - Method and apparatus for device access fairness in fibre channel arbitrated loop systems - Google Patents

Method and apparatus for device access fairness in fibre channel arbitrated loop systems Download PDF

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Publication number
WO2005008405A3
WO2005008405A3 PCT/US2004/021982 US2004021982W WO2005008405A3 WO 2005008405 A3 WO2005008405 A3 WO 2005008405A3 US 2004021982 W US2004021982 W US 2004021982W WO 2005008405 A3 WO2005008405 A3 WO 2005008405A3
Authority
WO
WIPO (PCT)
Prior art keywords
arbitrated loop
port
loop systems
fibre channel
device access
Prior art date
Application number
PCT/US2004/021982
Other languages
French (fr)
Other versions
WO2005008405A2 (en
Inventor
Bruce Gregory Warren
William Goodwin
Carl Mies
Bruce E Johnson
Michael L White
Warren Eng
Original Assignee
Emulex Design & Mfg Corp
Bruce Gregory Warren
William Goodwin
Carl Mies
Bruce E Johnson
Michael L White
Warren Eng
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Emulex Design & Mfg Corp, Bruce Gregory Warren, William Goodwin, Carl Mies, Bruce E Johnson, Michael L White, Warren Eng filed Critical Emulex Design & Mfg Corp
Priority to EP04777828A priority Critical patent/EP1652034B1/en
Priority to JP2006518920A priority patent/JP4820752B2/en
Publication of WO2005008405A2 publication Critical patent/WO2005008405A2/en
Publication of WO2005008405A3 publication Critical patent/WO2005008405A3/en

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Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L47/00—Traffic control in data switching networks
    • H04L47/10—Flow control; Congestion control
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L12/00—Data switching networks
    • H04L12/28—Data switching networks characterised by path configuration, e.g. LAN [Local Area Networks] or WAN [Wide Area Networks]
    • H04L12/42—Loop networks
    • H04L12/427—Loop networks with decentralised control
    • H04L12/433—Loop networks with decentralised control with asynchronous transmission, e.g. token ring, register insertion
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L47/00—Traffic control in data switching networks
    • H04L47/10—Flow control; Congestion control
    • H04L47/20—Traffic policing

Abstract

The method and apparatus for switching Fiber Channel Arbitrated Loop Systems (figure 1) is provided between a plurality of Fiber Channel Loop devices (10-16). The system switches based at least in part on arbitrated loop primitives. An exemplary interconnect system (20-26) include a first port and a second port, both including port logic to monitor certain arbitrary loop primitives, a connectivity apparatus, a route determination apparatus including a routing table consisting of ALPA addresses and their associated ports, the route determination apparatus coupled to each port and the connectivity apparatus, where the connectivity apparatus creates paths between the ports based on arbitrated loop primitives (ARB, OPN and CLS).
PCT/US2004/021982 2003-07-10 2004-07-09 Method and apparatus for device access fairness in fibre channel arbitrated loop systems WO2005008405A2 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
EP04777828A EP1652034B1 (en) 2003-07-10 2004-07-09 Method and apparatus for device access fairness in fibre channel arbitrated loop systems
JP2006518920A JP4820752B2 (en) 2003-07-10 2004-07-09 Method and apparatus for device access fairness in a fiber channel arbitrated loop system

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US10/616,862 2003-07-10
US10/616,862 US7660316B2 (en) 2002-07-02 2003-07-10 Methods and apparatus for device access fairness in fibre channel arbitrated loop systems

Publications (2)

Publication Number Publication Date
WO2005008405A2 WO2005008405A2 (en) 2005-01-27
WO2005008405A3 true WO2005008405A3 (en) 2006-04-06

Family

ID=34079675

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2004/021982 WO2005008405A2 (en) 2003-07-10 2004-07-09 Method and apparatus for device access fairness in fibre channel arbitrated loop systems

Country Status (4)

Country Link
US (1) US7660316B2 (en)
EP (1) EP1652034B1 (en)
JP (1) JP4820752B2 (en)
WO (1) WO2005008405A2 (en)

Families Citing this family (87)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5978379A (en) 1997-01-23 1999-11-02 Gadzoox Networks, Inc. Fiber channel learning bridge, learning half bridge, and protocol
US7430171B2 (en) 1998-11-19 2008-09-30 Broadcom Corporation Fibre channel arbitrated loop bufferless switch circuitry to increase bandwidth without significant increase in cost
US7212534B2 (en) 2001-07-23 2007-05-01 Broadcom Corporation Flow based congestion control
US7295555B2 (en) 2002-03-08 2007-11-13 Broadcom Corporation System and method for identifying upper layer protocol message boundaries
US7630300B2 (en) * 2002-07-02 2009-12-08 Emulex Design & Manufacturing Corporation Methods and apparatus for trunking in fibre channel arbitrated loop systems
US7660316B2 (en) * 2002-07-02 2010-02-09 Emulex Design & Manufacturing Corporation Methods and apparatus for device access fairness in fibre channel arbitrated loop systems
US7664018B2 (en) * 2002-07-02 2010-02-16 Emulex Design & Manufacturing Corporation Methods and apparatus for switching fibre channel arbitrated loop devices
US7411959B2 (en) 2002-08-30 2008-08-12 Broadcom Corporation System and method for handling out-of-order frames
US7934021B2 (en) 2002-08-29 2011-04-26 Broadcom Corporation System and method for network interfacing
US7346701B2 (en) 2002-08-30 2008-03-18 Broadcom Corporation System and method for TCP offload
US7313623B2 (en) 2002-08-30 2007-12-25 Broadcom Corporation System and method for TCP/IP offload independent of bandwidth delay product
US8180928B2 (en) 2002-08-30 2012-05-15 Broadcom Corporation Method and system for supporting read operations with CRC for iSCSI and iSCSI chimney
US7397768B1 (en) 2002-09-11 2008-07-08 Qlogic, Corporation Zone management in a multi-module fibre channel switch
US7587485B1 (en) * 2002-09-19 2009-09-08 Foundry Networks, Inc. System and method for supplicant based accounting and access
US20040066095A1 (en) * 2002-10-02 2004-04-08 Hewlett-Packard Company Apparatus for controlling transmissions to reduce electromagnetic interference in an electronic system
US6886141B1 (en) * 2002-10-07 2005-04-26 Qlogic Corporation Method and system for reducing congestion in computer networks
US7782784B2 (en) * 2003-01-10 2010-08-24 Cisco Technology, Inc. Port analyzer adapter
US7899048B1 (en) 2003-01-15 2011-03-01 Cisco Technology, Inc. Method and apparatus for remotely monitoring network traffic through a generic network
US7876703B2 (en) * 2003-06-13 2011-01-25 International Business Machines Corporation System and method for enabling connection among devices in a network
US7471635B2 (en) * 2003-07-16 2008-12-30 Qlogic, Corporation Method and apparatus for test pattern generation
US7453802B2 (en) * 2003-07-16 2008-11-18 Qlogic, Corporation Method and apparatus for detecting and removing orphaned primitives in a fibre channel network
US7430175B2 (en) * 2003-07-21 2008-09-30 Qlogic, Corporation Method and system for managing traffic in fibre channel systems
US7894348B2 (en) 2003-07-21 2011-02-22 Qlogic, Corporation Method and system for congestion control in a fibre channel switch
US7466700B2 (en) * 2003-07-21 2008-12-16 Qlogic, Corporation LUN based hard zoning in fibre channel switches
US7684401B2 (en) 2003-07-21 2010-03-23 Qlogic, Corporation Method and system for using extended fabric features with fibre channel switch elements
US7420982B2 (en) * 2003-07-21 2008-09-02 Qlogic, Corporation Method and system for keeping a fibre channel arbitrated loop open during frame gaps
US7646767B2 (en) 2003-07-21 2010-01-12 Qlogic, Corporation Method and system for programmable data dependant network routing
US7406092B2 (en) * 2003-07-21 2008-07-29 Qlogic, Corporation Programmable pseudo virtual lanes for fibre channel systems
US7792115B2 (en) 2003-07-21 2010-09-07 Qlogic, Corporation Method and system for routing and filtering network data packets in fibre channel systems
US8165136B1 (en) 2003-09-03 2012-04-24 Cisco Technology, Inc. Virtual port based SPAN
US7474666B2 (en) 2003-09-03 2009-01-06 Cisco Technology, Inc. Switch port analyzers
US8050180B2 (en) * 2003-10-31 2011-11-01 Brocade Communications Systems, Inc. Network path tracing method
US7930377B2 (en) 2004-04-23 2011-04-19 Qlogic, Corporation Method and system for using boot servers in networks
DE102004027068B3 (en) * 2004-06-03 2006-02-16 Adva Ag Optical Networking Circuit for signal transmission in a network node, in particular for a channel card for a WDM optical signal transmission device
US7757009B2 (en) 2004-07-19 2010-07-13 Marvell International Ltd. Storage controllers with dynamic WWN storage modules and methods for managing data and connections between a host and a storage device
US7796627B2 (en) * 2004-08-12 2010-09-14 Broadcom Corporation Apparatus and system for coupling and decoupling initiator devices to a network using an arbitrated loop without disrupting the network
US8295299B2 (en) 2004-10-01 2012-10-23 Qlogic, Corporation High speed fibre channel switch element
US7593997B2 (en) * 2004-10-01 2009-09-22 Qlogic, Corporation Method and system for LUN remapping in fibre channel networks
US7411958B2 (en) * 2004-10-01 2008-08-12 Qlogic, Corporation Method and system for transferring data directly between storage devices in a storage area network
US20060168382A1 (en) * 2005-01-25 2006-07-27 International Business Machines Corporation Resolving conflicting requests for use of shared resources
US7813360B2 (en) * 2005-01-26 2010-10-12 Emulex Design & Manufacturing Corporation Controlling device access fairness in switched fibre channel fabric loop attachment systems
US7839865B2 (en) * 2005-01-26 2010-11-23 Emulex Design & Manufacturing Corporation Dynamically controlling fair access to a system packet interface attached switch enclosure
US7609649B1 (en) * 2005-04-26 2009-10-27 Cisco Technology, Inc. Methods and apparatus for improving network based virtualization performance
US20070248111A1 (en) * 2006-04-24 2007-10-25 Shaw Mark E System and method for clearing information in a stalled output queue of a crossbar
GB0612573D0 (en) * 2006-06-24 2006-08-02 Ibm System and method for detecting routing problems
US7843846B1 (en) * 2006-09-18 2010-11-30 Qlogic, Corporation Method and system for processing network information
US20080168161A1 (en) * 2007-01-10 2008-07-10 International Business Machines Corporation Systems and methods for managing faults within a high speed network employing wide ports
US20080168302A1 (en) * 2007-01-10 2008-07-10 International Business Machines Corporation Systems and methods for diagnosing faults in a multiple domain storage system
US20080270638A1 (en) * 2007-04-30 2008-10-30 International Business Machines Corporation Systems and methods for monitoring high speed network traffic via simultaneously multiplexed data streams
US7936767B2 (en) * 2007-04-30 2011-05-03 International Business Machines Corporation Systems and methods for monitoring high speed network traffic via sequentially multiplexed data streams
US8111610B2 (en) * 2008-01-25 2012-02-07 Emulex Design & Manufacturing Corporation Flagging of port conditions in high speed networks
JP4551947B2 (en) * 2008-05-23 2010-09-29 株式会社日立製作所 Device that manages the electronic devices that make up the storage system
US8145880B1 (en) * 2008-07-07 2012-03-27 Ovics Matrix processor data switch routing systems and methods
US8131975B1 (en) * 2008-07-07 2012-03-06 Ovics Matrix processor initialization systems and methods
US7958341B1 (en) 2008-07-07 2011-06-07 Ovics Processing stream instruction in IC of mesh connected matrix of processors containing pipeline coupled switch transferring messages over consecutive cycles from one link to another link or memory
US8327114B1 (en) 2008-07-07 2012-12-04 Ovics Matrix processor proxy systems and methods
CA2676876C (en) * 2008-08-27 2015-10-20 Maged E. Beshai Single-rotator circulating switch
US8155518B2 (en) * 2009-03-30 2012-04-10 Lsi Corporation Dynamic load balancing of fibre channel traffic
US8477791B2 (en) * 2009-05-13 2013-07-02 Avaya Inc. Method and apparatus for locally implementing port selection via synchronized port state databases maintained by the forwarding plane of a network element
US8116330B2 (en) * 2009-06-01 2012-02-14 Lsi Corporation Bridge apparatus and methods for coupling multiple non-fibre channel devices to a fibre channel arbitrated loop
CN101640622B (en) * 2009-09-07 2012-05-23 中兴通讯股份有限公司 Ethernet ring net protection method and transit node
US8792332B2 (en) 2010-09-17 2014-07-29 International Business Machines Corporation Implementing lane shuffle for fault-tolerant communication links
US8493842B2 (en) * 2010-09-17 2013-07-23 International Business Machines Corporation Implementing exchange of failing lane information for fault-tolerant communication links
EP2466486A1 (en) * 2010-12-16 2012-06-20 STMicroelectronics (Grenoble 2) SAS An arrangement
US8830838B2 (en) * 2011-09-14 2014-09-09 Hewlett-Packard Development Company, L.P. Node interface indicators
US8862802B2 (en) * 2011-12-30 2014-10-14 Bedrock Automation Platforms Inc. Switch fabric having a serial communications interface and a parallel communications interface
JP5831264B2 (en) * 2012-02-02 2015-12-09 富士通株式会社 Information processing system, information processing apparatus, and program
US9014013B2 (en) 2012-03-16 2015-04-21 Brocade Communications Systems, Inc. Packet tracing through control and data plane operations using SNMP trap commands
US9088496B2 (en) 2012-03-16 2015-07-21 Brocade Communications Systems, Inc. Packet tracing through control and data plane operations
US9582286B2 (en) * 2012-11-09 2017-02-28 Advanced Micro Devices, Inc. Register file management for operations using a single physical register for both source and result
US20150262632A1 (en) * 2014-03-12 2015-09-17 Fusion-Io, Inc. Grouping storage ports based on distance
US9736241B2 (en) 2014-06-27 2017-08-15 International Business Machines Corporation Maintenance of a fabric priority among operations within a fibre channel exchange
US9614910B2 (en) 2014-06-27 2017-04-04 International Business Machines Corporation Maintenance of a fabric priority among operations in related fibre channel exchanges
US9491240B2 (en) 2014-06-27 2016-11-08 International Business Machines Corporation Maintenance of a fabric priority during synchronous copy operations
TWI525449B (en) * 2014-09-10 2016-03-11 緯創資通股份有限公司 Server control method and chassis controller
US9960953B2 (en) * 2016-01-26 2018-05-01 Gigamon Inc. Bypass switch for redundant in-line network switch appliance
US9990160B2 (en) * 2016-06-27 2018-06-05 Altera Corporation Methods and apparatus for smart memory interface
US10630590B2 (en) * 2016-07-14 2020-04-21 Mellanox Technologies Tlv Ltd. Credit loop deadlock detection and recovery in arbitrary topology networks
JP6600752B2 (en) * 2016-09-13 2019-10-30 株式会社日立製作所 Storage system and storage system system construction method
CN106788319B (en) * 2016-12-15 2020-12-11 广东大普通信技术有限公司 Miniaturized SMD crystal oscillator
US9965655B1 (en) * 2017-04-18 2018-05-08 Erkios Systems, Inc. Port security device for computing devices and methods of operating such
US10644969B2 (en) * 2017-08-08 2020-05-05 Arista Networks, Inc. Method and system for network elements to internally probe their forwarding elements
US10644975B2 (en) 2017-08-08 2020-05-05 Arista Networks, Inc. Method and system for probing forwarding elements of network elements
CN112995614B (en) * 2019-12-13 2023-04-18 中国船舶重工集团公司第七0九研究所 Video fiber communication protocol architecture based on FPGA and method and system for checking retransmission
CN111585860B (en) * 2020-04-28 2021-12-24 杭州迪普科技股份有限公司 Method, device, storage medium and equipment for loop network convergence
CN111835411B (en) * 2020-06-24 2021-07-20 苏州浪潮智能科技有限公司 Testing method applied to optical module of white box switch
US11706150B2 (en) * 2021-04-06 2023-07-18 Apple Inc. Data encoding and packet sharing in a parallel communication interface

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6118776A (en) * 1997-02-18 2000-09-12 Vixel Corporation Methods and apparatus for fiber channel interconnection of private loop devices
US20030108058A1 (en) * 1997-01-23 2003-06-12 Black Alistair D. Fibre channel arbitrated loop bufferless switch circuitry to increase bandwidth without significant increase in cost

Family Cites Families (40)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4689708A (en) * 1985-08-02 1987-08-25 Bbc Brown, Boveri & Co., Ltd. Zone protective directional relay scheme
US5535035A (en) * 1994-09-15 1996-07-09 International Business Machines Corporation Optical fiber ring communications system and communications method
US5619497A (en) * 1994-12-22 1997-04-08 Emc Corporation Method and apparatus for reordering frames
US5754549A (en) * 1995-12-05 1998-05-19 International Business Machines Corporation Inexpensive two-way communications switch
US5751715A (en) * 1996-08-08 1998-05-12 Gadzoox Microsystems, Inc. Accelerator fiber channel hub and protocol
US5991891A (en) * 1996-12-23 1999-11-23 Lsi Logic Corporation Method and apparatus for providing loop coherency
US6185203B1 (en) 1997-02-18 2001-02-06 Vixel Corporation Fibre channel switching fabric
US6504817B2 (en) * 1997-03-31 2003-01-07 Hewlett-Packard Company Fiber channel arbitrated loop dynamic loop sizing
US6000020A (en) * 1997-04-01 1999-12-07 Gadzoox Networks, Inc. Hierarchical storage management from a mirrored file system on a storage network segmented by a bridge
GB2342021B (en) * 1997-11-17 2002-12-31 Seagate Technology Method and dedicated frame buffers for receiving frames
US6061360A (en) 1998-02-24 2000-05-09 Seagate Technology, Inc. Method and apparatus for preserving loop fairness with dynamic half-duplex
US6324181B1 (en) * 1998-04-16 2001-11-27 3Com Corporation Fibre channel switched arbitrated loop
US6314488B1 (en) * 1998-05-12 2001-11-06 Crossroads Systems, Inc. System for segmenting a fibre channel arbitrated loop to a plurality of logical sub-loops using segmentation router as a master to cause the segmentation of physical addresses
US6272131B1 (en) * 1998-06-11 2001-08-07 Synchrodyne Networks, Inc. Integrated data packet network using a common time reference
US6876653B2 (en) * 1998-07-08 2005-04-05 Broadcom Corporation Fast flexible filter processor based architecture for a network device
US6396832B1 (en) * 1998-09-04 2002-05-28 3Com Corporation Method and apparatus for optimizing a switched arbitrated loop for maximum access fairness
US6898184B1 (en) * 1998-11-15 2005-05-24 Hewlett-Packard Development Company, L.P. Private arbitrated loop self-test management for a fibre channel storage enclosure
US6747984B1 (en) * 1998-12-18 2004-06-08 Lsi Logic Corporation Method and apparatus for transmitting Data
US6529963B1 (en) * 1998-12-29 2003-03-04 Lsi Logic Corporation Methods and apparatus for interconnecting independent fibre channel fabrics
US6459701B1 (en) * 1999-08-06 2002-10-01 Emulex Corporation Variable access fairness in a fibre channel arbitrated loop
IES20010395A2 (en) * 2000-07-26 2002-02-06 Richmount Computers Ltd Crosspoint switch for a fibre channel arbitrated loop
US6981078B2 (en) * 2000-08-07 2005-12-27 Computer Network Technology Corporation Fiber channel architecture
US6975590B2 (en) * 2000-09-07 2005-12-13 Eurologic Systems Limited Fiber-channel arbitrated-loop split loop operation
US6999460B1 (en) * 2000-10-16 2006-02-14 Storage Technology Corporation Arbitrated loop port switching
US6915429B1 (en) * 2000-11-16 2005-07-05 International Business Machines Corporation System and method for fiber channel remote activation and enhanced security
US6947393B2 (en) * 2001-03-30 2005-09-20 Hewlett-Packard Development Company, L.P. Segmented fiber channel arbitrated loop and intra-loop routing system
US7215680B2 (en) * 2001-07-26 2007-05-08 Nishan Systems, Inc. Method and apparatus for scheduling packet flow on a fibre channel arbitrated loop
US7809852B2 (en) * 2001-07-26 2010-10-05 Brocade Communications Systems, Inc. High jitter scheduling of interleaved frames in an arbitrated loop
US7016299B2 (en) * 2001-07-27 2006-03-21 International Business Machines Corporation Network node failover using path rerouting by manager component or switch port remapping
US6804245B2 (en) * 2001-08-17 2004-10-12 Mcdata Corporation Compact, shared route lookup table for a fiber channel switch
US6532212B1 (en) * 2001-09-25 2003-03-11 Mcdata Corporation Trunking inter-switch links
US7385982B2 (en) * 2002-04-09 2008-06-10 Next Generation Systems, Inc. Systems and methods for providing quality of service (QoS) in an environment that does not normally support QoS features
US20040076428A1 (en) * 2002-05-20 2004-04-22 The Boeing Company Form existing fibers into a fibre channel-arbitrated loop
US7397788B2 (en) 2002-07-02 2008-07-08 Emulex Design & Manufacturing Corporation Methods and apparatus for device zoning in fibre channel arbitrated loop systems
US7630300B2 (en) * 2002-07-02 2009-12-08 Emulex Design & Manufacturing Corporation Methods and apparatus for trunking in fibre channel arbitrated loop systems
US7660316B2 (en) * 2002-07-02 2010-02-09 Emulex Design & Manufacturing Corporation Methods and apparatus for device access fairness in fibre channel arbitrated loop systems
US7664018B2 (en) * 2002-07-02 2010-02-16 Emulex Design & Manufacturing Corporation Methods and apparatus for switching fibre channel arbitrated loop devices
US7382790B2 (en) * 2002-07-02 2008-06-03 Emulex Design & Manufacturing Corporation Methods and apparatus for switching fibre channel arbitrated loop systems
US7352706B2 (en) * 2002-09-16 2008-04-01 Finisar Corporation Network analysis scalable analysis tool for multiple protocols
US7343524B2 (en) * 2002-09-16 2008-03-11 Finisar Corporation Network analysis omniscent loop state machine

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20030108058A1 (en) * 1997-01-23 2003-06-12 Black Alistair D. Fibre channel arbitrated loop bufferless switch circuitry to increase bandwidth without significant increase in cost
US6118776A (en) * 1997-02-18 2000-09-12 Vixel Corporation Methods and apparatus for fiber channel interconnection of private loop devices

Also Published As

Publication number Publication date
US20040085994A1 (en) 2004-05-06
EP1652034A2 (en) 2006-05-03
EP1652034B1 (en) 2011-12-28
WO2005008405A2 (en) 2005-01-27
US7660316B2 (en) 2010-02-09
EP1652034A4 (en) 2008-01-16
JP2007529150A (en) 2007-10-18
JP4820752B2 (en) 2011-11-24

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