WO2001043354A3 - Mirroring in a stacked network switch configuration - Google Patents

Mirroring in a stacked network switch configuration Download PDF

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Publication number
WO2001043354A3
WO2001043354A3 PCT/US2000/033133 US0033133W WO0143354A3 WO 2001043354 A3 WO2001043354 A3 WO 2001043354A3 US 0033133 W US0033133 W US 0033133W WO 0143354 A3 WO0143354 A3 WO 0143354A3
Authority
WO
WIPO (PCT)
Prior art keywords
mirroring
network switch
switch configuration
stacked network
data
Prior art date
Application number
PCT/US2000/033133
Other languages
French (fr)
Other versions
WO2001043354A2 (en
Inventor
Mohan Kalkunte
Shiri Kadambi
Shekhar Ambe
Anders Johnson
Original Assignee
Broadcom Corp
Mohan Kalkunte
Shiri Kadambi
Shekhar Ambe
Anders Johnson
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
Priority claimed from US09/461,719 external-priority patent/US6813268B1/en
Application filed by Broadcom Corp, Mohan Kalkunte, Shiri Kadambi, Shekhar Ambe, Anders Johnson filed Critical Broadcom Corp
Priority to DE60010328T priority Critical patent/DE60010328T2/en
Priority to AT00983979T priority patent/ATE265774T1/en
Priority to AU20662/01A priority patent/AU2066201A/en
Priority to EP00983979A priority patent/EP1238492B1/en
Publication of WO2001043354A2 publication Critical patent/WO2001043354A2/en
Publication of WO2001043354A3 publication Critical patent/WO2001043354A3/en

Links

Classifications

    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L12/00Data switching networks
    • H04L12/28Data switching networks characterised by path configuration, e.g. LAN [Local Area Networks] or WAN [Wide Area Networks]
    • H04L12/46Interconnection of networks
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L12/00Data switching networks
    • H04L12/28Data switching networks characterised by path configuration, e.g. LAN [Local Area Networks] or WAN [Wide Area Networks]
    • H04L12/46Interconnection of networks
    • H04L12/4641Virtual LANs, VLANs, e.g. virtual private networks [VPN]
    • H04L12/4645Details on frame tagging
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L12/00Data switching networks
    • H04L12/28Data switching networks characterised by path configuration, e.g. LAN [Local Area Networks] or WAN [Wide Area Networks]
    • H04L12/46Interconnection of networks
    • H04L12/4641Virtual LANs, VLANs, e.g. virtual private networks [VPN]
    • H04L12/467Arrangements for supporting untagged frames, e.g. port-based VLANs
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L12/00Data switching networks
    • H04L12/54Store-and-forward switching systems 
    • H04L12/56Packet switching systems
    • H04L12/5601Transfer mode dependent, e.g. ATM
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L45/00Routing or path finding of packets in data switching networks
    • H04L45/24Multipath
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L45/00Routing or path finding of packets in data switching networks
    • H04L45/52Multiprotocol routers
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L45/00Routing or path finding of packets in data switching networks
    • H04L45/74Address processing for routing
    • H04L45/742Route cache; Operation thereof
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L47/00Traffic control in data switching networks
    • H04L47/10Flow control; Congestion control
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L49/00Packet switching elements
    • H04L49/20Support for services
    • H04L49/208Port mirroring
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L69/00Network arrangements, protocols or services independent of the application payload and not provided for in the other groups of this subclass
    • H04L69/16Implementation or adaptation of Internet protocol [IP], of transmission control protocol [TCP] or of user datagram protocol [UDP]
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L12/00Data switching networks
    • H04L12/28Data switching networks characterised by path configuration, e.g. LAN [Local Area Networks] or WAN [Wide Area Networks]
    • H04L12/42Loop networks
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L49/00Packet switching elements
    • H04L49/25Routing or path finding in a switch fabric
    • H04L49/253Routing or path finding in a switch fabric using establishment or release of connections between ports
    • H04L49/254Centralised controller, i.e. arbitration or scheduling
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L49/00Packet switching elements
    • H04L49/35Switches specially adapted for specific applications
    • H04L49/351Switches specially adapted for specific applications for local area network [LAN], e.g. Ethernet switches
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L49/00Packet switching elements
    • H04L49/35Switches specially adapted for specific applications
    • H04L49/351Switches specially adapted for specific applications for local area network [LAN], e.g. Ethernet switches
    • H04L49/352Gigabit ethernet switching [GBPS]
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L49/00Packet switching elements
    • H04L49/35Switches specially adapted for specific applications
    • H04L49/354Switches specially adapted for specific applications for supporting virtual local area networks [VLAN]
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L49/00Packet switching elements
    • H04L49/60Software-defined switches
    • H04L49/602Multilayer or multiprotocol switching, e.g. IP switching
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L69/00Network arrangements, protocols or services independent of the application payload and not provided for in the other groups of this subclass
    • H04L69/14Multichannel or multilink protocols

Abstract

A method of mirroring data to a mirrored to port in a plurality of switches. The method has the steps of determining if data was sent to all of said plurality of switches; determining if said data was sent to a mirrored to port (MTP); and resending said data to all of said plurality of switches if mirroring is enabled and said data was not sent to said MTP.
PCT/US2000/033133 1999-12-07 2000-12-07 Mirroring in a stacked network switch configuration WO2001043354A2 (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
DE60010328T DE60010328T2 (en) 1999-12-07 2000-12-07 MIRRORS IN A NETWORK TRANSMISSION PLATE ASSEMBLY
AT00983979T ATE265774T1 (en) 1999-12-07 2000-12-07 MIRROR IN A NETWORK SWITCH STACK ARRANGEMENT
AU20662/01A AU2066201A (en) 1999-12-07 2000-12-07 Mirroring in a stacked network switch configuration
EP00983979A EP1238492B1 (en) 1999-12-07 2000-12-07 Mirroring in a stacked network switch configuration

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
US16928199P 1999-12-07 1999-12-07
US60/169,281 1999-12-07
US09/461,719 US6813268B1 (en) 1999-05-21 1999-12-16 Stacked network switch configuration
US09/461,719 1999-12-16

Publications (2)

Publication Number Publication Date
WO2001043354A2 WO2001043354A2 (en) 2001-06-14
WO2001043354A3 true WO2001043354A3 (en) 2001-12-20

Family

ID=26864920

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2000/033133 WO2001043354A2 (en) 1999-12-07 2000-12-07 Mirroring in a stacked network switch configuration

Country Status (6)

Country Link
US (2) US6839349B2 (en)
EP (1) EP1238492B1 (en)
AT (1) ATE265774T1 (en)
AU (1) AU2066201A (en)
DE (1) DE60010328T2 (en)
WO (1) WO2001043354A2 (en)

Families Citing this family (89)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2000072533A1 (en) * 1999-05-21 2000-11-30 Broadcom Corporation Stacked network switch configuration
EP1238492B1 (en) * 1999-12-07 2004-04-28 Broadcom Corporation Mirroring in a stacked network switch configuration
US7596139B2 (en) 2000-11-17 2009-09-29 Foundry Networks, Inc. Backplane interface adapter with error control and redundant fabric
US7236490B2 (en) 2000-11-17 2007-06-26 Foundry Networks, Inc. Backplane interface adapter
US7356030B2 (en) * 2000-11-17 2008-04-08 Foundry Networks, Inc. Network switch cross point
US7092393B1 (en) * 2001-02-04 2006-08-15 Cisco Technology, Inc. Method and apparatus for distributed reassembly of subdivided packets using multiple reassembly components
US7027446B2 (en) * 2001-07-18 2006-04-11 P-Cube Ltd. Method and apparatus for set intersection rule matching
TW576061B (en) * 2001-08-13 2004-02-11 Via Tech Inc Device and method for load balancing of packet switching
US7046663B1 (en) * 2001-08-17 2006-05-16 Cisco Technology, Inc. System and method for intercepting packets in a pipeline network processor
US7187687B1 (en) 2002-05-06 2007-03-06 Foundry Networks, Inc. Pipeline method and system for switching packets
US7468975B1 (en) 2002-05-06 2008-12-23 Foundry Networks, Inc. Flexible method for processing data packets in a network routing system for enhanced efficiency and monitoring capability
US20120155466A1 (en) 2002-05-06 2012-06-21 Ian Edward Davis Method and apparatus for efficiently processing data packets in a computer network
US20090279558A1 (en) * 2002-05-06 2009-11-12 Ian Edward Davis Network routing apparatus for enhanced efficiency and monitoring capability
US7243154B2 (en) * 2002-06-27 2007-07-10 Intel Corporation Dynamically adaptable communications processor architecture and associated methods
US7636320B1 (en) * 2002-06-28 2009-12-22 At&T Intellectual Property I, L.P. System and method for creating an asynchronous transfer mode port mirror
US7391739B1 (en) * 2002-06-28 2008-06-24 At&T Delaware Intellectual Property, Inc. System and method for creating a frame relay port mirror
US7200148B1 (en) * 2002-06-28 2007-04-03 Bellsouth Intellectual Property Corp. System and method for analyzing asynchronous transfer mode communications
US8305926B2 (en) 2002-09-04 2012-11-06 At&T Intellectual Property Ii, L.P. Method and apparatus for self-learning of call routing information
US20040196841A1 (en) * 2003-04-04 2004-10-07 Tudor Alexander L. Assisted port monitoring with distributed filtering
US6901072B1 (en) 2003-05-15 2005-05-31 Foundry Networks, Inc. System and method for high speed packet transmission implementing dual transmit and receive pipelines
EP1639488B1 (en) * 2003-06-30 2013-11-06 JDS Uniphase Corporation Propagation of signals between devices for triggering capture of network data
US20050005026A1 (en) * 2003-07-03 2005-01-06 International Business Machines Corporation Method and apparatus for managing a remote data processing system
US7624187B1 (en) * 2003-09-19 2009-11-24 At&T Intellectual Property, I, L.P. Method, system and computer program product for providing Ethernet VLAN capacity requirement estimation
US7640359B1 (en) 2003-09-19 2009-12-29 At&T Intellectual Property, I, L.P. Method, system and computer program product for facilitating the design and assignment of ethernet VLANs
US20050066036A1 (en) * 2003-09-19 2005-03-24 Neil Gilmartin Methods, systems and computer program products for facilitating the design and analysis of virtual networks based on total hub value
US7349985B2 (en) * 2003-11-24 2008-03-25 At&T Delaware Intellectual Property, Inc. Method, system and computer program product for calculating a VLAN latency measure
US7463654B2 (en) * 2003-12-22 2008-12-09 3Com Corporation Stackable routers employing a routing protocol
US7817659B2 (en) 2004-03-26 2010-10-19 Foundry Networks, Llc Method and apparatus for aggregating input data streams
US8730961B1 (en) 2004-04-26 2014-05-20 Foundry Networks, Llc System and method for optimizing router lookup
US7424018B2 (en) * 2004-05-05 2008-09-09 Gigamon Systems Llc Asymmetric packet switch and a method of use
US20060013231A1 (en) * 2004-06-22 2006-01-19 Sbc Knowledge Ventures, Lp Consolidated ethernet optical network and apparatus
US7958208B2 (en) * 2004-09-22 2011-06-07 At&T Intellectual Property I, L.P. System and method for designing a customized switched metro Ethernet data network
US7657703B1 (en) 2004-10-29 2010-02-02 Foundry Networks, Inc. Double density content addressable memory (CAM) lookup scheme
US7554997B1 (en) * 2004-11-17 2009-06-30 Adtran, Inc. Integrated router switch-based port-mirroring mechanism for monitoring LAN-to-WAN and WAN-to-LAN traffic
DE502005002402D1 (en) * 2005-02-28 2008-02-14 Siemens Ag Method for reducing data packet loss when updating an address table
US7688825B2 (en) 2005-04-12 2010-03-30 Fujitsu Limited Filtering frames at an input port of a switch
US7664116B2 (en) 2005-04-12 2010-02-16 Fujitsu Limited Network based routing scheme
US8448162B2 (en) 2005-12-28 2013-05-21 Foundry Networks, Llc Hitless software upgrades
TW200737843A (en) * 2006-03-31 2007-10-01 Hon Hai Prec Ind Co Ltd Network device and method for mirroring packets
US7953089B1 (en) * 2006-05-16 2011-05-31 Cisco Technology, Inc. Systems and methods for multicast switching in a private VLAN
US7903654B2 (en) 2006-08-22 2011-03-08 Foundry Networks, Llc System and method for ECMP load sharing
CN100461742C (en) * 2006-08-24 2009-02-11 华为技术有限公司 Method and device for improving reliability of user terminal dual attachment network in VPLS system
US8238255B2 (en) 2006-11-22 2012-08-07 Foundry Networks, Llc Recovering from failures without impact on data traffic in a shared bus architecture
US20090279441A1 (en) * 2007-01-11 2009-11-12 Foundry Networks, Inc. Techniques for transmitting failure detection protocol packets
GB2450148A (en) * 2007-06-14 2008-12-17 Advanced Risc Mach Ltd Controlling write transactions between initiators and recipients via interconnect logic
US8271859B2 (en) 2007-07-18 2012-09-18 Foundry Networks Llc Segmented CRC design in high speed networks
US8037399B2 (en) 2007-07-18 2011-10-11 Foundry Networks, Llc Techniques for segmented CRC design in high speed networks
US8509236B2 (en) 2007-09-26 2013-08-13 Foundry Networks, Llc Techniques for selecting paths and/or trunk ports for forwarding traffic flows
US20090080419A1 (en) * 2007-09-26 2009-03-26 Kutch Patrick G Providing consistent manageability interface to a management controller for local and remote connections
US8407364B2 (en) 2007-10-25 2013-03-26 Cisco Technology, Inc. Apparatus and method for providing a congestion measurement in a network
US8315256B2 (en) * 2008-04-17 2012-11-20 Gigamon Llc State-based filtering on a packet switch appliance
US9032057B2 (en) 2009-04-06 2015-05-12 Brocade Communications Systems, Inc. Secure stacking setup implementing user interface of stacking device
US8090901B2 (en) 2009-05-14 2012-01-03 Brocade Communications Systems, Inc. TCAM management approach that minimize movements
US8018943B1 (en) 2009-07-31 2011-09-13 Anue Systems, Inc. Automatic filter overlap processing and related systems and methods
US8934495B1 (en) 2009-07-31 2015-01-13 Anue Systems, Inc. Filtering path view graphical user interfaces and related systems and methods
US8098677B1 (en) 2009-07-31 2012-01-17 Anue Systems, Inc. Superset packet forwarding for overlapping filters and related systems and methods
US8599850B2 (en) 2009-09-21 2013-12-03 Brocade Communications Systems, Inc. Provisioning single or multistage networks using ethernet service instances (ESIs)
US8891527B2 (en) * 2012-02-03 2014-11-18 Gigamon Inc. Systems and methods for packet filtering and switching
US9769049B2 (en) * 2012-07-27 2017-09-19 Gigamon Inc. Monitoring virtualized network
US9197586B2 (en) 2012-12-18 2015-11-24 Mellanox Technologies Ltd. Maintaining consistent quality of service between subnets
US8982703B2 (en) 2012-12-18 2015-03-17 Mellanox Technologies Ltd. Routing support for lossless data traffic
US9385949B2 (en) 2012-12-20 2016-07-05 Mellanox Technologies Tlv Ltd. Routing controlled by subnet managers
US9559897B2 (en) 2012-12-21 2017-01-31 Brocade Communications Systems, Inc. Device ID assignment in a system of devices
US9584393B2 (en) 2013-03-15 2017-02-28 Extreme Networks, Inc. Device and related method for dynamic traffic mirroring policy
US9813447B2 (en) 2013-03-15 2017-11-07 Extreme Networks, Inc. Device and related method for establishing network policy based on applications
US9172627B2 (en) * 2013-03-15 2015-10-27 Extreme Networks, Inc. Device and related method for dynamic traffic mirroring
US9148387B2 (en) 2013-05-10 2015-09-29 Brocade Communications Systems, Inc. Hardware hash table virtualization in multi-packet processor networking systems
US9313102B2 (en) 2013-05-20 2016-04-12 Brocade Communications Systems, Inc. Configuration validation in a mixed node topology
US9853889B2 (en) 2013-05-20 2017-12-26 Brocade Communications Systems, Inc. Broadcast and multicast traffic reduction in stacking systems
JP6107413B2 (en) * 2013-05-22 2017-04-05 富士通株式会社 Analysis device, network system, port switching method and program
US10284499B2 (en) 2013-08-22 2019-05-07 Arris Enterprises Llc Dedicated control path architecture for systems of devices
US9185049B2 (en) 2013-10-31 2015-11-10 Brocade Communications Systems, Inc. Techniques for simplifying stacking trunk creation and management
US9577932B2 (en) 2014-02-12 2017-02-21 Brocade Communications Systems, Inc. Techniques for managing ternary content-addressable memory (TCAM) resources in heterogeneous systems
US9692695B2 (en) 2014-03-27 2017-06-27 Brocade Communications Systems, Inc. Techniques for aggregating hardware routing resources in a multi-packet processor networking system
US9692652B2 (en) 2014-04-03 2017-06-27 Brocade Communications Systems, Inc. Framework for reliably communicating port information in a system of devices
US9467385B2 (en) 2014-05-29 2016-10-11 Anue Systems, Inc. Cloud-based network tool optimizers for server cloud networks
US9781044B2 (en) 2014-07-16 2017-10-03 Anue Systems, Inc. Automated discovery and forwarding of relevant network traffic with respect to newly connected network tools for network tool optimizers
US10050847B2 (en) 2014-09-30 2018-08-14 Keysight Technologies Singapore (Holdings) Pte Ltd Selective scanning of network packet traffic using cloud-based virtual machine tool platforms
US10091059B2 (en) 2014-12-16 2018-10-02 Arris Enterprises Llc Handling connections between network devices that support multiple port communication modes
US9992134B2 (en) 2015-05-27 2018-06-05 Keysight Technologies Singapore (Holdings) Pte Ltd Systems and methods to forward packets not passed by criteria-based filters in packet forwarding systems
US10116528B2 (en) 2015-10-02 2018-10-30 Keysight Technologies Singapore (Holdings) Ptd Ltd Direct network traffic monitoring within VM platforms in virtual processing environments
US10652112B2 (en) 2015-10-02 2020-05-12 Keysight Technologies Singapore (Sales) Pte. Ltd. Network traffic pre-classification within VM platforms in virtual processing environments
US10142212B2 (en) 2015-10-26 2018-11-27 Keysight Technologies Singapore (Holdings) Pte Ltd On demand packet traffic monitoring for network packet communications within virtual processing environments
CN108432183A (en) * 2016-04-01 2018-08-21 慧与发展有限责任合伙企业 Interchanger configures
CN106789425B (en) * 2016-12-22 2019-08-02 北京东土科技股份有限公司 A kind of method and device of determining duplicate message
JP6740911B2 (en) * 2017-01-16 2020-08-19 富士通株式会社 Port switching program, port switching method, and information processing device
US10296370B2 (en) * 2017-05-30 2019-05-21 Nicira, Inc. Port mirroring in a virtualized computing environment
CN113346983B (en) * 2021-08-03 2021-11-02 浙江国利信安科技有限公司 EPA equipment with mirror redundancy and EPA system
CN114826972B (en) * 2022-03-24 2023-12-26 新华三技术有限公司合肥分公司 Stacking equipment and stacking releasing method thereof

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1999009713A1 (en) * 1997-08-21 1999-02-25 Adc Telecommunications, Inc. Circuits and methods for a ring network
GB2333429A (en) * 1997-11-28 1999-07-21 3Com Technologies Ltd Stacked communication devices
WO2000072533A1 (en) * 1999-05-21 2000-11-30 Broadcom Corporation Stacked network switch configuration

Family Cites Families (73)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4899334A (en) 1987-10-19 1990-02-06 Oki Electric Industry Co., Ltd. Self-routing multistage switching network for fast packet switching system
DE68926347T2 (en) 1988-10-20 1996-11-14 Chung STORAGE STRUCTURE AND USE
US5253248A (en) 1990-07-03 1993-10-12 At&T Bell Laboratories Congestion control for connectionless traffic in data networks via alternate routing
GB9023867D0 (en) 1990-11-02 1990-12-12 Mv Ltd Improvements relating to a fault tolerant storage system
JPH04189023A (en) 1990-11-22 1992-07-07 Victor Co Of Japan Ltd Pulse synchronizing circuit
JPH04214290A (en) 1990-12-12 1992-08-05 Mitsubishi Electric Corp Semiconductor memory device
JPH05183828A (en) 1991-12-27 1993-07-23 Sony Corp Electronic equipment
DE69319757T2 (en) 1992-01-10 1999-04-15 Digital Equipment Corp Method for connecting a line card to an address recognition unit
SE470039B (en) 1992-03-17 1993-10-25 Ellemtel Utvecklings Ab Ways to achieve link grouping in a packet selector
US5390173A (en) 1992-10-22 1995-02-14 Digital Equipment Corporation Packet format in hub for packet data communications system
EP0594196B1 (en) 1992-10-22 1999-03-31 Cabletron Systems, Inc. Address lookup in packet data communications link, using hashing and content-addressable memory
US5696899A (en) 1992-11-18 1997-12-09 Canon Kabushiki Kaisha Method and apparatus for adaptively determining the format of data packets carried on a local area network
US5473607A (en) 1993-08-09 1995-12-05 Grand Junction Networks, Inc. Packet filtering for data networks
US5499295A (en) 1993-08-31 1996-03-12 Ericsson Inc. Method and apparatus for feature authorization and software copy protection in RF communications devices
US5887187A (en) 1993-10-20 1999-03-23 Lsi Logic Corporation Single chip network adapter apparatus
US5802287A (en) 1993-10-20 1998-09-01 Lsi Logic Corporation Single chip universal protocol multi-function ATM network interface
US5579301A (en) 1994-02-28 1996-11-26 Micom Communications Corp. System for, and method of, managing voice congestion in a network environment
US5459717A (en) 1994-03-25 1995-10-17 Sprint International Communications Corporation Method and apparatus for routing messagers in an electronic messaging system
US5555398A (en) 1994-04-15 1996-09-10 Intel Corporation Write back cache coherency module for systems with a write through cache supporting bus
FR2725573B1 (en) 1994-10-11 1996-11-15 Thomson Csf METHOD AND DEVICE FOR CONTROLLING CONGESTION OF SPORADIC EXCHANGES OF DATA PACKETS IN A DIGITAL TRANSMISSION NETWORK
EP0719065A1 (en) 1994-12-20 1996-06-26 International Business Machines Corporation Multipurpose packet switching node for a data communication network
US5790539A (en) 1995-01-26 1998-08-04 Chao; Hung-Hsiang Jonathan ASIC chip for implementing a scaleable multicast ATM switch
US5644784A (en) 1995-03-03 1997-07-01 Intel Corporation Linear list based DMA control structure
GB9510933D0 (en) 1995-05-31 1995-07-26 3Com Ireland Simple work group implementation mechanism
US5664116A (en) 1995-07-07 1997-09-02 Sun Microsystems, Inc. Buffering of data for transmission in a computer communication system interface
US5684800A (en) 1995-11-15 1997-11-04 Cabletron Systems, Inc. Method for establishing restricted broadcast groups in a switched network
US5781549A (en) 1996-02-23 1998-07-14 Allied Telesyn International Corp. Method and apparatus for switching data packets in a data network
US5940596A (en) 1996-03-25 1999-08-17 I-Cube, Inc. Clustered address caching system for a network switch
US5828653A (en) 1996-04-26 1998-10-27 Cascade Communications Corp. Quality of service priority subclasses
US5748631A (en) 1996-05-09 1998-05-05 Maker Communications, Inc. Asynchronous transfer mode cell processing system with multiple cell source multiplexing
US5787084A (en) 1996-06-05 1998-07-28 Compaq Computer Corporation Multicast data communications switching system and associated method
US5802052A (en) 1996-06-26 1998-09-01 Level One Communication, Inc. Scalable high performance switch element for a shared memory packet or ATM cell switch fabric
JPH1023025A (en) * 1996-07-04 1998-01-23 Nec Corp Radio conference system
US5898687A (en) 1996-07-24 1999-04-27 Cisco Systems, Inc. Arbitration mechanism for a multicast logic engine of a switching fabric circuit
GB9618132D0 (en) 1996-08-30 1996-10-09 Sgs Thomson Microelectronics Improvements in or relating to an ATM switch
US5845081A (en) 1996-09-03 1998-12-01 Sun Microsystems, Inc. Using objects to discover network information about a remote network having a different network protocol
US5831980A (en) 1996-09-13 1998-11-03 Lsi Logic Corporation Shared memory fabric architecture for very high speed ATM switches
US5842038A (en) 1996-10-10 1998-11-24 Unisys Corporation Optimized input/output memory access request system and method
JP3123447B2 (en) 1996-11-13 2001-01-09 日本電気株式会社 Switch control circuit of ATM exchange
EP0849917B1 (en) 1996-12-20 2005-07-20 International Business Machines Corporation Switching system
US6233246B1 (en) 1996-12-30 2001-05-15 Compaq Computer Corporation Network switch with statistics read accesses
DE19703833A1 (en) 1997-02-01 1998-08-06 Philips Patentverwaltung Coupling device
US6452933B1 (en) 1997-02-07 2002-09-17 Lucent Technologies Inc. Fair queuing system with adaptive bandwidth redistribution
US6061351A (en) 1997-02-14 2000-05-09 Advanced Micro Devices, Inc. Multicopy queue structure with searchable cache area
US6175902B1 (en) 1997-12-18 2001-01-16 Advanced Micro Devices, Inc. Method and apparatus for maintaining a time order by physical ordering in a memory
US5892922A (en) 1997-02-28 1999-04-06 3Com Corporation Virtual local area network memory access system
US6011795A (en) 1997-03-20 2000-01-04 Washington University Method and apparatus for fast hierarchical address lookup using controlled expansion of prefixes
US6041042A (en) * 1997-05-27 2000-03-21 Cabletron Systems, Inc. Remote port mirroring system and method thereof
US6021132A (en) 1997-06-30 2000-02-01 Sun Microsystems, Inc. Shared memory management in a switched network element
US5920566A (en) 1997-06-30 1999-07-06 Sun Microsystems, Inc. Routing in a multi-layer distributed network element
US6115378A (en) 1997-06-30 2000-09-05 Sun Microsystems, Inc. Multi-layer distributed network element
US5909686A (en) 1997-06-30 1999-06-01 Sun Microsystems, Inc. Hardware-assisted central processing unit access to a forwarding database
US6014380A (en) 1997-06-30 2000-01-11 Sun Microsystems, Inc. Mechanism for packet field replacement in a multi-layer distributed network element
US6088356A (en) 1997-06-30 2000-07-11 Sun Microsystems, Inc. System and method for a multi-layer network element
US6016310A (en) * 1997-06-30 2000-01-18 Sun Microsystems, Inc. Trunking support in a high performance network device
US6094435A (en) 1997-06-30 2000-07-25 Sun Microsystems, Inc. System and method for a quality of service in a multi-layer network element
US6246680B1 (en) 1997-06-30 2001-06-12 Sun Microsystems, Inc. Highly integrated multi-layer switch element architecture
US6119196A (en) 1997-06-30 2000-09-12 Sun Microsystems, Inc. System having multiple arbitrating levels for arbitrating access to a shared memory by network ports operating at different data rates
US5918074A (en) 1997-07-25 1999-06-29 Neonet Llc System architecture for and method of dual path data processing and management of packets and/or cells and the like
US6041053A (en) 1997-09-18 2000-03-21 Microsfot Corporation Technique for efficiently classifying packets using a trie-indexed hierarchy forest that accommodates wildcards
JP2959539B2 (en) 1997-10-01 1999-10-06 日本電気株式会社 Buffer control method and device
US6185185B1 (en) 1997-11-21 2001-02-06 International Business Machines Corporation Methods, systems and computer program products for suppressing multiple destination traffic in a computer network
GB9725372D0 (en) 1997-11-28 1998-01-28 3Com Ireland Trunking in stacked communication devices
US6339595B1 (en) 1997-12-23 2002-01-15 Cisco Technology, Inc. Peer-model support for virtual private networks with potentially overlapping addresses
GB2337905B (en) 1998-05-28 2003-02-12 3Com Technologies Ltd Buffer management in network devices
GB2338155B (en) 1998-06-05 2003-02-12 3Com Technologies Ltd Hub system with ring arbitration
US6496502B1 (en) 1998-06-29 2002-12-17 Nortel Networks Limited Distributed multi-link trunking method and apparatus
US6490276B1 (en) 1998-06-29 2002-12-03 Nortel Networks Limited Stackable switch port collapse mechanism
US6570875B1 (en) 1998-10-13 2003-05-27 Intel Corporation Automatic filtering and creation of virtual LANs among a plurality of switch ports
US6850521B1 (en) * 1999-03-17 2005-02-01 Broadcom Corporation Network switch
JP2001015704A (en) * 1999-06-29 2001-01-19 Hitachi Ltd Semiconductor integrated circuit
EP1238492B1 (en) * 1999-12-07 2004-04-28 Broadcom Corporation Mirroring in a stacked network switch configuration
US7991520B2 (en) 2006-04-25 2011-08-02 Mitsubishi Electric Corporation Control apparatus for electric car

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1999009713A1 (en) * 1997-08-21 1999-02-25 Adc Telecommunications, Inc. Circuits and methods for a ring network
GB2333429A (en) * 1997-11-28 1999-07-21 3Com Technologies Ltd Stacked communication devices
WO2000072533A1 (en) * 1999-05-21 2000-11-30 Broadcom Corporation Stacked network switch configuration

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US20020054595A1 (en) 2002-05-09
ATE265774T1 (en) 2004-05-15
US6839349B2 (en) 2005-01-04
US20050074006A1 (en) 2005-04-07
DE60010328T2 (en) 2005-05-04
WO2001043354A2 (en) 2001-06-14
EP1238492A2 (en) 2002-09-11
EP1238492B1 (en) 2004-04-28
US7715328B2 (en) 2010-05-11
AU2066201A (en) 2001-06-18

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