WO2004066120A3 - A method and apparatus for transporting packet data over an optical network - Google Patents

A method and apparatus for transporting packet data over an optical network Download PDF

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Publication number
WO2004066120A3
WO2004066120A3 PCT/US2004/000856 US2004000856W WO2004066120A3 WO 2004066120 A3 WO2004066120 A3 WO 2004066120A3 US 2004000856 W US2004000856 W US 2004000856W WO 2004066120 A3 WO2004066120 A3 WO 2004066120A3
Authority
WO
WIPO (PCT)
Prior art keywords
sonet
network
mpls
layer
transport network
Prior art date
Application number
PCT/US2004/000856
Other languages
French (fr)
Other versions
WO2004066120A2 (en
Inventor
Ping Pan
Ralph Theodore Hofmeister
Original Assignee
Ciena Coporation
Ping Pan
Ralph Theodore Hofmeister
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 Ciena Coporation, Ping Pan, Ralph Theodore Hofmeister filed Critical Ciena Coporation
Priority to GB0514690A priority Critical patent/GB2413918B/en
Publication of WO2004066120A2 publication Critical patent/WO2004066120A2/en
Publication of WO2004066120A3 publication Critical patent/WO2004066120A3/en

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Classifications

    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04JMULTIPLEX COMMUNICATION
    • H04J3/00Time-division multiplex systems
    • H04J3/16Time-division multiplex systems in which the time allocation to individual channels within a transmission cycle is variable, e.g. to accommodate varying complexity of signals, to vary number of channels transmitted
    • H04J3/1605Fixed allocated frame structures
    • H04J3/1611Synchronous digital hierarchy [SDH] or SONET
    • H04J3/1617Synchronous digital hierarchy [SDH] or SONET carrying packets or ATM cells
    • 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
    • H04L12/4633Interconnection of networks using encapsulation techniques, e.g. tunneling
    • 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
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L45/00Routing or path finding of packets in data switching networks
    • H04L45/02Topology update or discovery
    • H04L45/04Interdomain routing, e.g. hierarchical routing
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L45/00Routing or path finding of packets in data switching networks
    • H04L45/50Routing or path finding of packets in data switching networks using label swapping, e.g. multi-protocol label switch [MPLS]
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L49/00Packet switching elements
    • H04L49/35Switches specially adapted for specific applications
    • 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
    • H04JMULTIPLEX COMMUNICATION
    • H04J2203/00Aspects of optical multiplex systems other than those covered by H04J14/05 and H04J14/07
    • H04J2203/0001Provisions for broadband connections in integrated services digital network using frames of the Optical Transport Network [OTN] or using synchronous transfer mode [STM], e.g. SONET, SDH
    • H04J2203/0003Switching fabrics, e.g. transport network, control network
    • H04J2203/0012Switching modules and their interconnections
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04JMULTIPLEX COMMUNICATION
    • H04J2203/00Aspects of optical multiplex systems other than those covered by H04J14/05 and H04J14/07
    • H04J2203/0001Provisions for broadband connections in integrated services digital network using frames of the Optical Transport Network [OTN] or using synchronous transfer mode [STM], e.g. SONET, SDH
    • H04J2203/0064Admission Control
    • H04J2203/0066Signalling, e.g. protocols, reference model
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04JMULTIPLEX COMMUNICATION
    • H04J2203/00Aspects of optical multiplex systems other than those covered by H04J14/05 and H04J14/07
    • H04J2203/0001Provisions for broadband connections in integrated services digital network using frames of the Optical Transport Network [OTN] or using synchronous transfer mode [STM], e.g. SONET, SDH
    • H04J2203/0073Services, e.g. multimedia, GOS, QOS
    • H04J2203/0082Interaction of SDH with non-ATM protocols

Abstract

A method, apparatus and network for transporting layer-2 frames, such as Ethernet MAC, ATM AAL5, and Frame Relay, over SONET, SDH, or OTN transport networks is disclosed. The method establishes 'pseudo-wires' between, for example, SONET switches and directly on top of the SONET layer. The method may implement MPLS signaling protocols on traditional SONET switches for the purpose of aggregating layer-2 frames from the transport network edges, while the transport network itself is independent from IP and MPLS routing. This approach provides a number of advantages to the network carriers in terms of operation and equipment expense reduction. To enable the transport network to be independent from IP and MPLS, and avoid subsequent IP control message processing inside the networks, an edge-to-edge 'tunneling' mechanism is designed to transmit control messages as a part of the SONET (or SDH or OTN) frame payload.
PCT/US2004/000856 2003-01-15 2004-01-15 A method and apparatus for transporting packet data over an optical network WO2004066120A2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB0514690A GB2413918B (en) 2003-01-15 2004-01-15 A method and apparatus for transporting packet data over an optical network

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US44031303P 2003-01-15 2003-01-15
US60/440,313 2003-01-15

Publications (2)

Publication Number Publication Date
WO2004066120A2 WO2004066120A2 (en) 2004-08-05
WO2004066120A3 true WO2004066120A3 (en) 2005-07-14

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2004/000856 WO2004066120A2 (en) 2003-01-15 2004-01-15 A method and apparatus for transporting packet data over an optical network

Country Status (4)

Country Link
US (1) US6985488B2 (en)
CN (1) CN1757210A (en)
GB (1) GB2413918B (en)
WO (1) WO2004066120A2 (en)

Families Citing this family (128)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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
US8014380B2 (en) * 2002-07-03 2011-09-06 Alcatel Lucent Method and system for automatically establishing a return label switched path
US7567581B2 (en) * 2002-10-21 2009-07-28 Broadcom Corporation Multi-service channelized SONET mapper framer
EP1414173B1 (en) * 2002-10-23 2012-08-01 Broadcom Corporation Multi-service channelized SONET mapper frame
US20040085904A1 (en) * 2002-10-31 2004-05-06 Bordogna Mark A. Method for flow control of packets aggregated from multiple logical ports over a transport link
CN100440824C (en) * 2003-01-28 2008-12-03 华为技术有限公司 System and method for switchingin and transmission of different data frames in digital transmission network
US7327672B1 (en) * 2003-01-31 2008-02-05 Applied Micro Circuits Corporation Signal routing in a node of a 1:N automatic protection switching network
CN1266895C (en) * 2003-03-11 2006-07-26 华为技术有限公司 Method for dynamically lossless regulating bandwidth of inner embedded elastic package circular network
US7489710B2 (en) * 2003-04-22 2009-02-10 Agere Systems Inc. Stall need detection and associated stall mechanism for delay compensation in virtual concatenation applications
US7599373B1 (en) * 2003-07-17 2009-10-06 At&T Corp. Method and apparatus for automated provisioning for customer premises transport equipment
US7447203B2 (en) 2003-07-29 2008-11-04 At&T Intellectual Property I, L.P. Broadband access for virtual private networks
CN1625176B (en) * 2003-12-03 2010-04-28 华为技术有限公司 Realization method of edge to edge pseudo-line simulation protocol
CN100550823C (en) * 2003-12-26 2009-10-14 上海贝尔阿尔卡特股份有限公司 A kind of Ethernet transfer equipment and method with quick protection and fair characteristic
US20050141567A1 (en) * 2003-12-29 2005-06-30 Abed Jaber Extending Ethernet-over-SONET to provide point-to-multipoint service
US8078164B2 (en) 2004-01-06 2011-12-13 Vasu Networks Corporation Mobile telephone VOIP/cellular seamless roaming switching controller
WO2005067635A2 (en) 2004-01-06 2005-07-28 Hava Corp. Telephone with automatic switching between cellular and voip networks
US8514867B2 (en) * 2004-01-06 2013-08-20 Hava Corporation Method of determining broadband content usage within a system
US10419996B2 (en) 2004-01-06 2019-09-17 Vasu Networks Corporation Mobile device with automatic switching between cellular and wifi networks
US8913604B2 (en) 2004-01-06 2014-12-16 Vasu Networks Corporation Access point with controller for billing and generating income for access point owner
KR100590876B1 (en) * 2004-01-20 2006-06-19 삼성전자주식회사 method for label management of distributed Muti Protocol label switching router and the router thereof
US7760636B1 (en) * 2004-01-26 2010-07-20 Cisco Technology, Inc. Retransmission and flow control in a logical network tunnel
FR2867642B1 (en) * 2004-03-09 2006-08-18 Cit Alcatel DEVICE AND METHOD FOR PROCESSING MULTIPROTOCOLAR FIELD FRAMES FOR A COMMUNICATIONS NETWORK
US8340102B2 (en) * 2004-04-05 2012-12-25 Verizon Business Global Llc Apparatus and method for providing a network termination point
US8289973B2 (en) 2004-04-05 2012-10-16 Verizon Business Global Llc System and method for indicating classification of a communications flow
US8948207B2 (en) * 2004-04-05 2015-02-03 Verizon Patent And Licensing Inc. System and method for transporting time-division multiplexed communications through a packet-switched access network
US8218569B2 (en) * 2004-04-05 2012-07-10 Verizon Business Global Llc Apparatus and method for terminating service emulation instances
US20050220059A1 (en) * 2004-04-05 2005-10-06 Delregno Dick System and method for providing a multiple-protocol crossconnect
US7869450B2 (en) * 2004-04-05 2011-01-11 Verizon Business Global Llc Method and apparatus for processing labeled flows in a communication access network
US8249082B2 (en) * 2004-04-05 2012-08-21 Verizon Business Global Llc System method for a communications access network
US7821929B2 (en) * 2004-04-05 2010-10-26 Verizon Business Global Llc System and method for controlling communication flow rates
US7430210B2 (en) * 2004-05-26 2008-09-30 Fujitsu Limited Application of an Ethernet/MPLS “half bridge” to provide emulated Ethernet LAN functions in SONET networks
US7433359B2 (en) * 2004-05-28 2008-10-07 Fujitsu Limited Application of an Ethernet/MPLS half bridge to provide Ethernet multiplexing functions (EMF) in SONET network elements (NEs)
US7957266B2 (en) * 2004-05-28 2011-06-07 Alcatel-Lucent Usa Inc. Efficient and robust routing independent of traffic pattern variability
JP4418302B2 (en) * 2004-05-31 2010-02-17 独立行政法人科学技術振興機構 Relay device, packet filtering method, and packet filtering program
US7644317B1 (en) * 2004-06-02 2010-01-05 Cisco Technology, Inc. Method and apparatus for fault detection/isolation in metro Ethernet service
US8149731B2 (en) * 2004-06-24 2012-04-03 Cisco Technology, Inc. Technique for transferring data over a packet switched network
US20060013133A1 (en) * 2004-07-16 2006-01-19 Wang-Hsin Peng Packet-aware time division multiplexing switch with dynamically configurable switching fabric connections
US7463584B2 (en) * 2004-08-03 2008-12-09 Nortel Networks Limited System and method for hub and spoke virtual private network
US7733870B1 (en) * 2004-09-10 2010-06-08 Verizon Services Corp. & Verizon Services Organization Inc. Bandwidth-on-demand systems and methods
CN100349437C (en) * 2004-10-15 2007-11-14 华为技术有限公司 Method for transferring control information in MPLS ring net
US7516224B2 (en) * 2004-10-21 2009-04-07 Cisco Technology, Inc. Pseudowire termination directly on a router
US20060092916A1 (en) * 2004-10-29 2006-05-04 Fujitsu Network Communications, Inc. Routing frames in an IP sonet ring using an IP proxy server
US8315255B1 (en) * 2004-11-23 2012-11-20 Rockstar Consortium Us Lp Psuedo wire merge for IPTV
US8718067B2 (en) * 2004-11-24 2014-05-06 Lantiq Deutschland Gmbh Pre-emption mechanism for packet transport
CN1791057B (en) * 2004-12-15 2011-06-15 华为技术有限公司 Method for transmitting data service in OTN and its device
US20060133383A1 (en) * 2004-12-22 2006-06-22 Russell Homer Communications system with scan table identification
US7590130B2 (en) * 2004-12-22 2009-09-15 Exar Corporation Communications system with first and second scan tables
US7701976B2 (en) * 2004-12-22 2010-04-20 Exar Corporation Communications system with segmenting and framing of segments
US7583664B2 (en) * 2004-12-28 2009-09-01 Michael Ho Techniques for transmitting and receiving traffic over advanced switching compatible switch fabrics
SG124302A1 (en) * 2005-01-13 2006-08-30 Oki Techno Ct Singapore Pte Architecture and protocol for software defined radio system
US10320989B2 (en) 2005-02-11 2019-06-11 Vasu Networks Corporation Access point with controller for billing and generating income for access point owner
US7940652B1 (en) 2005-02-14 2011-05-10 Brixham Solutions Ltd. Pseudowire protection using a standby pseudowire
US20060182113A1 (en) * 2005-02-17 2006-08-17 Lucent Technologies Inc. Automatic discovery of pseudo-wire peer addresses in ethernet-based networks
US20060203747A1 (en) * 2005-03-11 2006-09-14 Nortel Networks Limited Network topology systems and methods
US9160658B1 (en) 2005-07-12 2015-10-13 Brixham Solutions Ltd. Proxies for pseudo-wire allocation and distribution
US7756125B2 (en) * 2005-08-05 2010-07-13 Telefonaktiebolaget Lm Ericsson (Publ) Method and arrangement for routing pseudo-wire encapsulated packets
US9124486B2 (en) * 2005-08-26 2015-09-01 RPX Clearinghouse, LLC Method for establishing multi segment pseudowire across domains having different pseudowire signaling protocol
US7593398B2 (en) * 2005-09-08 2009-09-22 Cisco Technology, Inc. Layer-two interworking applied to L2-L3 pseudowires
CN100531047C (en) * 2005-09-30 2009-08-19 华为技术有限公司 Method for carrying out protection inversion on pseudo wire in packet switch network
US8588061B2 (en) 2005-10-07 2013-11-19 Brixham Solutions Ltd. Application wire
US20070086448A1 (en) * 2005-10-17 2007-04-19 Sbc Knowledge Ventures Lp Integrated pseudo-wire and virtual routing and forwarding on a single provider edge router
ITMI20051972A1 (en) * 2005-10-18 2007-04-19 Marconi Comm Spa AUTOMATIC ADAPTATION OF THE CONNECTIVITY FOR TRAFFIC PACKAGES IN A TRANSPORTATION NETWORK
CN100561962C (en) * 2005-11-24 2009-11-18 华为技术有限公司 Realize the method and system that network connection service is set up based on directory service
KR100785781B1 (en) * 2005-12-08 2007-12-18 한국전자통신연구원 Single platform structure for packet and ethernet over synchronous digital hierarchySDH and frame format method of the same structure
FR2894752B1 (en) * 2005-12-12 2008-01-11 Alcatel Sa METHOD FOR ESTABLISHING CONNECTION BETWEEN PORTIONS OF A DISTRIBUTED APPLICATION IN NODES CONNECTED TO A GMPLS CONTROL PLAN COMMUNICATION NETWORK
CN100452756C (en) * 2005-12-20 2009-01-14 华为技术有限公司 Method and system for penetrating and transmitting ATM cell
US20070140271A1 (en) * 2005-12-21 2007-06-21 Amante Shane M Method and system for terminating SONET/SDH circuits in an IP network
EP1814264A1 (en) * 2006-01-25 2007-08-01 BRITISH TELECOMMUNICATIONS public limited company Preventing loss of service resulting from damage to an end user's access connection
EP1830523A1 (en) * 2006-03-02 2007-09-05 BRITISH TELECOMMUNICATIONS public limited company Multi-protocol label switching
US20070280267A1 (en) * 2006-03-03 2007-12-06 Nortel Networks Limited Completely Dry Pseudowires
US20070239891A1 (en) * 2006-04-06 2007-10-11 Wainner Warren S Method and apparatus for point-to-multipoint distribution using pseudowires
US8848711B1 (en) 2006-08-04 2014-09-30 Brixham Solutions Ltd. Global IP-based service-oriented network architecture
DE102006036565A1 (en) * 2006-08-04 2008-02-07 Siemens Ag Method for packet-switched data transmission in a communications network
US20080062996A1 (en) * 2006-09-13 2008-03-13 Futurewei Technologies, Inc. Consumer Edge Initiated Pseudo-Wire Multi-Homing in Access Networks
CN1949700B (en) * 2006-10-09 2010-10-06 华为技术有限公司 Method and apparatus for mixed network protection
US7583674B2 (en) * 2006-11-20 2009-09-01 Alcatel Lucent Switch and method for supporting internet protocol (IP) network tunnels
US7983274B2 (en) * 2006-12-21 2011-07-19 Verizon Patent And Licensing Inc. Performance monitoring of pseudowire emulation
US8619784B2 (en) 2007-01-25 2013-12-31 Brixham Solutions Ltd. Mapping PBT and PBB-TE traffic to VPLS and other services
JPWO2008108231A1 (en) * 2007-02-26 2010-06-10 日本電気株式会社 Quality degradation location estimation method, quality degradation location estimation apparatus, and program
EP2183887A4 (en) * 2007-03-26 2013-01-16 Brixham Solutions Ltd Layer 2 virtual private network over pbb-te/pbt and seamless interworking with vpls
US8385355B1 (en) 2007-11-07 2013-02-26 Brixham Solutions Ltd E-Trees over MPLS and PBB-TE networks
US8325706B2 (en) * 2007-11-26 2012-12-04 Verizon Patent And Licensing Inc. Hierarchical segmented label switched paths
CN101459574B (en) * 2007-12-14 2013-03-20 华为技术有限公司 Network deployment method, network system and IP node
JP5136132B2 (en) * 2008-03-17 2013-02-06 日本電気株式会社 Optical transmission apparatus, optical transmission system, apparatus control method, and apparatus program
US20090304010A1 (en) * 2008-06-06 2009-12-10 Nec Corpoation Of America Network element providing an interworking function between plural networks, and system and method including the network element
JP4957660B2 (en) * 2008-06-20 2012-06-20 富士通株式会社 Communication device in label switching network
US20100040368A1 (en) * 2008-08-14 2010-02-18 Verizon Corporate Services Group Inc. Method and system for managing off-net virtual connections
US8949285B2 (en) * 2008-09-19 2015-02-03 Ciena Corporation Systems and methods for handling performance monitoring data
CN101415005B (en) * 2008-11-24 2013-04-17 华为技术有限公司 Method, system and equipment for implementing business forwarding
CN101860769B (en) * 2009-04-07 2015-03-25 华为技术有限公司 Method, device and system for fusing IP and light
JP5210959B2 (en) * 2009-04-27 2013-06-12 株式会社日立製作所 Optical passive network system and operation method thereof
CN101621472B (en) * 2009-07-30 2012-04-18 杭州华三通信技术有限公司 Message transmission method and router
KR101294404B1 (en) * 2009-12-10 2013-08-23 한국전자통신연구원 Backbone edge switching apparatus, and method for packet processing thereof
CN102148738A (en) * 2010-02-05 2011-08-10 华为技术有限公司 Label distribution method, device and system for seamless multi-protocol label switching network
CN101848147B (en) 2010-04-21 2012-04-04 华为技术有限公司 Transfer method, device and system of SDH (Synchronous Digital Hierarchy)/Sonet section overhead byte
US20110302283A1 (en) * 2010-06-03 2011-12-08 Niclas Nors Methods And Arrangements In A Passive Optical Network
US9832107B2 (en) * 2010-06-10 2017-11-28 Infinera Corporation Misconnection avoidance on networks
EP2437442B1 (en) * 2010-09-30 2013-02-13 Alcatel Lucent Device and method for switching data traffic in a digital transmission network
US9001827B2 (en) * 2010-12-17 2015-04-07 Big Switch Networks, Inc. Methods for configuring network switches
US20120207170A1 (en) * 2011-02-16 2012-08-16 Alcatel-Lucent Canada, Inc. Virtual private lan service packet processing
US9065723B2 (en) 2011-04-04 2015-06-23 Jds Uniphase Corporation Unaddressed device communication from within an MPLS network
US8467375B2 (en) * 2011-07-07 2013-06-18 Ciena Corporation Hybrid packet-optical private network systems and methods
US9819546B2 (en) 2011-07-07 2017-11-14 Ciena Corporation Data connectivity systems and methods through packet-optical switches
US8965209B2 (en) * 2011-07-07 2015-02-24 Adtran, Inc. Systems and methods for extending optical network services across non-optical channels
US9148223B2 (en) * 2011-07-07 2015-09-29 Ciena Corporation Ethernet private local area network systems and methods
CN102630384B (en) 2011-12-07 2016-03-09 华为技术有限公司 A kind ofly in optical transfer network, realize method that business transmits and realize equipment and the system of the method
WO2013134810A1 (en) * 2012-03-12 2013-09-19 Zeptoip Pty Ltd A network device and a method for networking
US9225664B2 (en) * 2013-03-15 2015-12-29 Alcatel Lucent System and method for aggregating pseudowires
US9246799B2 (en) * 2013-05-10 2016-01-26 Cisco Technology, Inc. Data plane learning of bi-directional service chains
US10361946B2 (en) * 2013-05-23 2019-07-23 Infinera Corporation Methods and systems for determining data transport paths through data transport
US9178812B2 (en) 2013-06-05 2015-11-03 Cisco Technology, Inc. Stacking metadata contexts for service chains
US9444675B2 (en) 2013-06-07 2016-09-13 Cisco Technology, Inc. Determining the operations performed along a service path/service chain
KR102129481B1 (en) * 2013-06-27 2020-07-02 에스케이텔레콤 주식회사 Method for processing data in content delivery system and apparatus thereof
US9621968B2 (en) * 2013-11-11 2017-04-11 Infinera Corporation Multi layer, multi vendor, multi domain, applications for software defined networking enabled networks
US9819551B2 (en) 2013-11-20 2017-11-14 Big Switch Networks, Inc. Systems and methods for testing networks with a controller
CN104660478B (en) * 2013-11-22 2018-05-25 华为技术有限公司 A kind of method and apparatus for realizing that data flow concatenates between tunnel
US9577927B2 (en) * 2014-06-30 2017-02-21 Nicira, Inc. Encoding control plane information in transport protocol source port field and applications thereof in network virtualization
US9813312B2 (en) 2014-07-21 2017-11-07 Big Switch Networks, Inc. Systems and methods for performing debugging operations on networks using a controller
CN107786465B (en) 2016-08-27 2021-06-04 华为技术有限公司 Method and device for processing low-delay service flow
US10511582B2 (en) 2017-04-07 2019-12-17 Fujitsu Limited Simplified encryption key generation in optical networks
US10469459B2 (en) * 2017-04-07 2019-11-05 Fujitsu Limited Use of optical transport network overhead data for encryption
US10511629B2 (en) 2017-04-07 2019-12-17 Fujitsu Limited Encryption control in optical networks without data loss
US10887289B2 (en) 2018-08-21 2021-01-05 Fujitsu Limited Encryption in optical transport networks using multiple randomly selected keys
CN112887117B (en) * 2019-11-29 2023-09-19 中国移动通信有限公司研究院 Method, equipment and medium for accessing and configuring network slice
CN112633821B (en) * 2020-12-11 2023-08-22 浙江百应科技有限公司 Line management method and device
US11689453B2 (en) 2021-03-29 2023-06-27 Cisco Technology, Inc. Layer 2 virtual private network traffic steering over optical transport networks
US11792042B1 (en) 2021-04-29 2023-10-17 Cisco Technology, Inc. Interworking between different layer two medias using network tunnels
CN113840188B (en) * 2021-09-29 2023-05-12 中国电子科技集团公司第三十四研究所 Device and method for transmitting Ethernet data by using DCC overhead

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20020097730A1 (en) * 2001-01-25 2002-07-25 Cresent Networks, Inc. Network device virtual Interface
US20040066779A1 (en) * 2002-10-04 2004-04-08 Craig Barrack Method and implementation for context switchover
US6721335B1 (en) * 1999-11-12 2004-04-13 International Business Machines Corporation Segment-controlled process in a link switch connected between nodes in a multiple node network for maintaining burst characteristics of segments of messages
US20040081203A1 (en) * 2002-07-16 2004-04-29 Enterasys Networks, Inc. Apparatus and method for a virtual hierarchial local area network

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6094437A (en) * 1998-10-09 2000-07-25 Asc - Advanced Switching Communications Layer two tunneling protocol (L2TP) merging and management
US6654808B1 (en) * 1999-04-02 2003-11-25 Lucent Technologies Inc. Proving quality of service in layer two tunneling protocol networks
US6614791B1 (en) * 1999-05-11 2003-09-02 Nortel Networks Limited System, device, and method for supporting virtual private networks

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6721335B1 (en) * 1999-11-12 2004-04-13 International Business Machines Corporation Segment-controlled process in a link switch connected between nodes in a multiple node network for maintaining burst characteristics of segments of messages
US20020097730A1 (en) * 2001-01-25 2002-07-25 Cresent Networks, Inc. Network device virtual Interface
US20040081203A1 (en) * 2002-07-16 2004-04-29 Enterasys Networks, Inc. Apparatus and method for a virtual hierarchial local area network
US20040066779A1 (en) * 2002-10-04 2004-04-08 Craig Barrack Method and implementation for context switchover

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
XIAO: "Draft-ietf-pwe3-requirements-03.txt", June 2002 (2002-06-01), XP015003168 *

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