WO2006094430A1 - Systeme d'echange de circuit - Google Patents

Systeme d'echange de circuit Download PDF

Info

Publication number
WO2006094430A1
WO2006094430A1 PCT/CN2005/000272 CN2005000272W WO2006094430A1 WO 2006094430 A1 WO2006094430 A1 WO 2006094430A1 CN 2005000272 W CN2005000272 W CN 2005000272W WO 2006094430 A1 WO2006094430 A1 WO 2006094430A1
Authority
WO
WIPO (PCT)
Prior art keywords
switching
control
subsystem
exchange
routing
Prior art date
Application number
PCT/CN2005/000272
Other languages
English (en)
Chinese (zh)
Inventor
Wenhui Cai
Tao Xiong
Chen Wu
Xinghua Li
Original Assignee
Zte Corporation
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 Zte Corporation filed Critical Zte Corporation
Priority to PCT/CN2005/000272 priority Critical patent/WO2006094430A1/fr
Publication of WO2006094430A1 publication Critical patent/WO2006094430A1/fr

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L45/00—Routing or path finding of packets in data switching networks
    • H04L45/02—Topology update or discovery

Definitions

  • the present invention relates to a routing switching system in the field of communications, and more particularly to a routing switching system for use in packet data routing switching and telecommunications packet data bearer networks. Background technique
  • the capacity of the router used in data communication has reached the T-bit level, and the switching capacity can meet the application of the future metropolitan or provincial network.
  • the number of queues can reach 100.
  • the tens of thousands of levels can also meet the application requirements of the WAN, especially the metropolitan area network.
  • 1 is a schematic structural diagram of an IP backbone network 15 according to the prior art.
  • the backbone network 15 includes a plurality of edge routers 151 and a core router 152, and the edge router 151 is connected to the access network 12.
  • the packet data packet of the sending end enters the backbone network 15 through the access network 12, and the message passes through the multi-hop route of the "edge 151 - core router 152 - edge router 151"" to reach the access of the receiving end.
  • the end-to-end data transmission is completed.
  • This network architecture has two main drawbacks: The network is based on multi-hop packet switching, and the delay of end-to-end data transmission is uncertain, resulting in a decline in network performance. Second, a large number of routers are used in the network. This will result in a network-wide topology becoming a fully interconnected (Mesh) architecture, resulting in end-to-end quality of service (QoS) performance that is more difficult to guarantee.
  • Mesh fully interconnected
  • QoS quality of service
  • the current routing switching equipment is basically a multi-rack system with single-rack system or short-distance interconnection.
  • a single network is implemented within the domain.
  • the expansion of the network generally adopts the scheme of adding new nodes.
  • the link bandwidth of the entire network does not necessarily meet the requirements of traffic development.
  • too many nodes are added, which will seriously increase the complexity of the network topology.
  • Sexuality the transmission delay and delay jitter of service data cannot be effectively controlled, which is not conducive to the stable operation of the network, and increases the difficulty of network planning and operation and maintenance.
  • the network structure of a multi-rack routing switch device based on single-rack or short-distance interconnection also affects the unified management of network resources and system resources.
  • More control protocols need to be introduced to manage network resources, resulting in increased complexity of network management, business resources being occupied by more protocols, and end-to-end service quality issues not being fundamentally resolved.
  • the granularity of business management is rough, and the management of point-to-point (P2P) services cannot be completed.
  • NGN Next Generation Network
  • the present invention has been made in view of the above technical problems of the prior art, and an object thereof is to provide a new routing switching system to overcome the defects of the prior art routing switching device networking.
  • the routing switching system of the present invention includes:
  • At least one service processing subsystem configured to process the accessed message data and forward the message; at least one central switching subsystem, configured to implement message data exchange between the service processing subsystems, and manage the entire system Resource
  • the central switching subsystem includes:
  • a first transmission device configured to send and receive message data and control interaction with the service processing subsystem
  • At least one switching device configured to exchange message data distributed by the first transmitting device; and a first control device, configured to control the switching device to complete exchange of message data;
  • the service processing subsystem includes:
  • a second transmitting device configured to send and receive message data and control interaction information with the first transmitting device
  • User equipment used to implement packet processing and exchange processing of the user
  • a management device configured to process a local protocol, and manage resources of the user equipment application
  • a second control device configured for network management, and configured to the user equipment and the second transmission Prepare for configuration and supervision.
  • the first control device further includes:
  • An exchange information control module configured to control exchange of message data of the switching device;
  • a system state control module configured to collect and control an operating state of the entire system;
  • a network resource management module for managing and controlling the planning and allocation of network resources in the system.
  • the first control device further includes: a service resource control module, configured to manage planning and allocation of service resources in the system.
  • the first control device further includes: a network management module, configured to manage and collect information of the network.
  • a network management module configured to manage and collect information of the network.
  • the user equipment further includes:
  • a packet processing module configured to perform access control and processing on the packet data received by the external access system, and forward the packet data to the switching processing module, and forward the packet data received from the switching processing module to the external access system;
  • the switching processing module is configured to perform exchange control on the packet sent by the packet processing module, and forward the packet sent by the second transmitting device to the packet processing module, and simultaneously process the switching signaling.
  • the route switching system further includes: at least one interface subsystem, connected to the service processing subsystem, for accessing message data.
  • the system of the present invention is not only logically separated but also separated in physical location. This separation can realize the coverage widening and management unification of the present invention, enhance the network's ability to manage services and resources, reduce the processing of the 4 ⁇ text, achieve the effect of flat networking, and improve the network. Operationality reduces the cost of packet processing and forwarding.
  • the switching system is no longer a connection between multiple routers, and edge traffic is no longer limited by routers.
  • the link bandwidth can be processed at full line rate and exchanged without blocking in the entire network.
  • the present invention can achieve good results.
  • the system of the invention can be widely applied in the fields of data communication, wireless communication and the like.
  • FIG. 1 is a connection topology diagram of an IP backbone network in the prior art
  • FIG. 2 is a schematic diagram of a route switching system in accordance with an embodiment of the present invention.
  • FIG. 3 is a schematic diagram of a route switching system according to another embodiment of the present invention
  • FIG. 4 is a schematic diagram of a route switching system according to still another embodiment of the present invention
  • FIG. 6 is a schematic diagram of constructing a higher-level wide area network by using the routing switching system of the present invention as a lower-level device. detailed description
  • the basic idea of the present invention is: to learn from the open architecture of the "module-to-module-wide, in-module hierarchical control, centralized management" of the program-controlled switchboard, using an open type
  • the multi-module interconnection architecture changes the service processing and switching modules in a single rack or a large-disconnected multi-rack state, and adopts a fully separated and fully interconnected manner in which service processing and center switching are separated and switching modules are separated.
  • the route switching system includes a central switching subsystem 20 and a plurality of service processing subsystems 25 , and the central switching subsystem 20 and each service processing subsystem 25 are separately disposed.
  • the central switching subsystem 20 includes: a first transmitting device 201, and receiving and transmitting message data with the service processing subsystem 25 , transmitting the received message data to the switching device 203 described below, and simultaneously transmitting and receiving the following description.
  • the first control device 202 controls the interaction information; the first control device 202 manages and controls various resources of the entire routing system, and controls the switching device to complete the exchange of the message data, including: generating a data exchange control instruction and Send to the business processing subsystem 25, run protocols such as interconnection or routing, generate and maintain routing tables, collect networks
  • the information is calculated, the routing policy is calculated, the network resource is configured and delivered to the service processing subsystem 25, and the service resource is configured and delivered to the service processing subsystem 25, etc.; at least one switching device 203 performs data according to the instruction of the control device 202.
  • the exchange of message data can be carried out in the form of autonomous routing. That is, when the message data arrives at the switching network, the path between its input and output has been determined, and the exchange delay is determined; it can also be in the form of passive exchange. When the packet data arrives at the switching network, the switching network selects the switching path for the packet according to the current situation, and the switching delay is undeterminable.
  • the service processing subsystem 25 further includes: a second transmitting device 251, which is mutually transceived with the first transmitting device 201 of the central switching subsystem 20, and performs receiving and transmitting of message data and control interaction information; the user equipment 252, mainly completing the report Processing of access control, message processing, traffic management, and exchange control instructions of the text data; the second control device 253, implementing network management functions for the service processing subsystem 25, including downloading a routing table, distributing a policy, and collecting device status information And reporting, configuring, and supervising the user equipment 252 and the transmitting device 251 of the service processing subsystem 25; the management device 254, performing local protocol processing, and assisting the first control device 202 of the central switching subsystem 20 to perform service resource management, and management User i reserves the resources of the application 252. If possible, the resources of the second transmitting device 251 are also managed.
  • the service processing subsystem 25 can be located remotely from the central switching subsystem 20 or can be placed close to the central switching subsystem 20.
  • the service packet data sent by the user of the service provider is accessed by the access device of the existing network through the user equipment 252 of the service processing subsystem 25, and after the packet processing, traffic management, and exchange processing, the packet data is transmitted through the second transmission.
  • the device 251, the first transmitting device 201 is sent to the switching device 203 of the central switching subsystem 20, and the switching device 203 exchanges the message data, and outputs it to the corresponding output service processing subsystem 25 through the first transmitting device 201, and finally Output to the service receiving end user, thereby completing a basic end-to-end service packet data forwarding.
  • the user device 252 forwards the management device 254 and the second control device to the service processing subsystem 25. 253, then through the second transfer device 251.
  • the first transmitting device 201 is uploaded to the first control device 202 of the central switching subsystem 20.
  • the first control device 202 of the central switching subsystem 20 distributes the control management information to the service processing subsystem.
  • the second control device 253 and the management device 254 of 25 are then configured by the second control device 253 and the management device 254.
  • this is only the basic way of centralized control mode, and does not rule out the possibility of control and management plane distributed processing.
  • the service data processing plane, the management plane, and the control plane are separated in a comical manner.
  • the second control device 253 of the service processing subsystem 25, the management device 254, and the first control device 202 of the central switching subsystem 20 cooperate to manage and control various resources of the entire routing switching system. Since the resources of the system are unified management, information such as message exchange control, resource management, and network management generated by the first control device 202 is sent to the service processing subsystem 25, and the data channel and the control management data channel are transmitted. It can be separated on the physical link, that is, it can be transmitted by means of out-of-band transmission, or a unified physical link can be used, that is, transmission by in-band data multiplexing.
  • the routing subsystem of the embodiment may further include an interface subsystem 30 for accessing packet data, which is connected to the service processing subsystem 25 through a link.
  • the interface subsystem 30 can be a collection of various network interfaces, and the link interface with the service processing subsystem 25 can be, for example, Ethernet, SDH, Packet Over SDH (P0S), ATM, etc.
  • the interface can also be a high speed serial bus or a parallel bus.
  • the present embodiment uses a full separation and full interconnection method in which the service processing and the central switching are separated, and the switching modules are separated, and the service processing subsystem is distributed to the wide area or the metro area by the function of the transmitting device. It brings huge networking flexibility, greatly simplifies the complexity of the network structure, improves the delay of data forwarding and the determinism of delay jitter, and simplifies the complex network-wide QoS problem to the device QoS problem, improving the end-to-end End QoS performance.
  • the routing switching system may comprise a plurality of central switching subsystems 20 constituting a redundant central switching subsystem in the form of 1: 1, 1+1, n: l or n+1.
  • the central switching subsystem 20 may comprise a plurality of switching devices 203 constituting redundancy in the form of 1:1, 1+1, n: l or n+1.
  • the packet processed by the routing switching system in the embodiment shown in FIG. 2 is mainly a packet data packet, and the uplink processing procedure of the packet data is as follows.
  • the message data is accessed in user equipment 252 of service processing subsystem 20.
  • the user equipment 252 may further include: a message processing module 2523, a traffic management module 2522, and an exchange processing module 2521.
  • the message data first enters the message processing module 2523.
  • the function of the message processing module 2523 is to perform access control and corresponding processing on the received message data.
  • the packet processing module 2523 extracts the packet data from the input queue, separates the packet header information, such as the TTL field, the header checksum, the option field, the source address, and the destination address, and then checks whether each field satisfies the standard report.
  • the format of the packet is the IP packet, whether the packet header format is correct, whether fragmentation is required, whether it is a multicast packet, and whether the TTL field is 0 or not.
  • the message is specially marked and handed over as a special message to the second control device 253 of the service processing subsystem 25, if the special message needs to be submitted to the central switching subsystem 20
  • the first control device 202 processes the second control device 253 of the service processing subsystem 25 for transmission to the first control device 202 of the central switching subsystem 20 in-band or out-of-band. Then, the table data of the message data satisfying the check condition is checked.
  • the message processing module 2523 starts a route lookup process according to a selected route lookup algorithm, and obtains the address information of the next hop according to the destination address of the message.
  • look-up operations include lookup access control lists (ACLs), other QoS-related calculations, and look-up tables, such as measurements, priority lookups, and tri-color markers.
  • ACLs lookup access control lists
  • look-up tables such as measurements, priority lookups, and tri-color markers.
  • resource tables (such as routing tables, QoS-related tables) are generated and maintained by the management device 254 of the service processing subsystem 25 and the first control device 202 of the central switching subsystem 20.
  • the resource table is synchronized periodically or irregularly.
  • the traffic management module 2522 After the traffic management module 2522, it mainly completes the queue management and adjustment of the message. Degree. First, the traffic management module 2522 all packets buffer management according to certain rules, and according to the result message processing module 2523 calculates, according to the global resource status, policy information to certain rules packets into the queue manager, A queue management algorithm that contains some rules in the queue. Then, according to the global resource status, the message output scheduling between the queues is performed by using a certain rule, and the message is sent to the exchange processing module 2521.
  • the traffic management module 2522 Since the traffic management module 2522 needs to obtain the resource status of the whole system, the traffic management module 2522 manages and schedules a large number of queues, which may be hierarchical.
  • the system-wide resource status obtained by the traffic management module 2522 is managed and configured by the management device 254 of the service processing subsystem 25 and the first control device 202 of the central switching subsystem 20.
  • the exchange processing module 2521 processes the packet according to the exchange control command issued by the first control device 202 of the central switching subsystem 20. After the switch processing module 2521 receives the message data sent by the traffic management module 2522, the packet is cut into a cell (or directly in the form of a message), and is delivered according to the first control device 202 of the central switching subsystem 20. The exchange control signaling, the exchange packet header is added, and then the message is sent to the second transmission device 251.
  • the switch control command can be delivered directly through the inband link or through the outband control link.
  • Zi service processing subsystem 251 and the second transfer device 25 of the central exchange subsystem 201 mutually send and receive the first transfer device 20 mainly performs packet data exchange between the received service subsystem 20 and processing subsystem 25 and the center send.
  • the first transmitting device 201 and the second transmitting device 251 may use optical connecting devices or electrical connecting devices to complete the message data and control signals between the central switching subsystem 20 and the service processing subsystem 25.
  • the transmitting device 201 may be a transmission device such as fiber convergence to complete photoelectric conversion; and may also include functions such as transmission codec, serial/parallel conversion, transmission equalization, transmission protection, and convergence of low-speed optical signals. For example, dense wavelength division multiplexing equipment.
  • the second service processing subsystem 25125 of the delivery device having a packet (or cell) to exchange information header transmitted encoded, electro-optic, fiber aggregation and other operations, to exchange messages transmitted through the first transmission device 201 Switching device 203 to central switching subsystem 20.
  • the switching device 203 exchanges the messages to the corresponding output port without blocking based on the exchange header information.
  • the first control device 202 may further include for controlling the switching device to perform An exchange information control module for message data exchange, a system state control module for collecting and controlling the working state of the entire system, a service resource control module for managing the planning and allocation of service resources in the system, and a network for managing and controlling the system A network resource management module for planning and allocating resources, and a network management module for managing and collecting network information.
  • the downlink processing of the packet data is similar to the uplink.
  • the packet is forwarded from the central switching subsystem 20 to the service processing subsystem 25, and is decapsulated and reassembled by the switching processing module 2521 in the user equipment 252, and sent to the traffic management module. In 2522, the queue is entered into the output queue and finally sent to the receiving end user.
  • the route switching system has high scalability of switching capacity, and the DWDM device can distribute the service processing subsystem of the system to the metropolitan area and the wide area, which brings huge networking flexibility.
  • Sexuality greatly simplifies the complexity of the network structure, improves the delay of data forwarding and the certainty of delay jitter, and simplifies the complex network-wide QoS problem to the device QoS problem, improving end-to-end QoS performance.
  • the routing switching system according to another embodiment of the present invention is as shown in FIG. 3, and the same elements as those in FIG. 2 are denoted by the same reference numerals, and the description thereof will be omitted as appropriate.
  • the traffic management module 2522 and the exchange processing module 2521 in the user equipment 252 of the service processing subsystem 25 are disposed in the central switching subsystem 20, at which time the user equipment 252 in the service processing subsystem 25 Only the message processing module 2523 is included, so that the function of the user device 252 is only ⁇ access control and processing.
  • the traffic processing module 2522 and the exchange processing module 2521 in the central switching subsystem 20 and the user equipment 252 of the service processing subsystem 25 are not necessarily in a corresponding relationship, and there may be multiple service processing subsystems 25 The case of sharing the same module.
  • the functions of the respective constituent elements are unchanged.
  • FIG. 4 is a schematic diagram of a route switching system according to still another embodiment of the present invention, wherein the same components as those of FIG. 2 are denoted by the same reference numerals, and the description thereof will be omitted as appropriate.
  • the exchange processing module 2521 in the user equipment 252 of the service processing subsystem 25 is located in the central switching subsystem 20, and the user equipment 252 retains the traffic management module 2522 and the message processing module 2523.
  • the service processing subsystem 25 has no function of exchanging processing, and still has related functions such as message processing and traffic management.
  • the exchange processing module 2521 of the central switching subsystem 20 and the user equipment 251 of the service processing subsystem 25 do not necessarily have a one-to-one correspondence. There may be cases where a plurality of service processing subsystems 25 share an exchange processing module 2521. It can be seen from the above description that although the composition forms of the two embodiments have changed, the single processing flow and the unified resource management have not changed, and the process to be exchanged is relatively simple because the exchange processing is not separated. The exchange capacity upgrade capability is stronger.
  • the traffic of the control information on the physical link between the central switching subsystems is increased.
  • FIG. 5 is a schematic diagram of the construction of a metropolitan area network or a wide area network using the routing switching system of the present invention.
  • the entire backbone network 50 is similar to the basic architecture of the routing switching system of the present invention.
  • the present invention separates the service processing subsystem 25 from the central switching subsystem 20, which may be a remote subsystem device or a near-terminal system. Multiple central switching subsystems 20 can be included with the ability to share traffic and redundancy.
  • the service processing subsystem 25 completes the detachment and analysis, table lookup, traffic management and forwarding of the network, and the central switching subsystem 20 completes the non-blocking exchange of packet data, thus forming a single global routing and switching network.
  • the central switching subsystem 20 can also satisfy the smooth upgrade, and the routing switching system is centralized control.
  • FIG. 6 shows the use of the routing switching system of the present invention as a subordinate! ⁇ Schematic diagram of the device building a higher-level WAN.
  • the central switching subsystem 20 is connected to the core network switching device 41. Due to the simplification of the lower-level network equipment and the clear network structure, the wide-area network can still achieve the effects of simple control and unified management.
  • the hierarchical control system also simplifies the inter-domain control protocol, improving the utilization efficiency of the packet data network. For example, if the automatic switched optical network (AS0N) is used as the core network switching device 41, the resource management of the system does not need to span a large number of routing devices, and the unified management of resources can still be realized.
  • the network hierarchy structure the circuit switching domain routing strategy is simplified, greatly improving the cross-domain end-to-end data transmission control capabilities. Industrial applicability
  • the invention can be applied to the field of data communication 4 wireless communication, and can form a wide area packet data exchange network and a metropolitan area network.

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Data Exchanges In Wide-Area Networks (AREA)

Abstract

L'invention concerne un système d'échange de circuit qui comprend: au moins un sous-système de traitement de service permettant de traiter un message d'accès et de le transférer; au moins un sous-système d'échange central permettant d'échanger le message entre les sous-systèmes de traitement de message et la gestion des ressources du système intégral. Le sous-système d'échange central comprend: un dispositif de premier transfert, au moins un dispositif d'échange et un dispositif de première commande. Le sous-système de traitement de service comprend: un dispositif de second transfert, un dispositif d'utilisateur, un dispositif de gestion et un dispositif de seconde commande. Comparé à l'art, le traitement du service et l'échange de l'invention séparent non seulement en logique mais aussi en position physique. La séparation permet de couvrir une large zone et de gérer uniformément les échanges, d'améliorer la capacité du service de gestion de réseau et les ressources, de réduire le traitement du message, d'atteindre l'effet d'organiser le réseau sans contrainte, d'améliorer l'opérationnalisation du réseau, et de réduire le coût de transfert des messages.
PCT/CN2005/000272 2005-03-07 2005-03-07 Systeme d'echange de circuit WO2006094430A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PCT/CN2005/000272 WO2006094430A1 (fr) 2005-03-07 2005-03-07 Systeme d'echange de circuit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/CN2005/000272 WO2006094430A1 (fr) 2005-03-07 2005-03-07 Systeme d'echange de circuit

Publications (1)

Publication Number Publication Date
WO2006094430A1 true WO2006094430A1 (fr) 2006-09-14

Family

ID=36952933

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2005/000272 WO2006094430A1 (fr) 2005-03-07 2005-03-07 Systeme d'echange de circuit

Country Status (1)

Country Link
WO (1) WO2006094430A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112910670A (zh) * 2019-12-03 2021-06-04 中盈优创资讯科技有限公司 城域网网络扩容方法及装置

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2002032051A2 (fr) * 2000-10-12 2002-04-18 Signafor, Inc. Mecanisme de commutation evolue servant a assurer des communications tres rapides associees a une excellente qualite de service
US20020131400A1 (en) * 2001-01-24 2002-09-19 Tinsley Robert John Distributed signaling system 7 (SS7) message routing gateway
US20030048792A1 (en) * 2001-09-04 2003-03-13 Qq Technology, Inc. Forwarding device for communication networks
US6735190B1 (en) * 1998-10-21 2004-05-11 Lucent Technologies Inc. Packet transport method device utilizing header removal fields

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6735190B1 (en) * 1998-10-21 2004-05-11 Lucent Technologies Inc. Packet transport method device utilizing header removal fields
WO2002032051A2 (fr) * 2000-10-12 2002-04-18 Signafor, Inc. Mecanisme de commutation evolue servant a assurer des communications tres rapides associees a une excellente qualite de service
US20020131400A1 (en) * 2001-01-24 2002-09-19 Tinsley Robert John Distributed signaling system 7 (SS7) message routing gateway
US20030048792A1 (en) * 2001-09-04 2003-03-13 Qq Technology, Inc. Forwarding device for communication networks

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112910670A (zh) * 2019-12-03 2021-06-04 中盈优创资讯科技有限公司 城域网网络扩容方法及装置
CN112910670B (zh) * 2019-12-03 2023-04-28 中盈优创资讯科技有限公司 城域网网络扩容方法及装置

Similar Documents

Publication Publication Date Title
Das et al. Unifying Packet and Circuit Switched Networks with OpenFlow
EP2608459B1 (fr) Routeur, système de routeur de grappes virtuel et procédé d'établissement associé
Chlamtac et al. Scalable WDM access network architecture based on photonic slot routing
CN101605278B (zh) 分布式管控协同光网络中的自适应信令实现方法
WO2007090346A1 (fr) Système de commande, procédé d'émission de message de données, et dispositif de réseau eternet
US7912087B2 (en) Capacity variable link apparatus and capacity variable link setting method
CN109743211B (zh) 基于sdn的ip网络与光网络协同路径开通系统与方法
US20090122707A1 (en) Multi-layer cascading network bandwidth control
CN103986663A (zh) 数据中心及其实现数据处理的方法和网络控制器
Das et al. Unifying packet and circuit switched networks
EP2033377A1 (fr) Apprentissage de commande d'accès au support (mac) forcé dans des réseaux ethernet pontés
JP2003324473A (ja) 可変容量リンク装置及び可変容量リンク設定方法
WO2005011302A1 (fr) Procede de transformation entre une connexion permanente et une connexion commute dans un reseau optique
JP4588501B2 (ja) 通信カード及び通信方法
US20170012827A1 (en) Method and system for site interconnection over a transport network
CN107615721A (zh) 传输软件定义网络(sdn)‑逻辑链路聚合(lag)成员信令
WO2011120214A1 (fr) Routeur de groupe et procédé de routage de groupe
US9787607B2 (en) End-to-end provisioning of Ethernet Virtual Circuits
JP2008067085A (ja) パケット転送装置
JP5739960B2 (ja) パケット光ネットワークの宛先ノードに外部の光データパケットを提供する方法及びシステム
KR20180122513A (ko) Sdn 기반 네트워크 가상화 플랫폼의 네트워크 하이퍼바이저에서 트래픽 엔지니어링 방법 및 프레임워크
EP1983693A1 (fr) Interface de liaison dans une boucle rpr, procédé de mise en oeuvre et appareil
CN100373866C (zh) 跨越多域连接的网络故障恢复的方法
CN107483141B (zh) 以太网链路建立方法和控制器
CN101860769A (zh) 一种ip与光融合的方法、装置和系统

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application
NENP Non-entry into the national phase

Ref country code: DE

NENP Non-entry into the national phase

Ref country code: RU

WWW Wipo information: withdrawn in national office

Country of ref document: RU

122 Ep: pct application non-entry in european phase

Ref document number: 05714803

Country of ref document: EP

Kind code of ref document: A1

WWW Wipo information: withdrawn in national office

Ref document number: 5714803

Country of ref document: EP