WO2009074002A1 - Dispositif et procédé de mise en œuvre d'un canal de réseau de communication de signalisation et d'un réseau de communication de gestion - Google Patents
Dispositif et procédé de mise en œuvre d'un canal de réseau de communication de signalisation et d'un réseau de communication de gestion Download PDFInfo
- Publication number
- WO2009074002A1 WO2009074002A1 PCT/CN2008/000297 CN2008000297W WO2009074002A1 WO 2009074002 A1 WO2009074002 A1 WO 2009074002A1 CN 2008000297 W CN2008000297 W CN 2008000297W WO 2009074002 A1 WO2009074002 A1 WO 2009074002A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- ethernet
- interface
- network element
- optical
- frame
- Prior art date
- Legal status (The legal status 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 status listed.)
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Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04J—MULTIPLEX COMMUNICATION
- H04J3/00—Time-division multiplex systems
- H04J3/16—Time-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
- H04J3/1605—Fixed allocated frame structures
- H04J3/1611—Synchronous digital hierarchy [SDH] or SONET
- H04J3/1617—Synchronous digital hierarchy [SDH] or SONET carrying packets or ATM cells
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L12/00—Data switching networks
- H04L12/28—Data switching networks characterised by path configuration, e.g. LAN [Local Area Networks] or WAN [Wide Area Networks]
- H04L12/40—Bus networks
- H04L12/407—Bus networks with decentralised control
- H04L12/413—Bus networks with decentralised control with random access, e.g. carrier-sense multiple-access with collision detection [CSMA-CD]
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04J—MULTIPLEX COMMUNICATION
- H04J2203/00—Aspects of optical multiplex systems other than those covered by H04J14/05 and H04J14/07
- H04J2203/0001—Provisions 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
- H04J2203/0003—Switching fabrics, e.g. transport network, control network
- H04J2203/0026—Physical details
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04J—MULTIPLEX COMMUNICATION
- H04J2203/00—Aspects of optical multiplex systems other than those covered by H04J14/05 and H04J14/07
- H04J2203/0001—Provisions 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
- H04J2203/0073—Services, e.g. multimedia, GOS, QOS
- H04J2203/0082—Interaction of SDH with non-ATM protocols
- H04J2203/0085—Support of Ethernet
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04J—MULTIPLEX COMMUNICATION
- H04J3/00—Time-division multiplex systems
- H04J3/02—Details
- H04J3/12—Arrangements providing for calling or supervisory signals
Definitions
- the present invention relates to a synchronous digital system technology and an optical transmission system technology, and more particularly to an SCN and MCN channel implementation device for an optical transmission device and method.
- SDH/OTH device a Signaling Communication Network (SCN) and a Management Communication Network (MCN) are cores for implementing control signaling transmission and network management of an optical transmission device. platform.
- the traditional SCN and MCN channels generally use two high-level data link control (HDLC) buses of 2 Mbps to 8 Mbps to serve as communication channels between the network element control board (NCP) and each board.
- HDLC high-level data link control
- the optical transmission network element device uses a standard IP over PPP (Point-to-Point Protocol) method, that is, the IP data packet is encapsulated into a point-to-point protocol frame, and the network management signaling is transmitted through the MCN bearer channel, and ASON signaling is transmitted through the SCN bearer channel.
- IP over PPP Point-to-Point Protocol
- MCN bearer channel MCN bearer channel
- ASON signaling is transmitted through the SCN bearer channel.
- SDH Serial Digital Hierarchy
- OTH Optical Transport System
- VC3 VC4 granular service based on GMPLS (Generalized Multi-protocol Label Switching) protocol based on light Wavelength services and packet-based services, such as unified intelligent scheduling and protection recovery, have become the development trend of next-generation SDH technology and OTH technology.
- Ethernet is a widely used communication technology, with a large number of open protocols and a large number of chip support, but the prior art does not adopt Ethernet technology to implement SCN and MCN signaling channels. Therefore, the prior art has drawbacks and needs improvement.
- the object of the present invention is to provide an apparatus and method for implementing a signaling communication network and a communication communication network channel.
- the technical problem to be solved is how to implement the SCN and MCN signaling channels by using Ethernet technology, which can be used with the original
- the IP over PPP external interface is compatible, providing high bandwidth, low CPU load and bus multiplexing.
- the technical solution of the present invention is as follows: A device for implementing a signaling communication network and a communication network channel, wherein the network element control board and the at least one optical interface board connected through the Ethernet interface; The board is used to complete routing protocols, process or forward Ethernet packets.
- the optical interface card is used to insert and extract optical signals.
- the optical signals of different formats are adapted and forwarded.
- the network element control board includes a CPU unit, a layer 3 switching unit, and each signaling interface.
- the CPU unit is configured to configure and manage the layer 3 switching unit, and process the ether.
- the network packet is used to complete the routing protocol and forward the Ethernet packet.
- the Layer 3 switching unit includes a routing module, configured to associate an IP with a virtual local area network to implement fast forwarding of IP packets.
- the optical interface board includes an interface unit, an overhead processing unit, and an interface processing unit; the interface unit is configured to complete external connection, photoelectric conversion, and transmitting signals;
- the packet adaptation unit is configured to adapt and forward the optical signal of different formats, and the format of the optical signal is a PPP frame or an Ethernet frame.
- the device is configured to perform a point-to-point physical connection between the network element control board and each optical interface board through a backplane Ethernet interface.
- a method for implementing a signaling communication network and a communication network channel for a device including a network element control board and at least one optical interface board includes the following steps: Al, the optical interface board receives the optical signal and After the PPP is decapsulated, the external packet is encapsulated into an Ethernet frame, and the destination address and the virtual local area network identifier are added to the network element control board.
- the content of the frame includes at least one of a signaling communication network message or a management communication network.
- the network element control board receives the Ethernet frame, and determines that the content is an IP packet and its destination address.
- the method further includes the following sending step: Bl, the network element control board sends the Ethernet frame
- the optical interface board decapsulates the Ethernet frame
- the optical interface card is encapsulated into a PPP frame
- B3 according to the virtual local area network identifier, the PPP frame is inserted into the optical signal overhead. send.
- the method wherein: in step A1, when the Ethernet frame is encapsulated, related information is further added; the related information includes at least one of a source address, a label protocol identifier, an IP4 text type, or a frame check sequence.
- step A1 further performs the following steps: configuring the overhead location; the overhead location includes at least one of a data communication channel, an extended data communication channel, or a universal communication channel.
- the method, the decapsulating specifically includes the following steps: after performing frame delimitation, error detection, and extracting information, determining whether the encapsulated data is an IP packet, and then extracting an IP packet, otherwise extracting a PPP payload .
- FIG. 1 is a schematic structural view of an apparatus of the present invention
- FIG. 2 is a schematic diagram of an external network networking of the apparatus of the present invention
- FIG. 3 is a flow chart of signaling transmission of the method of the present invention
- the object of the present invention is to propose a novel apparatus and method for implementing SCN and MCN channels applied to an optical transmission device, by which the advantages of the Ethernet platform can be fully utilized to provide a high bandwidth and high quality SCN for the transmission equipment.
- MCN channel The present invention provides a device for implementing a signaling communication network and a communication channel for managing a communication network.
- the network element control board NCP of the optical transmission network element device is used as a processing core, and each optical interface board is used as an auxiliary processing unit, and the network element is controlled.
- a physical connection between the board and each optical interface card can be performed through the Ethernet interface on the backplane.
- the NE control board functions as the packet routing and processing core.
- the high-speed CPU unit and switching unit are integrated to complete the routing protocol and internal Ethernet. Network frame switching and interaction of external IP packets;
- Each optical interface card mainly completes packet buffering and adaptation processing in different frame formats inside and outside the optical transmission network element device.
- the device of the present invention includes a network element control board connected to an Ethernet interface and at least one optical interface board.
- the network element control board is used to complete routing protocols, process or forward Ethernet packets.
- the optical interface board is used for inserting and extracting the overhead of the optical signal, and adapting and forwarding the optical signal of different formats.
- the network element control board and each optical interface board can be connected to each other through a backplane Ethernet interface. If necessary, the network element control board and each optical interface can also be used.
- the boards are connected directly through the Ethernet interface and are set on a single board.
- the network element control board includes a CPU unit, a layer 3 switching unit, and each signaling interface; the CPU unit is configured to configure and manage the layer 3 switching unit, and process the Ethernet port;
- the Layer 3 switching unit is configured to complete routing and forwarding the Ethernet packet.
- the Layer 3 switching unit may include a routing module, configured to manage a routing table, and configure a relationship between the IP and the virtual local area network to associate the IP with the virtual local area network to implement fast forwarding of the IP4 message.
- the device of the optical interface includes an interface unit, an overhead processing unit, and a message adaptation unit; the interface unit is configured to complete external connection, photoelectric conversion, and transmit signals; and the overhead processing unit is configured to insert And the overhead of extracting the optical signal; the ⁇ : ⁇ text adaptation unit is configured to adapt and forward the optical signal packet of different formats, and the format of the optical signal packet is a PPP frame or an Ethernet frame.
- a single network element may specifically include the following units.
- CPU unit responsible for protocol and algorithm processing, located on the NCP board.
- Layer 3 switching unit responsible for Ethernet 4 ⁇ text forwarding, IP ⁇ ⁇ exchange, CPU unit through the corresponding communication interface to implement the configuration management of the switching unit and data exchange with the switching unit, located on the NCP board.
- the packet adaptation unit performs packet buffering and adaptation processing in different frame formats of the optical transmission network element device.
- One end of the packet buffer unit of each optical interface card passes the backplane Ethernet interface and the NCP single.
- the switch unit of the board implements a point-to-point physical connection.
- the other end of the packet buffer unit is connected to the overhead processing unit, and the buffer unit is located on the optical interface board.
- the overhead processing unit is configured to complete the extraction and insertion of the associated overhead bytes in the SDH/OTH frame structure, and is located on the optical interface board as an intermediate unit between the buffer unit and the interface unit.
- Interface unit Complete external fiber connection and corresponding optical/electrical conversion functions, etc., located on the optical connection ⁇ board.
- the internal Layer 3 switching network uses VLANs to isolate the data flows of each port.
- the routing table of the layer switching unit determines the relationship between the IP and the VLAN, so that the IP packet can be quickly forwarded, and the CPU is not required to participate in the forwarding action, thereby reducing the CPU speed pressure.
- the internal network of the transport network element is based on the pure Ethernet mode.
- the external signaling including the ECC gateway signaling and the ASON signaling, is required to use the optical interface card to complete the format of the IP/PPP frame and the Ethernet frame.
- Each optical interface is connected to a subnet.
- the transmission device internally isolates data frames between different subnets by means of VLANs or channels. The communication between external subnets needs to be configured through a three-layer exchange.
- the present invention also provides a method for implementing a signaling communication network and managing a communication network channel for use in the above apparatus.
- the device includes a network element control board and at least one optical interface board, and the network element control board and the optical interface board are connected through an Ethernet interface.
- the method includes the following steps of receiving signals.
- the optical interface receives the optical signal and extracts the overhead.
- the optical signal includes the SDH or OTH signal.
- the external signaling is encapsulated into the Ethernet frame.
- the destination address and the virtual local area network identifier are added to the network element. Control the board.
- the decapsulation may specifically include the following steps: after performing frame delimitation, error detection, and extracting information, determining whether the encapsulated data is an IP packet, and then extracting the IP packet, otherwise extracting the PPP payload.
- step A1 when the Ethernet frame is encapsulated, in addition to adding the destination address and the virtual local area network identifier, related information may be added; the related information includes at least a source address, a label, a protocol identifier, an IP packet type, or Frame School - one of the sequences.
- the content of the Ethernet frame includes at least one of a signaling communication network or a management communication network message, thereby implementing SCN and MSN channels.
- step A1 may further perform the following steps: configuring the overhead location; the overhead location includes at least one of a data communication channel, an extended data communication channel, or a universal communication channel.
- A2 The network element control board receives the Ethernet frame, determines that the content is an IP address, and the destination address is not the local network element, and then forwards to the destination address; otherwise, processes the content of the Ethernet frame.
- ECC network management signaling and ASON signaling are transmitted on the connection side of the device, and can be divided into the following steps.
- Step 1 The receiving unit of the interface unit of the optical interface receives the SDH or OTH signal, and extracts the SDH or OTH segment overhead through the overhead processing unit.
- the overhead location used therein can be configured by software, and the overhead location can be SDH DCC (Data Communication Channel), Extended DCC, or OTC GCC (Universal Communication Channel), and other overheads that the system configuration needs to extract.
- Step 2 The message adaptation unit performs PPP decapsulation of ECC/ASON signaling, completes frame delimitation, error detection, etc., if the encapsulated IP packet, extracts an IP packet, such as a encapsulated non-IP packet, Extract the PPP frame payload.
- the packet adaptation unit encapsulates the IP packet and the PPP frame payload into the Ethernet frame, and adds the Ethernet-related destination address, source address, TPID (tag protocol identifier), and VLAN ID (virtual ID).
- the proposed LAN identifier, Type, Ethernet FCS (Frame Check Sequence), etc., are sent out through the backplane Ethernet. Identifying another 1 J, wherein the Type VLAN ID for which the overhead channels may be used to distinguish packets IP and non-IP packets.
- Step 4 The Layer 3 switching unit of the NCP board receives and identifies the received Ethernet data frame. If the IP packet of the local network element is not the IP address, the packet is sent to the board. The CPU unit, otherwise forwarded according to the IP address, and forwards the IP packet through the port that the port is supposed to exchange and mark.
- Step 5 The CPU unit of the NCP board processes the data packets belonging to the local network element (ECC signaling and ASON signaling protocol operation). And, the method further includes the following sending step.
- the network element control board sends an Ethernet frame to the optical interface card.
- the optical interface card decapsulates the Ethernet frame and encapsulates the PPP frame into the PPP frame;
- Step 1 The CPU unit of the NCP board sends the MCN and SCN 4 packets of the Ethernet package to the switching unit.
- Step 2 The switching unit of the NCP board processes the 4 ⁇ message sent by the CPU unit and the IP packet forwarded by the fourth step of the receiving side according to the content of the message, and sends it to the corresponding port.
- Step 3 The optical interface board completes the decapsulation of the Ethernet frame, and after demarcation and VLAN information is presented, if the IP packet is encapsulated, the IP packet is extracted, such as a packaged non-IP packet. Then extract the PPP payload.
- Step 4 The ⁇ ⁇ adaptation unit encapsulates the IP packet and the PPP payload into a PPP frame, and sends the VLAN ID extracted according to the third step to the corresponding overhead processing unit.
- Step 5 The optical interface board overhead processing unit inserts the PPP frame into the SDH or OTH segment overhead and sends it out through the interface unit.
- the overhead used is the same as the receiving side and can be configured via software.
- FIG. 4 it is a schematic diagram of the SCN and MCN channels proposed in the present invention implemented in the device.
- the NCP board includes a CPU unit and a Layer 3 switching unit.
- the optical interface board includes a 4 ⁇ text adaptation unit and an SDH overhead processing and interface unit.
- the 4 ⁇ text adaptation unit mainly implements mutual conversion between the Ethernet frame and the PPP frame.
- Cache SDH Framer (Overhead Processing Unit) Enables the insertion and extraction of SDH overhead.
- An optical interface card can support multiple optical ports, that is, multiple DCCs.
- the backplane of the optical interface card is connected to the Layer 3 switching unit of the NCP board through the Ethernet physical layer chip (PHY). The bandwidth is 100M. Because the SDH NE device may have multiple optical interface cards, the NCP needs to provide multiple network ports to interconnect with the optical interface cards.
- the backplane Ethernet of the entire SDH network element device forms an end-to-end star. Network structure.
- the SDH Framer of the optical interface card in the SDH network element completes the SDH overhead of each optical port and sends it to the packet buffering and adaptation processing unit.
- the PPP data packet is de-frame buffered, it passes through the Ethernet.
- the framing process is performed, and the corresponding VLAN is sent to the corresponding backplane Ethernet port.
- the packet After passing the PHY chip on the NCP board, the packet is sent to the Layer 3 switching unit of the NCP board.
- the high-speed switch chip is the core, and an IP routing entry is established internally. The routing entry can be generated by the software through a routing protocol.
- the switch chip When the switch chip receives the data packet, it first confirms whether it is an IP packet, and the non-IP packet is directly sent to the CPU unit for processing. If the IP packet is an IP address and the destination IP address is the address of the node, it is also sent to the CPU unit of the node for processing. Otherwise, the switching unit sends it to the specified output port according to the routing entry.
- the required processing steps on the transmitting side are similar to those on the receiving side, except that the processing order is the reverse of the receiving side, and the present invention is not limited thereto. It is to be understood that those skilled in the art can make modifications and changes in the form of the above description, and all such modifications and changes are intended to fall within the scope of the appended claims.
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- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Data Exchanges In Wide-Area Networks (AREA)
Description
Claims
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1020107015171A KR101463289B1 (ko) | 2007-12-11 | 2008-02-03 | 시그널링 통신 네트워크와 통신 관리 네크워크 통로를 실현하는 장치 및 방법 |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200710125080.3 | 2007-12-11 | ||
| CN2007101250803A CN101188534B (zh) | 2007-12-11 | 2007-12-11 | 一种实现信令通讯网络和管理通讯网络通道的装置和方法 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO2009074002A1 true WO2009074002A1 (fr) | 2009-06-18 |
Family
ID=39480733
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/CN2008/000297 Ceased WO2009074002A1 (fr) | 2007-12-11 | 2008-02-03 | Dispositif et procédé de mise en œuvre d'un canal de réseau de communication de signalisation et d'un réseau de communication de gestion |
Country Status (3)
| Country | Link |
|---|---|
| KR (1) | KR101463289B1 (zh) |
| CN (1) | CN101188534B (zh) |
| WO (1) | WO2009074002A1 (zh) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108234263A (zh) * | 2017-12-29 | 2018-06-29 | 川铁电气(天津)股份有限公司 | 智能网络通信管理机 |
Families Citing this family (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101610124B (zh) * | 2008-06-19 | 2013-07-24 | 上海贝尔阿尔卡特股份有限公司 | 用于管理和控制光通信网络节点的方法与装置 |
| CN101938453A (zh) * | 2009-06-29 | 2011-01-05 | 中兴通讯股份有限公司 | 一种实现中央处理器与以太网进行数据传输的装置与方法 |
| CN102025529B (zh) * | 2010-08-04 | 2012-07-25 | 华信邮电咨询设计研究院有限公司 | 基于成本最优的智能光网络系统的业务路由选择方法 |
| CN101977336B (zh) * | 2010-11-24 | 2013-02-13 | 电子科技大学 | 基于布拉格衍射原理的光分组交换系统和方法 |
| CN102820946B (zh) * | 2011-06-07 | 2017-11-14 | 邳州高新区城市矿产研究院有限公司 | 一种传输设备及其主动发布自身信息的方法 |
| EP2820769B1 (en) * | 2012-03-02 | 2017-05-31 | Huawei Technologies Co., Ltd. | System and method for uplink transmission in a wireless network |
| CN103200467B (zh) * | 2013-03-14 | 2016-03-23 | 烽火通信科技股份有限公司 | 光网络设备中的网元协议报文传递装置及方法 |
| CN106161545A (zh) * | 2015-04-14 | 2016-11-23 | 中兴通讯股份有限公司 | 板间数据处理方法及装置 |
| CN106850175B (zh) * | 2015-12-07 | 2020-11-27 | 中兴通讯股份有限公司 | 一种共用ip地址的方法及装置 |
| CN110875862B (zh) | 2018-08-31 | 2022-07-19 | 中兴通讯股份有限公司 | 一种报文传输方法及装置、计算机存储介质 |
| CN112491569B (zh) * | 2019-09-11 | 2022-04-29 | 中国移动通信有限公司研究院 | 一种设备管理方法、装置、设备及计算机可读存储介质 |
| CN113840188B (zh) * | 2021-09-29 | 2023-05-12 | 中国电子科技集团公司第三十四研究所 | 一种利用dcc开销传输以太网数据的装置及方法 |
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| US20070140271A1 (en) * | 2005-12-21 | 2007-06-21 | Amante Shane M | Method and system for terminating SONET/SDH circuits in an IP network |
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- 2007-12-11 CN CN2007101250803A patent/CN101188534B/zh active Active
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- 2008-02-03 KR KR1020107015171A patent/KR101463289B1/ko active Active
- 2008-02-03 WO PCT/CN2008/000297 patent/WO2009074002A1/zh not_active Ceased
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| CN1250294A (zh) * | 1999-07-27 | 2000-04-12 | 邮电部武汉邮电科学研究院 | 以太网与同步数字体系或同步光网络融合的适配方法 |
| US20060083253A1 (en) * | 2004-10-15 | 2006-04-20 | Park Wan K | Home gateway system for providing optical communication packet data interface function and home broadcast service providing method using the same |
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| CN108234263A (zh) * | 2017-12-29 | 2018-06-29 | 川铁电气(天津)股份有限公司 | 智能网络通信管理机 |
Also Published As
| Publication number | Publication date |
|---|---|
| KR101463289B1 (ko) | 2014-11-18 |
| CN101188534A (zh) | 2008-05-28 |
| KR20100106467A (ko) | 2010-10-01 |
| CN101188534B (zh) | 2011-09-21 |
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