WO2006095412A1 - ネットワーク情報解析方法及びその装置 - Google Patents
ネットワーク情報解析方法及びその装置 Download PDFInfo
- Publication number
- WO2006095412A1 WO2006095412A1 PCT/JP2005/003943 JP2005003943W WO2006095412A1 WO 2006095412 A1 WO2006095412 A1 WO 2006095412A1 JP 2005003943 W JP2005003943 W JP 2005003943W WO 2006095412 A1 WO2006095412 A1 WO 2006095412A1
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- WO
- WIPO (PCT)
- Prior art keywords
- line
- transmission
- management
- code information
- management code
- Prior art date
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Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L41/00—Arrangements for maintenance, administration or management of data switching networks, e.g. of packet switching networks
- H04L41/06—Management of faults, events, alarms or notifications
- H04L41/0677—Localisation of faults
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L41/00—Arrangements for maintenance, administration or management of data switching networks, e.g. of packet switching networks
- H04L41/04—Network management architectures or arrangements
- H04L41/042—Network management architectures or arrangements comprising distributed management centres cooperatively managing the network
Definitions
- the present invention relates to a network information analysis method and apparatus, and more particularly to a network information analysis method and apparatus for analyzing a network state configured by combining non-IP type transmission apparatuses.
- Private networks are non-IP that do not use IP (Internet Protocol) such as PDH (Plesiochronous Digital Hierarchy), SDH (Synchronous Digital Hierarchy), etc.
- IP Internet Protocol
- PDH Plesiochronous Digital Hierarchy
- SDH Synchronous Digital Hierarchy
- a network is configured by combining different types of transmission equipment.
- Patent Document 1 an identifier for identifying each wavelength or path accommodated in a WDM optical communication line is assigned to a frame for each wavelength, whereby the wavelength or nox at which a failure has occurred. It is described that it is specified and displayed on the screen.
- Patent Document 2 in a network in which a plurality of stations are connected to each other, a frame with an identifier is transmitted from the start station, and this is confirmed by the end station, thereby confirming the normality of the communication path. It will be described.
- Patent Document 1 JP 2001-217901 A
- Patent Document 2 JP-A-8-130559 Disclosure of the invention
- the user manages, maintains, and updates the communication route for each line and the free capacity of the transmission path from the detailed design information (which device and which signal is passed) obtained from each transmission device manufacturer. Is not easy.
- the present invention has been made in view of the above points, and network analysis such as searching for a communication route of a signal passing through a network, determining a passing signal amount of a transmission device, and specifying a network fault location can be performed easily and at high speed. It is a general purpose to provide a network information analysis method and apparatus that can be used.
- a network information analysis method is a network information analysis method for analyzing a state of a network in which a plurality of transmission apparatuses are combined, and performs data communication between a transmission end and a reception end.
- a line identifier is assigned to each of the logical lines, line management code information including the line identifier is transmitted from a management apparatus to the transmission apparatus, and the transmission apparatus that has received the line management code information from the management apparatus receives the line management code.
- network analysis such as searching for a communication route of a signal passing through a network, determining a passing signal amount of a transmission device, and specifying a network fault location can be performed easily and at high speed.
- FIG. 1 is a configuration diagram of an embodiment of a network to which the method of the present invention is applied.
- FIG. 2 is a block diagram of an embodiment of a transmission apparatus applied to the method of the present invention.
- FIG. 3 is a block diagram of an embodiment of a relay unit provided in all transmission apparatuses including a relay apparatus applied to the method of the present invention.
- FIG. 4 is a functional block diagram of an embodiment of a management device.
- FIG. 5 is a functional block diagram of an embodiment of the management device 20.
- FIG.6 Multi-frame format of line management code information.
- FIG. 7 A display example of a communication route of a specific channel.
- FIG. 8 A display example of a communication route list.
- FIG. 9 A display example of the capacity summary list.
- FIG. 10 is a flowchart of fault identification processing.
- FIG. 11 A display example of the communication route at the time of failure.
- FIG. 12 A display example of a communication route list at the time of failure.
- FIG. 1 shows a configuration diagram of an embodiment of a network to which the method of the present invention is applied.
- the transmission device 11 is connected to the transmission device 15 via the transmission device 12, the relay device 13, and the transmission device 14, and the transmission device 11 passes through the transmission device 16, the relay device 17, and the transmission device 18.
- Transmission devices 11, 12, 14 and 16, 18 are non-IP type transmission devices such as SDH.
- the management transmitting / receiving unit 19 built in each transmission device and relay device is connected to the management device 20 via a communication line different from the transmission line of the network.
- the transmission terminal connected to the transmission device 11 and the reception terminal connected to the transmission device 15 pass through a communication path, for example, transmission devices 12, 13, and 14, A data communication path between the transmitting end and the receiving end is called a logical line, and the management device manages a line management code as a line identifier of each logical line constituting the network.
- FIG. 2 shows a block diagram of an embodiment of a transmission apparatus applied to the method of the present invention.
- a transmission line interface 21 receives multiple signals from a network transmission line and supplies them to a demultiplexing unit 22.
- the separation unit 22 separates the multiplexed signal and supplies each signal to the switch unit 23.
- Each signal switched by the switch unit 23 is multiplexed by the multiplexing unit 24 and sent to the transmission line of the network via the transmission line interface 25.
- the management transmission / reception unit 19 as management device transmission / reception means receives a signal supplied from the management device 20 and supplies the received line management code information to the selection unit 30.
- the selection unit 30 is supplied with the output signal of the terminal 31 as the transmission end.
- the management transmitting / receiving unit 19 causes the selection unit 30 to select the output signal of the terminal 31 in the normal mode, and in the maintenance 'alarm mode, the selection unit 30 causes the line management code to be selected. Select information.
- the signal selected by the selection unit 30 is supplied to the multiplexing unit 24 through the switch unit 23, multiplexed with other signals, and sent to the transmission line.
- the line management code information from the management device is sent to the corresponding logical line instead of the data from the terminal 31.
- the switch unit 23 supplies a signal to be output to the terminal to the selection unit 32.
- the selection unit 32 supplies a specific channel signal to the terminal 31 in the normal mode according to the operation mode instructed from the management transmission / reception unit 19, and in the maintenance / alarm mode, the specific channel signal is supplied to the line management code. Supply to the extraction unit 33.
- the line management code information extracted here is supplied to the management transmitting / receiving unit 19.
- the transmission / reception unit 19 for management transmits the line management code information and the device code as the device identifier of the own device to the management device 20. It should be noted that the device code of its own device is registered in advance in each transmission device (relay device).
- the transmission / reception unit 19, selection unit 30, 32, and line management code extraction unit are connected. 33 performs the above processing for each terminal.
- FIG. 3 shows a block diagram of an embodiment of a relay unit provided in all transmission apparatuses including the relay apparatus applied to the method of the present invention.
- the transmission path interface 41 receives the transmission path power multiplexed signal of the network and supplies it to the relay or switch section 42.
- the multiplexed signal amplified or switched by the relay or switch section 42 is the transmission path interface 43. Is sent to the network transmission line via.
- the relay or switch unit 42 performs amplification in the case of a relay device, and performs switching in the case of a transmission device.
- Relay units 44A and 44B are provided on the transmission line input side and transmission line output side of all transmission apparatuses including the relay apparatus, respectively.
- the demultiplexing units 45 of the relay units 44A and 44B demultiplex the multiplexed signals and supply them to the line management code extraction unit 46.
- the line management code extraction unit 46 extracts line management code information from each channel (line), and the extracted line management code information is transmitted from the management transmission unit 47 to the management apparatus 20.
- FIG. 4 shows the configuration of the line management code information stored in the management code DB (database) 50 in the management device 20.
- a line management code that is unique for the entire network is assigned with a predetermined bandwidth (eg, 64 Kbps) as one channel.
- Each identifier (code) of the transmitting device (transmission device), receiving device (transmission device), transmitting terminal, receiving terminal, and passing device (transmission device and relay device) is added to the management code DB. It will be registered in advance. The above registration information is registered based on detailed design information obtained from the transmission equipment manufacturer.
- the “h” attached to the line management code indicates that it is displayed in hexadecimal.
- FIG. 5 shows a functional block diagram of an embodiment of the management device 20.
- the read / code adding unit 51 reads the line management code information from the management code DB50 in the unit of the line management code in the maintenance 'alarm mode, and transmits the line direction code (upward Z down) according to the line management code.
- a device manufacturer code, a transmission terminal code, a reception terminal code, a transmission device code, and a reception device code corresponding to the device are added and supplied to the management code transmission unit 52.
- the management code transmission unit 52 transmits the line management code information to the transmission apparatus specified by the transmission apparatus code in the line management code information.
- the management code receiving unit 53 transmits each of the transmissions constituting the network during the maintenance 'alarm mode.
- Device and relay device power Management code comparison unit that receives transmitted line management code information
- the management code comparison unit 54 compares the line management code of the received line management code information with the line management code registered in the management code DB 50, and compares the line management code information received together with the comparison result into the route analysis unit. 55, capacity totaling unit 56, fault identification unit 57, DB update unit 58.
- FIG. 6 shows a multiframe format of line management code information.
- the line management code information is 8 bits per frame and 8 frames.
- the first frame is a frame bit for synchronizing a predetermined bit pattern.
- the second-fourth frame is set with a 24-bit line management code
- the next fifth frame is set with a transmitting terminal code and a receiving terminal code
- the sixth frame is set with a line direction code (2 bits).
- Device manufacturer code (6 bits) is set.
- the transmitter code and the receiver code are set
- the NORITY bit for the first seventeenth frame is set.
- the management code transmission unit 52 stores the line management code information. Divide into 8 frames and transmit sequentially. Further, the line management code receiving unit 53 accumulates data for 8 frames, and supplies the data to the management code comparing unit 54 after establishing synchronization and checking the parity.
- the route analysis unit 55 collects the received line management code information for each line management code by the transmission equipment and the relay equipment constituting the network, so that the communication route that is the transmission path of the specific channel or each channel
- the communication route list is displayed on the screen by the screen output unit 59.
- the specific channel is specified by inputting a specific line management code from an input device such as a keyboard of the management device 20.
- FIG. 7 shows a display example of a communication route of a specific channel.
- a display screen 70 displays a network composed of transmission devices 11, 12, 14, 16, 18 and intermediate devices 13, 17 and an arrow 71 indicating a communication route.
- This arrow 71 indicates the communication route of a specific channel having a specific line management code, that is, the communication route of the terminal T1, the transmission device 11, 12, the relay device 13, the transmission device 14, 51, and the terminal ⁇ 2.
- FIG. 8 shows a display example of the communication route list.
- the communication route list includes a transmission device, a reception device, a passing device, a device manufacturer code (transmission device), a transmission terminal code, a reception terminal code, and a line direction code for each line management code.
- the capacity totaling unit 56 collects the line management code information received from the transmission device and the relay device for each transmission device. For a specific transmission device, when the transmission terminal and reception terminal included in the line management code information have the same channel, they are combined into one, and the line management code and transmission capacity are combined. By the way, the transmission capacity is summarized by adding.
- a specific transmission device is designated by inputting the specific transmission device from an input device such as a keyboard of the management device 20. Accordingly, the capacity totaling unit 56 displays the capacity totaling list on the screen by the screen output unit 59.
- FIG. 9 shows a display example of the capacity summary list.
- this summary list relates to the transmission apparatus a.
- the first line is the communication of route 1 (uplink) from the transmitting terminal al to the receiving terminal cl, the transmission device a is transmitting, the line management code is “00001h”, and the transmission capacity is 64K bps. Is shown.
- the second line is a route 1 (uplink) communication from the sending terminal bl to the receiving terminal d3.
- the transmission device a is transmitting, and the line management code is 6 channels “00002h-7h”.
- the transmission capacity for 6 channels is 384Kbps.
- the total transmission capacity of each row is displayed as a used capacity of 7.08 Mbps, and the difference from the maximum transmission capacity of the transmission apparatus a that the management apparatus 20 has is displayed as a free capacity of 114 Mbps.
- the fault identification unit 57 identifies the fault occurrence position based on the line management code information received from the transmission apparatus and the relay apparatus.
- FIG. 10 shows a flowchart of the failure identification process executed by the management apparatus 20. This process is executed in maintenance 'alarm mode.
- the management code transmitter 52 transmits the line management code information of the specific channel to the transmission apparatus specified by the transmission apparatus in the line management code information.
- step S11 the management code receiving unit 53 receives the line management code information to which each transmission device or relay device power is also transmitted, and in step S13, the management code comparing unit 54 receives each received transmission device or Manage the line management code of the line management code information of the relay device power. Compare with the line management code registered in DB50.
- step S14 If the comparison result is coincident, the process proceeds to step S14, and the arrow 71 in the communication route display is displayed in blue up to the position of the transmission device or relay device that is the transmission source of the line management code information, and the communication route is displayed.
- the corresponding transmission device or relay device is displayed as “OK” on the list.
- step S15 the process proceeds to step S15, and the arrow 71 in the communication route display is displayed in red up to the position of the transmission device or relay device that is the transmission source of the line management code information.
- the transmission device or relay device is displayed as “NG” on the communication route list.
- the communication route display as shown in FIG. 11 and the communication route list display as shown in FIG. 12 are displayed. Done.
- FIG. 11 shows a display example of a communication route at the time of failure.
- a display screen 70 displays a network composed of transmission devices 11, 12, 14, 16, 18 and intermediate devices 13, 17 and an arrow 71 indicating a communication route.
- This arrow 71 indicates the communication route of a specific channel having a specific line management code, that is, the communication route of terminal T1, transmission device 11, 12, relay device 13, transmission device 14, 51, terminal ⁇ 2, and the blue part 71a indicates the unaffected part, and red part 71b indicates the impaired part.
- FIG. 12 shows a display example of a communication route list at the time of failure.
- the communication route list includes a transmission device, a reception device, a passing device, a device manufacturer code transmission terminal code, a reception terminal code, and a line direction code for each line management code.
- “j” is displayed for hj and “00002h”, the line management codes “00003h” and “00004 hj! /, and“ OK ”are displayed!
- the DB update unit 58 assigns the line management code of the above channel on the management code DB50, and transmits a transmission device (transmission device) to the assigned line management code. ), Receiving device (transmission device), transmitting terminal, receiving terminal, passing device (transmission device and relay device) are specified and registered.
- the DB update unit 58 registers the line management code information in response to an instruction from a host device (not shown). The By registering the transmission device (transmission device), reception device (transmission device), transmission terminal, reception terminal, data amount, and passing device (transmission device and relay device), the management code DB50 uses the line management code of the above channel. Perform automatic allocation. If no passing device is specified, it is determined from the free capacity of each transmission device, and the DB updating unit 58 automatically determines the passing device and registers it.
- the management transceiver 19 corresponds to the management device transmission / reception means described in the claims
- the selection section 30 corresponds to the line management code information transmission means
- the line management code extraction sections 33, 46 correspond to the line management code information.
- management transmitting / receiving section 19 corresponds to line management code information transmitting means
- management code transmitting section 52 corresponds to transmitting means
- management code receiving section 53 serves as receiving means.
- Management code comparison unit 54, route analysis unit 55, capacity totaling unit 56, fault identification unit 57 correspond to analysis means
- route analysis unit 55 corresponds to route analysis unit
- capacity totaling unit 56 has capacity
- the fault identification unit 57 corresponds to the fault identification means.
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Abstract
Description
Claims
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
PCT/JP2005/003943 WO2006095412A1 (ja) | 2005-03-08 | 2005-03-08 | ネットワーク情報解析方法及びその装置 |
JP2007506945A JP4361114B2 (ja) | 2005-03-08 | 2005-03-08 | ネットワーク情報解析方法及びその装置 |
US11/842,334 US8305909B2 (en) | 2005-03-08 | 2007-08-21 | Network information analyzing method and apparatus |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
PCT/JP2005/003943 WO2006095412A1 (ja) | 2005-03-08 | 2005-03-08 | ネットワーク情報解析方法及びその装置 |
Related Child Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US11/842,334 Continuation US8305909B2 (en) | 2005-03-08 | 2007-08-21 | Network information analyzing method and apparatus |
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Publication Number | Publication Date |
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WO2006095412A1 true WO2006095412A1 (ja) | 2006-09-14 |
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ID=36953023
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PCT/JP2005/003943 WO2006095412A1 (ja) | 2005-03-08 | 2005-03-08 | ネットワーク情報解析方法及びその装置 |
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US (1) | US8305909B2 (ja) |
JP (1) | JP4361114B2 (ja) |
WO (1) | WO2006095412A1 (ja) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
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JP5884964B2 (ja) * | 2010-10-22 | 2016-03-15 | 株式会社リコー | 伝送システム、及び伝送方法 |
US8665312B2 (en) * | 2010-12-06 | 2014-03-04 | Ricoh Company, Ltd. | Apparatus, system, and method of managing data transmission, and transmission management program |
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JPH08139730A (ja) * | 1994-11-08 | 1996-05-31 | Nippon Telegr & Teleph Corp <Ntt> | 通信ネットワークにおける論理回線の切替方法 |
JP2002084249A (ja) * | 2000-09-08 | 2002-03-22 | Fujitsu Ltd | 集中管理装置 |
JP2003152721A (ja) * | 2001-11-13 | 2003-05-23 | Hitachi Ltd | ネットワークシステム障害分析支援方法およびその方式 |
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GB9403223D0 (en) * | 1994-02-19 | 1994-04-13 | Plessey Telecomm | Telecommunications network including remote channel switching protection apparatus |
US5668800A (en) * | 1994-05-02 | 1997-09-16 | International Business Machines Corporation | Path testing in communications networks |
JPH0897841A (ja) * | 1994-09-29 | 1996-04-12 | Hitachi Ltd | パス切替伝送装置の制御方法及びパス切替伝送装置 |
JPH08130559A (ja) | 1994-10-31 | 1996-05-21 | Matsushita Electric Ind Co Ltd | フレームリレー局間通信路確認装置及び方法 |
DE19616286A1 (de) * | 1996-04-24 | 1997-10-30 | Sel Alcatel Ag | Synchrones Übertragungssystem mit Fehlerortungsfunktion und Monitoreinrichtung dafür |
US6104702A (en) * | 1998-03-06 | 2000-08-15 | Lucent Technologies Inc. | Apparatus and method for extending operation of non-intrusive monitors in SDH |
JP3782229B2 (ja) * | 1998-03-13 | 2006-06-07 | 富士通株式会社 | パス情報構築方法 |
JP3485250B2 (ja) * | 1999-02-17 | 2004-01-13 | 富士通株式会社 | 従属同期装置及び該従属同期装置を有するsdh装置 |
JP2001217901A (ja) | 2000-02-01 | 2001-08-10 | Fujitsu Ltd | 光伝送ネットワークにおける光パス経路管理装置及び方法 |
US7426179B1 (en) * | 2000-03-17 | 2008-09-16 | Lucent Technologies Inc. | Method and apparatus for signaling path restoration information in a mesh network |
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US20050099951A1 (en) * | 2003-11-10 | 2005-05-12 | Nortel Networks Limited | Ethernet OAM fault detection and verification |
US7783194B2 (en) * | 2004-12-13 | 2010-08-24 | Ciena Corporation | Method and apparatus for provisioning optical services on an optical network |
-
2005
- 2005-03-08 JP JP2007506945A patent/JP4361114B2/ja not_active Expired - Fee Related
- 2005-03-08 WO PCT/JP2005/003943 patent/WO2006095412A1/ja not_active Application Discontinuation
-
2007
- 2007-08-21 US US11/842,334 patent/US8305909B2/en not_active Expired - Fee Related
Patent Citations (3)
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JPH08139730A (ja) * | 1994-11-08 | 1996-05-31 | Nippon Telegr & Teleph Corp <Ntt> | 通信ネットワークにおける論理回線の切替方法 |
JP2002084249A (ja) * | 2000-09-08 | 2002-03-22 | Fujitsu Ltd | 集中管理装置 |
JP2003152721A (ja) * | 2001-11-13 | 2003-05-23 | Hitachi Ltd | ネットワークシステム障害分析支援方法およびその方式 |
Also Published As
Publication number | Publication date |
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JPWO2006095412A1 (ja) | 2008-08-14 |
US20070288624A1 (en) | 2007-12-13 |
US8305909B2 (en) | 2012-11-06 |
JP4361114B2 (ja) | 2009-11-11 |
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