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WO2006030499A1 - Appareil d’interface de reseau, appareil de commande d’agencement de systeme et appareil de multiplexage d’acces de lignes numeriques d’abonnes - Google Patents

Appareil d’interface de reseau, appareil de commande d’agencement de systeme et appareil de multiplexage d’acces de lignes numeriques d’abonnes Download PDF

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Publication number
WO2006030499A1
WO2006030499A1 PCT/JP2004/013436 JP2004013436W WO2006030499A1 WO 2006030499 A1 WO2006030499 A1 WO 2006030499A1 JP 2004013436 W JP2004013436 W JP 2004013436W WO 2006030499 A1 WO2006030499 A1 WO 2006030499A1
Authority
WO
WIPO (PCT)
Prior art keywords
network interface
interface device
information
system configuration
subscriber line
Prior art date
Application number
PCT/JP2004/013436
Other languages
English (en)
Japanese (ja)
Inventor
Hiroshi Suda
Original Assignee
Fujitsu Access Limited
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 Fujitsu Access Limited filed Critical Fujitsu Access Limited
Priority to JP2006534983A priority Critical patent/JPWO2006030499A1/ja
Priority to PCT/JP2004/013436 priority patent/WO2006030499A1/fr
Publication of WO2006030499A1 publication Critical patent/WO2006030499A1/fr

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Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M11/00—Telephonic communication systems specially adapted for combination with other electrical systems
    • H04M11/06—Simultaneous speech and data transmission, e.g. telegraphic transmission over the same conductors
    • H04M11/062—Simultaneous speech and data transmission, e.g. telegraphic transmission over the same conductors using different frequency bands for speech and other data
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L12/00—Data switching networks
    • H04L12/66—Arrangements for connecting between networks having differing types of switching systems, e.g. gateways
    • 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
    • H04L41/08—Configuration management of networks or network elements
    • H04L41/0803—Configuration setting
    • H04L41/0813—Configuration setting characterised by the conditions triggering a change of settings
    • H04L41/082—Configuration setting characterised by the conditions triggering a change of settings the condition being updates or upgrades of network functionality
    • 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
    • H04L41/08—Configuration management of networks or network elements
    • H04L41/085—Retrieval of network configuration; Tracking network configuration history
    • H04L41/0853—Retrieval of network configuration; Tracking network configuration history by actively collecting configuration information or by backing up configuration information
    • H04L41/0856—Retrieval of network configuration; Tracking network configuration history by actively collecting configuration information or by backing up configuration information by backing up or archiving configuration information

Definitions

  • Network interface device system configuration control device, and digital subscriber line access multiplexing device
  • the present invention is used in an interface between individual digital subscriber lines and a backbone network in an exchange that accommodates subscribers via subscriber lines shared as digital subscriber lines.
  • a network interface device arranged redundantly, a system configuration device that performs system configuration of these network interface devices, and a digital subscription configured by including a plurality of the network interface devices described above together with the system configuration device This relates to a line multiplexing device.
  • DSLAM Digital Subscriber Line Access Multiplexer
  • FIG. 8 is a diagram showing a configuration example of facilities in a home and a telephone station that realize provision of a data communication service via a digital subscriber line.
  • the facilities provided in the subscriber's premises 10-1-10-n are connected to the telephone station 30 via the subscriber lines 21-1-21-n, respectively. Connected to ark 50.
  • the equipment provided in the home 10-1 is composed of the following elements.
  • ADSL module connected to the other terminal of the splitter 11-1 (hereinafter referred to as the “high-frequency terminal”).
  • PC Personal computer
  • the telephone station 30 includes the following elements.
  • splitter 31-1 Digital subscriber line access multiplexer (DSLAM) connected to the other terminal of 31-n (hereinafter referred to as “high band terminal”) 40
  • DSLAM Digital subscriber line access multiplexer
  • a router 33 connected in cascade to the multiplexing unit 32 and connected to the above-described knockbone network 50
  • the digital subscriber line access multiplexer 40 is composed of the following elements. • Splitter 31-1—A switch with a common contact connected to the high-frequency terminal of 31 ⁇ .
  • Switch 41- ( ⁇ + 1) in which neither the common contact nor the make contact is connected to any circuit, and the break contact is directly connected to all the make contacts of the switches 41-1 to 41- ⁇ described above.
  • These switches 41-1 and 4 ⁇ ( ⁇ + 1) have input / output terminals respectively connected to the break contacts, and the first! Interface board with input / output terminals corresponding to the ( ⁇ + 1) “line terminals” 42-1— 42- ( ⁇ + 1)
  • the control unit 44 connects all the common contacts of the switches 41-1 to 41- ( ⁇ + 1) to the break contacts at the time of start-up. Monitor and control the interface panel 42-1—42- ( ⁇ + 1) at a specified frequency. [0006] In such a state, the interface board 42- (n + 1) is not connected to any of the “high band terminals” of the splitter 31-1-31-n, and is secured as a “reserved interface board”. Is done.
  • the interface panel 42-1-42-n is connected to the “high band terminal” of the splitter 31-1-31-n via the switches 41-1 and 41-n, respectively. Operates as a working interface board.
  • the splitter 11-c provided in the home 10-c and the splitter 31-c provided in the telephone station 30 have a low frequency band (hereinafter referred to as “low frequency”) suitable for a telephone signal system.
  • low frequency a low frequency band
  • high band a high frequency band suitable for high-speed data transmission based on ADSL
  • these “low band” and “high band” are shared. Real-time transmission in parallel with the “region”.
  • the personal computer 11-c is a CSMA / CD (Carrier Sense
  • the ADSL modem 13-c interfaces between such a CSMAZCD system and the modulation / demodulation system that realizes ADSL in the above-mentioned “high band”.
  • ADSL signal high frequency signal transmitted via the ADSL is transmitted to the interface board via the high frequency terminal of the splitter 31-c and the switch 41-c. Delivered to 42-c.
  • the interface panel 42-c is assumed to be an “ADSL signal” and a signal (here, “ATM signal”) that is compatible with the multiplexing Z demultiplexing method performed by the multiplexing unit 32. Perform bidirectional conversion with.
  • Such an “ATM signal” is handed over to the backbone network 50 under the above-described multiplexing Z demultiplexing and routing performed by the router 33.
  • the control unit 44 for example, causes a failure in the interface board 42-1 under the monitoring control of the interface board 42-1—42- (n + l) (see FIG. 9 (1) and “ The interface is a “reserve interface board” When the face plate 42- (n + l) is normal, the following processing is performed.
  • Interface board 4 by connecting the common contact of switch 41-1 to the make contact
  • the interface board 42- (n + l) is provided in the in-home 10-1 by performing initialization processing including the following “node shake” and “training” in response to such a command.
  • An alternative communication path is established with the AD SL modem 13-1 via the switch 41-1, the splitter 31-1, and the subscriber line 21-1.
  • a DSP (not shown) that specifies that transmission via the digital subscriber line is based on the “ADSL system” and performs digital signal processing in the interface panel 42- (n + l).
  • "Handshake” that loads firmware that conforms to the "ADSL system”
  • n interface boards 42 individually corresponding to the subscriber lines 21-1 to 21-n under the supervisory control and system configuration control performed by the control unit 44. Even if a failure occurs in any of -1 to 42-n, the corresponding interface board is replaced with a spare interface board 42- (n + l).
  • Patent Documents 1 to 13 As prior arts related to the present invention, there are the following prior arts described in Patent Documents 1 to 13 and Non-Patent Document 1 described later.
  • the terminal center connected through the cable modem to the CATV transmission line side by the LAN center where multiple center devices with N + 1 redundant configuration with N working center devices and one spare center device are installed.
  • a central device is connected to a predetermined network through the network, maintains control information for multiple active center devices and standby center devices to be monitored, and periodically polls N active center devices to The fault center device in which the fault is detected is switched to the spare center device, and multiple center devices are connected to the CATV transmission line. Is switched to the spare center device, and the spare device is switched to the operating state based on the transferred control information.
  • Patent Document 1 JP 2000-295364 A Patent Document 2: Japanese Patent Laid-Open No. 11 215150
  • Patent Document 3 Japanese Patent Laid-Open No. 2002-247554
  • Non-Patent Document 1 ITU-T Recommendation G. 992. 2
  • the present invention provides a network interface device, a system configuration control device, and digital subscriber line access multiplexing that can achieve high-speed updating of the system configuration reliably and inexpensively without changing the basic configuration.
  • An object is to provide an apparatus.
  • the storage means is notified from the outside and is applied to shorten the time required to start up the network interface device. Accumulate possible information.
  • the control means starts up based on the accumulated information when an external force is specified. That is, since the start-up of the network interface device according to the present invention is started based on the information notified from the outside as described above, it is completed in a shorter time than the case where the information is not given.
  • the storage means is notified together with an identifier of another network interface device different from the network interface device and the identifier.
  • a pair of information applicable to shortening the time required to start up the network interface device is stored.
  • the control means is a pair corresponding to an identifier designated from outside among the pairs stored in the storage means. Start up based on information contained in.
  • the start-up of the network interface device according to the present invention is based on the information notified from the outside as described above even if the number of other network interface devices described above is large. Be started.
  • the notification means is acquired in the startup process when the startup of the network interface device is completed. In addition, information applicable to shortening the startup time is notified to the outside.
  • an apparatus configured to include these network interface apparatuses can quickly complete the update of the system configuration under the desired system configuration control, and the overall reliability is improved.
  • the notification means is acquired during the start-up process after the start-up of the network interface device is completed. Information that can be applied to shorten the time required for raising is notified to the outside at a predetermined frequency.
  • Another network interface device that has acquired the information can be quickly used as a network interface device that is used as a substitute for the network interface device according to the present invention. You can complete the launch.
  • an apparatus including these network interface apparatuses can quickly complete the update of the system configuration under the desired system configuration control, and the overall reliability is improved.
  • the notification means is acquired in the process of starting up the network interface device, and the time required for startup is reduced. Each time the network interface device is restarted based on information applicable to shortening, the information is notified to the outside.
  • the other network interface device that has acquired the information is quickly started up as a network interface device that is used as a substitute for the network interface device according to the present invention. Can be completed.
  • an apparatus configured including these network interface apparatuses can quickly complete the update of the system configuration under the desired system configuration control, and the overall reliability is improved.
  • the notification means is performed prior to the specific event when the specific event occurs in the interface process. Information that can be used for start-up and applicable to shorten the time required for start-up is notified to the outside.
  • Another network interface device that has acquired the information can be quickly used as a network interface device that is used as a substitute for the network interface device according to the present invention. You can complete the launch.
  • an apparatus including these network interface apparatuses can quickly complete the update of the system configuration under the desired system configuration control, and the overall reliability is improved.
  • the storage means includes: Information acquired by multiple network interface devices individually during the start-up process and accumulated for shortening the time required for start-up.
  • the information delivery means sends the current network interface device to a spare network interface device to be used in place of the current network interface device when a failure of the current network interface device is detected among the plurality of network interface devices. Deliver the information stored in the storage means in association with the device.
  • the system configuration control of a plurality of network interface devices is achieved in a unified manner by the involvement of the system configuration control device according to the present invention.
  • Information provided for high-speed startup is reliably delivered to the current network interface device power and its spare interface device.
  • the information delivery means includes Identifies information that can be notified by a specific network interface device among multiple network interface devices and that is acquired by the specific network interface device during the startup process and that can be applied to shorten the startup time. It is handed over to a spare network interface device that is used as an alternative to the network interface device.
  • the system configuration control of a plurality of network interface devices is achieved centrally by the involvement of the system configuration control device according to the present invention.
  • the current network interface device is used.
  • Information that is obtained and used for the high-speed start-up of the spare network interface device is reliably delivered to the spare interface device.
  • the plurality of network interface means are provided as an interface between the digital subscriber line and the backbone network, and are provided redundantly.
  • the system configuration control means performs system configuration of a plurality of network interface means.
  • the information storage means provided in the system configuration control means accumulates information that can be acquired by a plurality of network interface means individually during the startup process and that can be applied to shorten the time required for startup.
  • the information delivery means provided in the system configuration control means is configured such that when a failure of the current network interface means is detected among the plurality of network interface means, the current network interface means under the system configuration. The information stored in the information storage means in association with the current network interface means is transferred to the spare network interface means used for replacement.
  • system configuration control of a plurality of network interface devices is centrally achieved by involving a system configuration control device provided separately from these network interface means.
  • Information obtained by the active network interface device and used for the high-speed startup of the spare network interface device is stored in the spare network interface device. Delivered reliably to the tough device.
  • the plurality of network interface means are provided as an interface between the digital subscriber line and the backbone network and are provided redundantly.
  • a specific network interface means constitutes a system configuration of the plurality of network interface means, and is provided under the system configuration as a substitute for the specific network interface means corresponding to the active system.
  • the specific network interface means acquires information that can be acquired during the start-up process and can be applied to shorten the time required for start-up.
  • system configuration control of a plurality of network interface devices is achieved by the involvement of specific network interface means corresponding to any one of these network interface means.
  • the information acquired by the network interface device and used for the high-speed startup of the spare network interface device is reliably delivered to the spare interface device.
  • the system configuration can be updated at high speed.
  • the plurality of network interface means are provided as an interface between the digital subscriber line and the backbone network and are provided redundantly.
  • the system configuration control unit performs system configuration of a plurality of network interface units.
  • the network interface means corresponding to the active system under the system configuration is acquired individually during the startup process, and information applicable to shortening the startup time is stored in the system configuration. Then, it is handed over to the network interface means corresponding to the standby system.
  • the network interface means corresponding to the standby system stands up based on the information delivered by the network interface means to be substituted based on the system configuration among the information delivered by the network interface means corresponding to the active system. Raise it.
  • the system configuration control of the plurality of network interface means is centrally achieved by the involvement of the above-described system configuration control means even when the number of these network interface means is large.
  • the current network interface device In the process of system configuration control, the current network interface device
  • the information acquired and used for the high-speed network startup of the spare network interface device is surely delivered to the spare interface device.
  • the sixth invention it is possible to prevent the above-mentioned information from being notified to the outside in a state where no event occurs, and to reduce the load compared to the third! / And the sixth invention.
  • the specific events described above may be limited to network interface device failures or failures that interfere with the interface.
  • the system configuration of the network interface device is realized without directly linking with other network interface devices not corresponding to any of these network interface devices, Multiple network interface devices provided redundantly together with the network interface device in order to reduce the complexity of the configuration and the increase in processing amount due to the distribution of the loads and functions that affect the system configuration
  • the system configuration control means for performing this system configuration may correspond to the outside.
  • the system configuration of the network interface device is realized under functional distribution and load distribution by these network interface devices, and the complexity of the configuration and the increase in the processing amount are increased. If allowed, a spare network interface device provided redundantly with the network interface device for the purpose of standardizing the functions and configuration of these network interface devices and serving as an alternative to the network interface device. May fall outside.
  • the spare network interface means is applied in the startup process, and information for shortening the startup time is stored in the spare network interface means.
  • the delivery of this information in the process of updating the system configuration is compared to the case where "means that does not fall under any of the working and backup network interface means" is involved.
  • a specific network interface means is designated as a spare network interface means. Applicable for shortening the time required for startup Information "may be handed over.
  • the eleventh invention when a factor that prevents the network interface means corresponding to the active system from preventing "operation as the active system" occurs, it is specified as the network interface means corresponding to the standby system.
  • the network interface means that is acquired during the start-up process and handing over information applicable to shortening the time required for the start-up allows the network interface means corresponding to the standby system to be in the state where such factors do not occur. It may be possible to suppress unnecessary notification of the above information and to reduce the load.
  • the network interface device in which a failure has occurred can be quickly replaced under system configuration control that is performed externally.
  • the device configured to include the network interface device according to the present invention can quickly complete the update of the system configuration under the desired system configuration control, and the overall reliability can be improved. Highly maintained.
  • the load can be reduced.
  • the complexity of the configuration and the increase in the processing amount due to the distribution of loads and functions that affect the system configuration are alleviated.
  • a high-speed update of the system configuration can be achieved without complicating the configuration and greatly increasing the processing amount.
  • a high-speed update of the system configuration can be achieved along with the standardization of the configuration.
  • the system configuration is updated. Renewal is achieved promptly.
  • FIG. 1 is an operation flow chart of the interface board in the first and second embodiments of the present invention.
  • FIG. 2 is a diagram for explaining the operation of the first embodiment of the present invention.
  • FIG. 3 is a diagram for explaining the operation of the second embodiment of the present invention.
  • FIG. 4 is an operation flowchart of a control unit in the third embodiment of the present invention.
  • FIG. 5 is an operation flowchart of the interface board in the third embodiment of the present invention.
  • FIG. 6 is a diagram for explaining the operation of the third embodiment of the present invention.
  • FIG. 7 is a diagram for explaining an operation in another configuration of the third exemplary embodiment of the present invention.
  • FIG. 8 A diagram showing an example of the configuration of in-house and telephone station equipment that realizes the provision of data communication services via digital subscriber lines.
  • FIG. 9 is a diagram for explaining the operation of the digital subscriber line access multiplexer in the conventional example.
  • FIG. 1 is an operation flowchart of the interface board in the first and second embodiments of the present invention.
  • FIG. 2 is a diagram for explaining the operation of the first embodiment of the present invention.
  • the control unit 44 which explains the operation of the first embodiment of the present invention, performs the monitoring control and the system configuration control described above in the same manner as in the conventional example, These interfaces are addressed to the interface panel 42-1-42- (n + 1) via the internal bus 43.
  • the identifier of the interface board corresponding to the standby system (assuming that it is “Interface board 42- (n + l)”) among the interface boards 42-1—42- (n + l) ( In the following, the “reserved system identifier”;) is notified (Fig. 2 (1)).
  • the interface board 42-c is linked with the ADSL modem 13-c via the subscriber line 21-c and performs initialization processing including the above-described "node shake” and "training".
  • initialization processing including the above-described "node shake” and "training”.
  • a communication path is established with the ADSL modem 13-c provided in the home 10-C via the switch 41-c, the splitter 31-c, and the subscriber line 21-c.
  • the interface board 42-c completes the establishment of such a communication path, it performs the following processing individually.
  • the interface board 42- (n + 1) uses the “profile” delivered from the interface board 42-c in this way as the identifier of the interface board 42-c (hereinafter referred to as “active system identifier”). (Fig. 1 (3), Fig. 2 ()).
  • control unit 44 for example, under the monitoring control of the interface panel 42-1—42- (n + l), for example, a failure occurs in the interface panel 42-1 (FIG. 2 (4)), and “standby If the interface board 42- (n + l), which is the "interface board”, is normal, the following processing is performed.
  • the interface panel 42- (n + 1) has the corresponding "working system identifier" among the “profiles” handed over from the interface board 42-1-42-n in advance. No obstacle Based on the “profile” equal to the “harmful identifier”, for example, the “fast retrain” defined in Recommendation G. 99.2.2 of ITU-T (International Telecommunication Union-Telecommunication Standardization Sector) is performed (FIG. 1 (4 ), Fig. 2 (b) establishes an alternative communication path with the ADSL modem 13-1 provided in the home 10-1.
  • ITU-T International Telecommunication Union-Telecommunication Standardization Sector
  • fast retrain is essentially a large occurrence that occurs in response to on-hook, off-hook, polarity reversal, etc. under the subscriber line signaling system that uses the low bandwidth of the subscriber line 21-c. It is started for the purpose of quickly and powerfully canceling transmission quality degradation due to the distribution of harmonic components of level pulses in the “high range” and interruption of data communication. And easily realized.
  • any of the interface panels 42-1 to 42-n can be made redundant based on the spare system without increasing the cost or complicating the configuration (N + 1).
  • the system configuration change “replacement by the spare interface panel 42- (n + l)” is achieved more quickly than the conventional example, and data communication can be resumed at high speed. .
  • FIG. 3 is a diagram for explaining the operation of the second embodiment of the present invention.
  • the control unit 44 performs the above-described monitoring control and system configuration control in the same manner as in the conventional example.
  • the interface board here, it is assumed that it is “Interface board 42- (n + l)”) (hereinafter referred to as “reserve system identifier”;) (Fig. 3 (1)).
  • the interface board 42-c is connected to the ADSL modem 13-c via the subscriber line 21-c at startup.
  • the switch 10-c, the splitter 31-c, and the subscriber line 21-c are connected to the home 10-C.
  • a communication channel is established with the provided ADSL modem 13-c.
  • the interface board 42-c holds the “profile” acquired in the above-described initialization process and used for the above-mentioned “first retrain”. (Fig. 1 (1), Fig. 3 (2).
  • the interface board 42-1 has a failure of the interface board 42-c, or "the normal operation of this interface board 42-c is prevented, but the spare interface board 42-(n + 1)
  • the event that can be recovered by substituting for the system is detected either autonomously or in cooperation with the control unit 44 (Fig. 1 (5), Fig. 3 (3), and the interface panel 42-1—42- (n + l), this “profile” is handed over to the interface board 42- (n + l) indicated by the above-mentioned standby system identifier via the internal bus 43 (FIG. 1 (6), FIG. 3 ( Four".
  • the interface board 42- (n + 1) obtains the "profile” handed over from the interface board 42-c in this way as the identifier of the interface board 42-c (hereinafter, "active system identifier"). ( Figure 1 (3), Figure 3 ().
  • control unit 44 causes the above-described failure or event to occur in the interface panel 42-1 under the monitoring control of the interface panel 42-1—42- (n + l) (see FIG. 3 (3)). If the interface board 42- (n + l), which is the “prepared interface board”, is normal, the following processing is performed.
  • the interface panel 42- (n + 1) has the “active system identifier” corresponding to the above-mentioned “profile” among the “profiles” delivered and held in advance from the interface board 42-1-42-n. Based on the “profile” equal to the “failure system identifier” of “ By performing “First Retrain” (Fig. 1 (4), Fig. 3 (b)), an alternative communication path is established with the AD SL modem 13-1 provided in the home 10-1.
  • any of these interface panels 42-1 to 42-n is a “reserve interface panel 42- (n + l Substituting by “)” is achieved more quickly than the conventional example, and resumption of data communication is realized at high speed.
  • ADSLs digital subscriber lines
  • FIG. 4 is an operation flowchart of the control unit in the third embodiment of the present invention.
  • FIG. 5 is an operation flowchart of the interface board in the third embodiment of the present invention.
  • FIG. 6 is a diagram for explaining the operation of the third embodiment of the present invention.
  • the control unit 44 performs the above-described monitoring control and system configuration control in the same manner as in the conventional example, and the interface board corresponding to the standby system among the interface boards 42-1 to 42- (n + l) (here, (It is assumed that the interface panel is 42- (n + l).)
  • the “standby system identifier” is retained.
  • the interface panel 42-c is linked to the ADSL modem 13-c via the subscriber line 21-c and performs the above-described initialization process, whereby the switch 41-c and the splitter 31 are connected.
  • -c and subscriber line 21-c to ADSL modem 13-c installed in customer premises 10-c Establish a channel.
  • the interface board 42-c completes the establishment of such a communication path, it performs the following processing individually.
  • the control unit 44 holds the “profile” handed over from the interface board 42-c in this manner in association with the identifier of the interface board 42-c (hereinafter referred to as “active system identifier”). (Fig. 4 (1), Fig. 6 (B)).
  • control unit 44 for example, under the monitoring control of the interface panel 42-1—42- (n + l), for example, a failure occurs in the interface panel 42-1 (FIG. 6 (4)), and “standby When the interface board 42- (n + l), which is the “interface board”, is identified as normal, the following processing is performed. • Connect the high frequency terminal of the splitter 31-1 to the interface panel 4 2- (n + l) by connecting the common contact of the switch 41-1 to the make contact (Fig. 4 (2), Fig. 6 (5 >>
  • the interface panel 42- (n + l) is based on the “profile” included in such a directive, and is based on the “fast retrain” defined in the above-mentioned recommendation ITU-T recommendation G. 992.2. (Fig. 5 (7) and Fig. 2 (D) establish an alternative communication path with the ADSL modem 13-1 provided in the home 10-1.
  • the processing procedure corresponding to “training” among the processes performed as the initialization process described above is applied by applying the above-mentioned “profile”. Simplified. However, the procedure of this process is shortened in the same manner as in the first embodiment described above because it is not necessary to newly obtain the above-mentioned “profile”.
  • the "profile” applied to such "first retrain” is stored once in the control unit 44 regardless of the number of the interface boards 42-1 to 42-n. Delivered to spare interface board 42- (n + l).
  • the interface board 42- (n + l) (or any of the interface boards 42-1—42- (n + l)) has all the power of the current interface board.
  • the system configuration of the interface panel 42-1—42- (n + l) is based on the (N + 1) backup method without providing a large storage area for holding the “profile” delivered individually.
  • the interface board that has been realized and has failed is replaced by the spare interface board 42- (n + l) more quickly than the conventional example.
  • the control unit 44 instead of the spare interface board-(n + 1) in the first embodiment described above, the control unit 44 notifies from the current interface board 42-1—42-n. Of these interface panels 42-1—42-n, the previously notified “profile” from the interface panel where the failure occurred is stored in the spare interface panel-(n +1).
  • the present embodiment is not limited to such a configuration.
  • the first embodiment is replaced with the first embodiment described above.
  • the second embodiment is applied and the “profile” notified from the current interface board 42-1—42-n is retained, and the interface interface in which the failure has occurred among these interface boards 42-1—42-n.
  • the transfer to the spare interface board (n + 1) of the “profile” notified in advance by the one board board controller may be performed by the control unit 44.
  • the (N + 1) preliminary method is applied.
  • ADSL failure recovery can be performed at high speed by performing fast retraining based on the above-mentioned “profile” in a spare interface panel that is used as a substitute for a failed interface panel. If achieved, it may be configured by duplicating individual working interface boards.
  • the “first train” defined in ITU-T Recommendation G. 992.2 is used in order for the spare interface board to start operation as an active interface board at high speed.
  • the “Profile” described above is applied to the “First Retrain”.
  • the present invention is not limited to such a configuration.
  • the present invention is obtained in the process of “training” performed at the start of the interface panel, and is applied to the above-described high-speed operation of the spare interface panel. Whatever information is possible may be applied in place of the previously described “profile”, and if that fast speed is based on this information, it falls under “first train”. However, it can be realized as any processing.
  • the digital subscriber line access multiplexing apparatus 40 and the controller 44 are provided.
  • such a digital subscriber line access multiplexer 40 is operated by the distributed processing of the interface panel 4 2-1 42- (n + l), or by the host device of the digital subscriber line access multiplexer 40. If the functions of the control unit 44 (including the monitoring control of the interface panel 42-1 and 42- (n + l) and the system configuration control) are realized, the control unit 44 is not provided. May be configured.
  • the interface panel 42-1—42-n is connected to the spare interface panel 42- (n + l) or the control unit 44 at the time of start-up or when a failure occurs. Is handing over.
  • the restoration of the ADSL in which the failure has occurred is attempted to the physical layer based on the (N + 1) backup method.
  • the present invention is not limited to such a configuration.
  • the control unit 44 performs a behavior that conforms to a communication procedure in a layer higher than the data link layer, the ADSL in which a failure has occurred can be recovered.

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

Abstract

La présente invention concerne un appareil d’interface de réseau pour une utilisation dans un centre de commutation hébergeant des lignes numériques d’abonnés (DSL) ; un appareil de commande d’agencement de système pour effectuer des agencements de système pour une utilisation actuelle, une utilisation future et similaire dans l’appareil d’interface de réseau ; et un appareil de multiplexage de lignes numériques d’abonnés, tel que le DSLAM (40), une pluralité d’appareils d’interface de réseau tels que décrits ci-dessus étant utilisée selon l’appareil de commande d’agencement de système. L’agencement de système peut être mis à jour à une vitesse supérieure avec fiabilité sans avoir besoin de changer la structure de base. L’appareil d’interface de réseau comprend des moyens de stockage pour stocker des informations, telles qu’un profil de recyclage rapide, qui sont notifiées extérieurement et applicables pour raccourcir le temps demandé pour démarrer l’appareil d’interface de réseau ; et des moyens de commande pour le démarrer sur la base des informations stockées lorsque les moyens de commande sont désignés extérieurement.
PCT/JP2004/013436 2004-09-15 2004-09-15 Appareil d’interface de reseau, appareil de commande d’agencement de systeme et appareil de multiplexage d’acces de lignes numeriques d’abonnes WO2006030499A1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
JP2006534983A JPWO2006030499A1 (ja) 2004-09-15 2004-09-15 網インタフェース装置、系構成制御装置およびディジタル加入者線アクセス多重化装置
PCT/JP2004/013436 WO2006030499A1 (fr) 2004-09-15 2004-09-15 Appareil d’interface de reseau, appareil de commande d’agencement de systeme et appareil de multiplexage d’acces de lignes numeriques d’abonnes

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/JP2004/013436 WO2006030499A1 (fr) 2004-09-15 2004-09-15 Appareil d’interface de reseau, appareil de commande d’agencement de systeme et appareil de multiplexage d’acces de lignes numeriques d’abonnes

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WO2006030499A1 true WO2006030499A1 (fr) 2006-03-23

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WO2018230069A1 (fr) * 2017-06-14 2018-12-20 住友電気工業株式会社 Dispositif de commutation, procédé de commande de communication et programme de commande de communication

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JPH02228151A (ja) * 1989-02-28 1990-09-11 Fujitsu Ltd 障害切替方式
JPH02243041A (ja) * 1989-03-16 1990-09-27 Nec Corp 集合型データ伝送装置
JPH0514323A (ja) * 1991-07-05 1993-01-22 Mitsubishi Electric Corp 回線制御装置
JP2001520487A (ja) * 1997-10-10 2001-10-30 アウェア， インコーポレイテッド スプリッタレス多搬送波モデム

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JPH02228151A (ja) * 1989-02-28 1990-09-11 Fujitsu Ltd 障害切替方式
JPH02243041A (ja) * 1989-03-16 1990-09-27 Nec Corp 集合型データ伝送装置
JPH0514323A (ja) * 1991-07-05 1993-01-22 Mitsubishi Electric Corp 回線制御装置
JP2001520487A (ja) * 1997-10-10 2001-10-30 アウェア， インコーポレイテッド スプリッタレス多搬送波モデム

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Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2018230069A1 (fr) * 2017-06-14 2018-12-20 住友電気工業株式会社 Dispositif de commutation, procédé de commande de communication et programme de commande de communication
JP2019004285A (ja) * 2017-06-14 2019-01-10 住友電気工業株式会社 スイッチ装置、通信制御方法および通信制御プログラム
CN110710166A (zh) * 2017-06-14 2020-01-17 住友电气工业株式会社 交换装置、通信控制方法和通信控制程序
US11171808B2 (en) 2017-06-14 2021-11-09 Sumitomo Electric Industries, Ltd. Switch device, communication control method, and recording medium
CN110710166B (zh) * 2017-06-14 2021-12-14 住友电气工业株式会社 交换装置、通信控制方法和记录介质

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