WO2011004718A1 - ネットワーク集線装置及びその制御方法 - Google Patents
ネットワーク集線装置及びその制御方法 Download PDFInfo
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- WO2011004718A1 WO2011004718A1 PCT/JP2010/060801 JP2010060801W WO2011004718A1 WO 2011004718 A1 WO2011004718 A1 WO 2011004718A1 JP 2010060801 W JP2010060801 W JP 2010060801W WO 2011004718 A1 WO2011004718 A1 WO 2011004718A1
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- 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]
- H04L12/44—Star or tree networks
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L12/00—Data switching networks
- H04L12/02—Details
- H04L12/10—Current supply arrangements
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- 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
- H04L41/0823—Configuration setting characterised by the purposes of a change of settings, e.g. optimising configuration for enhancing reliability
- H04L41/0833—Configuration setting characterised by the purposes of a change of settings, e.g. optimising configuration for enhancing reliability for reduction of network energy consumption
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L43/00—Arrangements for monitoring or testing data switching networks
- H04L43/08—Monitoring or testing based on specific metrics, e.g. QoS, energy consumption or environmental parameters
- H04L43/0805—Monitoring or testing based on specific metrics, e.g. QoS, energy consumption or environmental parameters by checking availability
- H04L43/0811—Monitoring or testing based on specific metrics, e.g. QoS, energy consumption or environmental parameters by checking availability by checking connectivity
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
- Y02D30/00—Reducing energy consumption in communication networks
- Y02D30/50—Reducing energy consumption in communication networks in wire-line communication networks, e.g. low power modes or reduced link rate
Definitions
- the present invention relates to a network concentrator and a control method thereof.
- the present invention relates to a network line concentrator and a control method therefor that can achieve power saving with a simple configuration.
- an object of the present invention is to provide a network line concentrator and a control method therefor that can solve the above-described problems. This object is achieved by a combination of features described in the independent claims.
- the dependent claims define further advantageous specific examples of the present invention.
- a network concentrator control method including a plurality of ports for connecting to a network device on a network, wherein at least one of the plurality of ports belonging to a first group.
- a method for controlling a link state between one port and at least one port belonging to a second group corresponding to the first group, wherein each port belonging to the first group and the second group includes: Detecting link up or link down; and as a result of the detecting step, at least one port of one of the first group and the second group is link up, and All ports of the other group of the first group and the second group are linked If it is down, and a step of setting said the link-up of one of the group port link not allowed.
- each port of the first group and the second group is link-up or link-down, and a port that is linked up even though it is not used for communication cannot be linked. Therefore, it is possible to prevent the port from being left unnecessarily linked up. Therefore, power consumption for link-up can be suppressed, and power saving of the network line concentrator can be achieved. Moreover, since the setting of the port non-linkable is performed based on the link state of each port belonging to the first group and the second group, power saving can be achieved with a simple configuration.
- the method may further include a step of confirming that the first group and the second group are set before the detecting step.
- the setting step may include setting all ports of the one group to be unlinkable.
- the method may further include a step of canceling the setting.
- a network concentrator includes a plurality of ports for connecting to a network device on a network, and among the plurality of ports, at least one port belonging to a first group and the first A network concentrator for controlling a link state with at least one port belonging to a second group corresponding to a group, wherein each port belonging to the first group and the second group is linked up or down A detection unit for detecting that the at least one port of one of the first group and the second group is a link-up as a result of detection by the detection unit; and When one port of the other group of the group and the second group is link down, the one And a setting unit that sets a port is a link-up of the group to link not allowed.
- each port of the first group and the second group is link-up or link-down, and a port that is linked up even though it is not used for communication cannot be linked. Therefore, it is possible to prevent the port from being left unnecessarily linked up. Therefore, power consumption for link-up can be suppressed, and power saving of the network line concentrator can be achieved. Moreover, since the setting of the port non-linkable is performed based on the link state of each port belonging to the first group and the second group, power saving can be achieved with a simple configuration.
- the apparatus may further include a group setting confirmation unit for confirming that the first group and the second group are set.
- the setting unit may set all ports of the one group to be unlinkable.
- the setting unit cancels the link disable setting of the one group. Also good.
- FIG. 1 is a diagram showing a network system including a network line concentrator according to an embodiment of the present invention.
- This network system includes network concentrators 100 and 100a for connecting a plurality of network devices on a network 200.
- the network line concentrators 100 and 100a are typically switching hubs (also called layer 2 switches).
- the network line concentrator 100 includes a plurality of ports 102, 104, 106, and 108 for connecting to network devices on the network 200.
- the plurality of ports include ports 102, 104, 106 belonging to the first group 10 and ports 108 belonging to the second group 12. Details of the first and second groups 10 and 12 will be described later.
- network devices 300, 302, and 304 are connected to the lower ports 102, 104, and 106 of the network concentrator 100, and the lower ports of the other network concentrators 100a are connected to the upper port 108 of the network concentrator 100.
- Port 102a is connected.
- the network device 306 is connected to the lower port 104a of the network line concentrator 100a, and the network 200 is connected to the upper port 108a of the network line concentrator 100a.
- the network devices 300 to 306 include, for example, general-purpose computer terminals, network printers, switching hubs, and the like, and the configuration is not limited as long as the devices communicate via the network.
- FIG. 2 is a diagram showing a configuration of the network line concentrator according to the present embodiment.
- the network concentrator 100 controls whether the switch state of the port of the network concentrator 100, that is, link up or link down, in addition to the switch circuit 110, the PHY circuit and the connector (SFP, RJ45).
- the control part 120 to be included is included.
- the switch circuit 110, the PHY circuit, and the control unit 120 are connected to a common control bus so that data can be transmitted and received between them.
- the network line concentrator 100 further includes a storage unit 130 that stores various types of information for controlling the control unit 120.
- the storage unit 130 is connected to the control unit 120 so that data can be transmitted and received. Note that the switch circuit 110 and the PHY circuit may be integrated into one chip.
- the CPU of the control unit 120 executes a predetermined program (a program that defines the control method of the network concentrator according to the present embodiment) stored in the ROM or the like of the storage unit 130.
- the network concentrator 100 can be realized as various functional blocks described later, or the network concentrator 100 can execute various steps. Note that the processing that causes the CPU to execute the program that defines the control method for the network concentrator according to the present embodiment causes the CPU to perform the same functions and operations of the corresponding members in the device or method of the present embodiment, respectively. .
- the control unit 120 includes a group setting confirmation unit 122, a detection unit 124 that detects the link state of each port of the first group 10 and each port of the second group, and the detection unit 124. And a setting unit 126 that sets the link state of the port based on the detection result.
- the control unit 120 is configured to read information stored in the storage unit 130 of FIG. 2 or write information to the storage unit 130.
- the group setting confirmation unit 122 confirms that the first group 10 and the second group 12 are set in the plurality of ports of the network line concentrator 100. Specifically, the group setting confirmation unit 122 sets at least one port belonging to the first group 10 and at least one port belonging to the second group 12 among the plurality of ports of the network line concentrator 100. If it is, it is determined as “set”, and if not, it is determined as “not set”.
- the first group 10 and the second group 12 correspond to each other so that the ports can communicate with each other.
- Arbitrary ports of the network concentrator 100 can be set in each group.
- the lower ports 102, 104, and 106 of the network concentrator 100 are set as the first group 10
- the upper port 108 of the network concentrator 100 is set to the second group. 12 can be set.
- some ports (ports 102, 104, 106 in FIG. 1) of the network line concentrator 100 are set as the first group 10, and all the remaining ports (port 108 in FIG. 1) are set as the second group.
- some of the ports of the network concentrator 100 may be set as the first group 10, and some of the remaining ports may be set as the second group 12.
- the ports belonging to the first group 10 and the ports belonging to the second group 12 may be fixed or may be dynamically changeable.
- one group of the first group 10 and the second group 12 may have one port, and the other group may have a plurality of ports (see FIG. 1).
- the detecting unit 124 detects the link state of each port 102, 104, 106 belonging to the first group 10 and detects the link state of each port 108 belonging to the second group 12.
- the communication state of each of these ports can be detected from the switch circuit 110 and / or the PHY circuit via the control bus.
- the setting unit 126 is connected to the detection unit 124 and configured to acquire the detection result of the detection unit 124. Then, the setting unit 126 is configured such that at least one port of one of the first group 10 and the second group 12 is linked up, and the other group of the first group 10 and the second group 12 When all the ports in the link are in the link-down state, the ports that are in the link-up of one group are set to the link disabled state (including the state in which the link cannot be performed). Specifically, the setting unit 126 sends a command to the switch circuit 110 and / or the PHY circuit so as to set the link-up port to link-disable.
- the link failure may be performed by turning off the power of the PHY circuit and the switch 110, or turning off or resetting the PHY circuit (when the PHY circuit has a plurality of control blocks corresponding to the ports, at least one control is performed. Including powering off or resetting the block).
- the switch 110 may output a signal that prevents link-up, or cause the PHY circuit to output such a signal.
- all the ports of the group to which the port that is linked up belongs may be set to be unlinkable.
- the setting unit 126 further includes a function of canceling the setting of the port unlinkable based on the detection result of the detection unit 124. For example, when the setting unit 126 sets the ports 102, 104, and 106 of the first group 10 to be unlinkable, when the detection unit 124 detects that the port 108 of the second group 12 is linked up, The setting unit 126 obtains the result of the detection, and the setting unit 126 cancels the link disable setting of each port 102, 104, 106.
- each port of the first group and the second group is link-up or link-down, and the link is used even though it is not used for communication. Since a port that is up is set to be non-linkable, it can be avoided that the port remains unnecessarily linked up. Therefore, power consumption for link-up can be suppressed, and power saving of the network line concentrator can be achieved. Moreover, since the setting of the port non-linkable is performed based on the link state of each port belonging to the first group and the second group, power saving can be achieved with a simple configuration.
- FIG. 3 shows an overall flow of the network concentrator control method
- FIG. 4 shows a sub-flow of steps S119 and S123 of FIG.
- each step described below (including not only a step having a reference numeral but also a partial step of the step having the reference sign) is arbitrarily changed in order within a range in which there is no contradiction in processing contents. Or in parallel.
- the first group 10 and the second group 12 are set for a plurality of ports of the network concentrator to which the program that defines the network concentrator control method according to the present embodiment is applied.
- the setting confirmation of the first group 10 and the second group 12 can be performed by the group setting confirmation unit 122.
- the group setting confirmation unit 122 As a result of the group setting check, if it is determined that “setting is present”, the process proceeds to the next step. If it is determined that “not set”, the process returns to step S101 (S103).
- the link states of the ports belonging to the first group 10 and the ports belonging to the second group 12 are detected (S111). That is, it is detected whether all ports belonging to the first group 10 and all ports belonging to the second group 12 are link up or link down.
- Such link state detection can be performed by the detection unit 124.
- step S113 the link state of the ports of the first group 10 is detected.
- UP link up
- DOWN link down
- step S115 when the link state of the port 108 of the second group 12 is detected, if at least one port of the second group 12 is link up (UP), the process is the group setting.
- the process returns to the confirmation step (S101). That is, since the communication is normally performed between the link-up port of the first group 10 and the link-up port of the second group 12, it is not necessary to set the link disabled.
- step S115 if the link state of the ports of the second group 12 is detected, and all the ports of the second group 12 are link down (DOWN), the link of the first group 10 is up.
- Existing ports are set to be unlinkable (S119). That is, since there is a port that is linked up in the first group 10 even though it is not used for communication, the port is set to be unlinkable. It should be noted that such a link disabling setting can be performed by the setting unit 126.
- step S117 when the link state of the port of the second group 12 is detected in step S117, if at least one port of the second group 12 is link-up (UP), the link-up of the second group 12 is performed. Is set to link-disable (S123). That is, although there is a port that is linked up in the second group 12 even though it is not used for communication, the port is set to be unlinkable. It should be noted that such a link disabling setting can be performed by the setting unit 126.
- step S117 if the link state of the ports of the second group 12 is detected in step S117, and all the ports of the second group 12 are link-down (DOWN), the process proceeds to a group setting confirmation step ( Return to S101). That is, since all the ports of the first group 10 and the second group 12 are link-down, it is not necessary to set the link disabled.
- the setting unit 126 sets the link-up port in the group (X) having the link-up port so that the link is not allowed (S201). At this time, all the ports of the group (X) having ports that are linked up may be set to be unlinkable (S203).
- the setting unit 126 detects the link state of the port of the first group 10 and the second group 12 that is not the group that is not set to be unlinkable, and detects a link up at the port. It waits to do (S205).
- the setting unit 126 sets the port of the first group 10 to be unlinkable (S207)
- the setting unit 126 detects the link state of the corresponding second group 12 port (209), and as a result, If all the ports of the second group 12 are link down (DOWN), it will continue to wait for the second group 12 to detect a link up, while at least one port of the second group 12 is linked up. If it is (UP), the link disable setting of the ports of the first group 10 is canceled (S213).
- the setting unit 126 sets the port of the second group 12 to be unlinkable (S207)
- the setting unit 126 detects the link state of the corresponding port of the first group 10 (S211), and as a result, If all the ports in group 12 are link down (DOWN), it will continue to wait for the first group 10 to detect link up, while at least one port in the first group 10 will be linked up (UP). If so, the setting of the link prohibition of the port of the second group 12 is canceled (S213).
- each port of the first group and the second group is link-up or link-down, and is not used for communication.
- a port that is in a link-up state is set to be non-linkable, it can be avoided that the port remains in a link-up uselessly. Therefore, power consumption for link up is suppressed, and power saving of the network concentrator is achieved.
- the setting of the port non-linkable is performed based on the link state of each port belonging to the first group and the second group, power saving can be achieved with a simple configuration.
- the power consumption of the entire group can be suppressed, and the power saving of the network concentrator can be further achieved.
- the link disable setting is canceled by detecting the link status of the port of the group other than the group that is not set to link disabled, it operates with a simple configuration while saving power. Recovery will be performed.
- This network system includes a network concentrator 400 having a plurality of ports 402, 404, 406, 408, 410, 412, and 414, and a network concentrator 400a having a plurality of ports 402a and 404a.
- the ports 402, 404, 406, 408, 410 are set so as to belong to the first group 40 and the port 412 belongs to the second group 42. Further, the network devices 310, 312, 314, 316, 318 are connected to the ports 402, 404, 406, 408, 410, the port 404 a of the network concentrator 400 a is connected to the port 412, and the network 200 is connected to the port 414. It is connected.
- the port 402a is set to belong to the first group 40a
- the port 404a is set to belong to the second group 42a.
- the monitoring server 500 is connected to the port 402a, and the port 412 of the network line concentrator 400 is connected to the port 404a.
- the configuration of the network concentrator 100 described above can be applied to other configurations of the network concentrator 400, 400a.
- the network line concentrator 400, 400a when a plurality of network devices 310, 312, 314, 316, 318 communicate with each other in the network 200 under the monitoring of the monitoring server 500, as described above.
- the system security is improved.
- the ports 402, 404, and 318 connected to the network devices 310, 312, 314, 316, and 318 By setting 406, 408, and 410 to be unlinkable, unauthorized access to network devices on the network 200 is prevented.
- the port 404a of the second group 42a is set to link-disabled from link-up. Then, in the network line concentrator 400, it is detected that the port 404a is set to be unlinkable, and based on such detection, the port 412 of the second group 42 changes from link up to link down. As a result, in the network concentrator 400, the link-up ports 402, 404, 406, 408, 410 of the first group 40 are set to be unlinkable. As a result, the network device is outside the monitoring of the monitoring server 500 and the network 200 Can be avoided.
- the link down port of the first group is detected, the port of the second group is set to be non-linkable, and the link down port of the second group is detected to detect the first group.
- the present invention is not limited to such a bidirectional link disabling setting, and as a modification, a link disabling setting may be performed only in one direction. .
- a set of first and second groups is set in a network concentrator.
- the present invention is not limited to this, and a plurality of sets of first and second groups in a network concentrator are described. May be set. In this case, part or all of the range of a certain group of groups may be set to overlap with the range of another group of groups.
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Abstract
Description
12,42,42a・・・第2のグループ
100,100a,400,400a・・・ネットワーク集線装置
102,102a,104,104a,106,108,108a・・・ポート
200・・・ネットワーク
300,302,304,306・・・ネットワーク機器
120・・・制御部
122・・・グループ設定確認部
124・・・検出部
126・・・設定部
Claims (8)
- ネットワーク上でネットワーク機器に接続するための複数のポートを備えるネットワーク集線装置において、前記複数のポートのうち、第1のグループに属する少なくとも1つのポートと当該第1のグループに対応する第2のグループに属する少なくとも1つのポートとのリンク状態を制御する方法であって、
前記第1のグループ及び前記第2のグループに属する各ポートが、リンクアップ又はリンクダウンであることを検出するステップと、
前記検出するステップの結果、前記第1のグループ及び前記第2のグループの一方のグループの少なくとも1つのポートがリンクアップであり、かつ、前記第1のグループ及び前記第2のグループの他方のグループの全ポートがリンクダウンである場合に、前記一方のグループのリンクアップであるポートをリンク不可に設定するステップと、
を含む、ネットワーク集線装置の制御方法。 - 前記検出するステップの前に、前記第1のグループ及び前記第2のグループが設定されていることを確認するステップをさらに含む、請求項1記載のネットワーク集線装置の制御方法。
- 前記設定するステップは、前記一方のグループの全ポートをリンク不可に設定することを含む、請求項1又は2に記載のネットワーク集線装置の制御方法。
- 前記設定するステップの後に、
前記他方のグループの少なくとも1つのポートがリンクダウンからリンクアップになることを検出した場合に、前記設定するステップにおいて行われた前記一方のグループのリンク不可の設定を解除するステップをさらに含む、請求項1から3のいずれかに記載のネットワーク集線装置の制御方法。 - ネットワーク上でネットワーク機器に接続するための複数のポートを備え、前記複数のポートのうち、第1のグループに属する少なくとも1つのポートと当該第1のグループに対応する第2のグループに属する少なくとも1つのポートとのリンク状態を制御するネットワーク集線装置であって、
前記第1のグループ及び前記第2のグループに属する各ポートが、リンクアップ又はリンクダウンであることを検出する検出部と、
前記検出部による検出の結果、前記第1のグループ及び前記第2のグループの一方のグループの少なくとも1つのポートがリンクアップであり、かつ、前記第1のグループ及び前記第2のグループの他方のグループの全ポートがリンクダウンである場合に、前記一方のグループのリンクアップであるポートをリンク不可に設定する設定部と、
を備える、ネットワーク集線装置。 - 前記第1のグループ及び前記第2のグループが設定されていることを確認するグループ設定確認部をさらに備える、請求項5記載のネットワーク集線装置。
- 前記設定部は、前記一方のグループの全ポートをリンク不可に設定する、請求項5又は6記載のネットワーク集線装置。
- 前記設定部は、前記他方のグループの少なくとも1つのポートがリンクダウンからリンクアップになることを前記検出部が検出した場合に、前記一方のグループのリンク不可の設定を解除する、請求項5から7のいずれかに記載のネットワーク集線装置。
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US13/382,136 US8737419B2 (en) | 2009-07-08 | 2010-06-25 | Network concentrator and method of controlling the same |
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JP5139579B2 (ja) | 2013-02-06 |
JPWO2011004718A1 (ja) | 2012-12-20 |
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