CN1964241A - Optical fiber communication network system and access device and method for node at the above system - Google Patents
Optical fiber communication network system and access device and method for node at the above system Download PDFInfo
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- CN1964241A CN1964241A CN 200510115808 CN200510115808A CN1964241A CN 1964241 A CN1964241 A CN 1964241A CN 200510115808 CN200510115808 CN 200510115808 CN 200510115808 A CN200510115808 A CN 200510115808A CN 1964241 A CN1964241 A CN 1964241A
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Abstract
The disclosed node access device in fiber network comprises: a light switch module to break the node from network according to bypass switch command from a control module and connect optical fibers on node sides; a light switch control module to send command. The relative access method comprises: A. monitoring whether to break node from network, yes to step B, or else returning to step A; and B. breaking node from network, and connecting near optical fibers. This invention can ensure network communication stability.
Description
Technical field
The present invention relates to Fibre Optical Communication Technology, node access device and method in particularly a kind of fiber optic network, and the Networks of Fiber Communications system that adopts this access device and method.
Background technology
In optical fiber communication, the interruption of communication path is normally gone offline by fiber failure or node and causes.Existing optical fiber communication is generally used for metropolitan area network or wide area network, and for metropolitan area network or wide area network, the equipment at each node place generally has good condition of power supply and Disaster Tolerant Scheme, is not easy to occur the situation that node goes offline.Therefore prior art mainly is that the business of keeping other nodes when causing that at fiber failure communication path interrupts is unlikely to interrupt.In order to reach this purpose, prior art increases fiber count when setting up network, introduces backup optical fiber, for example adopts two fine or four fibres; What cooperate with it is the procotol with self-healing feature, enables backup optical fiber when working optical fibre is out of order automatically, and for example the network in the SDH/SONET system is switched protection mechanism.The communication path that these technology cause for the processing fiber failure interrupts that good effect is arranged, and makes metropolitan area network or wide area network have reasonable reliability.
But, interrupt more and more general by go offline caused communication path of node along with optical fiber communication more and more is applied in the Access Network.This is owing to the condition of power supply difference of each node in Access Network is very big, and only opens in use usually; Simultaneously, to set up disaster-tolerant backup also also unworkable economically for each node, therefore is easy to occur the situation that node goes offline.For the node that goes offline, all communication paths by this node promptly all interrupt, and this is equivalent to working optical fibre and backup optical fiber all is out of order, in most of the cases, even switch the work that protection also can't be kept other nodes.
Fig. 1 has represented the situation that node goes offline in two fine looped networks.In two fine looped networks, there are two barss to flow to opposite ring, be called up time needle ring and inverse time needle ring.With node A is example, and in order to be linked in wide area network or the metropolitan area network, node A need communicate by letter with access point D.During operate as normal, node A arrives access point D through Node B and node C to the data that access point D sends successively by the up time needle ring; And access point D arrives node A through node C and Node B to the data that node A sends successively by the inverse time needle ring.If Node B goes offline, then the protection mechanism of switching in the agreement allows node A pass through node G, node F and node E to the data that access point D sends successively by the inverse time needle ring; And access point D passes through node E, node F and node G to the data that node A sends successively by the up time needle ring.Like this, except malfunctioning node, other nodes still can proper communication.But if Node B and node G go offline, then node A still is that the inverse time needle ring all can't be with access point D communication by the up time needle ring.If make two fibres into four fibres, perhaps make into can transmitted in both directions single fiber, conclusion is the same.
Fig. 2 has represented the situation that node goes offline in the four fine link networks.In four fine link networks, a certain node goes offline then and all to interrupt by its communication path, so its all nodes away from access point one side all can't follow access point communication, thereby causes the service disconnection of these nodes.For example after node C went offline, the business of node A and Node B all was interrupted.
This shows that in the prior art, node goes offline and can cause all communication paths by this node to interrupt, thereby make that other nodes of part can not proper communication, cause the service disconnection of these nodes.
Summary of the invention
In view of this, main purpose of the present invention is to provide a kind of apparatus and method of fiber optic network node access and Networks of Fiber Communications system that adopts this access device and method of being used for, thereby to avoid causing the proper communication of interrupting influencing other nodes by the communication path of this node fully owing to node goes offline.
In order to achieve the above object, the invention provides the node access device in a kind of fiber optic network, this device comprises with lower module:
The light handover module is used for according to the bypass switching command of light switching controls module node being disconnected from network, and the optical fiber of node both sides directly is communicated with when network disconnects at node;
Light switching controls module is used for sending the bypass switching command to the light handover module.
Wherein, described smooth switching controls module is further used for sending the access switching command to the light handover module, and described smooth handover module is further used for according to the direct connection with node access network and disconnected node two side optical fibers of the access switching command of light switching controls module.
Wherein, described smooth handover module comprises first optical switch, second optical switch, the 3rd optical switch and the 4th optical switch, and each optical switch has four interfaces, is respectively optical fiber interface, optical switch interface, back end interface and control interface; The optical fiber interface of first optical switch and second optical switch is the east orientation optical fiber of connected node both sides respectively, and the optical switch interface of first optical switch and second optical switch links to each other; The west of the optical fiber interface difference connected node both sides of the 3rd optical switch and the 4th optical switch is to optical fiber, and the optical switch interface of the 3rd optical switch and the 4th optical switch links to each other; The back end interface of each optical switch all is connected to the back end processing module on the node; The control interface of each optical switch all is connected to light switching controls module; The optical fiber interface of each optical switch links to each other with the optical switch interface or the back end interface of this optical switch in this optical switch inside.
Wherein, described smooth handover module comprises first optical switch and second optical switch, and each optical switch has four interfaces, is respectively optical fiber interface, optical switch interface, back end interface and control interface; The optical fiber interface of first optical switch and second optical switch is the optical fiber of connected node both sides respectively, and the optical switch interface of two optical switches links to each other; The back end interface of each optical switch all is connected to the back end processing module on the node; The control interface of each optical switch all is connected to light switching controls module; The optical fiber interface of each optical switch links to each other with the optical switch interface or the back end interface of this optical switch in this optical switch inside.
Wherein, described smooth switching controls module is connected to node power and sends switching command according to the state of node power, interrupt time switching controls module when node power and send the bypass switching command, by the light handover module with the node bypass; Recover time switching controls module when node power and send the access switching command, node is inserted by the light handover module.
Wherein, described node power comprises node main power source and node stand-by power supply, it is that node main power source and node stand-by power supply all interrupt that described node power is interrupted, and it is that any one recovery or two recover in node main power source and the node stand-by power supply that described node power is recovered.
Wherein, described node access device further comprises:
The timer module is used for picking up counting when power up, and judges whether that power supply interrupts once more in the given time, inserts switching command to the light handover module if then allow light switching controls module send.
The present invention also provides a kind of Networks of Fiber Communications system, and this system comprises the node that connects by fiber optic communication channel, further comprises node access device, and this device comprises:
The light handover module is used for according to the bypass switching command of light switching controls module node being disconnected from network, and the optical fiber of node both sides directly is communicated with when network disconnects at node;
Light switching controls module is used for sending the bypass switching command to the light handover module.
This system further comprises:
Network Management Equipment is used for sending equipment webmaster signal to node.
Wherein, the communication channel between described Network Management Equipment and the node is a fiber optic communication channel.
Wherein, the communication channel between described Network Management Equipment and the node is to be the extra network management communication channel of setting up of network management communication.
The present invention also provides the method that node inserts in a kind of fiber optic network, and this method comprises:
Steps A, whether monitoring needs node is disconnected from network, if execution in step B then, otherwise return execution in step A;
Step B disconnects node from network, and the optical fiber of these node both sides is directly coupled together.
Wherein, after step B, further comprise:
Step C, whether monitoring needs the node access network, if execution in step D then, otherwise return execution in step C;
Step D with the direct connection of node access network and disconnected node two side optical fibers, returns execution in step A.
Wherein, whether described monitoring needs node is broken as from network:
Whether the monitoring node power supply operate as normal, thinks and node need be disconnected from network if node work is undesired.
Wherein, whether described monitoring needs node is broken as from network:
The monitoring whether receive indication with node from the equipment webmaster signal that network disconnects, node need be disconnected from network if receive then think.
Wherein, described monitoring whether need with the node access network be:
Whether the monitoring node power supply recovers operate as normal, if recover operate as normal then think need be with the node access network for node power.
Wherein, described monitoring whether need with the node access network be:
Whether monitoring receives the equipment webmaster signal of indication with the node access network, need be with the node access network if receive then think.
Wherein, further comprise between step C and the step D:
Step e 1 starts timer;
Step e 2 judges whether timer arrives predefined time value, if execution in step D then, otherwise execution in step E3;
Whether step e 3, monitoring node power supply operate as normal, if then return execution in step E2, otherwise execution in step E4;
Step e 4, stopping timer and resetting timer value is initial value, returns execution in step C.
Wherein, described node power comprises node main power source and node stand-by power supply.
Wherein, described node power operate as normal is: node main power source and any one operate as normal of node stand-by power supply, or node main power source and node stand-by power supply operate as normal all.
The Networks of Fiber Communications system that adopts node access device provided by the present invention and method and adopt this access device and method, can be when node goes offline, the optical fiber of node both sides is coupled together, make the communication path of this node of process can not interrupt, thereby guaranteed the stability of other node communications in the network because node goes offline.And,,, also can this node be forced bypass or connection, thereby convenient webmaster is to the management of Access Network by the webmaster transmitting order to lower levels if node breaks down even the node power supply is normal.Simultaneously, if adopt redundant configuration, can also avoid the frequent connection of node device power supply or the network configuration frequent variations that interruption causes.
Description of drawings
Fig. 1 is the schematic diagram that two fine looped network generation nodes go offline in the prior art.
Fig. 2 is the schematic diagram that four fine link network generation nodes go offline in the prior art.
Fig. 3 is the block diagram of node access device embodiment one provided by the invention.
Fig. 4 is the block diagram of node access device embodiment two provided by the invention.
Fig. 5 is the flow chart of node cut-in method provided by the invention.
Fig. 6 is the schematic diagram of Networks of Fiber Communications provided by the invention system.
Embodiment
Node access device provided by the present invention and method and the Networks of Fiber Communications system that adopts this access device and method, can be when node goes offline couple together, thereby making that any node goes offline in fiber optic network can not cause other node communications to interrupt with the node bypass and with the optical fiber of node both sides.
For making the purpose, technical solutions and advantages of the present invention clearer, the present invention is described in further detail below in conjunction with drawings and the specific embodiments.
Please refer to Fig. 3, Fig. 3 is the block diagram of node access device embodiment one provided by the invention.This embodiment is used for two fibre web networks.Node access device provided by the invention comprises with lower module:
Light switching controls module 306 is used for the state according to outer signals switches light handover module 301.
Each optical switch comprises four interfaces, is respectively optical fiber interface, optical switch interface, back end interface and control interface.Optical fiber interface is connected to external fiber; The optical switch interface is connected internally to the another one optical switch at node access device; Back end interface is connected to the back-end processing interface of device, and further is connected to the back end processing module on the node; Control interface is connected to light switching controls module, is used for receiving control information and carries out the inner switching that connects of optical switch.
During the node operate as normal, back end interface A1 in the optical switch 302 and optical fiber interface A2 are communicated with, back end interface B1 in the optical switch 303 and optical fiber interface B2 are communicated with, and back end interface C1 in the optical switch 304 and optical fiber interface C2 are communicated with, and back end interface D1 in the optical switch 305 and optical fiber interface D2 are communicated with.The optical switch interface A3 of optical switch 302 and the optical switch interface B3 of optical switch 303 link to each other, and the optical switch interface C3 of optical switch 304 and the optical switch interface D3 of optical switch 305 link to each other.Reception packet on the east orientation optical fiber enters optical switch 302 from the optical fiber interface A2 of the east orientation optical fiber input interface process optical switch 302 of access device, enters node by its rear end interface A1 and does back-end processing; Transmission packet on the east orientation optical fiber is sent by node, enters optical switch from the back end interface B1 of optical switch 303, and the optical fiber interface B2 by optical switch 303 outputs on the east orientation optical fiber through the east orientation optical fiber output interface of access device again.The west of the reception packet access device of west on optical fiber enters optical switch 305 to the optical fiber interface D2 of optical fiber input interface process optical switch 305, enters node by its rear end interface D1 and does back-end processing; The transmission packet of west on optical fiber sent by node, enters optical switch from the back end interface C1 of optical switch 307, and the optical fiber interface C2 by optical switch 307 outputs to the west through the west of access device on optical fiber to the optical fiber output interface again.The packet that node will send enters east orientation optical fiber or the west is to be determined by the back end processing module on the node to optical fiber.
With the node bypass time, the optical fiber interface A2 of optical switch 302 and back end interface A1 disconnect, and optical fiber interface A2 and optical switch interface A3 are communicated with; 303 optical fiber interface B2 of optical switch and back end interface B1 disconnect, and optical fiber interface B2 and optical switch interface B3 are communicated with.Like this, the light signal on the east orientation optical fiber by its optical switch interface A3, by the optical switch interface B3 and the optical fiber interface B2 of optical switch 303, reenters east orientation optical fiber from the optical fiber interface A2 of optical switch 302 again.So just be equivalent to the east orientation optical fiber that is positioned at the node both sides is directly coupled together, node disconnects from optical fiber simultaneously, thereby has realized the bypass of node on east orientation optical fiber.The optical fiber interface C2 of optical switch 304 and back end interface C1 disconnect, and optical fiber interface C2 and optical switch interface C3 are communicated with; 305 optical fiber interface D2 of optical switch and back end interface D1 disconnect, and optical fiber interface D2 and optical switch interface D3 are communicated with.Like this, the light signal of west on optical fiber by its optical switch interface D3, again by the optical switch interface C3 and the optical fiber interface C2 of optical switch 304, reenters the west to optical fiber from the optical fiber interface D2 of optical switch 305.So just be equivalent to the west that is positioned at the node both sides is directly coupled together to optical fiber, node disconnects from optical fiber simultaneously, thereby has realized in the west bypass of node on optical fiber.
The light handover module carries out light and switches by light switching controls module controls.The light handover module also has a power interface and/or a facility network interface tube except the interface of control light handover module.Power interface is connected to the power supply of node device, and the facility network interface tube is connected to the network management communication circuit.When node power supply just often, the power supply of node access device is also normal, at this moment the equipment webmaster signal switches light switch that can receive by the slave unit network management interface.When the node power failure, the power supply of node access device is interrupted thereupon, and it is that optical fiber interface is connected with the optical switch interface that optical switch enters default conditions, thereby with the node bypass.
The source of equipment webmaster signal has two kinds, and a kind of is by other communication line, forms independent webmaster network; Another kind is to utilize existing optical fiber, when the node operate as normal, adopt normal communication mode, when the node bypass,, extracted, as the one-way communication from the webmaster to the node access device with Light splitter toy by in light, adding low frequency, low power signal of communication.For example, the 2MHz low frequency signal that in optical fiber, adds wavelength 1510 nanometers, by 1: 99 Light splitter toy it is told detection in access device the place ahead, or directly detected by power detector, the control board of access device is gone in the stepping of going forward side by side of the facility network interface tube of delivering to access device.When control board switches optical switch by the information decision that receives, with node device access network or therefrom bypass.
At the node power that might occur frequent situation of interrupting and connecting in the short time, for fear of because the network topology that this situation causes frequent variations at short notice can adopt following two kinds of redundant configuration.First kind is to be equipped with backup battery or emergency power supply for node, access node main power source not only on the power interface of optical switch switching controls module simultaneously, also access node backup battery or emergency power supply, it is online and not with its bypass to keep node when node master power failure the short time.Another kind is that control light handover module delay certain hour switches the node access again when the node service restoration, if the node power supply is interrupted once more then kept node to disconnect from network within time of delay, till the node stable power-supplying.Realize that time-delay can utilize equipment webmaster signal, also can be at the inner timer that increases of node access device.
Please refer to Fig. 4, Fig. 4 is the block diagram of node access device embodiment two provided by the invention.This embodiment is used for the single fiber bi-directional network.
In the single fiber bi-directional network, every optical fiber can transmit the light signal of both direction simultaneously, and this normally realizes by technology such as wavelength division multiplexing, space division multiplexings.The node access device that is used for the single fiber bi-directional network provided by the invention comprises:
Light switching controls module 404 is used for the state according to outer signals switches light handover module 401.
Each optical switch comprises four interfaces, is respectively optical fiber interface, optical switch interface, back end interface and control interface.Optical fiber interface is connected to external fiber; The optical switch interface is connected internally to the another one optical switch at node access device; Back end interface is connected to the back-end processing interface of device, and further is connected to the back end processing module on the node; Control interface is connected to light switching controls module, is used for the switching that receiving control information carries out optical switch.
During operate as normal, back end interface E1 in the optical switch 402 and optical fiber interface E2 are communicated with, and back end interface F1 in the optical switch 403 and optical fiber interface F2 are communicated with, and the optical switch interface E3 of optical switch 402 and the optical switch interface F3 of optical switch 403 link to each other.West fiber promptly is connected to the optical fiber of the optical fiber interface E2 of optical switch 402, on the reception packet enter optical switch 402 from the optical fiber interface E2 of optical switch 402, enter node by its rear end interface E1 and do back-end processing; Transmission packet on the west fiber is sent by node, enters optical switch from the back end interface E1 of optical switch 402, and the optical fiber interface E2 by optical switch 402 outputs on the west fiber again.East side optical fiber promptly is connected to the optical fiber of the optical fiber interface F2 of optical switch 403, on the reception packet enter optical switch 403 from the optical fiber interface F2 of optical switch 403, enter node by its rear end interface D1 and do back-end processing; Transmission packet on the optical fiber of east side is sent by node, enters optical switch from the back end interface F1 of optical switch 403, and the optical fiber interface F2 by optical switch 403 outputs to the west on optical fiber again.The packet that node will send enter west fiber still be east side optical fiber be to determine by back end processing module.
When switching the node bypass, 402 optical fiber interface E2 of optical switch and back end interface E1 disconnect, and optical fiber interface E2 and optical switch interface E3 are communicated with; 403 optical fiber interface F2 of optical switch and back end interface F1 disconnect, and optical fiber interface F2 and optical switch interface F3 are communicated with.So just be equivalent to east side optical fiber and west fiber and directly couple together, and node disconnects and being connected of optical fiber, thereby realized the bypass of node.
Identical among the execution mode of light switching controls module and the embodiment one.
Please refer to Fig. 5, Fig. 5 is the flow chart of node cut-in method provided by the invention.
Step 501 is linked into node in the network.
Step 502, it is undesired whether monitoring node main power source and stand-by power supply all work, if execution in step 503 then, otherwise execution in step 502 continues monitoring.The undesired power failure that refers to of working.
Step 503 disconnects node from network, and the optical fiber of node both sides is coupled together.For the single fiber network, node two side optical fibers directly link to each other; For two fibre web networks, the east orientation optical fiber of node both sides directly links to each other, and the west of node both sides directly links to each other to optical fiber.
Step 504, it is undesired whether monitoring node main power source and stand-by power supply all work, if then execution in step 504 continues monitoring, otherwise execution in step 505.
Step 505 starts timer.
Step 506 judges whether timer arrives the predefined time.If think that then power supply is stable, execution in step 507; Otherwise execution in step 508.
Step 507, with the node access network, and the direct connection of disconnected node two side optical fibers, return execution in step 502.
Step 508, it is undesired whether monitoring node main power source and stand-by power supply all work, if then think current power supply instability, execution in step 509, otherwise return execution in step 506.
Step 509, stopping timer and resetting timer is initial value, returns execution in step 504.
In node main power source and/or stand-by power supply normal work period, can also node be disconnected and the optical fiber of node both sides is coupled together from network according to equipment webmaster signal.Equipment webmaster signal can also can be to utilize ready-made fiber optic communication channel transmission by the transmission of specialized apparatus webmaster signaling channel.
Please refer to Fig. 6, Fig. 6 is the schematic diagram of Networks of Fiber Communications provided by the invention system.
Comprise node A, Node B, node C, node D, node E, node F, node G and access device A1, the access device B1, access device C1, access device E1, access device F1, the access device G1 that link to each other with the node correspondence in this system, link to each other by optical fiber between the access device, constitute bidirectional loop network.When node when network disconnects, only be that the connection between node and the corresponding access device disconnects, access device can keep the optical fiber of both sides to be connected, and has so just guaranteed the complete of communication path under the node failure situation.Node D is the access point that Access Network links to each other with metropolitan area network, adopts special disaster tolerance system usually.In general, Network Management Equipment also is positioned at node D.Network Management Equipment can transmit by fiber optic communication channel to the equipment webmaster signal that other each nodes sent also can be by special network management communication Channel Transmission.
Need to prove, be that node in the Access Network inserts though node access device provided by the invention and method be primarily aimed at, is not limited to be used for Access Network.Can cause the occasion that other nodes of part can not proper communication because node goes offline at other, can use node access device provided by the invention.
The above is preferred embodiment of the present invention only, is not to be used to limit protection scope of the present invention.Within the spirit and principles in the present invention all, any modification of being done, be equal to replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (20)
1, the node access device in a kind of fiber optic network is characterized in that, this device comprises with lower module:
The light handover module is used for according to the bypass switching command of light switching controls module node being disconnected from network, and the optical fiber of node both sides directly is communicated with when network disconnects at node;
Light switching controls module is used for sending the bypass switching command to the light handover module.
2, the node access device in the fiber optic network according to claim 1, it is characterized in that, described smooth switching controls module is further used for sending the access switching command to the light handover module, and described smooth handover module is further used for according to the direct connection with node access network and disconnected node two side optical fibers of the access switching command of light switching controls module.
3, the node access device in the fiber optic network according to claim 1, it is characterized in that, described smooth handover module comprises first optical switch, second optical switch, the 3rd optical switch and the 4th optical switch, each optical switch has four interfaces, be respectively optical fiber interface, optical switch interface, back end interface and control interface; The optical fiber interface of first optical switch and second optical switch is the east orientation optical fiber of connected node both sides respectively, and the optical switch interface of first optical switch and second optical switch links to each other; The west of the optical fiber interface difference connected node both sides of the 3rd optical switch and the 4th optical switch is to optical fiber, and the optical switch interface of the 3rd optical switch and the 4th optical switch links to each other; The back end interface of each optical switch all is connected to the back end processing module on the node; The control interface of each optical switch all is connected to light switching controls module; The optical fiber interface of each optical switch links to each other with the optical switch interface or the back end interface of this optical switch in this optical switch inside.
4, the node access device in the fiber optic network according to claim 1, it is characterized in that described smooth handover module comprises first optical switch and second optical switch, each optical switch has four interfaces, be respectively optical fiber interface, optical switch interface, back end interface and control interface; The optical fiber interface of first optical switch and second optical switch is the optical fiber of connected node both sides respectively, and the optical switch interface of two optical switches links to each other; The back end interface of each optical switch all is connected to the back end processing module on the node; The control interface of each optical switch all is connected to light switching controls module; The optical fiber interface of each optical switch links to each other with the optical switch interface or the back end interface of this optical switch in this optical switch inside.
5, the node access device in the fiber optic network according to claim 1 and 2, it is characterized in that, described smooth switching controls module is connected to node power and sends switching command according to the state of node power, interrupt time switching controls module when node power and send the bypass switching command, by the light handover module with the node bypass; Recover time switching controls module when node power and send the access switching command, node is inserted by the light handover module.
6, the node access device in the fiber optic network according to claim 4, it is characterized in that, described node power comprises node main power source and node stand-by power supply, it is that node main power source and node stand-by power supply all interrupt that described node power is interrupted, and it is that any one recovery or two recover in node main power source and the node stand-by power supply that described node power is recovered.
7, according to the node access device in claim 5 or the 6 described fiber optic networks, it is characterized in that described node access device further comprises:
The timer module is used for picking up counting when power up, and judges whether that power supply interrupts once more in the given time, inserts switching command to the light handover module if then allow light switching controls module send.
8, a kind of Networks of Fiber Communications system comprises the node that connects by fiber optic communication channel, it is characterized in that this system further comprises node access device, and this device comprises:
The light handover module is used for according to the bypass switching command of light switching controls module node being disconnected from network, and the optical fiber of node both sides directly is communicated with when network disconnects at node;
Light switching controls module is used for sending the bypass switching command to the light handover module.
9, Networks of Fiber Communications according to claim 8 system is characterized in that this system further comprises:
Network Management Equipment is used for sending equipment webmaster signal to node.
10, Networks of Fiber Communications according to claim 8 system is characterized in that the communication channel between described Network Management Equipment and the node is a fiber optic communication channel.
11, Networks of Fiber Communications according to claim 8 system is characterized in that, the communication channel between described Network Management Equipment and the node is to be the extra network management communication channel of setting up of network management communication.
12, the method that node inserts in a kind of fiber optic network is characterized in that this method comprises:
Steps A, whether monitoring needs node is disconnected from network, if execution in step B then, otherwise return execution in step A;
Step B disconnects node from network, and the optical fiber of these node both sides is directly coupled together.
13, the method that node inserts in the fiber optic network according to claim 12 is characterized in that, further comprises after step B:
Step C, whether monitoring needs the node access network, if execution in step D then, otherwise return execution in step C;
Step D with the direct connection of node access network and disconnected node two side optical fibers, returns execution in step A.
14, the method that node inserts in the fiber optic network according to claim 12 is characterized in that whether described monitoring needs is broken as node from network:
Whether the monitoring node power supply operate as normal, thinks and node need be disconnected from network if node work is undesired.
15, the method that node inserts in the fiber optic network according to claim 12 is characterized in that whether described monitoring needs is broken as node from network:
The monitoring whether receive indication with node from the equipment webmaster signal that network disconnects, node need be disconnected from network if receive then think.
16, the method that node inserts in the fiber optic network according to claim 13 is characterized in that, described monitoring whether need with the node access network be:
Whether the monitoring node power supply recovers operate as normal, if recover operate as normal then think need be with the node access network for node power.
17, the method that node inserts in the fiber optic network according to claim 13 is characterized in that, described monitoring whether need with the node access network be:
Whether monitoring receives the equipment webmaster signal of indication with the node access network, need be with the node access network if receive then think.
18, the method that node inserts in the fiber optic network according to claim 16 is characterized in that, further comprises between step C and the step D:
Step e 1 starts timer;
Step e 2 judges whether timer arrives predefined time value, if execution in step D then, otherwise execution in step E3;
Whether step e 3, monitoring node power supply operate as normal, if then return execution in step E2, otherwise execution in step E4;
Step e 4, stopping timer and resetting timer value is initial value, returns execution in step C.
19, the method that inserts according to node in claim 14 or the 16 or 18 described fiber optic networks is characterized in that described node power comprises node main power source and node stand-by power supply.
20, the method that node inserts in the fiber optic network according to claim 19, it is characterized in that, described node power operate as normal is: node main power source and any one operate as normal of node stand-by power supply, or node main power source and node stand-by power supply operate as normal all.
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| CN 200510115808 CN1964241A (en) | 2005-11-09 | 2005-11-09 | Optical fiber communication network system and access device and method for node at the above system |
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| CN 200510115808 CN1964241A (en) | 2005-11-09 | 2005-11-09 | Optical fiber communication network system and access device and method for node at the above system |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2012159299A1 (en) * | 2011-06-27 | 2012-11-29 | 华为技术有限公司 | Method, system and radio frequency controller for controlling radio frequency bypass switch |
| CN103532626A (en) * | 2012-07-04 | 2014-01-22 | 信泰光学(深圳)有限公司 | Network terminal device and optical fiber network operation method |
| CN106033994A (en) * | 2015-03-16 | 2016-10-19 | 中国移动通信集团广东有限公司 | Light transmission method, light transmission device and light transmission equipment |
| CN113691306A (en) * | 2021-07-08 | 2021-11-23 | 曙光网络科技有限公司 | Method, system and storage medium for protecting optical fiber circuit |
-
2005
- 2005-11-09 CN CN 200510115808 patent/CN1964241A/en active Pending
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2012159299A1 (en) * | 2011-06-27 | 2012-11-29 | 华为技术有限公司 | Method, system and radio frequency controller for controlling radio frequency bypass switch |
| CN103532626A (en) * | 2012-07-04 | 2014-01-22 | 信泰光学(深圳)有限公司 | Network terminal device and optical fiber network operation method |
| CN106033994A (en) * | 2015-03-16 | 2016-10-19 | 中国移动通信集团广东有限公司 | Light transmission method, light transmission device and light transmission equipment |
| CN106033994B (en) * | 2015-03-16 | 2018-09-04 | 中国移动通信集团广东有限公司 | A kind of optical transmission method, device and optical transmission device |
| CN113691306A (en) * | 2021-07-08 | 2021-11-23 | 曙光网络科技有限公司 | Method, system and storage medium for protecting optical fiber circuit |
| CN113691306B (en) * | 2021-07-08 | 2022-09-23 | 曙光网络科技有限公司 | Method, system and storage medium for protecting optical fiber circuit |
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