CN101895792A - Protection system and method based on passive optical network - Google Patents
Protection system and method based on passive optical network Download PDFInfo
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- CN101895792A CN101895792A CN2009101430010A CN200910143001A CN101895792A CN 101895792 A CN101895792 A CN 101895792A CN 2009101430010 A CN2009101430010 A CN 2009101430010A CN 200910143001 A CN200910143001 A CN 200910143001A CN 101895792 A CN101895792 A CN 101895792A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04Q—SELECTING
- H04Q11/00—Selecting arrangements for multiplex systems
- H04Q11/0001—Selecting arrangements for multiplex systems using optical switching
- H04Q11/0062—Network aspects
- H04Q11/0067—Provisions for optical access or distribution networks, e.g. Gigabit Ethernet Passive Optical Network (GE-PON), ATM-based Passive Optical Network (A-PON), PON-Ring
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04Q—SELECTING
- H04Q11/00—Selecting arrangements for multiplex systems
- H04Q11/0001—Selecting arrangements for multiplex systems using optical switching
- H04Q11/0062—Network aspects
- H04Q2011/0079—Operation or maintenance aspects
- H04Q2011/0081—Fault tolerance; Redundancy; Recovery; Reconfigurability
Abstract
The invention discloses a protection system based on passive optical network and a method thereof. The system comprises a setting module used for setting spare optical fiber and spare optical port, a protection server which is used for receiving a fault message from an optical fiber line terminal and sending a control message according to the fault message as well as a protective device which is used for receiving the control message from the protection server and switching according to the control message; wherein the fault message is used for indicating the optical fiber and/or optical port in fault, and the control message is used for indicating that the optical fiber and/or optical port in fault are/is switched to the spare optical fiber and/or optical port. By adopting the invention, the problem that resource waste is caused by protection mechanism of optical access system is solved, and further utilization ratio of optical network equipment is improved.
Description
Technical field
The present invention relates to optical communication field, in particular to a kind of protection system and method based on EPON.
Background technology
In the modern optical access network system, the method for the recovery business of having no progeny in incoming fiber optic interruption or the optical interface is also few.Fig. 1 is the EPON (PON according to correlation technique; abbreviate Passive Optical Network as) the basic boom schematic diagram of network; as shown in Figure 1, recovering the few main cause of operational approach is that the tree structure of multi-plexing light accessing system exists restriction to protection mechanism.Along with the continuous development and the maturation of multi-plexing light accessing system, line speed is improving constantly, and for example, provides 10Gbit/s or higher line speed on an optical fiber; Simultaneously, Optical Access Network loaded service kind also is on the increase, for example, Web TV (Internet Protocol TV, abbreviate IPTV as), visual telephone, the business that these increase newly and traditional access service be coexistence in same Optical Distribution Network (Optical DistributionNetwork abbreviates ODN as).
The characteristic feature of ODN network is that point arrives multiple spot, if break down at trunk cable section, light mouth or optical line terminal equipment, its a plurality of users that connect down are with break in service, and influence surface is bigger.Therefore, operator ensures professional fast quick-recovery with regard to wishing to have a kind of cost wrap protection low and can quick and convenient enforcement, reduces or service disruption causes when avoiding trunk cable section, light mouth or optical line terminal equipment to break down influence.Fig. 2 is the schematic diagram according to the PON protect networks trunk optical fibre protection of correlation technique; Fig. 3 is the schematic diagram according to the full optical fiber of PON protect networks of correlation technique; Fig. 2; optical network unit among Fig. 3 (Optical Network Unit; abbreviate ONU as) in PON LT be connected to optical line terminal (Optical Line Terminal by optical fiber; abbreviate OLT as) in PON LT; Fig. 2 and Fig. 3 have represented the schematic diagram of two kinds of typical protecting networks in the existing multi-plexing light accessing system standard respectively; shown in Figure 2 is a kind of mode of protecting trunk optical fiber, and shown in Figure 3 is another kind of all-fiber protection mode.As can be seen; all there is a problem in this dual mode: in the optical line terminal side all are the 1:1 protections that realize, no matter are trunk optical fibers therefore, or the PON light mouth of optical line terminal; in the deployment of concrete protection mechanism, all can some resource can't use, cause waste.
The problem of the wasting of resources that causes at the protection mechanism of multi-plexing light accessing system in the correlation technique does not propose effective solution at present as yet.
Summary of the invention
The problem of the wasting of resources that causes at the protection mechanism of multi-plexing light accessing system in the correlation technique and propose the present invention, for this reason, main purpose of the present invention is to provide a kind of improved protection scheme based on EPON, to address the above problem.
To achieve these goals, according to an aspect of the present invention, provide a kind of protection system based on EPON.
Protection system based on EPON according to the present invention comprises: module is set, is used to be provided with standby optical fiber and standby optical port; The protection server, be used to receive failure message from optical line terminal, and transmit control message according to failure message, wherein, failure message is used to indicate optical fiber and/or the optical port that breaks down, and control messages is used to indicate optical fiber and/or the optical port that will break down to switch to standby optical fiber and/or standby optical port; Protective device is used to receive the control messages of self-shield server, and switches according to control messages.
Preferably, the protection server also is used under the situation that optical fiber breaks down, and the optical port that will be connected with this optical fiber by control messages indication protective device switches to standby optical fiber by this optical fiber.
Preferably, the protection server also is used under the situation that optical port breaks down, and the optical fiber that will be connected with this optical port by control messages indication protective device switches to standby optical port by this optical port.
Preferably, the protection server user data that also is used for the optical port that will break down copies to standby optical port.
Preferably, the protection server switches to the optical fiber that breaks down and/or optical port after standby optical fiber and/or the standby optical port, also is used to notify optical line terminal to recover professional.
Preferably, protective device is between the optical fiber of the optical port of optical line terminal and this optical port correspondence and/or between optical fiber and optical splitter node.
Preferably, the protection server is one or more, wherein, is that the protection server in strange land obtains control messages from the protection server of this locality under a plurality of situation at the protection server.
Preferably, the protection server in strange land also is used for the control messages that the protection server from this locality obtains is sent to the protective device in strange land, so that the protective device in strange land switches according to control information.
To achieve these goals, according to a further aspect in the invention, provide a kind of guard method based on EPON.
Guard method based on EPON according to the present invention comprises: standby optical fiber and standby optical port are set; Reception is from the failure message of optical line terminal, and wherein, failure message is used to indicate optical fiber and/or the optical port that breaks down; According to failure message optical fiber and/or the optical port that breaks down switched to standby optical fiber and/or standby optical port.
Preferably, according to failure message with the optical fiber that breaks down and/or optical port switches to standby optical fiber and/or standby optical port comprises: under the situation that the failure message indexed optical fiber breaks down, the optical port that will be connected with this optical fiber switches to standby optical fiber by this optical fiber.
Preferably, according to failure message with the optical fiber that breaks down and/or optical port switches to standby optical fiber and/or standby optical port comprises: under the situation that failure message pilot light port breaks down, the optical fiber that will be connected with this optical port switches to standby optical port by this optical port.
Preferably, according to failure message with the optical fiber that breaks down and/or optical port switches to standby optical fiber and/or standby optical port also comprises: the user data of the optical port that breaks down is copied to standby optical port.
Preferably, the optical fiber that breaks down and/or optical port are switched to after standby optical fiber and/or the standby optical port, guard method also comprises: the notice optical line terminal recovers professional.
By the present invention; standby optical fiber and standby optical port are set; control by protection server and protective device; between the input optical signal of protective device and output light signal, connect and interrupt; finish the flexible routing configuration of light signal; solve the problem of the wasting of resources that the protection mechanism of multi-plexing light accessing system causes in the correlation technique, and then improved the utilization ratio of optical network device.
Description of drawings
Accompanying drawing described herein is used to provide further understanding of the present invention, constitutes the application's a part, and illustrative examples of the present invention and explanation thereof are used to explain the present invention, do not constitute improper qualification of the present invention.In the accompanying drawings:
Fig. 1 is the schematic diagram according to the basic boom of the PON network of correlation technique;
Fig. 2 is the schematic diagram according to the PON protect networks trunk optical fiber of correlation technique;
Fig. 3 is the schematic diagram according to the full optical fiber of PON protect networks of correlation technique;
Fig. 4 is the structured flowchart based on the protection system of EPON according to the embodiment of the invention;
Fig. 5 is the flow chart based on the guard method of EPON according to the embodiment of the invention;
Fig. 6 is the schematic diagram that connects according to system under the normal condition of the embodiment of the invention;
Fig. 7 is that the trunk optical fiber according to the embodiment of the invention breaks down the schematic diagram of the connection after protection system is switched;
Fig. 8 is that trunk optical fiber fault and the optical port according to the embodiment of the invention breaks down the schematic diagram of the connection after protection system is switched;
Fig. 9 is that the optical port according to the embodiment of the invention breaks down the schematic diagram of the connection after protection system is switched;
Figure 10 is the schematic diagram according to the allopatric protection system connection of the embodiment of the invention;
Figure 11 is the flow chart according to the local port protection process of the embodiment of the invention;
Figure 12 is the flow chart according to the local trunk protection process of the embodiment of the invention;
Figure 13 is the flow chart according to the strange land trunk protection process of the embodiment of the invention.
Embodiment
Functional overview
Consider the problem of the wasting of resources that the protection mechanism of multi-plexing light accessing system causes in the correlation technique; the embodiment of the invention provides a kind of improved protection scheme based on EPON; standby optical fiber and standby optical port are set; in OLT sidelight module exit; or optical splitter (Splitter) before; perhaps protective device is all placed at two places; control by protection server and protective device; between the input optical signal of protective device and output light signal, connect and interrupt; finish the flexible routing configuration of light signal; reach the purpose of protection, can improve the utilization ratio of optical network device.
Need to prove that under the situation of not conflicting, embodiment and the feature among the embodiment among the application can make up mutually.Describe the present invention below with reference to the accompanying drawings and in conjunction with the embodiments in detail.
System embodiment
According to embodiments of the invention, provide a kind of protection system based on EPON.Fig. 4 is the structured flowchart based on the protection system of EPON according to the embodiment of the invention, and as shown in Figure 4, this system comprises: module 2, protection server 4, protective device 6 are set, below said structure are described.
Protection server 4, be used to receive failure message from OLT, and protective device is controlled according to failure message, transmit control message to protective device, wherein, failure message is used to indicate optical fiber (trunk) and/or the optical port that breaks down, and control messages is used to indicate optical fiber and/or the optical port that will break down to switch to standby optical fiber and/or standby optical port; After this, protection server 4 also is used to notify OLT to recover professional with protection optical port (that is standby optical port) and by this optical port.
Particularly, protection server 4 also is used under the situation that optical fiber breaks down, and the optical port that will be connected with this optical fiber by control messages indication protective device switches to standby optical fiber by this optical fiber; And under the situation that optical port breaks down, the optical fiber that will be connected with this optical port by control messages indication protective device 6 switches to standby optical port by this optical port, and according to protection type (the local protection or allopatric protection) user data of the optical port that breaks down is copied to standby optical port; The catenation sequence of control protective device.
Need to prove that the protection server is one or more, wherein, is that the protection server in strange land obtains control messages from the protection server of this locality under a plurality of situation at the protection server.The protection server in strange land also is used for the control messages that the protection server from this locality obtains is sent to the protective device in strange land, so that the protective device in strange land switches according to control information.
In addition, for communicate by letter with OLT, to the protection server that protective device is controlled, can place OLT machine room or ODN network node or center webmaster machine room.The running status and the business datum of communicating by letter and obtaining the OLT circuit between protection server and the OLT are controlled connection between the turnover of protective device and interruption.
Protective device 6 is used to receive the control messages of self-shield server 4, and switches according to control messages.Wherein, protective device 6 can be between the optical fiber of the optical port of OLT and this optical port correspondence and/or between optical fiber and Splitter node.That is to say that protective device 6 can be placed on the OLT machine room, be connected after the OLT light mouth; Also can be placed on Splitter node place in the ODN network, be placed on before the Splitter; Perhaps above-mentioned two kinds of modes of emplacements comprehensively use, and are used for described OLT light mouth and/or backbone optical cable are carried out the protection of N:1, save the device resource that is used to protect.
Particularly, above-mentioned protective device comprises the interface of external connection optical fiber and control module.The interface that externally connects optical fiber comprises input side and outlet side.The control module here (for example is used to receive external command; above-mentioned control messages) and according to this external command in protective device inside the input side at external optical fiber interface is connected and interrupt operation with outlet side; carry out the flexible selection and the configuration of light signal route with this; can reach the purpose of saving resource conservation, reduce cost effectively.
By this embodiment, a kind of protection scheme based on optical-fiber network is provided, provide the light of local N:1 to insert protection, the N:1 protection in strange land also can be provided simultaneously, improved the utilization ratio of optical network device.
Method embodiment
According to embodiments of the invention, a kind of guard method based on EPON is provided, can be used to realize above-mentioned protection system based on EPON.Fig. 5 is the flow chart based on the guard method of EPON according to the embodiment of the invention, and as shown in Figure 5, this method comprises that following step 502 is to step 506:
Step 502 is provided with standby optical fiber and standby optical port, and one group of standby optical fiber and standby optical port can be set, and many standby optical fiber of group and standby optical port also can be set.
Step 504 receives the failure message from OLT, and wherein, failure message is used to indicate optical fiber and/or the optical port that breaks down.
Step 506 switches to standby optical fiber and/or standby optical port according to failure message with optical fiber and/or the optical port that breaks down.After this, notice OLT recovers professional.
Particularly, under the situation that the failure message indexed optical fiber breaks down, the optical port that will be connected with this optical fiber switches to standby optical fiber by this optical fiber; Under the situation that failure message pilot light port breaks down, the optical fiber that will be connected with this optical port switches to standby optical port by this optical port; And the user data of the optical port that breaks down copied to standby optical port.
So that one group of standby optical fiber and standby optical port are set is example the implementation procedure of the embodiment of the invention is described in detail to Figure 13 below with reference to Fig. 6.
Fig. 6 is the schematic diagram that connects according to system under the normal condition of the embodiment of the invention; as shown in Figure 6; in OLT sidelight module exit and ODN, all place protective device before the optical splitter; wherein; OLT A1 optical module is by L (1) interface of optical fiber connection protective device A, and the R of protective device A (1) interface is connected to L (1) interface of protective device B by the ODN optical-fibre channel.Protective device A and protective device B can switch by the control fibre circuit under the control of protection management server.Concrete operation is as follows:
1, finds that it (may be that trunk optical fiber breaks or the optical port fault that circuit that R (1) interface by protective device A is connected to L (1) interface of protective device B breaks as OLT A1; fault detect belongs to prior art; do not giving unnecessary details at this), send alarm notification to the protection management server.
2, the protection server is according to being trunk optical fiber fault or optical interface fault to protective device A and protective device B sending controling instruction:
A) trunk optical fiber fault: Fig. 7 is that trunk optical fiber according to the embodiment of the invention breaks down, the schematic diagram of the connection after protection system is switched, as shown in Figure 7, protective device A, B carry out following operation after receiving the control command of protecting server to send, and protective device A is connected to output interface R (n+1) with its input interface L (1); Protective device B is connected to output interface R (1) with its input interface L (n+1).
B) trunk optical fiber and optical port simultaneous faults: Fig. 8 are that trunk optical fiber fault and optical port according to the embodiment of the invention breaks down, the schematic diagram of the connection after protection system is switched, as shown in Figure 8, protective device A, B carry out following operation after receiving the control command of protecting server to send, and protective device A is connected to output interface R (n+1) with its input interface L (n+1); Protective device B is connected to output interface R (1) with its input interface L (n+1).
C) optical port fault: Fig. 9 is that optical port according to the embodiment of the invention breaks down; the schematic diagram of the connection after protection system is switched; as shown in Figure 9; protective device A, B carry out following operation after receiving the control command of protecting server to send, and protective device A is connected to output interface R (1) with its input interface L (n+1).
3, under the situation that the optical port fault takes place; the protection server copies to the n+1 port of OLT B with the user data of the input interface L1 of OLT A1, OLT A1 or OLTB start according to the user data that duplicates that optical interface recovers and light separator A1 between data path and business.
Need to prove that present embodiment can also carry out the allopatric protection of trunk optical fiber or optical port.Figure 10 is the schematic diagram according to the allopatric protection system connection of the embodiment of the invention, as shown in figure 10, in above-mentioned step 2, protection server S 1 notice allopatric protection server S 2 is connected to output interface R (n+1) with protective device C with its input interface L (n+1); Protective device B is connected to output interface R (1) with its input interface L (n+1).
Below in conjunction with flow chart present embodiment is elaborated.
Figure 11 is the flow chart according to the local port of embodiment of the invention protection process, and as shown in figure 11, this flow process comprises that following step 1101 is to step 1107:
Step 1101, OLT A finds the L1 link down, gives the protection server with this link down reporting events.
Step 1102, protection server response link down incident, service attribute and relevant information on OLTA inquiry broken link.
Step 1103, OLT A reports service attribute and relevant information on the faulty link to the protection server.
Step 1104, service attribute that the protection server reports according to OLT A and relevant information are determined the optical port that breaks down, and then, protection server notification protective device A disconnects the connection between L1 and the R (1), and connects between L (n+1) and R (1).
Step 1105, protective device A disconnects the connection between L1 and the R (1), and sets up the connection notice protection afterwards server between L (n+1) and the R (1).
Step 1106, protection server notification OLT A recovers the business of L1 interface at L (n+1) interface (that is port).
Step 1107, OLT A recovers to notify the protection server after the professional success.
Figure 12 is the flow chart according to the local trunk protection process of the embodiment of the invention, and as shown in figure 12, this flow process comprises that following step 1201 is to step 1209:
Step 1201, OLT A finds the L link down, gives the protection server with this link down reporting events.
Step 1202, protection server response link down incident, service attribute and relevant information on OLT A inquiry broken link.
Step 1203, OLTA reports service attribute and relevant information on the faulty link to the protection server.
Step 1204; service attribute that the protection server reports according to OLT A and relevant information are determined the trunk optical fiber that breaks down; then, protection server notification protective device A disconnects the connection between L1 and the R (1), and sets up the connection between L (1) and the R (n+1).
Step 1205, protective device A disconnects the connection between L1 and the R (1), and sets up the connection notice protection afterwards server between L (1) and the R (n+1).
Step 1206, protection server notification protective device B disconnects the connection between L1 and the R (1), and sets up the connection between L (n+1) and the R (1).
Step 1207, protective device B disconnects the connection between L1 and the R (1), and sets up the connection notice protection afterwards server between L (n+1) and the R (1).
Step 1208, protection server notification OLT A is connected to the business of L (n+1) the optical fiber link recovery L1 port of protective device B at the R (n+1) by protective device A.
Step 1209, OLT A recovers after the professional success, notice protection server.
Figure 13 is the flow chart according to the strange land trunk protection process of the embodiment of the invention, and as shown in figure 13, this flow process comprises that following step 1301 is to step 1314:
Step 1301, OLT A finds the L1 link down, gives protection server S 1 with this link down reporting events.
Step 1302, protection server S 1 response link down incident, service attribute and relevant information on OLT A inquiry broken link.
Step 1303, OLT A reports service attribute and relevant information road on the faulty link to protection server S 1.
Step 1304, service attribute that the protection server reports according to OLT A and relevant information are determined the trunk optical fiber that breaks down, then, and protection server S 1 notice protective device A dismantle L1 and R (1) link.
Step 1305, notice was protected server S 1 after protective device A removed L1 and R (1) link.
Step 1306, protection server S 1 notice protection server S 2 is set up the L (n+1) of protective device C and the link between the R (n+1).
Step 1307, protection server S 2 notice protection server S 1 have received the request of foundation, and are setting up link.
Step 1308, protection server S 2 notice protective device C set up the link between L (n+1) and the R (n+1).
Step 1309, protective device C sets up the link notice protection afterwards server S 2 of L (n+1) and R (n+1).
Step 1310, protection server S 2 receives protective device C and successfully sets up after the link of L (n+1) and R (n+1), notice protection server S 1.
Step 1311, protection server S 1 notice protective device B dismantle L1 and R (1) link and the link of L (n+1) and R (1).
Step 1312, protective device S1 is removing L1 and R (1) link, and sets up after the link of L (n+1) and R (1), notice protection server S 1.
Step 1313 after protection server S 1 receives the notice of protective device S1, sends to OLT B with OLT A (L1) interface business attribute, and notice OLT B recovers the business of L1 interface at L (n+1) port.
Step 1314, OLTB recovers after the professional success, notice protection server S 1.
Need to prove, can in computer system, carry out in the step shown in the flow chart of above-mentioned accompanying drawing such as a set of computer-executable instructions, and, though there is shown logical order in flow process, but in some cases, can carry out step shown or that describe with the order that is different from herein.
In sum; pass through the above embodiment of the present invention; a kind of improved protection scheme based on EPON is provided; one or more groups standby optical fiber and standby optical port are set; in OLT sidelight module exit; or optical splitter (Splitter) before; perhaps protective device is all placed at two places; control by protection server and protective device; between the input optical signal of protective device and output light signal, connect and interrupt, finish the flexible routing configuration of light signal, reach the purpose of protection; solve the problem of the wasting of resources that the protection mechanism of multi-plexing light accessing system causes in the correlation technique, improved the utilization ratio of optical network device.
Obviously, those skilled in the art should be understood that, above-mentioned each module of the present invention or each step can realize with the general calculation device, they can concentrate on the single calculation element, perhaps be distributed on the network that a plurality of calculation element forms, alternatively, they can be realized with the executable program code of calculation element, thereby, they can be stored in the storage device and carry out by calculation element, perhaps they are made into each integrated circuit modules respectively, perhaps a plurality of modules in them or step are made into the single integrated circuit module and realize.Like this, the present invention is not restricted to any specific hardware and software combination.
The above is the preferred embodiments of the present invention only, is not limited to the present invention, and for a person skilled in the art, the present invention can have various changes and variation.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 (13)
1. the protection system based on EPON is characterized in that, comprising:
Module is set, is used to be provided with standby optical fiber and standby optical port;
The protection server, be used to receive failure message from optical line terminal, and transmit control message according to described failure message, wherein, described failure message is used to indicate optical fiber and/or the optical port that breaks down, and described control messages is used to indicate the described optical fiber and/or the described optical port that will break down to switch to described standby optical fiber and/or described standby optical port;
Protective device is used to receive the described control messages from described protection server, and switches according to described control messages.
2. system according to claim 1; it is characterized in that; described protection server also is used under the situation that optical fiber breaks down, and the optical port of indicating described protective device to be connected with this optical fiber by described control messages switches to described standby optical fiber by this optical fiber.
3. system according to claim 1 and 2; it is characterized in that; described protection server also is used under the situation that optical port breaks down, and the optical fiber of indicating described protective device to be connected with this optical port by described control messages switches to described standby optical port by this optical port.
4. system according to claim 3 is characterized in that, the user data that described protection server also is used for the described optical port that will break down copies to described standby optical port.
5. according to each described system in the claim 1,2 or 4; it is characterized in that; described optical fiber that described protection server will break down and/or described optical port switch to after standby optical fiber and/or the standby optical port, also are used to notify described optical line terminal to recover professional.
6. according to each described system in the claim 1,2,4, it is characterized in that described protective device is between the optical fiber of the optical port of optical line terminal and this optical port correspondence and/or between optical fiber and optical splitter node.
7. according to each described system in the claim 1,2,4; it is characterized in that described protection server is one or more, wherein; under described protection server was a plurality of situation, the protection server in strange land obtained described control messages from the protection server of this locality.
8. system according to claim 7; it is characterized in that; the protection server in described strange land also is used for the described control messages that the protection server from described this locality obtains is sent to the protective device in strange land, so that the protective device in described strange land switches according to described control information.
9. the guard method based on EPON is characterized in that, comprising:
Standby optical fiber and standby optical port are set;
Reception is from the failure message of optical line terminal, and wherein, described failure message is used to indicate optical fiber and/or the optical port that breaks down;
The described optical fiber and/or the described optical port that will break down according to described failure message switch to standby optical fiber and/or standby optical port.
10. method according to claim 9 is characterized in that, the described optical fiber that will break down according to described failure message and/or described optical port switches to standby optical fiber and/or standby optical port comprises:
Under the situation that described failure message indexed optical fiber breaks down, the optical port that will be connected with this optical fiber switches to described standby optical fiber by this optical fiber.
11., it is characterized in that the described optical fiber that will break down according to described failure message and/or described optical port switches to standby optical fiber and/or standby optical port comprises according to claim 9 or 10 described methods:
Under the situation that described failure message pilot light port breaks down, the optical fiber that will be connected with this optical port switches to described standby optical port by this optical port.
12. method according to claim 11 is characterized in that, the described optical fiber that will break down according to described failure message and/or described optical port switches to standby optical fiber and/or standby optical port also comprises:
The user data of the described optical port that breaks down is copied to described standby optical port.
13., it is characterized in that the described optical fiber that breaks down and/or described optical port are switched to after standby optical fiber and/or the standby optical port, and described guard method also comprises according to each described method in the claim 9,10,12:
Notify described optical line terminal to recover professional.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009101430010A CN101895792A (en) | 2009-05-21 | 2009-05-21 | Protection system and method based on passive optical network |
| PCT/CN2009/074921 WO2010133065A1 (en) | 2009-05-21 | 2009-11-12 | Protection system and method based on the passive optical network |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009101430010A CN101895792A (en) | 2009-05-21 | 2009-05-21 | Protection system and method based on passive optical network |
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| CN101895792A true CN101895792A (en) | 2010-11-24 |
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| CN2009101430010A Pending CN101895792A (en) | 2009-05-21 | 2009-05-21 | Protection system and method based on passive optical network |
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| WO (1) | WO2010133065A1 (en) |
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| CN102684780A (en) * | 2012-02-27 | 2012-09-19 | 武汉市普林电子有限责任公司 | Optical network protecting method and optical fiber line switching equipment |
| CN102684810A (en) * | 2012-01-18 | 2012-09-19 | 徐志国 | Optical network protection method, optical link switching control device and optical link switching control system |
| CN103441792A (en) * | 2013-08-19 | 2013-12-11 | 无锡路通视信网络股份有限公司 | Multi-channel optical fiber automatic backup device for broadcasting network |
| CN111344962A (en) * | 2017-11-22 | 2020-06-26 | 华为技术有限公司 | Network interface switching method of optical network unit and optical network unit |
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| CN102136965B (en) * | 2010-12-24 | 2013-12-04 | 华为技术有限公司 | Method for detecting tunnel faults and traffic engineering (TE) node |
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| JP3350926B2 (en) * | 1999-03-30 | 2002-11-25 | 日本電気株式会社 | PON protection switching method and apparatus |
| JP2007324853A (en) * | 2006-05-31 | 2007-12-13 | Oki Electric Ind Co Ltd | Optical communication system |
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| CN101237254A (en) * | 2008-02-27 | 2008-08-06 | 杭州华三通信技术有限公司 | Optical fiber protection inverse device, method and passive optical network system with the device |
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2009
- 2009-05-21 CN CN2009101430010A patent/CN101895792A/en active Pending
- 2009-11-12 WO PCT/CN2009/074921 patent/WO2010133065A1/en active Application Filing
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| CN102684810A (en) * | 2012-01-18 | 2012-09-19 | 徐志国 | Optical network protection method, optical link switching control device and optical link switching control system |
| CN102684810B (en) * | 2012-01-18 | 2015-07-22 | 徐志国 | Optical network protection method, optical link switching control device and optical link switching control system |
| CN102684780A (en) * | 2012-02-27 | 2012-09-19 | 武汉市普林电子有限责任公司 | Optical network protecting method and optical fiber line switching equipment |
| CN102684780B (en) * | 2012-02-27 | 2015-02-25 | 武汉普林光通科技有限公司 | Optical network protecting method and optical fiber line switching equipment |
| CN103441792A (en) * | 2013-08-19 | 2013-12-11 | 无锡路通视信网络股份有限公司 | Multi-channel optical fiber automatic backup device for broadcasting network |
| CN103441792B (en) * | 2013-08-19 | 2016-05-04 | 无锡路通视信网络股份有限公司 | For the multi-channel optical fibre automatic backup device of radio network |
| CN111344962A (en) * | 2017-11-22 | 2020-06-26 | 华为技术有限公司 | Network interface switching method of optical network unit and optical network unit |
| CN111344962B (en) * | 2017-11-22 | 2022-01-11 | 华为技术有限公司 | Network interface switching method of optical network unit and optical network unit |
| WO2024002275A1 (en) * | 2022-06-29 | 2024-01-04 | 中兴通讯股份有限公司 | Trunk optical path protection method and system, optical matrix device, electronic device, and medium |
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