CN101867411B - Realize the method, system and device of passive optical network optical fiber protection - Google Patents
Realize the method, system and device of passive optical network optical fiber protection Download PDFInfo
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- CN101867411B CN101867411B CN201010203701.7A CN201010203701A CN101867411B CN 101867411 B CN101867411 B CN 101867411B CN 201010203701 A CN201010203701 A CN 201010203701A CN 101867411 B CN101867411 B CN 101867411B
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B10/00—Transmission systems employing electromagnetic waves other than radio-waves, e.g. infrared, visible or ultraviolet light, or employing corpuscular radiation, e.g. quantum communication
- H04B10/03—Arrangements for fault recovery
- H04B10/032—Arrangements for fault recovery using working and protection systems
Abstract
The present invention discloses a kind of method, system and device realizing passive optical network optical fiber protection, wherein method comprises: be connected with the second line of a couplet mouth of the first optical line terminal and the second optical line terminal respectively two of each optical network unit in a pair optical network unit upper united mouths; Each edge router be connected with the second optical line terminal with the first optical line terminal carries a business, and uses different second line of a couplet ports to be connected with the upper united mouth of the first optical line terminal with the second optical line terminal respectively; Two link configuration that each optical network unit is arrived same edge router through the first optical line terminal and the second optical line terminal are two links protected each other.The starting point of the present invention is the protection of all-fiber link realizing XPON and the protection based on business.
Description
Technical field
The present invention relates to intelligent acess technology, particularly relate to the method, system and device of EPON (PON, PassiveOpticalNetwork) fiber optic protection.
Background technology
Ethernet passive optical network is a kind of novel intelligent acess network technology, and it adopts point-to-multipoint structure and passive fiber transmission, on Ethernet, provide multiple business.It adopts PON technology in physical layer, uses Ethernet protocol, utilize the topological structure of PON to achieve the access of Ethernet at link layer.Therefore, it combines the advantage of PON technology and ethernet technology: low cost, high bandwidth, and autgmentability is strong, and service reconfiguration is quick flexibly, compatible with existing Ethernet, convenient management etc.
In the last few years, the userbase of Access Network constantly expanded, also growing to the requirement of network broadband, and PON meets the objective requirement of network Development and fusion as the broadband access technology of a new generation, and the application in Access Network is increasingly extensive.But in access network construction, PON system, close to user distance, because of various application and environment for use complexity, is easy to, by the impact of the ignorance factors such as urban construction, cause optical fiber link discontinuity events.Therefore, an urgent demand PON system can provide efficient optical fiber link protection scheme, and when optical fiber link generation significant trouble, the reliably protecting that can realize business within the time short is as far as possible switched.
China Telecom proposes the model (type A, type B, Type C, type D) of several fiber optic protection in EPONV2.1 specification (agreement), and the above two belong to trunk optical fibre protection, and rear both then belong to all-fiber protection.This agreement has only been done physical model and has been described simply; provide the extended operation management maintenance (OAM simply switched; OperationAdministrationMaintenance) frame format definition; and do not provide concrete implementation method; and agreement only gives and simply switches order, the robustness of whole protection system and practicality are not all done and discusses further.
Simultaneously, the application of XPON (all kinds of EPON) system in power industry also gets more and more, and the stability requirement of electric power system to network is higher, electric power Ethernet PON (EPON, EthernetPON) in standard, simple definition has been done to networking mode of handing in hand, each optical network unit (ONU, OpticalNetworkUnit) ca bin (FTU is hung below, FeederTerminalUnit) monitoring device, main website or substation connect two optical line terminal (OLT by router, OpticalLineTerminal), require EPON system ensure main website or between substation and FTU link unimpeded, automatically link protection can be realized in the situation of OLT fiber break, traffic affecting does not continue.
Can find from above XPON systematic difference situation; current great majority protection is main, and what pay close attention to is fiber optic protection between OLT to ONU; and OLT first line of a couplet port and link failure are not considered; because the upper united mouth of OLT is the interface channel of XPON system and upper layer network; it is also a part for XPON system, therefore also should belong to a part for XPON system protection.Further, current protection is mostly based on optical link, and also namely when optical link destroys, all business on it all will pour on another protection link, and can not distinguish business, namely can not protect accordingly for business.
Summary of the invention
Technical problem to be solved by this invention is to provide the method, system and device realizing passive optical network optical fiber protection, can carry out reliably protecting to all-fiber link of XPON.
In order to solve the problems of the technologies described above, the invention provides a kind of method realizing passive optical network optical fiber protection, comprising:
Two of each optical network unit in a pair optical network unit upper united mouths are connected with the second line of a couplet mouth of the first optical line terminal and the second optical line terminal respectively;
Each edge router be connected with the second optical line terminal with the first optical line terminal carries a business, and uses different second line of a couplet ports to be connected with the upper united mouth of the first optical line terminal with the second optical line terminal respectively;
Two link configuration that each optical network unit is arrived same edge router through the first optical line terminal and the second optical line terminal are two links protected each other.
Further,
First optical line terminal is connected with multiple edge router with the second optical line terminal, and the upper united mouth that the first optical line terminal and the second optical line terminal are connected from different edge router is different.
Further, the method also comprises:
By two of edge router second line of a couplet port arrangement for isolating; and two corresponding with exchange chip in optical network unit for two of each optical network unit upper united mouths gigabit ethernet ports are configured to isolate, subsequently by business configuration on two links protected each other.
Further, the method also comprises:
Send the Business Stream of multiple business from optical network unit, each Business Stream arrives corresponding edge router select to compete the stable Business Stream of a winning link establishment in the link protected each other accordingly after respectively.
Further, the method also comprises:
When the link occurs fault of in the link protected each other, the Business Stream of corresponding service by auto switching on the protection link corresponding with the link broken down.
Further, if fault occurs on the link between optical line terminal and edge router, then the Business Stream of corresponding service is by auto switching on the protection link corresponding with the link broken down, and specifically comprises:
Edge router detects the link interruption of its second line of a couplet port, then port corresponding for inner exchanging chip is set to off-state, then the address information of this port is removed automatically, Business Stream is descending by another second line of a couplet port of this edge router, arrives corresponding optical network unit by the optical line terminal of respective link;
This optical network unit carries out address learning and the migration of upper united mouth according to descending Business Stream, and up Business Stream is also moved on this upper united mouth, thus the pretection switch of finishing service stream.
Further, if fault occurs on the optical link between optical line terminal and optical network unit, then the Business Stream of corresponding service is by auto switching on the protection link corresponding with the link broken down, and specifically comprises:
Optical network unit detects the link interruption of its upper united mouth, then the gigabit ethernet port of correspondence is set to off-state; The address information of this gigabit ethernet port is removed automatically, and Business Stream is up by another upper united mouth of this optical network unit, and arrives corresponding edge router by the optical line terminal of respective link;
This edge router carries out address learning and the migration of second line of a couplet mouth according to up Business Stream, makes descending service flow transfer on this second line of a couplet mouth, thus the pretection switch of finishing service stream.
In order to solve the problems of the technologies described above, the invention provides a kind of network system realizing passive optical network optical fiber protection, comprising: a pair optical network unit, the first optical line terminal and the second optical line terminal and at least one edge router, wherein:
Two upper united mouths of each optical network unit in a pair optical network unit are connected through optical splitter with the first optical line terminal and the second optical line terminal second line of a couplet mouth separately respectively;
First optical line terminal is connected same edge router with the second optical line terminal;
Each edge router carries a business, and uses different second line of a couplet ports to be connected with the upper united mouth of the first optical line terminal with the second optical line terminal respectively;
Two link configuration that each optical network unit arrives same edge router through the first optical line terminal and the second optical line terminal are the link protected each other.
Further,
First optical line terminal is connected with multiple edge router with the second optical line terminal, and the upper united mouth that the first optical line terminal and the second optical line terminal are connected from different edge router is different.
Further, optical network unit, except comprising two upper united mouths, also comprises two optical modules, two PONMAC modules and exchange chip, wherein:
Each optical module is correspondingly connected with a PONMAC module, the second line of a couplet mouth of each PONMAC module is connected with two gigabit ethernet ports of described exchange chip respectively, and two gigabit ethernet ports are correspondingly connected to two upper united mouths of described optical network unit respectively; Two fast ethernet ports of exchange chip carry different business respectively.
Further,
Described two second line of a couplet port arrangement of edge router are isolation;
Two gigabit ethernet ports that two upper united mouths of optical network unit are corresponding with in optical network unit are configured to isolate.
Further,
When the link occurs fault of in the link protected each other, the Business Stream of corresponding service by auto switching on the protection link corresponding with the link broken down.
Further,
Edge router detects the link interruption of its second line of a couplet port, then port corresponding for inner exchanging chip is set to off-state, then the address information of this port is removed automatically, Business Stream is descending by another second line of a couplet port of this edge router, arrives corresponding optical network unit by the optical line terminal of respective link;
This optical network unit carries out address learning and the migration of upper united mouth according to descending Business Stream, and up Business Stream is also moved on this upper united mouth, thus the pretection switch of finishing service stream.
Further,
Optical network unit detects the link interruption of its upper united mouth, then the gigabit ethernet port of correspondence is set to off-state; The address information of this gigabit ethernet port is removed automatically, and Business Stream is up by another upper united mouth of this optical network unit, and arrives corresponding edge router by the optical line terminal of respective link;
This edge router carries out address learning and the migration of second line of a couplet mouth according to up Business Stream, makes descending service flow transfer on this second line of a couplet mouth, thus the pretection switch of finishing service stream.
In order to solve the problems of the technologies described above, the invention provides a kind of optical network unit realizing passive optical network optical fiber protection, comprise two upper united mouths, two optical modules, two PONMAC modules and exchange chips, wherein:
Each optical module is correspondingly connected with a PONMAC module, the second line of a couplet mouth of each PONMAC module is connected with two gigabit ethernet ports of exchange chip respectively, and two gigabit ethernet ports are correspondingly connected to two upper united mouths of optical network unit respectively; Two fast ethernet ports of exchange chip carry different business respectively.
Further, two gigabit ethernet ports of exchange chip are configured to isolation.
Adopt method, system and device provided by the invention, compared with the existing methods comparatively, its starting point is in the protection of all-fiber link of XPON and the protection based on business.The present invention owing to providing effective protection to OLT upper united mouth optical fiber link, thus provides the available protecting model of all-fiber link to XPON.When working optical fibre breaks down at any link section; all can automatically the Backup lightpath of business datum from correspondence be forwarded; the multiple different upper united mouth configured due to same OLT can carry different business; thus use the upper united mouth of two OLT to protect each other in pairs, the reliably protecting based on concrete business can be realized.
Accompanying drawing explanation
Fig. 1 is the structured flowchart realizing system one embodiment of passive optical network optical fiber protection of the present invention;
Fig. 2 is the structured flowchart realizing another embodiment of system of passive optical network optical fiber protection of the present invention;
Fig. 3 is the ONU structured flowchart realizing passive optical network optical fiber protection of the present invention;
Fig. 4 is the flow chart realizing the embodiment of the method for passive optical network optical fiber protection of the present invention;
Fig. 5 is the implementing procedure figure of the Business Stream auto switching occurring in link failure between OLT upper united mouth to SR in embodiment of the method shown in Fig. 4;
Fig. 6 is the implementing procedure figure of the Business Stream auto switching occurring in optical link fault between OLT second line of a couplet mouth to ONU in embodiment of the method shown in Fig. 4.
Embodiment
Being described in detail technical scheme of the present invention below in conjunction with accompanying drawing and preferred embodiment.The embodiment below exemplified only for instruction and explanation of the present invention, and does not form the restriction to technical solution of the present invention.
As shown in Figure 1, be the networking structure realizing system one embodiment of passive optical network optical fiber protection provided by the invention, this embodiment is to describe technical scheme of the present invention for the model of each link bearer two business.
System embodiment shown in Fig. 1 comprises: the edge router (SR1 and SR2) of two optical links that two ONU (ONU1 and ONU2) and two OLT (OLT1 and OLT2) are formed and carrying two different business (business 1 and business 2), wherein:
OLT1 separates two-way optical fiber by its second line of a couplet mouth PON1-D through corresponding optical splitter (i.e. the blockage at PON1-D place in figure, its splitting ratio is 1: N), is connected respectively with the upper united mouth PONC2-U of upper united mouth PONC1-U with ONU2 of ONU1; OLT2 separates two-way optical fiber by its second line of a couplet mouth PON2-D through corresponding optical splitter (in figure the blockage at PON2-D place, its splitting ratio is 1: N), is connected respectively with the upper united mouth POND2-U of upper united mouth POND1-U with ONU2 of ONU1; Connection business main website 1 SR1 carrying business 1 are connected with a upper united mouth PONA2-U of upper united mouth PONA1-U with OLT2 of OLT1 with port B1 respectively by the port A1 of two second line of a couplet; Connection business main website 2 SR2 carrying business 2 are connected with another upper united mouth PONB2-U of another upper united mouth PONB1-U with OLT2 of OLT1 with port B3 respectively by the port A2 of two second line of a couplet.
In said system embodiment; form respectively by two of OLT1 and OLT2 links the link protected each other between SR1 and ONU1; form respectively by two of OLT2 and OLT1 links the link protected each other between SR2 and ONU2; both realize the available protecting of the link more than to OLT upper united mouth, also realize the available protecting of the optical fiber link below to OLT second line of a couplet mouth.
On OLT1 and OLT2, respectively each ONU (ONU1 and ONU2) is registered as independently ONU and configures.
SR must isolate with the port of two second lines of a couplet that two OLT are connected, and makes the traffic data from OLT is up not allow to be forwarded to another one OLT by SR.
Subsequently by business configuration on the link protected each other, make business 1 can arrive business main website 1 by ONU1 or ONU2 from the upper united mouth of OLT1 and OLT2, business 2 can arrive business main website 2 by ONU1 or ONU2 from the upper united mouth of OLT1 and OLT2.
By two link protected each other conductings when normal that two OLT are formed between each ONU and each SR, Business Stream is in race condition above, and can select to compete a winning link as service aisle.
Because two upper united mouths on an OLT carry different business by different SR, two pairs of upper united mouths on two OLT are formed protects port each other, can realize the protection based on concrete business (being carried on the different upper united mouths on OLT by SR).When breaking down in the link of in the link protected each other, the Business Stream auto switching of business 1 or business 2 is on the protection link of correspondence.
System embodiment shown in Fig. 1 describes for the model of a link bearer two business, in fact, article one, link can carry multiple different business, only need increase the upper united mouth of respective number and configure the SR of respective number on corresponding OLT, as shown in Figure 2.
Realizing in the system embodiment of passive optical network optical fiber protection shown in Fig. 1 or Fig. 2, the internal structure of ONU as shown in Figure 3, two optical module is adopted to protect Business Stream with the mode of two PONMAC chip (also can be described as PONMAC module), namely optical module 1 and optical module 2 are connected with PONMAC chip 2 with corresponding PONMAC chip 1 respectively, the second line of a couplet mouth of each PONMAC chip is connected respectively to two gigabit Ethernet (GE of exchange chip, GigabitEthernet) port (is called for short GE mouth, i.e. GE1 mouth and GE2 mouth) on, two Fast Ethernet (FE of exchange chip, FastEthernet) port (is called for short FE mouth, i.e. FE1 mouth and FE2 mouth) carry two different business (i.e. business 1 and business 2) respectively, the inner protection to different business stream of ONU can be realized like this.
The GE1 mouth (being connected with a upper united mouth of ONU) of the exchange chip in ONU will be isolated with GE2 mouth (being connected with another upper united mouth of ONU), makes the traffic data going downwards to a corresponding ONU upper united mouth from an OLT not be up to another one OLT by another upper united mouth of this ONU.
Exchange chip carrys out the protection of finishing service stream by (GE1 mouth or GE2 mouth) in selection two GE mouths as upper united mouth.When a link occurs fault, Business Stream can from the forwarding of another GE mouth finishing service data.
Fault may occur on the optical link between OLT to ONU, also may occur on the link between OLT upper united mouth to SR.
When fault occurs on the link between OLT upper united mouth to SR:
For example, the Business Stream of business 1 is arrive SR1 from OUN1 by OLT1 under normal circumstances.When SR1 detects the link interruption of its second line of a couplet port A1, then port (not shown) corresponding for its inner exchanging chip is set to disconnect (down) state, then the mac address information of this port is removed automatically, the Business Stream of business 1 is descending by another second line of a couplet port B1 of SR1, and arrives OUN1 by OLT2;
The exchange chip of the ONU1 Business Stream descending according to business 1 carries out MAC address learning and the migration of upper united mouth POND1-U, and up Business Stream is also moved on the POND1-U of this upper united mouth, thus the pretection switch of finishing service stream.
When fault occurs on the optical link between OLT to ONU:
For example, the Business Stream of business 1 is arrive SR1 from OUN1 by OLT1 under normal circumstances.When ONU1 detects the link interruption of its upper united mouth PONC1-U, then GE1 mouth corresponding on its inner exchanging chip is set to down state; The mac address information of this GE1 mouth is removed automatically, then the Business Stream of business 1 is just up by another upper united mouth POND1-U of ONU1, and arrives SR1 by OLT2;
The exchange chip (not showing in Fig. 1) of SR1 carries out MAC address learning and the migration of second line of a couplet port B1 according to up Business Stream; the Business Stream making it descending also moves on this second line of a couplet port B1; and arrive ONU1 by OLT2, thus the pretection switch of finishing service stream.
The present invention is directed to said system embodiment, also accordingly provide the embodiment of the method realizing passive optical network optical fiber protection, its flow process as shown in Figure 4, comprises the steps:
110: set up protecting network, namely two upper united mouths that in a pair ONU, each ONU configures are connected through optical splitter with OLT1 and OLT2 second line of a couplet mouth separately respectively, OLT1 with an OLT2 upper united mouth is separately connected with two second line of a couplet ports of the SR of a carrying business respectively; Each ONU arrives SR link through OLT1 forms through the link of OLT2 arrival SR the link protected each other with this ONU;
OLT1 with OLT2 another upper united mouth is separately connected with two second line of a couplet ports of the SR of another business of carrying respectively, as shown in Figure 1.
Certainly, OLT1 with OLT2 multiple upper united mouths separately can be connected with two second line of a couplet ports of each SR of multiple SR of carrying different business respectively, as shown in Figure 2.
Each ONU (ONU1 and ONU2) registers as independently ONU and configures by two OLT (OLT1 and OLT2) respectively.
120: the second line of a couplet port arrangement that each SR is connected with each OLT for isolate, and two GE mouths of exchange chip in each ONU are configured to isolation, subsequently by business configuration on two links protected each other;
The second line of a couplet port arrangement be connected by SR with OLT is isolation, is to make the traffic data from OLT is up not allow to be forwarded to another one OLT by SR.
The GE1 mouth of exchange chip in ONU and GE2 mouth being configured to isolation, is to make the traffic data going downwards to a upper united mouth of corresponding ONU from an OLT not be up to another one OLT by another upper united mouth of this ONU.
By business configuration on two links protected each other, such as make business 1 can arrive business main website 1 by ONU1 or ONU2 from the upper united mouth of OLT1 and OLT2, business 2 can arrive business main website 2 by ONU1 or ONU2 from the upper united mouth of OLT1 and OLT2.
130: the Business Stream sending different business from ONU, each Business Stream arrives corresponding business main website after selecting winning one of competition to set up stable Business Stream on two links protected each other respectively;
For example from the Business Stream sending business 1 and business 2, each Business Stream arrives corresponding SR respectively, thus reaches corresponding business main website after selecting winning one of competition to set up stable Business Stream on two links protected each other.
140: when breaking down in the link of in the link protected each other, the Business Stream of corresponding service by auto switching on the protection link of correspondence.
Carry out the implementing procedure of Business Stream auto switching as shown in Figure 5 when fault in the diagram occurs on the link between OLT upper united mouth to SR, comprise the steps:
1401a: when SR detects the link interruption of one second line of a couplet port, then port corresponding for its inner exchanging chip is set to off-state, then the mac address information of this port is removed automatically, the Business Stream of corresponding service is descending by another second line of a couplet port of this SR, arrives ONU by the OLT of respective link;
1402a:ONU carries out MAC address learning and the migration of upper united mouth according to descending Business Stream, and up Business Stream is also moved on this upper united mouth, thus the pretection switch of finishing service stream.
Carry out the implementing procedure of Business Stream auto switching as shown in Figure 6 when fault in the diagram occurs on the optical link between OLT to ONU, comprise the steps:
1401b:ONU detects the link interruption of one upper united mouth, then GE mouth corresponding for its inner exchanging chip is set to off-state; The mac address information of this GE mouth is removed automatically, and Business Stream is up by another upper united mouth of this ONU, and arrives SR by the OLT of respective link;
1402b:SR carries out MAC address learning and the migration of second line of a couplet mouth according to up Business Stream, makes descending service flow transfer on this second line of a couplet mouth, thus the pretection switch of finishing service stream.
Above embodiment of the method, owing to providing occurring in link failure between OLT upper united mouth to SR and occurring in the pretection switch of optical link fault between OLT second line of a couplet mouth to ONU simultaneously, thus provides the reliably protecting of all-fiber link to XPON.And; it is no matter the fault for occurring in link between OLT upper united mouth to SR; or for the fault occurring in optical link between OLT to ONU; because the upper united mouth that same OLT is different carries different business; so link switchover is just for a business but not for all business, thus realize the fiber optic protection based on business.
The all or part of step that one of ordinary skill in the art will appreciate that in said method is carried out instruction related hardware by program and is completed, and described program can be stored in computer-readable recording medium, as read-only memory, disk or CD etc.Alternatively, all or part of step of above-described embodiment also can use one or more integrated circuit to realize.Correspondingly, each module in above-described embodiment can adopt the form of hardware to realize, and the form of software function module also can be adopted to realize.The present invention is not restricted to the combination of the hardware and software of any particular form.
Claims (13)
1. realize a method for passive optical network optical fiber protection, comprising:
Two of each optical network unit in a pair optical network unit upper united mouths are connected with the second line of a couplet mouth of the first optical line terminal and the second optical line terminal respectively;
Each edge router be connected with the second optical line terminal with the first optical line terminal carries a business, and uses different second line of a couplet ports to be connected with the upper united mouth of the first optical line terminal with the second optical line terminal respectively;
Two link configuration that each optical network unit is arrived same edge router through the first optical line terminal and the second optical line terminal are two links protected each other;
Send the Business Stream of multiple business from described optical network unit, each Business Stream arrives corresponding edge router select to compete the stable Business Stream of a winning link establishment in the link protected each other accordingly after respectively.
2. in accordance with the method for claim 1, it is characterized in that,
First optical line terminal is connected with multiple edge router with the second optical line terminal, and the upper united mouth that the first optical line terminal and the second optical line terminal are connected from different edge router is different.
3. according to the method described in claim 1 or 2, it is characterized in that, also comprise:
By described two second line of a couplet port arrangement of described edge router for isolating; and two corresponding with exchange chip in described optical network unit for two of each optical network unit upper united mouths gigabit ethernet ports are configured to isolate, subsequently by business configuration on two links protected each other.
4. in accordance with the method for claim 3, it is characterized in that, also comprise:
When a link occurs fault in the described link protected each other, the Business Stream of corresponding service by auto switching on the protection link corresponding with the link broken down.
5. in accordance with the method for claim 4; it is characterized in that; if described fault occurs on the link between described optical line terminal and described edge router, then the Business Stream of described corresponding service is by auto switching on the protection link corresponding with the link broken down, and specifically comprises:
Described edge router detects the link interruption of its second line of a couplet port, then port corresponding for inner exchanging chip is set to off-state, then the address information of this port is removed automatically, described Business Stream is descending by another second line of a couplet port of this edge router, arrives corresponding optical network unit by the optical line terminal of respective link;
This optical network unit carries out address learning and the migration of upper united mouth according to descending Business Stream, and up Business Stream is also moved on this upper united mouth, thus the pretection switch of finishing service stream.
6. in accordance with the method for claim 4; it is characterized in that; if described fault occurs on the optical link between described optical line terminal and described optical network unit, then the Business Stream of described corresponding service is by auto switching on the protection link corresponding with the link broken down, and specifically comprises:
Described optical network unit detects the link interruption of its upper united mouth, then the described gigabit ethernet port of correspondence is set to off-state; The address information of this gigabit ethernet port is removed automatically, and described Business Stream is up by another upper united mouth of this optical network unit, and arrives corresponding edge router by the optical line terminal of respective link;
This edge router carries out address learning and the migration of second line of a couplet mouth according to up Business Stream, makes descending service flow transfer on this second line of a couplet mouth, thus the pretection switch of finishing service stream.
7. realize a network system for passive optical network optical fiber protection, comprising: a pair optical network unit, the first optical line terminal and the second optical line terminal and at least one edge router, wherein:
Two upper united mouths of each optical network unit in described a pair optical network unit are connected through optical splitter with the first optical line terminal and the second optical line terminal second line of a couplet mouth separately respectively;
Described first optical line terminal is connected same edge router with the second optical line terminal;
Each edge router carries a business, and uses different second line of a couplet ports to be connected with the upper united mouth of the first optical line terminal with the second optical line terminal respectively;
Two link configuration that each optical network unit arrives same edge router through the first optical line terminal and the second optical line terminal are the link protected each other;
Send the Business Stream of multiple business from described optical network unit, each Business Stream arrives corresponding edge router select to compete the stable Business Stream of a winning link establishment in the link protected each other accordingly after respectively.
8., according to network system according to claim 7, it is characterized in that,
First optical line terminal is connected with multiple edge router with the second optical line terminal, and the upper united mouth that the first optical line terminal and the second optical line terminal are connected from different edge router is different.
9. according to the network system described in claim 7 or 8, it is characterized in that, described optical network unit, except comprising two upper united mouths, also comprises two optical modules, two PONMAC modules and exchange chip, wherein:
Each optical module is correspondingly connected with a PONMAC module, the second line of a couplet mouth of each PONMAC module is connected with two gigabit ethernet ports of described exchange chip respectively, and described two gigabit ethernet ports are correspondingly connected to two upper united mouths of described optical network unit respectively; Two fast ethernet ports of described exchange chip carry different business respectively.
10., according to network system according to claim 9, it is characterized in that,
Described two second line of a couplet port arrangement of described edge router are isolation;
Described two gigabit ethernet ports that two upper united mouths of described optical network unit are corresponding with in described optical network unit are configured to isolate.
11., according to network system according to claim 10, is characterized in that,
When a link occurs fault in the described link protected each other, the Business Stream of corresponding service by auto switching on the protection link corresponding with the link broken down.
12., according to network system according to claim 11, is characterized in that,
Described edge router detects the link interruption of its second line of a couplet port, then port corresponding for inner exchanging chip is set to off-state, then the address information of this port is removed automatically, described Business Stream is descending by another second line of a couplet port of this edge router, arrives corresponding optical network unit by the optical line terminal of respective link;
This optical network unit carries out address learning and the migration of upper united mouth according to descending Business Stream, and up Business Stream is also moved on this upper united mouth, thus the pretection switch of finishing service stream.
13., according to network system according to claim 11, is characterized in that,
Described optical network unit detects the link interruption of its upper united mouth, then the described gigabit ethernet port of correspondence is set to off-state; The address information of this gigabit ethernet port is removed automatically, and described Business Stream is up by another upper united mouth of this optical network unit, and arrives corresponding edge router by the optical line terminal of respective link;
This edge router carries out address learning and the migration of second line of a couplet mouth according to up Business Stream, makes descending service flow transfer on this second line of a couplet mouth, thus the pretection switch of finishing service stream.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010203701.7A CN101867411B (en) | 2010-06-17 | 2010-06-17 | Realize the method, system and device of passive optical network optical fiber protection |
| PCT/CN2010/077924 WO2011157021A1 (en) | 2010-06-17 | 2010-10-20 | Method, system and device for implementing passive optical network fiber protection |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010203701.7A CN101867411B (en) | 2010-06-17 | 2010-06-17 | Realize the method, system and device of passive optical network optical fiber protection |
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| Publication Number | Publication Date |
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| CN101867411A CN101867411A (en) | 2010-10-20 |
| CN101867411B true CN101867411B (en) | 2016-04-13 |
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| CN102611519B (en) * | 2010-11-25 | 2015-03-25 | 上海贝尔股份有限公司 | Method and device for link protection of passive optical network |
| CN102916746B (en) * | 2012-10-09 | 2016-03-30 | 青岛海信宽带多媒体技术有限公司 | EPON and optical module for optical network unit thereof |
| CN102983913B (en) * | 2012-12-18 | 2015-08-05 | 瑞斯康达科技发展股份有限公司 | A kind of optical network unit and optical-fiber network |
| CN103607794A (en) * | 2013-10-18 | 2014-02-26 | 烽火通信科技股份有限公司 | Home gateway apparatus integrated with HomeNodeB function |
| CN104901880B (en) * | 2014-03-06 | 2019-06-28 | 中国移动通信集团广东有限公司 | A kind of method and device of service operation |
| CN105208466B (en) * | 2014-06-04 | 2019-07-05 | 上海斐讯数据通信技术有限公司 | Cabinet-type multiport EPON system |
| CN105792027B (en) * | 2014-12-22 | 2019-11-29 | 南京中兴新软件有限责任公司 | Passive optical network, controller and the method for communication |
| CN106452565B (en) * | 2015-08-11 | 2019-04-12 | 北京智芯微电子科技有限公司 | A kind of the electric power acquisition device and its working method of the bis- MAC protections of double PON |
| CN107306231B (en) * | 2016-04-20 | 2021-06-08 | 中国移动通信集团广东有限公司 | Service scheduling method, device and system |
| CN107659420A (en) * | 2016-07-25 | 2018-02-02 | 中兴通讯股份有限公司 | EPON protects hand in hand system switching method and device |
| CN106712840B (en) * | 2016-10-25 | 2019-04-30 | 深圳市新格林耐特通信技术有限公司 | A kind of implementation method and device of PON protection system |
| CN108632175B (en) * | 2017-03-22 | 2022-03-01 | 中兴通讯股份有限公司 | Switching method and device for uplink port in multi-form network |
| CN108063987A (en) * | 2017-12-06 | 2018-05-22 | 国网山东电力公司日照供电公司 | A kind of EPON based on MPLS technology pulls hand system |
| CN112383347B (en) * | 2020-10-29 | 2022-06-14 | 广东电网有限责任公司韶关供电局 | Power transmission system based on transmission network and leased public network |
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| CN1921357A (en) * | 2006-09-21 | 2007-02-28 | 杭州华为三康技术有限公司 | Full optical fibre protecting device and method |
| CN101505191A (en) * | 2009-04-01 | 2009-08-12 | 北京讯风光通信技术开发有限责任公司 | Fault processing method and system for Ethernet passive optical network |
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