CN104734773B - GPON network C class optical link pretection switch optimization method - Google Patents
GPON network C class optical link pretection switch optimization method Download PDFInfo
- Publication number
- CN104734773B CN104734773B CN201510179928.5A CN201510179928A CN104734773B CN 104734773 B CN104734773 B CN 104734773B CN 201510179928 A CN201510179928 A CN 201510179928A CN 104734773 B CN104734773 B CN 104734773B
- Authority
- CN
- China
- Prior art keywords
- olt
- onu
- optical link
- sdn controller
- pon interface
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Landscapes
- Small-Scale Networks (AREA)
- Optical Communication System (AREA)
- Data Exchanges In Wide-Area Networks (AREA)
Abstract
A kind of GPON network C class optical link pretection switch optimization method, all OLT in C class optical link pretection switch GPON network are all connected to SDN controller, form the C class optical link pretection switch GPON network based on SDN framework, during establishing key light link between OLT and ONU, SDN controller carries out optical link establishment optimal control, so that the key light link in GPON network meets the requirement of optical link load balancing, after having occurred optical link pretection switch between OLT and ONU, SDN controller optimizes control to the optical link pretection switch in GPON network, so that the key light link in GPON network meets the requirement of optical link load balancing.The present invention is calculated automatically by SDN controller and completes optical link pretection switch, is simplified network operation work, not only can guarantee the reliability of optical-fiber network, but also can be on the primary PON interface and spare PON interface of ONU traffic balancing to OLT.
Description
Technical field
The present invention relates to a kind of GPON(gigabit passive optical network, gigabit passive optical network)
Network C class optical link pretection switch optimization method, more particularly to it is a kind of based on SDN(self-defending network, Self-Defending
Network GPON network C class optical link pretection switch optimization method).
Background technique
It, can be in PON(passive optical network, Passive Optical in order to improve the reliability and robustness of optical-fiber network
Network optical link wrap protection) is used in system.There are mainly four types of types for optical link protection.As shown in Figure 1, being C class
Optical link protection, has the following characteristics that
1, OLT(optical line terminal, Optical Line Terminal) double PON interfaces, primary, spare PON interface is equal
In running order (warm back-up).OLT should ensure that primary PON interface business information can backed up in synchronization to spare PON interface,
So that spare PON interface can maintain ONU(optical network unit, Optical Network Unit during pretection switch) industry
Business attribute is constant.
2,2 1:N optical splitters optical splitter: are used.
3, ONU uses a PON MAC and two optical modules, and spare optical module is in cold standby shape under normal circumstances
State.Two optical modules of ONU are connected respectively to the primary and backup PON interface of OLT.
4, ONU and OLT detects link state, and decides whether to switch according to link state.
Optical link interrupts in order to prevent, leads to ONU loss of traffic, traditional method is exactly to use optical link pretection switch machine
System.In GPON system, the trigger condition of optical link pretection switch includes:
1, input optical signal loses (LOS)；
2, input channel channel degradation:
2.1, input optical signal power is too high or too low；
2.2, the bit error rate is out-of-limit；
3, device hardware failure:
3.1, optical module failure；
3.2, PON MAC failure of chip (the case where suitable for being protected between different PON MAC chips)；
3.3, board faults (the case where being suitable for PON inter-board protection)；
For OLT and ONU equipment, when detecting above-mentioned physical layer failure, the translation and protection time should be continuously detected
Switching guard time(4 frame time), the official confirmation optical link failure event, such as exists if the failure always exists
The failure is restored in switching guard time, then does not confirm the optical link failure event.
When OLT detects that light chain occurs for the uplink optical link of any one ONU being active under specific PON interface
When the pretection switch trigger event of road, OLT should stop sending downlink optical signal to the ONU immediately, and the flow of the ONU is switched
(the optical link of failure is switched one by one) on to spare PON interface, and is sent by spare PON interface to ONU
POPUP message.ONU should switch the business to spare PON interface immediately, go forward side by side after detecting above-mentioned optical link failure event
Entering POPUP state, ONU restarts ranging after receiving the POPUP message that OLT is sent, until entering run mode,
ONU business starts to restore.
In the case where certain is extreme, ONU business may be concentrated on all above-mentioned traditional optical link wrap protection
OLT is primary or spare PON interface on.Original network is not based on SDN framework, but distributed AC servo system, it is difficult to perceive light
The variation of link, once optical link changes, network administrator needs Forced Switch.If administrator's Forced Switch, it is necessary to
It is required that the link state of entire optical-fiber network is well understood in network administrator.The network fairly large for one, this work
Obviously not enough easily, and it is very easy to error.
Summary of the invention
The present invention provides a kind of GPON network C class optical link pretection switch optimization method, is based on SDN framework, is controlled by SDN
Device calculates automatically completes optical link pretection switch, simplifies network operation work, not only can guarantee the reliability of optical-fiber network, but also can handle
On ONU traffic balancing to the primary PON interface and spare PON interface of OLT.
In order to achieve the above object, the present invention provides a kind of GPON network C class optical link pretection switch optimization method, includes
Following steps:
The C class optical link pretection switch GPON network based on SDN framework is established, by C class optical link pretection switch GPON net
All OLT in network are all connected to SDN controller, form the C class optical link pretection switch GPON network based on SDN framework；
During establishing key light link between OLT and ONU, SDN controller carries out optical link establishment optimal control, makes
It obtains the key light link in GPON network and meets the requirement of optical link load balancing；
After optical link pretection switch has occurred between OLT and ONU, SDN controller is to the optical link in GPON network
Pretection switch optimizes control, so that the key light link in GPON network meets the requirement of optical link load balancing；
The optical link load balancing requires: so that establishing on the primary PON interface of OLT in GPON network
The quantity M of key light link is equal to the quantity N for the key light link established on the spare PON interface of OLT, or to establish
The quantity M of key light link on the primary PON interface of OLT and the quantity for establishing the key light link on the spare PON interface of OLT
Difference between N is less than or equal to 1.
When establishing key light link between OLT and ONU, OLT controls key light link establishment information reporting to SDN
Device, the key light link establishment information includes: establishing the id of PON the interface id and ONU of the OLT of key light link.
SDN controller carries out optical link establishment optimal control and comprises the steps of:
If SDN controller has received key light link establishment information, SDN controller counts OLT in GPON network respectively
The key light number of links M of the upper primary PON interface and key light number of links N of spare PON interface, if M > N, SDN controller control
Key light link establishment between OLT and ONU processed on the spare PON interface of OLT, if M≤N, SDN controller control OLT and
Key light link establishment between ONU is on the primary PON interface of OLT.
After optical link pretection switch has occurred between OLT and ONU, OLT needs will be in optical link pretection switch information
Offer SDN controller, the optical link pretection switch information includes: the id of PON interface id, ONU of the OLT before switching, with
And the id of PON the interface id and ONU of the OLT after switching.
SDN controller optimizes control to the optical link pretection switch in GPON network and comprises the steps of:
If step S3.1, SDN controller has received optical link pretection switch information, step S3.2 is carried out；
Step S3.2, SDN controller calculates the optical link load in GPON network, that is, counts OLT in GPON network respectively
The key light number of links M of the upper primary PON interface and key light number of links N of spare PON interface；
Step S3.3, SDN controller judges M and N's and whether be even number, if so, step S3.6 is carried out, if it is not, carrying out
Step S3.4；
Step S3.4, SDN controller judges whether the difference between M and N is less than or equal to 1, if so, terminate optimization, if
It is no, carry out step S3.5；
Step S3.5, number biggish in M and N is subtracted one by SDN controller, carries out step S3.6；
Step S3.6, SDN controller judges whether M is greater than N, if so, step S3.7 is carried out, if it is not, carrying out step S3.9；
Step S3.7, other than the OLT that optical link is switched has occurred in step S3.1, SDN controller random selection one
A OLT carries out pressure switching to the key light link on its primary PON interface, will be switched on spare PON interface, carries out step
S3.8；
Step S3.8, SDN controller judges whether M is greater than N, if so, step S3.7 is carried out, if it is not, then terminating to optimize；
Step S3.9, SDN controller judges whether M is equal to N, if so, terminating optimization, if it is not, carrying out step S3.10；
Step S3.10, other than the OLT that optical link is switched has occurred in step S3.1, SDN controller random selection one
A OLT carries out pressure switching to the key light link on its spare PON interface, is switched on primary PON interface, carries out step
S3.11；
Step S3.11, SDN controller judges whether N is greater than M, if so, step S3.10 is carried out, if it is not, then terminating to optimize.
In the step S3.2, SDN controller is believed according to the OLT optical link pretection switch information reported and network topology
The key light number of links M of the primary PON interface and key light number of links N of spare PON interface on OLT in breath calculating GPON network.
In the step S3.7 and step S3.10, SDN controller carries out key light link switching is forced to include following step
It is rapid:
SDN controller sends privately owned Experimenter message to selected OLT, and OLT is notified to carry out pressure optical link
Pretection switch；
Chosen OLT receives privately owned Experimenter message, obtains ONU id information, source PON interface id letter
Breath and purpose PON interface id information；
OLT carries out the side OLT and switches；
Privately owned Experimenter message is converted to privately owned OMCI message and is sent to by purpose PON interface by OLT
ONU, notice ONU carry out the side ONU and switch；
ONU carries out the side ONU and switches.
The OLT carries out the side OLT and switches: OLT stops sending downlink optical signal to the ONU immediately, and by the ONU
Flow on from source PON interface inverting to purpose PON interface, and POPUP message is sent to ONU by purpose PON interface.
The ONU progress side ONU, which is switched, includes: after ONU receives privately owned OMCI message, switching the business to immediately
Purpose PON interface, and enter POPUP state, ONU restarts ranging after receiving the POPUP message that OLT is sent,
Until entering run mode, ONU business starts to restore.
The privately owned Experimenter message format includes:
Version；
Type；
Length；
Affairs ID；
Message value；
Type of message；
Source PON interface id information；
Purpose PON interface id information；
ONU id information；
Reserved field；
Wherein, message value, type of message, source PON interface id information, purpose PON interface id information and ONU id information are
Privately owned extended field.
The present invention is based on SDN frameworks, are calculated automatically by SDN controller and complete optical link pretection switch, simplify network dimension
Nurse makees, and not only can guarantee the reliability of optical-fiber network, but also the primary PON interface of ONU traffic balancing to OLT and spare PON can be connect
On mouth.
Detailed description of the invention
Fig. 1 is the GPON schematic network structure that C class optical link is protected in background technique.
Fig. 2 is a kind of flow chart of GPON network C class optical link pretection switch optimization method provided by the invention.
Fig. 3 is the flow chart that SDN controller carries out optical link establishment optimal control.
Fig. 4 is the flow chart that SDN controller optimizes control to the optical link pretection switch in GPON network.
Fig. 5 is the flow chart that SDN controller force to key light link switching.
Fig. 6 is the format of privately owned Experimenter message.
Specific embodiment
Below according to Fig. 2~Fig. 6, presently preferred embodiments of the present invention is illustrated.
As shown in Fig. 2, the present invention provides a kind of GPON network C class optical link pretection switch optimization method, it include following step
It is rapid:
Step S1, the C class optical link pretection switch GPON network based on SDN framework is established.
All OLT in C class optical link pretection switch GPON network are all connected to SDN controller, composition is based on SDN frame
The C class optical link pretection switch GPON network of structure.
Step S2, during establishing key light link between OLT and ONU, SDN controller carries out optical link establishment optimization
Control is established so that the quantity M for the key light link established on the primary PON interface of OLT in GPON network is equal in the standby of OLT
With the quantity N of the key light link on PON interface, or make the quantity for the key light link established on the primary PON interface of OLT
M and the difference established between the quantity N of the key light link on the spare PON interface of OLT are less than or equal to 1.
Step S3, after optical link pretection switch has occurred between OLT and ONU, SDN controller is in GPON network
Optical link pretection switch optimizes control, so that establishing the key light link on the primary PON interface of OLT in GPON network
Quantity M is equal to the quantity N for the key light link established on the spare PON interface of OLT, or to establish the primary PON in OLT
Difference of the quantity M and foundation of key light link on interface between the quantity N of the key light link on the spare PON interface of OLT
Less than or equal to 1.
In the step S2, when establishing key light link between OLT and ONU, OLT is needed key light link establishment
Information reporting gives SDN controller.
The key light link establishment information includes: establishing the id of PON the interface id and ONU of the OLT of key light link.
As shown in figure 3, the step S2 is comprised the steps of:
If step S2.1, SDN controller has received key light link establishment information, step S2.2 is carried out.
Step S2.2, SDN controller calculates the optical link load in GPON network, that is, counts OLT in GPON network respectively
The key light number of links M of the upper primary PON interface and key light number of links N of spare PON interface.
Step S2.3, SDN controller judges the size of M and N, if M > N, carries out step S2.4, if M≤N, is walked
Rapid S2.5.
Step S2.4, the key light link establishment between SDN controller control OLT and ONU is on the spare PON interface of OLT.
Step S2.5, the key light link establishment between SDN controller control OLT and ONU is on the primary PON interface of OLT.
In the step S3, after optical link pretection switch has occurred between OLT and ONU, OLT is needed light chain
Road pretection switch information reporting gives SDN controller.
The optical link pretection switch information includes: the id of PON interface id, ONU of the OLT before switching and switching
The id of PON the interface id and ONU of OLT afterwards.
The step S3 is comprised the steps of:
If step S3.1, SDN controller has received optical link pretection switch information, step S3.2 is carried out.
Step S3.2, SDN controller calculates the optical link load in GPON network, that is, counts OLT in GPON network respectively
The key light number of links M of the upper primary PON interface and key light number of links N of spare PON interface.
Step S3.3, SDN controller judges M and N's and whether be even number, if so, step S3.6 is carried out, if it is not, carrying out
Step S3.4.
Step S3.4, SDN controller judges whether the difference between M and N is less than or equal to 1, if so, terminate optimization, if
It is no, carry out step S3.5.
Step S3.5, number biggish in M and N is subtracted one (then the sum of M and N becomes even number) by SDN controller, carries out step
S3.6。
Step S3.6, SDN controller judges whether M is greater than N, if so, step S3.7 is carried out, if it is not, carrying out step S3.9.
Step S3.7, other than the OLT that optical link is switched has occurred in step S3.1, SDN controller random selection one
A OLT carries out pressure switching to the key light link on its primary PON interface, will be switched on spare PON interface, carries out step
S3.8。
Step S3.8, SDN controller judges whether M is greater than N, if so, step S3.7 is carried out, if it is not, then terminating to optimize.
Step S3.9, SDN controller judges whether M is equal to N, if so, terminating optimization, if it is not, carrying out step S3.10.
Step S3.10, other than the OLT that optical link is switched has occurred in step S3.1, SDN controller random selection one
A OLT carries out pressure switching to the key light link on its spare PON interface, is switched on primary PON interface, carries out step
S3.11。
Step S3.11, SDN controller judges whether N is greater than M, if so, step S3.10 is carried out, if it is not, then terminating to optimize.
In the step S3.2, SDN controller is believed according to the OLT optical link pretection switch information reported and network topology
Breath (network topological information include interchanger link connection structure and information exchange rates, the network topological information according to
LLDP message calculate obtain) calculate optical link load, that is, in GPON network on OLT primary PON interface key light number of links M
With the key light number of links N of spare PON interface.
As shown in figure 5, SDN controller carries out pressure switching to key light link in the step S3.7 and step S3.10
It comprises the steps of:
Step S4.1, SDN controller sends privately owned Experimenter message to selected OLT, and it is strong to notify that OLT is carried out
Optical link pretection switch processed.
Step S4.2, chosen OLT receives privately owned Experimenter message, obtains ONU id information, source PON
Interface id information and purpose PON interface id information.
Step S4.3, the OLT progress side OLT is switched.
OLT stops sending downlink optical signal to the ONU immediately, and by the flow of the ONU from source PON interface inverting to purpose
On PON interface, and POPUP message is sent to ONU by purpose PON interface.
Step S4.4, privately owned Experimenter message is converted to privately owned OMCI message by OLT, and passes through purpose
PON interface is sent to ONU, and notice ONU carries out the side ONU and switches.
Step S4.5, the ONU progress side ONU is switched.
After ONU receives privately owned OMCI message, purpose PON interface is switched the business to immediately, and enter POPUP shape
State, ONU restart ranging after receiving the POPUP message that OLT is sent, and until entering run mode, ONU business is opened
Begin to restore.
As shown in fig. 6, the privately owned Experimenter message format includes:
Version (Version)；
Type (Type)；
Length (Length)；
Affairs ID(Transaction id)；
Message value (Experimenter): Experimenter value is the customized Experimenter message id of 255()
Need to ONF(Open Networking Foundation, the tissue of early start SDN standardization and popularization) tissue Shen
Please；
Type of message (Experimenter type): Experimenter type value is shown to be for 2 from the controller side SDN
To arrive OLT；
Source PON interface id information (source PON id): refer to that key light link is attached to when not carrying out optical link pretection switch
The source PON id of OLT；
Purpose PON interface id information (purpose PON id): referring to after carrying out optical link pretection switch, and key light link is to connect
It is connected to the purpose PON id of OLT；
ONU id information (ONU id): refer to the ONU for needing to carry out optical link pretection switch；
Reserved field (Reserved): not having to temporarily, prepares for expansion later.
Wherein, message value (Experimenter), type of message (Experimenter type), source PON interface id information
(source PON id), purpose PON interface id information (purpose PON id) and ONU id information (ONU id) are privately owned extended field, version
This (Version), type (Type), length (Length), affairs ID(Transaction id) and reserved field
It (Reserved) is original definition field.
The management entity OPTICAL-LS-C of the privately owned OMCI message includes with properties:
Management entity id, work OPTICAL-LS-C pointer, protection OPTICAL-LS-C pointer and protection act.
The management entity OPTICAL-LS-C of the privately owned OMCI message is defined as follows shown in table:
Wherein, " ME " indicates that management entity, " R " indicate read-only, and " pressure " expression there must be, and " R, W " expression are readable can
Write, ONT(ONT Optical Network Terminal, Optical Network Termination) be the protection of C class optical link management object, at the beginning of ONT
After beginningization is completed, the example for establishing this object respectively, an expression working side, another indicates protection side.
Present invention employs SDN framework, whether the trigger condition that SDN controller can perceive optical link pretection switch is closed
Suitable, then centralized and unified calculating, equally loaded notifies OLT and ONU finally by the mode for issuing Experimenter message
It carries out forcing optical link pretection switch, since optical link pretection switch calculates completion, whole network by SDN controller automatically
Management and configuration is very simple and intelligence.
It is discussed in detail although the contents of the present invention have passed through above preferred embodiment, but it should be appreciated that above-mentioned
Description is not considered as limitation of the present invention.After those skilled in the art have read above content, for of the invention
A variety of modifications and substitutions all will be apparent.Therefore, protection scope of the present invention should be limited to the appended claims.
Claims (8)
1. a kind of GPON network C class optical link pretection switch optimization method, which is characterized in that comprise the steps of:
The C class optical link pretection switch GPON network based on SDN framework is established, it will be in C class optical link pretection switch GPON network
All OLT be all connected to SDN controller, form the C class optical link pretection switch GPON network based on SDN framework；
During establishing key light link between OLT and ONU, SDN controller carries out optical link establishment optimal control, so that
Key light link in GPON network meets the requirement of optical link load balancing；
After optical link pretection switch has occurred between OLT and ONU, SDN controller protects the optical link in GPON network
It switches and optimizes control, so that the key light link in GPON network meets the requirement of optical link load balancing；
The optical link load balancing requires: so that establishing the key light on the primary PON interface of OLT in GPON network
The quantity M of link is equal to the quantity N for the key light link established on the spare PON interface of OLT, or to establish OLT's
The quantity M of key light link on primary PON interface and foundation are between the quantity N of the key light link on the spare PON interface of OLT
Difference be less than or equal to 1；
After optical link pretection switch has occurred between OLT and ONU, OLT need by optical link pretection switch information reporting to
SDN controller, the optical link pretection switch information includes: the id of PON interface id, ONU of the OLT before switching and fall
The id of PON the interface id and ONU of OLT after changing；
SDN controller optimizes control to the optical link pretection switch in GPON network and comprises the steps of:
If step S3.1, SDN controller has received optical link pretection switch information, step S3.2 is carried out；
Step S3.2, SDN controller calculates the optical link load in GPON network, that is, counts main on OLT in GPON network respectively
With the key light number of links M of the PON interface and key light number of links N of spare PON interface；
Step S3.3, SDN controller judges M and N's and whether be even number, if so, step S3.6 is carried out, if it is not, carrying out step
S3.4；
Step S3.4, SDN controller judges whether the difference between M and N is less than or equal to 1, if so, terminate optimization, if it is not, into
Row step S3.5；
Step S3.5, number biggish in M and N is subtracted one by SDN controller, carries out step S3.6；
Step S3.6, SDN controller judges whether M is greater than N, if so, step S3.7 is carried out, if it is not, carrying out step S3.9；
Step S3.7, other than the OLT that optical link is switched has occurred in step S3.1, SDN controller randomly chooses one
OLT carries out pressure switching to the key light link on its primary PON interface, will be switched on spare PON interface, carries out step
S3.8；
Step S3.8, SDN controller judges whether M is greater than N, if so, step S3.7 is carried out, if it is not, then terminating to optimize；
Step S3.9, SDN controller judges whether M is equal to N, if so, terminating optimization, if it is not, carrying out step S3.10；
Step S3.10, other than the OLT that optical link is switched has occurred in step S3.1, SDN controller randomly chooses one
OLT carries out pressure switching to the key light link on its spare PON interface, is switched on primary PON interface, carries out step
S3.11；
Step S3.11, SDN controller judges whether N is greater than M, if so, step S3.10 is carried out, if it is not, then terminating to optimize.
2. GPON network C class optical link pretection switch optimization method as described in claim 1, which is characterized in that work as OLT
When establishing key light link between ONU, OLT gives key light link establishment information reporting to SDN controller, the master
Optical link establishment information includes: establishing the id of PON the interface id and ONU of the OLT of key light link.
3. GPON network C class optical link pretection switch optimization method as claimed in claim 2, which is characterized in that SDN controller
Optical link establishment optimal control is carried out to comprise the steps of:
If SDN controller has received key light link establishment information, SDN controller counts main on OLT in GPON network respectively
With the key light number of links M of the PON interface and key light number of links N of spare PON interface, if M > N, SDN controller control OLT
Key light link establishment between ONU on the spare PON interface of OLT, if M≤N, SDN controller control OLT and ONU it
Between key light link establishment on the primary PON interface of OLT.
4. GPON network C class optical link pretection switch optimization method as described in claim 1, which is characterized in that the step
In rapid S3.2, SDN controller calculates in GPON network according to the OLT optical link pretection switch information reported and network topological information
The key light number of links M of the upper primary PON interface of the OLT and key light number of links N of spare PON interface.
5. GPON network C class optical link pretection switch optimization method as described in claim 1, which is characterized in that the step
In rapid S3.7 and step S3.10, SDN controller carries out key light link switching is forced to comprise the steps of:
SDN controller sends privately owned Experimenter message to selected OLT, and OLT is notified to carry out forcing optical link protection
It switches；
Chosen OLT receives privately owned Experimenter message, obtain ONU id information, source PON interface id information and
Purpose PON interface id information；
OLT carries out the side OLT and switches；
Privately owned Experimenter message is converted to privately owned OMCI message and is sent to ONU by purpose PON interface by OLT,
Notice ONU carries out the side ONU and switches；
ONU carries out the side ONU and switches.
6. GPON network C class optical link pretection switch optimization method as claimed in claim 5, which is characterized in that the OLT
Carry out the side OLT to switch and includes: OLT stops sending downlink optical signal to the ONU immediately, and by the flow of the ONU from source PON interface
It is switched on purpose PON interface, and POPUP message is sent to ONU by purpose PON interface.
7. GPON network C class optical link pretection switch optimization method as claimed in claim 5, which is characterized in that the ONU
The progress side ONU, which is switched, includes: after ONU receives privately owned OMCI message, switching the business to purpose PON interface immediately, goes forward side by side
Entering POPUP state, ONU restarts ranging after receiving the POPUP message that OLT is sent, until entering run mode,
ONU business starts to restore.
8. GPON network C class optical link pretection switch optimization method as claimed in claim 5, which is characterized in that the private
Some Experimenter message formats include:
Version；
Type；
Length；
Affairs ID；
Message value；
Type of message；
Source PON interface id information；
Purpose PON interface id information；
ONU id information；
Reserved field；
Wherein, message value, type of message, source PON interface id information, purpose PON interface id information and ONU id information are privately owned
Extended field.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510179928.5A CN104734773B (en) | 2015-04-16 | 2015-04-16 | GPON network C class optical link pretection switch optimization method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510179928.5A CN104734773B (en) | 2015-04-16 | 2015-04-16 | GPON network C class optical link pretection switch optimization method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104734773A CN104734773A (en) | 2015-06-24 |
| CN104734773B true CN104734773B (en) | 2019-10-01 |
Family
ID=53458256
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510179928.5A Active CN104734773B (en) | 2015-04-16 | 2015-04-16 | GPON network C class optical link pretection switch optimization method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104734773B (en) |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105391644B (en) * | 2015-12-01 | 2019-06-07 | 上海斐讯数据通信技术有限公司 | SiteServer LBS and method based on optical-fiber network |
| CN107347033A (en) * | 2016-05-05 | 2017-11-14 | 中兴通讯股份有限公司 | The method and device of quick protective switch is realized in a kind of SDN frameworks |
| CN106921430A (en) * | 2017-02-24 | 2017-07-04 | 烽火通信科技股份有限公司 | The realization method and system of TYPE C optical link protection systems in EPON |
| 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 |
| US10841670B2 (en) | 2018-02-13 | 2020-11-17 | Juniper Networks, Inc. | Methods and apparatus for consistency check in disaggregated dense wavelength-division multiplexing (DWDM) systems |
| CN109412844B (en) * | 2018-10-11 | 2022-02-25 | 深圳创维数字技术有限公司 | Method, device, equipment and storage medium for realizing management entity |
| CN114609961A (en) * | 2022-02-14 | 2022-06-10 | 哪吒港航智慧科技(上海)有限公司 | Ultra-remote control system for port loading and unloading equipment |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103701519A (en) * | 2013-12-18 | 2014-04-02 | 烽火通信科技股份有限公司 | Active/standby judging method for passive optical network |
| CN103929236A (en) * | 2014-04-17 | 2014-07-16 | 上海斐讯数据通信技术有限公司 | Method and system for achieving service layer with protection switching function of passive optical network port |
| CN104158758A (en) * | 2014-08-26 | 2014-11-19 | 上海斐讯数据通信技术有限公司 | Load balancing processing method and system based on user message time feedback in SDN network |
| CN104468236A (en) * | 2014-12-19 | 2015-03-25 | 上海斐讯数据通信技术有限公司 | SDN controller cluster, SDN switch and SDN switch connecting control method |
-
2015
- 2015-04-16 CN CN201510179928.5A patent/CN104734773B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103701519A (en) * | 2013-12-18 | 2014-04-02 | 烽火通信科技股份有限公司 | Active/standby judging method for passive optical network |
| CN103929236A (en) * | 2014-04-17 | 2014-07-16 | 上海斐讯数据通信技术有限公司 | Method and system for achieving service layer with protection switching function of passive optical network port |
| CN104158758A (en) * | 2014-08-26 | 2014-11-19 | 上海斐讯数据通信技术有限公司 | Load balancing processing method and system based on user message time feedback in SDN network |
| CN104468236A (en) * | 2014-12-19 | 2015-03-25 | 上海斐讯数据通信技术有限公司 | SDN controller cluster, SDN switch and SDN switch connecting control method |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104734773A (en) | 2015-06-24 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104734773B (en) | GPON network C class optical link pretection switch optimization method | |
| US10129617B2 (en) | Link switching method, device, and system | |
| CN102917286A (en) | Hand-in-hand protection switching method and system in EPON (Ethernet Passive Optical Network) | |
| CN100438505C (en) | Passive optic network user terminal and its power control and state reporting method | |
| EP2605427B1 (en) | Method, system and optical network unit for synchronizing data | |
| CN101540638B (en) | inter-board protection switching method of TDM service channel in EPON system | |
| US20150358076A1 (en) | Port-dualized optical line terminal and passive optical network system capable of measuring rssi of standby line in standby port, and method of determining stability of standby line using the same | |
| CN102035597B (en) | Method, device and system for switching between main terminal and standby terminal of passive optical network (PON) | |
| CN102386970A (en) | Optical network unit (ONU) device of EPON (Ethernet Passive Optical Network) system and protection switching method for same | |
| US8654785B2 (en) | Transmission control system, subscriber-side communication device, and office-side communication device | |
| CN102064885A (en) | Method and device for rapid protection switching of passive optical network (PON) ports in any slot position in 10 Gbit/s Ethernet PON (10G-EPON) system | |
| CN101262282B (en) | A method and device for improving reliability of passive optical network | |
| US9209925B2 (en) | Passive optical networking redundancy via two or more auto sensing optical line terminals | |
| CN103281117B (en) | ONU detects also method and the device of adaptive EPON, GPON automatically | |
| CN101667862A (en) | Optical network system, optical network equipment and exchanging method thereof | |
| CN106464356A (en) | Method, device and system for detecting rogue optical network unit | |
| WO2012155671A1 (en) | Optical port switchover method and system of optical network unit | |
| CN108092709A (en) | Pretection switch method and optical line terminal, optical network apparatus in passive optical network | |
| CN103139669A (en) | Method and system for sending data | |
| CN106452565A (en) | Double-PON double-MAC protection power collection device and working method thereof | |
| US10154322B2 (en) | Fast recovery of fibre channel (FC) link using delayed NOS message after FC link failure | |
| CN204761436U (en) | Electric power collection system of two MAC protections of two PON | |
| CN102611570A (en) | Method for realizing port-level protection of packet transport network (PTN) by use of Y-shaped cable | |
| CN104601216A (en) | Communication device protection device | |
| CN102316392A (en) | Method for realizing optical network unit (ONU) redundancy protection in fiber to the home (FTTH) network, apparatus and system thereof |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20201110 Address after: Room 10242, No. 260, Jiangshu Road, Xixing street, Binjiang District, Hangzhou City, Zhejiang Province Patentee after: Hangzhou Jiji Intellectual Property Operation Co., Ltd Address before: 201620 Shanghai city Songjiang District Sixian Road No. 3666 Patentee before: Phicomm (Shanghai) Co.,Ltd. |
|
| TR01 | Transfer of patent right |