CN209881982U - Distributed OLT equipment - Google Patents
Distributed OLT equipment Download PDFInfo
- Publication number
- CN209881982U CN209881982U CN201920735033.9U CN201920735033U CN209881982U CN 209881982 U CN209881982 U CN 209881982U CN 201920735033 U CN201920735033 U CN 201920735033U CN 209881982 U CN209881982 U CN 209881982U
- Authority
- CN
- China
- Prior art keywords
- service
- rate
- low
- area
- service area
- 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
- Structure Of Telephone Exchanges (AREA)
Abstract
The utility model relates to a distributed OLT device, which comprises a back plate, a plurality of GPON service interface modules and a plurality of XGPON service processing modules, wherein the GPON service interface modules are arranged on the back plate in parallel to form a low-speed service area; the XGPON service processing modules are arranged on the backboard in parallel to form a high-speed service area; every two GPON service interface modules are bridged with the GPON service interface module through a low-speed backplane bus; bridging the low-speed service area and the high-speed service area through a low-speed backboard bus; and bridging every two XGPON service processing modules with each other through a high-speed backboard bus. The utility model discloses can improve the utilization ratio of bandwidth, increase low speed business interface density, simultaneously, when the business capacity increases, can carry out level and smooth upgrading.
Description
Technical Field
The utility model relates to an electron and information technology field, in particular to distributing type OLT equipment.
Background
The operator network access technology evolves technologies such as FTTN, FTTB, FTTC, FTTSA and The like from DSL To HFC, greatly improves The network access efficiency and The user bandwidth, effectively improves The network experience of users, particularly The latest FTTH (fiber To The Home) optical fiber access technology directly connects optical fibers To The Home (or The place required by The user), solves The information transmission problem of The last kilometer, has no limitation on The bandwidth, wavelength and transmission technology type, is suitable for introducing various new services, is The most ideal transparent service network, and is The best mode for The current access network development.
However, with the arrival of applications such as 4K video, VR and 5G, the operator network has an increasing demand for FTTH service bandwidth, a mainstream GPON network can hardly meet the demand for service applications slowly, a next-generation network needs to be upgraded to an XGPON network gradually and smoothly, during the network evolution process, GPON and XGPON service interfaces coexist, an OLT device needs to support GPON and XGPON service boards simultaneously, and conventional OLT devices such as a GPON (low-rate) service board, an XGPON (high-rate) service board, an uplink GE (low-rate) service module and a 10GE (high-rate) service module share a device slot resource.
At present, an OLT technical architecture mainly has a structural style as shown in fig. 1, and an OLT device mainly includes a backplane, a GPON service (GPON \ XGPON) module (i.e., a low-rate service module) disposed on the backplane, a main control switching module, an uplink ethernet (GE/10GE) service module (i.e., a high-rate service module), a fan module, and a power supply module, where the GPON service module is used to access a data service from an optical fiber to a user, and converges the service to the uplink ethernet (GE/10GE) service module to access an operator network through the main control switching module. The above-mentioned construction has at least the following disadvantages:
1) the low-rate service module occupies the slot position of the high-rate service module, the bandwidth utilization rate is low, and the number of service ports is small.
2) The services of the high-speed service module and the low-speed service module are exchanged in a centralized way through the master control exchange module, and the low-speed service module adopts a high-speed back plate bus for adapting the centralized exchange, so that the hardware cost is higher.
SUMMERY OF THE UTILITY MODEL
Therefore, there is a need for a distributed OLT apparatus to improve the utilization of bandwidth, increase the density of low-rate service interfaces, and at the same time, perform smooth upgrade when the service capacity increases.
In order to achieve the above purpose, the present invention adopts the following technical solutions.
The utility model provides a distributed OLT device, which comprises a back plate, a plurality of GPON service interface modules and a plurality of XGPON service processing modules, wherein the GPON service interface modules are arranged on the back plate in parallel to form a low-speed service area; the XGPON service processing modules are arranged on the backboard in parallel to form a high-speed service area; every two GPON service interface modules are bridged with the GPON service interface module through a low-speed backplane bus; bridging the low-speed service area and the high-speed service area through a low-speed backboard bus; and bridging every two XGPON service processing modules with each other through a high-speed backboard bus.
Preferably, the system also comprises a plurality of master control exchange modules, wherein the master control exchange modules form a service exchange area; the plurality of main control exchange modules are arranged on the back plate in parallel; and the service switching area and the high-speed service area are bridged through a high-speed backboard bus.
Preferably, the low-rate service area and the high-rate service area are in a vertical insertion layout, that is, the low-rate service area and the high-rate service area are in a one-to-one corresponding parallel relationship, and the service switching area is embedded in the high-rate service area and is bridged with the XGPON service processing modules through a high-rate backplane bus.
Preferably, the low-rate service area and the high-rate service area are in a cross-add configuration, that is, the low-rate service area and the high-rate service area are in a serial relationship of being stacked in sequence, the service switching area is disposed at an output end of the high-rate service area, so that the low-rate service area, the high-rate service area and the service switching area are arranged in sequence, and the plurality of main control switching modules and the plurality of XGPON service processing modules are bridged by a high-rate backplane bus.
Preferably, the GPON service interface modules are detachably connected to the backplane through slots respectively.
Preferably, the distributed OLT apparatus further includes a fan module for dissipating heat of each module and a power supply module for supplying power to each module, and the fan module and the power supply module are electrically connected to each module respectively.
Compared with the prior art, the utility model has the advantages of it is following:
1. the bandwidth utilization rate of the backboard can be effectively improved, and the interface density of a low-rate service area is increased;
2. whether the master control switching module is adopted is selected according to the required service capacity, so that the hardware cost of the product is effectively reduced when the service capacity is not large.
3. A distributed architecture is adopted, when the service capacity is not large, only a GPON service interface module and an XGPON service processing module are required to be configured for support, and a master control exchange module is not required; when the service capacity is increased, smooth upgrading can be realized by adding the main control switching module, and equipment does not need to be purchased again to be compatible with large service capacity.
4. With the increase of the service capacity, when the low-rate service interface is smoothly upgraded to the high-rate service interface, the whole low-rate service area is structurally supported to be physically removed, so that the occupied space of equipment is saved.
Drawings
Fig. 1 is a schematic structural diagram of an OLT architecture in the prior art;
fig. 2 is a schematic diagram of a vertical insertion layout structure of an OLT technical framework in an embodiment of the present invention;
fig. 3 is a schematic diagram of a horizontal insertion layout structure of the OLT technical architecture in an embodiment of the present invention.
Detailed Description
The following further description is made with reference to the drawings and specific embodiments.
The utility model provides a distributed OLT device, which comprises a back plate, a plurality of GPON service interface modules and a plurality of XGPON service processing modules, wherein the GPON service interface modules are arranged on the back plate in parallel to form a low-speed service area; the XGPON service processing modules are arranged on the backboard in parallel to form a high-speed service area; every two GPON service interface modules are bridged with the GPON service interface module through a low-speed backplane bus; bridging the low-speed service area and the high-speed service area through a low-speed backboard bus; and bridging every two XGPON service processing modules with each other through a high-speed backboard bus.
The GPON service interface module is a low-rate service access optical interface module with an uplink rate peak value of 1.25Gbps and a downlink rate peak value of 2.5Gbps, and is hereinafter referred to as a low-rate service module.
The XGPON service processing module is a high-speed service access optical interface module with a line speed peak value of 2.5Gbps and a downlink speed peak value of 10Gbps, and is hereinafter referred to as a high-speed service module.
As used herein, a high rate backplane bus refers to a backplane bus having a transmission rate greater than 10Gbps, and a low rate backplane bus refers to a backplane bus having a transmission rate less than 10 Gbps.
In addition, the low-rate backplane bus is used for bridging every two GPON service interface modules, and the low-rate backplane bus is used for bridging the low-rate service area and the high-rate service area, so that the cost is considered, and the communication bandwidths between the GPON service interface modules and the GPON service interface modules, and between the low-rate service area and the high-rate service area are based on the PON service interface modules, so that only the low-rate backplane bus with lower cost is needed, and if the high-rate backplane bus is used, performance excess is caused, and unnecessary cost is also increased.
Similarly, a high-rate backplane bus is used for bridging every two XGPON service processing modules and the XGPON service processing module, because the communication bandwidth between the XGPON service processing module and the XGPON service processing module is large, the high-rate backplane bus must be used for bridging, so that the performance of the product can be fully exerted, and hardware is not excessive.
When the required service capacity exceeds a preset value, a plurality of main control exchange modules can be arranged, and the plurality of main control exchange modules form a service exchange area; the plurality of main control exchange modules are arranged on the back plate in parallel; and the service switching area and the high-speed service area are bridged through a high-speed backboard bus.
Generally, the determination of the required traffic capacity is determined empirically, and the predetermined value is set according to the FTTH traffic bandwidth requirement of the user. When the service bandwidth is large enough, the required service capacity is considered to exceed the preset value, and at this time, the user side is considered to be a large-capacity service side.
For a high-capacity service end, the technical architecture of the corresponding OLT device may adopt a vertical insertion layout and a horizontal insertion layout.
Since the low-rate service module is used for accessing the data service from the optical fiber to the user, and the main control switching module is used for converging the data service to the high-rate service module, so as to access the operator network, the technical architecture shown in fig. 2 is adopted for the vertical insertion layout, and the technical architecture shown in fig. 3 is adopted for the horizontal insertion layout.
As shown in fig. 2, when a vertical insertion layout is adopted between the low-rate service area and the high-rate service area in this embodiment, the low-rate service area and the high-rate service area are in a one-to-one corresponding parallel relationship, and the service switching area is embedded in the high-rate service area and is bridged with the XGPON service processing modules through a high-rate backplane bus.
As shown in fig. 3, when a horizontal insertion layout is adopted between the low-rate service area and the high-rate service area in this embodiment, the low-rate service area and the high-rate service area are sequentially stacked in series, the service switching area is disposed at an output end of the high-rate service area, so that the low-rate service area, the high-rate service area and the service switching area are sequentially arranged, and the plurality of main control switching modules and the plurality of XGPON service processing modules are bridged by a high-rate backplane bus.
In order to facilitate smooth upgrade of the system, the GPON service interface modules are detachably connected to the backplane through slots respectively. When the service capacity is increased, the whole low-rate service area is structurally supported to be physically removed, and the high-rate service module is directly inserted, so that the low-rate service area is replaced by the high-rate service area, the smooth upgrade of a system is realized, and the space occupied by equipment in a machine room is saved.
In addition, the distributed OLT equipment further comprises a fan module for dissipating heat of each module and a power supply module for supplying power to each module, and the fan module and the power supply module are respectively and electrically connected with each module.
The OLT equipment can perform data processing by adopting the following method, and the method comprises the following steps:
s1: configuring a plurality of GPON service interface modules and a plurality of XGPON service processing modules according to the required service capacity;
s2: the GPON service interface modules are arranged on the backboard in parallel to form a low-rate service area;
s3: the XGPON service processing modules are arranged on the backboard in parallel to form a high-speed service area;
s4: bridging every two GPON service interface modules with the GPON service interface module through a low-speed backplane bus; bridging the low-speed service area and the high-speed service area through a low-speed backboard bus;
s5: and bridging every two XGPON service processing modules with each other through a high-speed backboard bus.
In step S4, bridging every two GPON service interface modules and GPON service interface modules through a low-rate backplane bus, and bridging the low-rate service area and the high-rate service area through a low-rate backplane bus are based on cost considerations, and since communication bandwidths between the GPON service interface modules and the GPON service interface modules, and between the low-rate service area and the high-rate service area are based on the PON service interface modules, only the low-rate backplane bus with lower cost needs to be used, and if the high-rate backplane bus is used, performance excess may be caused, and unnecessary cost is also increased.
Similarly, in step S5, a high-rate backplane bus is used for bridging every two XGPON service processing modules and the XGPON service processing module, because the communication bandwidth between the XGPON service processing module and the XGPON service processing module is large, the high-rate backplane bus needs to be used for bridging, so that the performance of the product can be fully exerted, and hardware is not excessive.
In addition, the distributed OLT data processing method of this embodiment further includes the following steps:
s6: judging whether the required service capacity exceeds a preset value;
s7: if the preset value is exceeded, configuring a plurality of main control switching modules to form a service switching area;
s8: according to the relative layout of the low-rate service area and the high-rate service area, the plurality of main control switching modules are arranged on the back plate in parallel;
s9: and bridging the service switching area and the high-speed service area through a high-speed backboard bus.
In step S8, the step of laying the plurality of master switching modules in parallel on the backplane according to the relative layout of the low-rate service area and the high-rate service area specifically includes:
s81: and if the low-rate service area and the high-rate service area are in a vertical insertion layout, namely the low-rate service area and the high-rate service area are in a one-to-one corresponding parallel connection relationship, embedding the service switching area into the high-rate service area, and bridging the XGPON service processing modules by using a high-rate backplane bus.
S82: if the low-rate service area and the high-rate service area are in a horizontal insertion layout, namely the low-rate service area and the high-rate service area are in a serial connection relationship of being stacked in sequence, the service switching area is arranged at the output end of the high-rate service area, so that the low-rate service area, the high-rate service area and the service switching area are arranged in sequence, and the plurality of main control switching modules and the plurality of XGPON service processing modules are bridged by utilizing a high-rate backboard bus.
To sum up, the utility model has the advantages of it is following:
1. the bandwidth utilization rate of the backboard can be effectively improved, and the interface density of a low-rate service area is increased;
2. whether the master control switching module is adopted is selected according to the required service capacity, so that the hardware cost of the product is effectively reduced when the service capacity is not large.
3. A distributed architecture is adopted, when the service capacity is not large, only a GPON service interface module and an XGPON service processing module are required to be configured for support, and a master control exchange module is not required; when the service capacity is increased, smooth upgrading can be realized by adding the main control switching module, and equipment does not need to be purchased again to be compatible with large service capacity.
4. With the increase of the service capacity, when the low-rate service interface is smoothly upgraded to the high-rate service interface, the whole low-rate service area is structurally supported to be physically removed, so that the occupied space of equipment is saved.
The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.
The above-mentioned embodiments only represent some embodiments of the present invention, and the description thereof is specific and detailed, but not to be construed as limiting the scope of the present invention. It should be noted that, for those skilled in the art, without departing from the spirit of the present invention, several variations and modifications can be made, which are within the scope of the present invention.
Claims (6)
1. A distributed OLT equipment, includes the backplate, its characterized in that: the system also comprises a plurality of GPON service interface modules and a plurality of XGPON service processing modules, wherein the GPON service interface modules are arranged on the backboard in parallel to form a low-rate service area; the XGPON service processing modules are arranged on the backboard in parallel to form a high-speed service area; every two GPON service interface modules are bridged with the GPON service interface module through a low-speed backplane bus; bridging the low-speed service area and the high-speed service area through a low-speed backboard bus; and bridging every two XGPON service processing modules with each other through a high-speed backboard bus.
2. The distributed OLT apparatus of claim 1, wherein: the system also comprises a plurality of main control exchange modules, wherein the main control exchange modules form a service exchange area; the plurality of main control exchange modules are arranged on the back plate in parallel; and the service switching area and the high-speed service area are bridged through a high-speed backboard bus.
3. The distributed OLT apparatus of claim 2, wherein: the low-rate service area and the high-rate service area are in vertical insertion layout, namely, the low-rate service area and the high-rate service area are in one-to-one correspondence parallel connection, and the service switching area is embedded in the high-rate service area and is in bridge connection with the XGPON service processing modules through a high-rate backplane bus.
4. The distributed OLT apparatus of claim 2, wherein: the low-rate service area and the high-rate service area are in a horizontal insertion layout, namely, the low-rate service area and the high-rate service area are in a serial connection relationship of being stacked in sequence, the service switching area is arranged at the output end of the high-rate service area, so that the low-rate service area, the high-rate service area and the service switching area are arranged in sequence, and the plurality of main control switching modules and the plurality of XGPON service processing modules are bridged through a high-rate backboard bus.
5. A distributed OLT device as claimed in any of claims 1 to 4, characterized in that: the GPON service interface modules are detachably connected to the backboard through slots respectively.
6. The distributed OLT apparatus of claim 5, wherein: the distributed OLT equipment further comprises a fan module for dissipating heat of each module and a power supply module for supplying power to each module, and the fan module and the power supply module are respectively and electrically connected with each module.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920735033.9U CN209881982U (en) | 2019-05-22 | 2019-05-22 | Distributed OLT equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920735033.9U CN209881982U (en) | 2019-05-22 | 2019-05-22 | Distributed OLT equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209881982U true CN209881982U (en) | 2019-12-31 |
Family
ID=68947378
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920735033.9U Active CN209881982U (en) | 2019-05-22 | 2019-05-22 | Distributed OLT equipment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209881982U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110049388A (en) * | 2019-05-22 | 2019-07-23 | 深圳市钮为通信技术有限公司 | Distributed OLT data processing method and distributed OLT device |
-
2019
- 2019-05-22 CN CN201920735033.9U patent/CN209881982U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110049388A (en) * | 2019-05-22 | 2019-07-23 | 深圳市钮为通信技术有限公司 | Distributed OLT data processing method and distributed OLT device |
| CN110049388B (en) * | 2019-05-22 | 2024-03-19 | 深圳市友华通信技术有限公司 | Distributed OLT data processing method and distributed OLT equipment |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US9225424B2 (en) | Dynamic bandwidth allocation method, OLT, and PON system | |
| EP2830261B1 (en) | Optical line terminal device and implementation method thereof | |
| CN100355239C (en) | Management information interactive system and special interface card and master control card in network equipment | |
| CN102149025A (en) | Interface matching method, device and system for PON (passive optical network) | |
| CN103875216A (en) | Access system communication method and device of optical fiber network | |
| CN110049388B (en) | Distributed OLT data processing method and distributed OLT equipment | |
| CN101483529B (en) | Modularized switch and operating method thereof | |
| CN102033581A (en) | High-expandability advanced telecom calculating architecture (ATCA) plate based on multi-core network processing unit | |
| CN102480650A (en) | Information transmitting method in passive optical network system and passive optical network system | |
| CN209881982U (en) | Distributed OLT equipment | |
| US20220052761A1 (en) | Apparatuses, methods, and computer programs for a remote unit and a central unit of an optical line terminal | |
| CN111869229A (en) | Modular network element architecture | |
| CN103973597A (en) | Managing method and system for resources in photoelectric hybrid system | |
| KR102673635B1 (en) | System and method for providing internet service over ftth | |
| CN217088087U (en) | Optical line terminal communication equipment | |
| EP2579520A1 (en) | Bandwidth allocation method and device for realizing bandwidth allocation | |
| CN110881149B (en) | Method for coexistence of multi-rate ONU, network device and storage medium | |
| CN113259781A (en) | Connection structure and device mounting method | |
| CN205754365U (en) | A kind of wavelength-division system | |
| CN214045654U (en) | High-capacity OTN signal crossing platform based on CLOS orthogonal architecture | |
| CN104168219A (en) | PON and EOC networking data message scheduling method and system and relevant equipment | |
| Ra et al. | Field Trial of Remotely Controlled Smart Factory based on PON Slicing and Disaggregated OLT | |
| KR20110129658A (en) | Optical line termination apparatus of gigabit-passive optical network system for wdm hybrid-pon | |
| CN111314923B (en) | Method and device for realizing dynamic bandwidth | |
| KR102052598B1 (en) | Ethernet passive optical network system and optical communication apparatus of passive optical network |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20210220 Address after: 518000 R & D building 2002, block a, building 7, Vanke Cloud City Phase I, Xingke 1st Street, Xili community, Xili street, Nanshan District, Shenzhen City, Guangdong Province Patentee after: SHENZHEN YOUHUA TECHNOLOGY Co.,Ltd. Address before: 518000 room 1203, entrepreneurship Park, Lishan road University Town, Taoyuan Street, Nanshan District, Shenzhen City, Guangdong Province Patentee before: SHENZHEN NIUWEI COMMUNICATION TECHNOLOGY Co.,Ltd. |