Integrated switching processing system without LAN (Local Area Network) port

Abstract

The embodiment of the invention relates to the field of optical communication, and discloses an integrated switching processing system without an LAN (Local Area Network) port. The optical protector single board is connected with the network equipment and is used for optical power detection and switching protection; the backboard is connected with the optical protector single board through a physical interface; the logic control unit is connected with the backboard, and the optical protector single board is connected with the logic control unit through a network interface through the backboard; and controlling the operation state of the optical protector single board. According to the technical scheme, the optical protector and the protected equipment are integrated together and connected through the backboard, risks caused by exchange and safety risks caused by opening an API are removed, and the technical problem of integrated management of the optical protector can be at least solved.

Description

Technical Field

[0001] This application relates to the field of optical communication, and particularly to an integrated switching and processing system without a LAN port. Background Art

[0002] Currently, in common optical protection systems on the market, optical protectors are usually in a separated state from the network devices to be protected. This means that during the actual network construction and deployment process, a large number of external optical fibers are required to connect the optical protector and the network device. Moreover, additional network connections are needed to ensure data interaction and communication between devices. At the same time, there may be differences in interface standards, communication protocols, etc. between optical protectors and network devices produced by different manufacturers, which brings compatibility problems. In practical applications, in order to ensure the normal operation of the system, a large amount of adaptation and debugging work is often required, which not only increases the construction cost of the system but also may affect the stability and reliability of the system.

[0003] The main functions of traditional optical protectors are concentrated on optical power detection and simple switching protection. They only judge whether a link fails based on the change of optical power and perform a switching operation when abnormal optical power is detected. However, in an actual optical communication network, the causes of link failures are diverse, and the change of optical power is only one of them. For example, an increase in bit error rate, abnormal fluctuations in traffic, etc. may all lead to a decline in communication quality or even link interruption. Existing optical protectors lack the ability to comprehensively monitor and judge these multi-dimensional parameters, and thus cannot discover potential fault hazards in a timely and accurate manner, and cannot effectively ensure the stable operation of the communication link. Summary of the Invention

[0004] An object of this application is to provide an integrated switching and processing system without a LAN port, which is at least used to solve the technical problem of integrated management of optical protectors.

[0005] To achieve the above object, some embodiments of this application provide an integrated switching and processing system without a LAN port, including: an optical protector single board, which is connected to a network device and is used for optical power detection and switching protection; a backplane, which is connected to the optical protector single board through a physical interface; a logic control unit, which is connected to the backplane and connects the optical protector single board and the logic control unit through a network interface via the backplane; and controls the operating state of the optical protector single board.

[0006] Compared with the related art, in the solution provided by the embodiments of the present application, the optical protector and the protected device processing are integrated together and connected through the backplane, removing the risks brought by switching and the security risks brought by the open API, and the optical protector can be centrally managed, which can reduce the implementation difficulty and reduce the failure points, improve the stability, reduce the occurrence of failures, quickly respond and adjust the status of the optical protector in a timely manner, and form an effective protection solution. BRIEF DESCRIPTION OF THE DRAWINGS

[0007] One or more embodiments are exemplarily illustrated by the pictures in the corresponding drawings. These exemplary illustrations do not limit the embodiments. Elements with the same reference numerals in the drawings represent similar elements. Unless otherwise stated, the drawings in the figures do not constitute a proportional limitation.

[0008] Figure 1 FIG. is a schematic structural diagram of an integrated switching processing system without a LAN port provided according to an embodiment of the present application;

[0009] Figure 2 FIG. is a schematic connection diagram of a switching processing system provided according to an embodiment of the present application;

[0010] Figure 3 FIG. is a schematic connection diagram of another switching processing system provided according to an embodiment of the present application;

[0011] Figure 4 FIG. is a schematic diagram of a bypass state provided according to an embodiment of the present application;

[0012] Figure 5 FIG. is a schematic diagram of a series state provided according to an embodiment of the present application. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0013] To make the objectives, technical solutions, and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are some, but not all, of the embodiments of the present application. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present application without creative efforts shall fall within the protection scope of the present application.

[0014] The embodiments of the present application relate to an integrated switching processing system without a LAN port. As Figure 1 shown, the system includes:

[0015] An optical protector single board, which is connected to a network device and is used for optical power detection and switching protection;

[0016] A backplane, which is connected to the optical protector single board through a physical interface;

[0017] A logic control unit, the logic control unit is connected to the backplane, and the optical protector board is connected to the logic control unit through the backplane via a network interface; and the operation state of the optical protector board is controlled.

[0018] The integrated switching processing system adopts a fully pluggable design. Functional modules such as the optical protector board can be plugged in and out independently. This design improves the convenience of maintenance and expansion capabilities. The board can be directly replaced in case of failure. When expanding capacity, new boards can be inserted to adapt to different network scale requirements. A single optical protector board supports 4 link protections. Combined with a single unit with 8 service slots, 8 optical protector boards can be inserted to meet the efficient needs of link protection in high-density network scenarios.

[0019] In terms of data interaction and connection mechanism, the backplane acts as a core hub. The optical protector board is connected to the backplane through a physical interface, and the backplane then builds a hardware architecture with the logic control unit (integrated switching processing module) to ensure stable connection between the optical protector board, backplane, and logic control unit; all traffic depends on the backplane switching processing module, and the optical protector board and the switching processing module are interconnected through the backplane to achieve efficient exchange of optical protection data (such as optical power, link status) and business traffic, avoiding external interaction risks. The optical protector board is connected to external network equipment through a solid fiber optic interface for transmitting actual business optical signals; it is connected to the logic control unit through a dotted line through the backplane network interface to achieve interaction of control instructions and status data, and support real-time monitoring and instruction issuance of the logic control unit.

[0020] Furthermore, if Figure 2 As shown, the optical protector board includes: the NE1 / NE2 ports of the optical protector board are respectively connected to the first network device and the second network device with optical fibers; the B1 / B2 ports of the optical protector board are respectively connected to the logic control unit through the backplane; the N1 / N2 ports of the optical protector board are respectively connected to the S2 / S1 ports of the optical protector board; wherein the S1 / S2 ports are optical module interfaces; and the B1 / B2 ports are virtual ports.

[0021] The NE1 port of the optical protector board is connected to the core device NE1 through optical fiber, and the NE2 port is also connected to the core device NE2 through optical fiber to complete the physical link. B1 and B2 are virtual ports, not traditional physically visible independent interfaces, but are connected to the centralized processing module through the backplane. During system operation, the optical protector board transmits control instructions, status information and other data carried by the B1 / B2 port to the centralized processing module through the link of the backplane, and receives configuration parameters, control signals, etc. issued by the centralized processing module, forming an interactive channel between the optical protector and the system control unit, supporting the system's centralized management and scheduling of optical protection functions.

[0022] The N1 port is connected to the S2 port, and the N2 port is connected to the S1 port respectively. Here, S1 / S2 serves as the optical module interface and has the pluggable feature. This design allows for the flexible replacement of different types of optical modules (such as optical modules with different transmission rates and distances) according to actual network requirements. It not only enhances the system's ability to adapt to various network scenarios but also facilitates later maintenance and upgrade. When the optical module fails or needs to be upgraded, it can be directly plugged and unplugged for replacement without complex operations on the entire optical protector single board or system, reducing the maintenance cost and difficulty.

[0023] Through the collaborative design of optical fibers, backplanes, and optical module interfaces, a complete link is constructed between the optical protector single board and the core device and the centralized processing module. It not only realizes the physical transmission of optical signals but also meets the control and management requirements through backplane interaction. At the same time, the pluggable optical module interface enhances the system flexibility, providing the basic connection support for the optical protection system to implement functions such as optical power detection, link switching protection, and data processing.

[0024] Furthermore, as Figure 3 shown, the system includes multiple optical protector single boards; the connection logic between the optical protector single board and the protected network device is the same as the connection logic between the optical protector and the first network device and the second network device.

[0025] The connection logic between each optical protector single board and the protected network device is consistent with the connection logic between this optical protector and the first network device and the second network device. Similar to the connection of the optical protector to the first and second network devices through optical fibers, the NE1 and NE2 ports of each optical protector single board are respectively connected to the corresponding protected network device through optical fibers.

[0026] The B1 and B2 virtual ports of each optical protector single board are also connected to the centralized processing module through the backplane. As the data transmission and exchange hub inside the system, the backplane can efficiently transmit the status information, monitoring data, etc. of each optical protector single board to the centralized processing module.

[0027] The N1 and S2, N2 and S1 ports inside the optical protector single board are connected to each other, and S1 and S2 are pluggable optical module interfaces. This is also applicable in the system with multiple optical protector single boards. Different optical modules can be selected and replaced according to actual network requirements to adapt to different transmission distances, rates, and bandwidth requirements.

[0028] Multiple optical protector single boards do not exist in isolation in the system, but can work together through a centralized processing module. The centralized processing module can monitor the working status of each optical protector single board in real time, and optimize the allocation and scheduling of resources according to the overall operation of the network. For example, when the network traffic in a certain area suddenly increases, the centralized processing module can adjust the parameters of the corresponding optical protector single board to ensure the stable operation of the link in that area. At the same time, when performing system maintenance or upgrade, the centralized processing module can also perform unified operations on multiple optical protector single boards to improve work efficiency.

[0029] Further, the control of the operating state of the optical protector single board includes:

[0030] When the optical power detection of S1-RX or S2-RX of the optical protector single board is lower than the first threshold, switch to the bypass state;

[0031] When the bit error rate detected at the B1 or B2 or S1 or S2 port of the optical protector single board reaches the second threshold, switch to the bypass state;

[0032] When the traffic detected at the B1 or B2 or S1 or S2 port of the optical protector single board is lower than the third threshold, switch to the bypass state;

[0033] When the optical protector single board checks for abnormalities, switch to the bypass state;

[0034] When an abnormal internal communication heartbeat is detected, switch to the bypass state;

[0035] When an abnormality of the logic control unit is detected, switch to the bypass state.

[0036] When the optical power detection value of the S1-RX or S2-RX port of the optical protector single board is lower than the first threshold, it indicates that the upstream signal power received by the optical protector single board is insufficient, and there may be problems such as fiber optic link breakage, optical module failure, or abnormal light emission from the peer device. At this time, the system determines that the input link of the optical protector single board is abnormal, triggers a bypass switch, and avoids data transmission errors caused by weak signals.

[0037] Exceeding the bit error rate triggers a bypass switch. When the bit error rate detected at the B1 or B2 or S1 or S2 port of the optical protector single board reaches the second threshold, it means that the link transmission quality has seriously deteriorated and the data error rate exceeds the acceptable range. The exceeding of the bit error rate may be caused by factors such as excessive optical link noise, deterioration of optical module performance, or transmission distance exceeding the optical module adaptation range. At this time, the system determines that the current link can no longer ensure accurate data transmission, immediately switches to the bypass state, isolates the faulty link, and ensures the smooth operation of services between core network devices.

[0038] Traffic anomaly triggers bypass switching. When the traffic detected at the B1 or B2 or S1 or S2 port of the optical protector board is lower than the third threshold, it indicates that there may be service interruption, port negotiation anomaly, or upper-layer service abnormal shutdown in the link. The system triggers bypass switching when the traffic anomaly decreases by real-time monitoring of the port traffic changes, avoiding long-term service interruption caused by traffic anomaly.

[0039] Device and communication status anomaly trigger bypass switching. When there are hardware failures (such as chip anomalies, power module failures) in the optical protector board or the logic control unit itself, or internal communication heartbeat signals are abnormal (such as the loss of heartbeat signals between the logic control unit and the board, the heartbeat period exceeding the set range), the system determines that the device operating status or the internal communication link is abnormal. To prevent the spread of faults from affecting core services, the system immediately switches to the bypass state, ensuring the basic communication between core network devices, and at the same time providing a time window for fault troubleshooting and repair.

[0040] Among them, the selection of the threshold can be set accordingly according to the quality requirements of the actual communication network. Through the above multi-dimensional monitoring and precise triggering mechanism, the system can quickly switch to the bypass state in scenarios such as optical power anomaly, bit error rate exceeding the standard, traffic anomaly, and device status failure, effectively improving the reliability and service continuity of the network, and meeting the requirements of high-stability communication scenarios.

[0041] Further, as Figure 4 shown, the bypass state includes:

[0042] Forward the data of the NE2-Rx port of the second network device to the NE1-Tx port of the first network device;

[0043] Forward the data of the NE1-Rx port of the first network device to the NE2-Tx port of the second network device.

[0044] In the bypass state, the system ensures the physical connection between core network devices by reconstructing the data transmission path, minimizing the impact of faults on services. The specific working mechanism is as follows:

[0045] Data flow reconstruction. The optical protector board realizes the direct connection switching between core network NE1 and NE2: The data received by the receiving end NE2-Rx of core network NE2 no longer passes through the conventional processing path of the optical protector board, but directly through the switching mechanism inside the optical protector board, and is transferred to the sending end NE1-Tx of core network NE1. Bypassing the possibly faulty ports and backplane links of the optical protector board, a direct path is formed.

[0046] Similarly, the data received by the core network NE1 receiver (NE1-Rx) is directly transferred to the transmitter of the core network NE2 (NE2-Tx) through the fast switching logic inside the optical protection board. Through the reconstruction of this bidirectional data path, a direct optical fiber connection channel is established between the core network NE1 and NE2 to ensure that basic communication is not interrupted.

[0047] In the bypass state, the system isolates the faulty optical protection board ports (such as S1 / S2 / N1 / N2 ports) from the main communication path. For example, if the optical power of the S1-Rx port is lower than the threshold, after bypass is triggered, the communication between NE1 and NE2 no longer depends on this faulty port, avoiding the continuous impact of the fault on services.

[0048] By establishing a fast switch of the direct connection path, the bypass state ensures the continuous transmission of service data between the core network NE1 and NE2. Even if the optical protection board or the aggregation and diversion board fails, key services such as voice, video, and data transmission can still maintain basic operation, meeting the high reliability requirements of the communication system.

[0049] The essence of the bypass state is to restore the direct optical fiber connection between the core network NE1 and NE2. This underlying physical connection method is not affected by the upper layer protocol and device processing logic and has the highest priority communication guarantee ability. Even if the upper layer software of the system has an exception, the physical direct connection path can still remain unblocked, buying time for fault troubleshooting and repair.

[0050] Furthermore, the logic control unit includes:

[0051] When the logic control unit detects that the state of the optical protection board is normal, it controls the optical protection board to maintain the series connection state;

[0052] In the series connection state, it continuously detects the state data of the optical protection board and automatically configures the heartbeat state of the corresponding board;

[0053] According to the heartbeat state, it detects the optical power, traffic, and bit error rate of the optical protection board ports.

[0054] When working normally, it switches to the series connection state. When in the series connection state, the logic control unit will continuously detect whether the board state is abnormal, automatically configure the corresponding heartbeat state. The internal heartbeat can ensure the safe transmission of control signals through VLAN division, detect the traffic state of virtual ports, count the bit error rate and the state of traffic decline, and detect the optical power state of the optical protection board ports. The traffic detection interface of the port is integrated in the centralized switching and processing module unit. The logic control unit implements the entire switching control logic and can achieve a fast switching mechanism to ensure timely switching to the bypass state when an abnormal situation occurs.

[0055] Furthermore, as Figure 5As shown, the series connection state includes:

[0056] Forward the data of the NE1-Rx port of the first network device to the NE1-Tx port of the first network device; forward the data of the NE1-Tx port of the first network device to the S2-RX port of the optical protector board;

[0057] Forward the data of the S2-RX port of the optical protector board to the B1-TX of the optical protector board, and the B1 / B2 ports perform traffic crossover between ports through the logic control unit;

[0058] Forward the data of the B1-Tx port of the optical protector board to the B2-Rx port;

[0059] Forward the data of the B2-Rx port of the optical protector board to the B1-Tx port;

[0060] The first flow direction of the traffic in the system is from NE1-Rx to N1-Tx to S2-Rx to B1-Tx to B2-Rx to S1-Tx to N2-Rx to N2-Tx;

[0061] The second flow direction of the traffic in the system is from NE2-Rx to N2-Tx to S1-Rx to B2-Tx to B1-Rx to S2-Tx to N1-Rx to N1-Tx.

[0062] When in the series connection state, the data flow direction starting from the NE1-Rx direction includes that the data received by the receiving end (NE1-Rx) of the core network device NE1 is first transmitted to the N1-Tx port of the optical protector board. This is the starting point for the data to enter the system processing flow, and the optical protector board begins to perform preliminary monitoring and processing preparation on the data.

[0063] The internal transmission of the optical protector board includes that the data of the N1-Tx port is then transmitted to the S2-Rx port to ensure that the data can be smoothly transferred from one interface to the backplane interface. The data from the S2-Rx port of the optical protector board to the backplane is then transmitted to the B1-Tx port, and the virtual port B1 is connected to the logic control unit. This step realizes the data interaction between the optical protector board and the logic control unit, and introduces the data from the optical protection link to the switching and processing link.

[0064] The internal traffic crossover of the logic control unit involves, after receiving data at the B1-Tx port, transferring the data from the B1-Tx port to the B2-Rx port according to its internal traffic crossover rules. The data returned from the logic control unit to the optical protection board includes the data at the -Tx port being transmitted through an optical fiber to the S1-Tx port of the optical protection board, and then successively passing through N2-Rx and finally reaching the N2-Tx port. This series of transmission processes completes the return path of the data after being processed by the logic control unit, enabling the data to return to the core network device or continue with subsequent processing.

[0065] The data flow direction starting from NE2-Rx includes from the core network to the optical protection board. The data received at the receiving end (NE2-Rx) of the core network device NE2 is transmitted to the N2-Tx port of the optical protection board, initiating the data processing process. The internal transmission within the optical protection board includes the data transfer from the N2-Tx port to the S1-Rx port to prepare for the connection with the logic control unit.

[0066] From the optical protection board to the logic control unit includes the data transmission from the S1-Rx port to the B2-Tx port, connecting to the backplane through the B1 / B2 port. The internal traffic crossover of the optical protection board includes the logic control unit transferring the data at the B2-Tx port to the B1-Rx port to implement the data exchange and processing operation. The data at the S2-Tx port is transmitted through an optical fiber to the N1-Rx port of the optical protection board and finally reaches the N1-Tx port, completing the data transmission and processing cycle.

[0067] That is, the traffic differentiates two directions. One direction is NE1-Rx to N1-Tx to S2-Rx to B1-Tx to B2-Rx to S1-Tx to N2-Rx to N2-Tx, and the other direction is NE2-Rx to N2-Tx to S1-Rx to B2-Tx to B1-Rx to S2-Tx to N1-Rx to N1-Tx.

[0068] The cascaded state realizes the collaborative work among the core network device, the optical protection board, and the aggregation and diversion board through reasonable data flow planning and connection methods. It can effectively aggregate and divert data, improving the efficiency and flexibility of data transmission. At the same time, through the monitoring and protection functions of the optical protection board, abnormal situations in the data transmission process can be detected and processed in a timely manner, ensuring the stability and reliability of the system. In practical applications, the cascaded state can be widely applied to various communication networks and data processing systems to meet the data transmission and processing requirements under different service scenarios.

[0069] It is worth mentioning that all the modules involved in this embodiment are logical modules. In practical applications, a logical unit can be a physical unit, a part of a physical unit, or a combination of multiple physical units. In addition, in order to highlight the innovative part of this application, units that are not closely related to solving the technical problems proposed in this application are not introduced in this embodiment, but this does not mean that there are no other units in this embodiment.

[0070] The flowcharts or block diagrams in the accompanying drawings illustrate the possible architectures, functions, and operations of devices, methods, and computer program products according to various embodiments of the present application. In this regard, each block in the flowchart or block diagram may represent a module, a program segment, or a part of code that contains one or more executable instructions for implementing the specified logical function. It should also be noted that in some alternative implementations, the functions marked in the blocks may occur in a different order than that marked in the accompanying drawings. For example, two consecutive blocks shown may actually be executed substantially in parallel, and they may sometimes be executed in the reverse order, depending on the functions involved. It should also be noted that each block in the block diagram and / or flowchart, and the combination of blocks in the block diagram and / or flowchart, can be implemented by a dedicated hardware-based system for performing the specified functions or operations, or by a combination of dedicated hardware and computer instructions.

[0071] The scope of this application is defined by the appended claims rather than the above description. Therefore, all changes that fall within the meaning and scope of the equivalent elements of the claims are intended to be included in this application. Any reference signs in the claims should not be construed as limiting the claims involved. In addition, obviously, the word "including" does not exclude other units or steps, and the singular does not exclude the plural. The multiple units or devices stated in the apparatus claims can also be implemented by one unit or device through software or hardware. The words "first", "second", etc. are only used for distinguishing descriptions and do not represent any specific order, nor can they be understood as indicating or implying relative importance.

[0072] As described above, the above is only the specific implementation manner of this application, but the protection scope of this application is not limited thereto. Any person skilled in the art within the technical scope disclosed in this application can easily mention changes or substitutions, which should all be covered by the protection scope of this application. Therefore, the protection scope of this application should be subject to the protection scope of the claims, and the above embodiments should be regarded as exemplary and non-limiting.

Claims

1. An integrated switching processing system without a LAN port, characterized in that: The system comprises: An optical protector board, which is connected to the network device and is used for optical power detection and switching protection; A backplane, the backplane being connected to the optical protector board via a physical interface; A logic control unit is connected to the backplane, and the optical protector board is connected to the logic control unit through the backplane via a network interface; and the operation state of the optical protector board is controlled.

2. The system according to claim 1, characterized in that The system comprises: The optical protector board provides protection for four groups of communication links; the backplane provides eight service slots.

3. The system according to claim 2, characterized in that The optical protector single board comprises: The NE1 / NE2 port of the optical protector board is optically connected to the first network device and the second network device respectively; The B1 / B2 ports of the optical protector board are respectively connected to the logic control unit through the backplane; The N1 / N2 ports of the optical protector board are respectively connected to the S2 / S1 ports of the optical protector board; The S1 / S2 ports are optical module interfaces, and the B1 / B2 ports are virtual ports.

4. The system according to claim 3, characterized in that The system comprises a plurality of optical protector boards; the connection logic between the optical protector boards and the protected network device is the same as the connection logic between the optical protector and the first network device and the second network device.

5. The system according to claim 4, characterized in that The controlling the operating state of the optical protector board includes: When the optical power detection of S1-RX or S2-RX of the optical protector board is lower than the first threshold, switching to the bypass state; When the B1 or B2 or S1 or S2 port of the optical protector board detects that the bit error rate reaches a second threshold, it switches to a bypass state; When the B1 or B2 or S1 or S2 port of the optical protector board detects that the flow rate is lower than a third threshold, switching to a bypass state; When the optical protector board detects an abnormality, it switches to a bypass state; When an abnormal internal communication heartbeat is detected, it switches to bypass state; When the logic control unit is detected to be abnormal, it switches to the bypass state.

6. The system according to claim 5, characterized in that The bypass state includes: Forwarding data from the NE2-Rx port of the second network device to the NE1-Tx port of the first network device; The data of the NE1-Rx port of the first network device is forwarded to the NE2-Tx port of the second network device.

7. The system according to claim 6, characterized in that The logic control unit comprises: When the logic control unit detects that the state of the optical protector board is normal, the logic control unit controls the optical protector board to maintain the serial connection state; In the serial connection state, the state data of the optical protector board is detected in real time, and the heartbeat state of the corresponding board is automatically configured; According to the heartbeat status, the optical power, flow rate and bit error rate of the optical protector board port are detected.

8. The system according to claim 7, characterized in that The cascade state includes: Forwarding the data of the NE1-Rx port of the first network device to the NE1-Tx port of the first network device; forwarding the data of the NE1-Tx port of the first network device to the S2-RX port of the optical protector board; Forwarding the data of the S2-RX port of the optical protector board to the B1-TX of the optical protector board, and the B1 / B2 port performs traffic crossover between ports through the logic control unit; Forwarding the data of the B1-Tx port of the optical protector board to the B2-Rx port; Forwarding data of the B2-Rx port of the optical protector board to the B1-Tx port; The first flow direction of traffic in the system is NE1-Rx to N1-Tx to S2-Rx to B1-Tx to B2-Rx to S1-Tx to N2-Rx to N2-Tx; The second flow direction of traffic in the system is NE2-Rx to N2-Tx to S1-Rx to B2-Tx to B1-Rx to S2-Tx to N1-Rx to N1-Tx.

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