CN210807323U - Redundant dual master control network device - Google Patents
Redundant dual master control network device Download PDFInfo
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- CN210807323U CN210807323U CN201922491849.4U CN201922491849U CN210807323U CN 210807323 U CN210807323 U CN 210807323U CN 201922491849 U CN201922491849 U CN 201922491849U CN 210807323 U CN210807323 U CN 210807323U
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Abstract
The embodiment of the utility model relates to a redundant dual-master control network device, which comprises at least two master control boards and a master control switching circuit; all the main control boards are electrically connected with the main control switching circuit; the IP addresses of all the main control boards are consistent, and the MAC addresses of all the main control boards are consistent, so that the problem that lossless backup cannot be achieved when the main and standby main control of the conventional network communication platform are switched is solved.
Description
Technical Field
The embodiment of the utility model provides a relate to communication network technical field, concretely relates to redundant two master control network equipment.
Background
With the rapid growth of internet traffic, network devices need to ensure uninterrupted and reliable operation in addition to large-traffic data exchange and other increasingly complex traffic processing.
The traditional network communication platform is a hot backup routing protocol through software HRRP, so that a plurality of routers form a 'hot backup group'. Such redundant masters are implemented using network connections. This method cannot achieve lossless backup because the heartbeat signals of the two main control units are realized through software, and cannot be immediately sensed when a fault occurs.
SUMMERY OF THE UTILITY MODEL
The utility model discloses an at least one embodiment provides a redundant two master control network equipment, when having solved current network communication platform activestandby master control and switching, can not accomplish the problem of nondestructive backup.
The embodiment of the utility model provides a redundant two master control network equipment is proposed, including two at least main control boards and master control switching circuit;
all the main control boards are electrically connected with the main control switching circuit;
and the IP addresses of all the main control boards are consistent, and the MAC addresses of all the main control boards are consistent.
Further, a back plate is included;
the back board is provided with a main control board slot position and at least one standby main control board slot position;
one of the at least two main control boards is inserted into the main control board slot position to serve as a main control board; and the other main control boards are inserted into the standby main control board slots to serve as standby main control boards.
Further, the redundant dual-master control network device comprises a first master control board and a second master control board;
the master control switching circuit comprises a first resistor, a second resistor, a third resistor, a fourth resistor, a first inverter and a second inverter;
the first end of the first resistor is connected with the pull-up resistor of the first main control board; a second end of the first resistor, a first end of the fourth resistor, an output end of the second inverter and an input end of the first inverter are connected with each other to serve as a first control signal input end; the first control signal input end is used for accessing a switching master control signal sent by the first master control board; a second end of the fourth resistor is grounded;
the first end of the second resistor is connected with the pull-up resistor of the second main control board; a second end of the second resistor, a first end of the third resistor, an output end of the first inverter and an input end of the second inverter are connected with each other to serve as a second control signal input end; the second control signal input end is used for accessing a switching master control signal sent by the second master control board; and the second end of the third resistor is grounded.
Further, the monitoring device also comprises a monitoring unit;
the monitoring unit is connected with all the main control boards, and the main control switching circuit is also connected with the monitoring unit.
Further, the redundant dual master control network device includes a power supply:
each main control board is connected with the power supply;
the monitoring unit comprises a power supply operation monitoring subunit and is used for monitoring the connection condition of the main control board and the power supply;
and the master control switching circuit is connected with the power supply operation monitoring subunit.
Further, the redundant dual master control network device includes at least one fan:
each main control board is arranged corresponding to at least one fan;
the monitoring unit comprises a fan operation monitoring subunit and a control unit, wherein the fan operation monitoring subunit is used for monitoring the operation condition of each fan;
the main control switching circuit is connected with the fan operation monitoring subunit.
Further, the redundant dual-master control network device comprises a temperature sensor for monitoring the master control board;
the master control switching circuit is connected with the temperature sensor.
Furthermore, the system also comprises at least one service board, and the service board is connected with each main control board.
Further, the system also comprises an exchange interface board;
the exchange interface board is connected with each main control board and each service board.
The embodiment of the utility model provides a redundant two master control network equipment, all the main control board all with the main control switching circuit electricity is connected, all the IP address of main control board is unanimous, all the MAC address of main control board is unanimous, when having solved current network communication platform activestandby master control and switching, can't accomplish the problem of nondestructive backup, has reached the purpose of realizing nondestructive backup.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed for describing the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings according to the drawings.
Fig. 1 is a block diagram illustrating a redundant dual master control network device according to an embodiment of the present invention;
fig. 2 is a schematic structural diagram of another redundant dual master control network device according to an embodiment of the present invention;
fig. 3 is a block diagram of another redundant dual master control network device according to an embodiment of the present invention;
fig. 4 is a flowchart of a method for switching between a master controller and a slave controller according to an embodiment of the present application.
Detailed Description
In order to make the above objects, features and advantages of the present invention more clearly understood, the present invention will be further described in detail with reference to the accompanying drawings and examples. It is to be understood that the embodiments described are some, but not all embodiments of the invention. The specific embodiments described herein are merely illustrative of the invention and are not intended to be limiting. All other embodiments, which can be derived from the description of the embodiments of the present invention by a person skilled in the art, are within the scope of the present invention.
It is noted that, in this document, relational terms such as "first" and "second," and the like, may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions.
The embodiment of the disclosure provides a redundant dual-master control network device to achieve the effect of lossless backup, aiming at the problem that lossless backup cannot be achieved when a main master control and a standby master control of a network communication platform are switched in the prior art.
Fig. 1 is a block diagram of a redundant dual master control network device according to an embodiment of the present invention. Referring to fig. 1, the redundant dual-master network device includes at least two master control boards (for example, fig. 1 includes two master control boards, which are a master control board HostA and a master control board HostB, respectively) and a master switching circuit 100; all the main control boards are electrically connected with the main control switching circuit 100; the IP addresses of all the main control boards are consistent, and the MAC addresses of all the main control boards are consistent.
In actual operation, the redundant dual-master control network device includes two active/standby switching modes, which are an active switching mode and a passive switching mode, respectively.
The active switching mode refers to when the main control board needs to be upgraded and maintained. The main and standby main control switching can be initiated through the current main control board, so that the lossless switching can be realized, and the reliability and the maintainability of the system can be improved.
The passive switching mode is that when the standby main control board cannot detect the handshake and heartbeat signals of the current main control board, the standby main control board automatically initiates the main-standby main control switching, upgrades the standby main control board to the main control board, controls the whole system, and avoids the system fault of the rack system caused by the fault of the main control board.
Because the IP addresses of all the main control boards are consistent and the MAC addresses of all the main control boards are consistent, when the main and standby main control boards are switched, the corresponding configuration of other controlled units (such as service boards) in the system does not need to be adjusted, and the software and hardware structures of other units do not need to be changed. In the process of switching the main and standby main control units, other controlled units (such as a service board) have no perception, the service is not interrupted at all, and the lossless switching can be further realized.
Therefore, the technical scheme can realize the following beneficial effects:
1. all the main control boards are electrically connected with the main control switching circuit to replace network connection, so that the working condition and the fault condition of the main control board can be known in time, and the main and standby main control switching can be carried out as required. When any one of the standby main control boards initiates preemption to become a new main control board, the original main control board is automatically descended to be the standby main control board. The whole machine only has one main control board to process service at any time.
2. The master-slave master control switching is realized seamlessly, the time delay is in a nanosecond level, and the heartbeat check is in a millisecond level.
3. The technical scheme supports the online repair of the main control board, namely, after the standby main control board initiates preemption to become a new main control board, the original main control board is restored.
4. The technical scheme supports the isolation of the fault board, namely, after the standby main control board initiates preemption to become a new main control board, the fault board (namely the original main control board) is isolated by power failure.
Optionally, the redundant dual master control network device further includes a backplane; the backboard is provided with a main control board slot position and at least one standby main control board slot position; one of the at least two main control boards is inserted into the main control board slot position to serve as a main control board; and the other main control boards are inserted into the standby main control board slots to serve as standby main control boards. Therefore, the primary main control board and the standby main control board can be judged for the first time in the initial stage (namely the power-on time of the whole machine).
Fig. 2 is a schematic structural diagram of another redundant dual master control network device according to an embodiment of the present invention. Referring to fig. 2, the redundant dual master control network device includes a first master control board and a second master control board; the master control switching circuit comprises a first resistor R1, a second resistor R2, a third resistor R3, a fourth resistor R4, a first inverter A1 and a second inverter A2; the first end of the first resistor R1 is connected with the pull-up resistor EP of the first main control board Host 1; the second end of the first resistor R1, the first end of the fourth resistor R4, the output end of the second inverter a2, and the input end of the first inverter a1 are connected to each other to serve as a first control signal input end V1; the first control signal input end V1 is used for accessing a switching master control signal sent by a first master control board Host 1; a second end of the fourth resistor R4 is grounded; the first end of the second resistor R2 is connected with the pull-up resistor EP of the second main control board Host 2; the second end of the second resistor R2, the first end of the third resistor R3, the output end of the first inverter a1, and the input end of the second inverter a2 are connected to each other to serve as a second control signal input end V2; the second control signal input end V2 is used for accessing a switching master control signal sent by the second master control board Host 2; the second terminal of the third resistor R3 is connected to ground.
Continuing to refer to fig. 2, if HostA is the master control board and HostA is the standby master control board, when HostB wants to initiate the master-standby master control switching, HostA B inputs an ALT _ SYSEN signal at second control signal input terminal V2, where the ALT _ SYSEN signal is a low level signal, so that first control signal input terminal V1 is forced to be a high level signal (i.e., a SYSEN signal), and HostA gives up the master control passively.
Optionally, the redundant dual master control network device further includes a monitoring unit; the monitoring unit is connected with all the main control boards, and the main control switching circuit is also connected with the monitoring unit. The monitoring unit is used for monitoring handshake and heartbeat signals of the current main control board, and in addition, the monitoring unit can also monitor other factors influencing the performance of the main control board, so that main and standby main control switching can be carried out in time, and lossless switching is ensured.
Optionally, the redundant dual master control network device includes a power supply: each main control board is connected with a power supply; the monitoring unit comprises a power supply operation monitoring subunit and is used for monitoring the connection condition of the main control board and the power supply; the main control switching circuit is connected with the power supply operation monitoring subunit. In the working process, when the power supply operation monitoring subunit detects that the main control board is in connection failure with the power supply, the main control switching circuit controls the original standby main control board to be upgraded to a new main control board, and the original main control board automatically descends to the standby main control board so as to realize the main-standby main control switching.
Optionally, the redundant dual master control network device includes at least one fan: each main control board is arranged corresponding to at least one fan; the monitoring unit comprises a fan operation monitoring subunit and is used for monitoring the operation condition of each fan; the main control switching circuit is connected with the fan operation monitoring subunit. In the working process, when the fan operation monitoring subunit detects a fan fault set for the main control board, the main control switching circuit controls the original standby main control board to be upgraded to a new main control board, and the original main control board automatically descends to the standby main control board, so that the main and standby main control switching is realized.
Optionally, the redundant dual master control network device includes a temperature sensor for monitoring the master control board; the master control switching circuit is connected with the temperature sensor. In the working process, when the temperature sensor detects that the temperature of the main control board is higher than the set temperature, the main control switching circuit controls the original standby main control board to be upgraded to a new main control board, and the original main control board automatically descends to the standby main control board so as to realize the main-standby main control switching. The set temperature can be set according to experience of workers, and the redundant dual-master control network equipment can be in a better working state.
Optionally, the redundant dual-master control network device further includes at least one service board, and the service board is connected to each master control board.
Optionally, the redundant dual-master control network device further includes a switching interface board; the exchange interface board is connected with each main control board and each service board.
Fig. 3 is a block diagram of another redundant dual-master network device according to an embodiment of the present invention. The redundant dual master network device of fig. 3 may also be referred to as an 5/6U distributed chassis hardware platform. Referring to fig. 3, the redundant dual-master network device includes two master control boards (i.e., a master service board Host1 and a master service board Host2), two processing boards, and three switching interface boards. Any two of the two main control boards, the two processing boards and the three exchange interface boards are connected with each other.
The main control board and the processing board are responsible for service processing, configuration and maintenance of the whole frame. The main control board adopts 1+1 backup and supports two double E5 processing boards. The main control board is the same as the service board, wherein the two processing boards support the main control board function at the same time.
Two (16-path 10GE/GE, 4-path 40GE or 2-path 100G) interface board slots are provided in a single slot in the exchange interface board, and 1 onboard router is used for configuration management.
The management plane is gigabit ethernet, and as shown by the dotted line in the above figure, each master control switch board is connected to the service board through 1 gigabit ethernet, and is used for configuration and management of the service board by the master control board. The four service boards adopt 7 GEs, 3 GEs are mutually connected with 3 exchange interface boards in pairs, the 3 GEs are mutually connected with 4 service boards in pairs, and one GE is led out of a GE electric port from the front panel.
Optionally, signals related to the switching between the main and standby main controls of the redundant dual-main control network device in the above scheme may be predefined, as shown in table 1. Wherein, CSU represents the main control board and SPU represents the service board. In the initial stage (i.e. the power-on time of the whole machine), the main control board determines whether the main control board slot or the standby main control board slot is the main control board or the standby main control board by inserting the main control board into the main control board slot or the standby main control board slot in the backplane.
TABLE 1
Fig. 4 is a flowchart of a method for switching between a master controller and a slave controller according to an embodiment of the present application. Referring to fig. 2, fig. 4 and table 1, the method for switching between the main and standby main controllers includes:
s201, electrifying the whole machine, self-checking the main control board, and determining whether the main control board is HostA or HostB by identifying the slot number of the back board; if yes, executing S202; if yes, S203 is executed.
S202, checking whether the HostB single board is in place; if so, go to step S204; otherwise, S205 is performed.
S203, checking whether the HostA single board is in place; if so, go to step S208; otherwise, S210 is performed.
S204, checking a SYSEN signal, and confirming whether the HostB is the main control board; if the HostB is the main master control board, S206 is executed; otherwise, S205 is performed.
And S205, the HostA sets an ALT _ SYSEN signal, preempts the master control board as the main master control board, and executes S207.
S206, checking a heartbeat signal ACK _ CSU _ CPLD of the HostB, and simultaneously sending a heartbeat signal REG _ CSU _ CPLD; if the HostB has no heartbeat, S205 is executed.
S207, checking a heartbeat signal ACK _ CSU _ CPLD of the HostB, and simultaneously sending a heartbeat signal REG _ CSU _ CPLD.
S208, delaying for 10ms, checking a SYSEN signal, and confirming whether HostA is the main signal; if the HostA is the main control board, S209 is executed; otherwise, S210 is performed.
S209, checking a heartbeat signal ACK _ CSU _ CPLD of the HostA, simultaneously sending a heartbeat signal REG _ CSU _ CPLD, and if the HostA does not have heartbeat, executing S210.
And S210, the HostB sets an ALT _ SYSEN signal, preempts the master control board as the main control board, and executes S211.
S211, checking a heartbeat signal ACK _ CSU _ CPLD of HostA and simultaneously sending a heartbeat signal REG _ CSU _ CPLD.
It should be noted that, in this document, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element.
It will be appreciated by those of skill in the art that although some embodiments described herein include some but not other features included in other embodiments, combinations of features of different embodiments are meant to be within the scope of the invention and form different embodiments.
Although the embodiments of the present invention have been described in conjunction with the accompanying drawings, those skilled in the art may make various modifications and variations without departing from the spirit and scope of the invention, and such modifications and variations fall within the scope defined by the appended claims.
Claims (9)
1. A redundant dual-master control network device is characterized by comprising at least two master control boards and a master control switching circuit;
all the main control boards are electrically connected with the main control switching circuit;
and the IP addresses of all the main control boards are consistent, and the MAC addresses of all the main control boards are consistent.
2. The redundant dual master control network device of claim 1, further comprising a backplane;
the back board is provided with a main control board slot position and at least one standby main control board slot position;
one of the at least two main control boards is inserted into the main control board slot position to serve as a main control board; and the other main control boards are inserted into the standby main control board slots to serve as standby main control boards.
3. The redundant dual-master network device of claim 1,
the redundant dual-master control network equipment comprises a first master control board and a second master control board;
the master control switching circuit comprises a first resistor, a second resistor, a third resistor, a fourth resistor, a first inverter and a second inverter;
the first end of the first resistor is connected with the pull-up resistor of the first main control board; a second end of the first resistor, a first end of the fourth resistor, an output end of the second inverter and an input end of the first inverter are connected with each other to serve as a first control signal input end; the first control signal input end is used for accessing a switching master control signal sent by the first master control board; a second end of the fourth resistor is grounded;
the first end of the second resistor is connected with the pull-up resistor of the second main control board; a second end of the second resistor, a first end of the third resistor, an output end of the first inverter and an input end of the second inverter are connected with each other to serve as a second control signal input end; the second control signal input end is used for accessing a switching master control signal sent by the second master control board; and the second end of the third resistor is grounded.
4. The redundant dual master network device of claim 2, further comprising a monitoring unit;
the monitoring unit is connected with all the main control boards, and the main control switching circuit is also connected with the monitoring unit.
5. The redundant dual-master network device of claim 4, wherein the redundant dual-master network device comprises a power supply:
each main control board is connected with the power supply;
the monitoring unit comprises a power supply operation monitoring subunit and is used for monitoring the connection condition of the main control board and the power supply;
and the master control switching circuit is connected with the power supply operation monitoring subunit.
6. The redundant dual-master network device of claim 4, wherein the redundant dual-master network device comprises at least one fan:
each main control board is arranged corresponding to at least one fan;
the monitoring unit comprises a fan operation monitoring subunit and a control unit, wherein the fan operation monitoring subunit is used for monitoring the operation condition of each fan;
the main control switching circuit is connected with the fan operation monitoring subunit.
7. The redundant dual master network device of claim 4, wherein the redundant dual master network device comprises a temperature sensor for monitoring the master control board;
the master control switching circuit is connected with the temperature sensor.
8. The redundant dual-master network device of claim 1, further comprising at least one service board, wherein the service board is connected to each master control board.
9. The redundant dual master control network device of claim 8, further comprising a switch interface board;
the exchange interface board is connected with each main control board and each service board.
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| CN112416387A (en) * | 2020-11-05 | 2021-02-26 | 东莞欧陆通电子有限公司 | Power supply system and power supply system upgrading method |
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| CN112416387A (en) * | 2020-11-05 | 2021-02-26 | 东莞欧陆通电子有限公司 | Power supply system and power supply system upgrading method |
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