CN105871614A - Protection method and device of board cards in communication device - Google Patents
Protection method and device of board cards in communication device Download PDFInfo
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- CN105871614A CN105871614A CN201610200647.8A CN201610200647A CN105871614A CN 105871614 A CN105871614 A CN 105871614A CN 201610200647 A CN201610200647 A CN 201610200647A CN 105871614 A CN105871614 A CN 105871614A
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- board
- primary
- standby
- interface
- panel interface
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L41/00—Arrangements for maintenance, administration or management of data switching networks, e.g. of packet switching networks
- H04L41/06—Management of faults, events, alarms or notifications
- H04L41/0654—Management of faults, events, alarms or notifications using network fault recovery
- H04L41/0663—Performing the actions predefined by failover planning, e.g. switching to standby network elements
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Abstract
The invention provides a protection method and device of board cards in a communication device. The technical scheme comprises following steps of configuring inter-board interconnection channels between adjacent board cards; normally, through adoption of the panel interface of a master board card, receiving service data needing to be sent to a master/backup switching board and sending service data sent by the master/backup switching board through adoption of the backboard interface of the master board card; setting the inter-board interconnection channel between the master board card and the backup board card as an interconnection state when the fault of a link passing through the panel interface of the master board card is detected; executing protection switching between the master board card and the backup board card based on the inter-board interconnection channel between the master board card and the backup board card; and through adoption of the panel interface of the backup board card, receiving the service data needing to be sent to the master/backup switching board and sending the service data sent by the master/backup switching board through adoption of the backboard interface of the master board card. According to the method and the device, millisecond level cross board card protection switching can be realized, and the high reliability demand to a communication network in a power distribution network environment can be satisfied.
Description
Technical field
The application relates to the power matching network communications field, particularly to the guard method of board in a kind of communication equipment and device.
Background technology
In recent years, the continuous propelling built along with China's " strong intelligent grid ", power matching network electric power to be undertaken
The production commander of system and scheduling, also to provide service for automatization, the transmission of interactive information, it is achieved remotely monitoring,
Other value-added services such as remote meter reading, the most various real-time production class business and non real-time category information business desire bandwidth are fast
Speed increases, and power generation is to aspect proposition requirements at the higher level such as the bandwidth of power matching network communication network, capacity, quality, safety.
In order to meet the IP operation carrying demand of the following bulky grain degree constantly occurred, reduce networking and O&M simultaneously
Cost, power matching network also begins to progressively by being main to direction based on group technology evolution based on SDH circuit engineering, will
On public telecom network, the Packet Transport Network PTN technology of large-scale application introduces power matching network.
Owing in power matching network, the PTN device of application needs to transmit substantial amounts of electric power system control information, to reliability
Requirement more much higher than public communication network, therefore, upper connective plate/business board board to be realized in power communication is protected
Protect, and protection switch time will be at Millisecond, far above the requirement in public telecom network.
At present, PTN realizes board protection and typically use the mode of link aggregation (LAG), by will be located in not
With the COM1 of board be divided into same aggregation group to realize board protection, but, LAG protected mode need into
, there is inter-communicating problem in a large amount of protocol interactions of row, and due to each port status switching in aggregation group after, also can be adjoint
The renewals of mac address table etc. operate, and service recovery time is long, typically between 50ms～100ms, is difficult to reach
To the power matching network requirement less than 5 milliseconds.
Summary of the invention
In view of this, it is an object of the invention to provide guard method and the device of board in a kind of communication equipment, only need
The straddle card protection using less protocol overhead just can realize Millisecond is switched, and meets under power matching network environment logical
The high reliability request of communication network.
For achieving the above object, the technical scheme that the present invention provides is:
The guard method of board in a kind of communication equipment, described communication equipment include main power board, standby power board,
And multiple board；Main power board is all connected with each board by service channel with standby power board, adjacent two plates
In card, a board is as primary board, and another board is as standby board, between primary board and standby board
Be connected by interconnecting channels between plate, and by the link of the panel interface of primary board normal time primary board with standby
It is arranged to off-state with interconnecting channels between the plate between board；The method is applied to primary board, including:
The panel interface utilizing primary board receive need to mail to the business datum of active/standby power board and send main/
The business datum that standby power board is sent via the backplane interface of primary board；
When the link failure of panel interface by primary board being detected, by between primary board and standby board
Between plate, interconnecting channels is set to connected state, holds based on interconnecting channels between the plate between primary board and standby board
Pretection switch between the primary board of row and standby board so that standby plate card utilizes the panel interface of self to receive
Need mail to the business datum of active/standby power board and send the active/standby power board backplane interface via primary board
The business datum sent.
The protection device of board in a kind of communication equipment, described communication equipment include main power board, standby power board,
And multiple board；Main power board is all connected with each board by service channel with standby power board, adjacent two plates
In card, a board is as primary board, and another board is as standby board, between primary board and standby board
Be connected by interconnecting channels between plate, and by the link of the panel interface of primary board normal time primary board with standby
It is arranged to off-state with interconnecting channels between the plate between board；This device is applied to primary board, including:
Service Processing Unit, fault detection unit, pretection switch unit；
Described Service Processing Unit, needs to mail to active/standby power board for utilizing the panel interface of primary board to receive
Business datum and send the business datum that active/standby power board is sent via the backplane interface of primary board；
Described fault detection unit, for detecting whether the panel interface by primary board occurs link failure；
Described pretection switch unit, detects the panel interface generation chain by primary board for fault detection unit
During the fault of road, interconnecting channels between the plate between primary board and standby board is set to connected state, based on master
Perform the protection between primary board and standby board with interconnecting channels between the plate between board and standby board to fall
Change so that standby plate card utilize self panel interface receive need to mail to active/standby power board business datum, with
And send the business datum that active/standby power board is sent via the backplane interface of primary board.
In sum, the present invention is by arranging interconnecting channels between plate, by interconnecting channels between plate between adjacent board
Realize the pretection switch between primary board and standby board, carried out by the exchange chip on power board with tradition
Pretection switch is compared, it is achieved mode is simple and quick, and, the present invention uses the mode of electric switch to realize physical layer
Switching, the exchange chip perception on power board is less than the generation of switching, it is not necessary to reconfigures, can be greatly shortened
Switching time, it is possible to demand is switched in the straddle card protection meeting power matching network Millisecond.
Accompanying drawing explanation
Fig. 1 is interconnection architecture schematic diagram between board in embodiment of the present invention communication equipment；
Fig. 2 is interconnecting channels schematic diagram between the plate between the primary board of the embodiment of the present invention and standby board；
Fig. 3 is the service transmission channels schematic diagram that the embodiment of the present invention realizes on primary board；
Fig. 4 is the service transmission channels schematic diagram that the embodiment of the present invention realizes via interconnecting channels between plate；
Fig. 5 is the guard method flow chart of board in embodiment of the present invention communication equipment；
Fig. 6 is the structural representation of the protection device of board in embodiment of the present invention communication equipment.
Detailed description of the invention
For making the purpose of the present invention, technical scheme and advantage clearer, develop simultaneously embodiment referring to the drawings,
Scheme of the present invention is described in further detail.
Seeing Fig. 1, Fig. 1 is interconnection architecture schematic diagram between board in embodiment of the present invention communication equipment, such as Fig. 1 institute
Show, including 16 boards, numbering is respectively 0,1 ..., 15, and power board X, Y, wherein, X,
Y, respectively as main power board and standby power board, is all connected by service channel so that whole between 16 boards
Individual interconnection architecture is star bus structure.In the present invention, in order to realize board protection, the most further by adjacent
Interconnecting channels interconnection (four-headed arrow as shown in phantom in FIG.), adjacent two boards between plate are used between board
In a board as primary board, another board, as standby board, realizes plate based on interconnecting channels between plate
Pretection switch between card.
In the embodiment of the present invention shown in Fig. 1, between the plate between adjacent two boards, interconnecting channels uses single-pole double throw
Electric switch realizes, interconnecting channels schematic diagram between primary board as shown in Figure 2 and the plate of standby board, main board
Card is connected with active/standby power board by backplane interface, simultaneously inside primary board, and the backplane interface of primary panel
And it is configured with two electric switches between panel interface, is respectively used to transmit round about data signal, namely:
One electric switch mails to the data signal of active/standby power board for transmission, and another electric switch is for transmitting from active/standby
The data signal that power board is sent, the transmission direction of data signal is contrary.
In the connection diagram of board primary shown in Fig. 2 and standby board, two electric switches are all that single-pole double throw is opened
Closing, the not moved end of two electric switches is connected to the backplane interface of primary board, the moved end of two electric switches (namely
The cutter of electric switch) both may be coupled to the panel interface of primary board, it is also possible to it is connected to the panel of standby board
Interface.Wherein, when the moved end of two electric switches is all connected to the panel interface of primary board, primary board
Connect between panel interface and backplane interface, between panel interface and the backplane interface of primary board of standby board
Disconnecting, data signal is by from along the panel interface of the primary board via the connection of two electric switches and backplane interface
Between circuit (namely primary) transmission.Connect when the moved end of two electric switches is all connected to the panel of standby board
During mouth, connecting between panel interface and the backplane interface of primary board of standby board, the panel of primary board connects
Mouth is separated with the backplane interface of primary board, and data signal is by from standby along connect via two electric switches
Transmit with the circuit (namely primary) between panel interface and the backplane interface of primary board of board.
Operation principles based in Fig. 2 two electric switches, in embodiments of the present invention, will establish connection by cable via two
Connecting link between backplane interface and the panel interface of standby board of the primary board connect as primary board and
Interconnecting channels between the plate between standby board.
When the link of the panel interface by primary board is normal, by panel interface and the backplane interface of primary board
Connection, disconnects interconnecting channels between the plate between primary board and standby board, so that data signal is from master
Enter with the panel interface of board and (mail to the electricity of the data signal of active/standby power board for transmission via electric switch
Switch) to be transferred to active/standby exchange standby, and/or, from the data signal of active/standby power board from the backboard of primary board
Interface enters and transmission is extremely via electric switch (for transmitting the electric switch of the data signal from active/standby power board)
The panel interface of primary board.
When the link failure of the panel interface by primary board, by by with the panel interface of board and primary board
Backplane interface connection, interconnecting channels between the plate between primary board and standby board connect, thus realize lead
With the pretection switch between board and standby board so that data signal enters also from the panel interface of standby board
It is transferred to active/standby exchange standby via electric switch (mailing to the electric switch of the data signal of active/standby power board for transmission),
And/or, the data signal from active/standby power board enters from the backplane interface of primary board and (uses via electric switch
In the electric switch transmitting the data signal from active/standby power board) transmit the panel interface to standby board.
Wherein, by the concrete practice that the panel interface of primary board connects with backplane interface it is: by two electric switches
Moved end is connected to the panel interface of primary board, such as A1 and B in Fig. 21 is connected, A2 and B2 connect,
So that the panel interface of primary board connects with backplane interface, the panel interface of standby board and primary board
Backplane interface disconnect, now, based in the service transmission channels such as Fig. 3 that primary board and standby board realize
The duplex channel that dotted line indicates.Correspondingly, concrete work panel interface and the backplane interface of primary board disconnected
Method is: the moved end of two electric switches is connected to the panel interface of standby board, such as by A1 and C1 in Fig. 2
Connect, A2 and C2 connects, so that the panel interface of primary board and backplane interface disconnect, and standby board
Panel interface connect with the backplane interface of primary board.
Same reason, due to backplane interface and the face of standby board of the primary board via two electric switches connections
Connecting link between plate interface is interconnecting channels between the plate between primary board and standby board, therefore, and will be main
By the concrete practice of interconnecting channels connection between the plate between board and standby board it is: by the moved end of two electric switches
It is connected to the panel interface of standby board, such as, A1 and C1 connection, A2 and C2 in Fig. 2 is connected, thus
The panel interface of standby board is connected, the panel interface of primary board and the back of the body with the backplane interface of primary board
Plate interface disconnects, now, based on dotted line in the service transmission channels such as Fig. 4 that primary board and standby board realize
The duplex channel indicated.By the concrete practice that interconnecting channels between the plate between primary board and standby board disconnects it is:
The moved end of two electric switches is connected to the panel interface of primary board, such as A1 and B in Fig. 21 is connected,
A2 and B2 connects, so that the backplane interface of the panel interface of standby board and primary board disconnects, primary
The panel interface of board connects with backplane interface.
In embodiments of the present invention, detection is had very by the method that whether normal the link of the panel interface of primary board is
Multiple, it is for instance possible to use method for detecting connectivity, namely set with opposite end by the panel interface of primary board
Standby mutual connectivity testing message, if do not receive the connectivity detection that opposite equip. is sent in Preset Time
Message, then may determine that the link of the panel interface by primary board there occurs link failure.In the present invention
Whether concrete connective method can use OAM technology, by existing in detection Preset Time (such as 3.3 seconds)
The panel interface of primary board receives CC (Continuity Check) message of OAM, i.e. can determine that and passes through
Whether the link of the panel interface of primary board there occurs link failure.
It addition, when the link generation physical circuit fault of the panel interface by primary board, the face of primary board
Plate interface will receive loss of signal alarm, now can also determine the chain of panel interface by primary board
Road there occurs link failure.
In embodiments of the present invention, described each board is same type of board, can be upper connective plate, it is also possible to be
Business board, either upper connective plate or business board, its panel interface each means its external communication interface, wherein,
When described board is upper connective plate, the panel interface of board is the upper united mouth of upper connective plate；When described board is business
During plate, the panel interface of board is the functional area of business board.
It should be noted that what " active/standby power board " represented herein is main power board or standby power board, if
It is standby power board, then main power board fault is described.
Above the protection philosophy of board in communication equipment of the present invention is described in detail, the above-mentioned principle of technology, this
Invention provides the protection device of board in the guard method of board in a kind of communication equipment and a kind of communication equipment,
Combine Fig. 5, Fig. 6 separately below to be described in detail.
See the guard method flow chart that Fig. 5, Fig. 5 are boards in embodiment of the present invention communication equipment, described communication
Equipment includes main power board, standby power board and multiple board；Main power board and standby power board all pass through industry
Business passage is connected with each board, and in adjacent two boards, a board is as primary board, and another board is as standby
With board, it is connected by interconnecting channels between plate between primary board with standby board, and by the face of primary board
When the link of plate interface is normal, between plate between primary board and standby board, interconnecting channels is arranged to disconnect shape
State；The method is applied to primary board, as it is shown in figure 5, mainly comprise the steps that
Step 501, utilize primary board panel interface receive need to mail to active/standby power board business datum,
And send the business datum that active/standby power board is sent via the backplane interface of primary board；
Step 502, when the link failure of panel interface by primary board being detected, by primary board with standby
Between the plate between board, interconnecting channels is set to connected state, based between the plate between primary board and standby board
Interconnecting channels performs the pretection switch between primary board and standby board so that standby plate card utilizes the face of self
Plate interface receives to be needed mail to the business datum of active/standby power board and send active/standby power board via primary board
The business datum sent of backplane interface.
In method shown in Fig. 5,
The backplane interface of primary board is simultaneously connected to by electric switch panel interface and the standby plate of primary board
The panel interface of card, using the connecting link between the panel interface of this electric switch and standby board as primary board
And interconnecting channels between the plate between standby board, and by the backplane interface of primary board normal time, by primary
Between the plate between board and standby board, interconnecting channels is set to off-state.
In method shown in Fig. 5,
Described electric switch is single-pole double-throw switch (SPDT)；
By the method that interconnecting channels between the plate between primary board and standby board is set to off-state it is: by described
The moved end of electric switch is connected to the panel interface of primary board so that the backplane interface of primary board and panel interface
The backplane interface of connection and primary board disconnects with the panel interface of standby board；
By the method that interconnecting channels between the plate between primary board and standby board is set to connected state it is: will establish by cable
The moved end closed is connected to the panel interface of standby board so that the backplane interface of primary board disconnects with panel interface
And the primary backplane interface of board connects with the panel interface of standby board.
In method shown in Fig. 5,
Detect and whether occur the method for link failure to be by the panel interface of primary board: by the face of primary board
Plate interface and the mutual connectivity testing message of opposite equip., detect the thing of panel interface by primary board simultaneously
Reason link whether fault, if not receiving the connectivity testing message of opposite equip. in Preset Time, or
The physical link failure of panel interface by primary board detected, it is determined that connect by the panel of primary board
There is link failure in mouth, otherwise, it determines there is not link failure by the panel interface of primary board.
In method shown in Fig. 5,
Described board is upper connective plate, and the panel interface of described board is the upper connecting port of uplink plate card；
Or,
Described board is business board, and the panel interface of described board is the business interface of business board.
Seeing Fig. 6, Fig. 6 is the structural representation of the protection device of board in embodiment of the present invention communication equipment, institute
State communication equipment and include main power board, standby power board and multiple board；Main power board and standby power board are equal
Being connected with each board by service channel, in adjacent two boards, a board is as primary board, another board
As standby board, it is connected by interconnecting channels between plate between primary board with standby board, and passes through main board
When the link of panel interface of card is normal, between plate between primary board and standby board, interconnecting channels is arranged to disconnected
Open state；This device is applied to primary board, as shown in Figure 6, including: Service Processing Unit 601, fault are examined
Survey unit 602, pretection switch unit 603；Wherein,
Service Processing Unit 601, needs to mail to active/standby power board for utilizing the panel interface of primary board to receive
Business datum and send the business datum that active/standby power board is sent via the backplane interface of primary board；
Fault detection unit 602, for detecting whether the panel interface by primary board occurs link failure；
Pretection switch unit 603, is detected for fault detection unit 602 and is sent out by the panel interface of primary board
During raw link failure, interconnecting channels between the plate between primary board and standby board is set to connected state, base
Between the plate between primary board and standby board, interconnecting channels performs the protection between primary board and standby board
Switch so that standby plate card utilize self panel interface receive need to mail to active/standby power board business datum,
And send the business datum that active/standby power board is sent via the backplane interface of primary board.
In Fig. 6 shown device,
Described pretection switch unit 603, for being simultaneously connected to main by the backplane interface of primary board by electric switch
With panel interface and the panel interface of standby board of board, by the panel interface of this electric switch and standby board it
Between connecting link as interconnecting channels between the plate between primary board and standby board, and by primary board
Backplane interface normal time, interconnecting channels between the plate between primary board and standby board is set to off-state.
In Fig. 6 shown device,
Described electric switch is single-pole double-throw switch (SPDT)；
Described pretection switch unit 603, is set to break by interconnecting channels between the plate between primary board and standby board
During open state, it is used for: the moved end of described electric switch is connected to the panel interface of primary board so that main board
The backplane interface of card connects with panel interface and the backplane interface of primary board is broken with the panel interface of standby board
Open；
Described pretection switch unit 603, is set to interconnecting channels between the plate between primary board and standby board even
During logical state, it is used for: the moved end of electric switch is connected to the panel interface of standby board so that primary board
Backplane interface disconnects with panel interface and the backplane interface of primary board connects with the panel interface of standby board.
In Fig. 6 shown device,
Described fault detection unit 602, when whether detection there is link failure by the panel interface of primary board,
For: by the panel interface of primary board and the mutual connectivity testing message of opposite equip., detection simultaneously is passed through
The physical link of the panel interface of primary board whether fault, if do not receive opposite equip. in Preset Time
Connectivity testing message, or the physical link failure of panel interface by primary board detected, the most really
The fixed panel interface generation link failure by primary board, otherwise, it determines by the panel interface of primary board
There is not link failure.
In Fig. 6 shown device,
Described board is upper connective plate, and the panel interface of described board is the upper connecting port of uplink plate card；
Or,
Described board is business board, and the panel interface of described board is the business interface of business board.
In view of the foregoing it is apparent that, in the present invention, the interconnection architecture between board and power board is star-like with traditional
Framework is compared, and adds interconnecting channels between the plate between adjacent board, realizes main board by interconnecting channels between plate
Pretection switch between card and standby board, it is achieved mode is simple and quick；And, with tradition by power board
Exchange chip carry out pretection switch and compare, the present invention uses the mode of electric switch to realize physical layer switching, exchange
Exchange chip perception on plate is less than the generation of switching, it is not necessary to reconfigures, can be greatly shortened switching time,
Disclosure satisfy that power matching network is less than the requirement of 5 milliseconds.
The above, only presently preferred embodiments of the present invention, it is not intended to limit protection scope of the present invention.
All within the spirit and principles in the present invention, any modification, equivalent substitution and improvement etc. made, all should comprise
Within protection scope of the present invention.
Claims (10)
1. the guard method of board in a communication equipment, it is characterised in that described communication equipment include main power board,
Standby power board and multiple board；Main power board is all connected with each board by service channel with standby power board, adjacent
In two boards, a board is as primary board, another board as standby board, primary board and standby board it
Between be connected by interconnecting channels between plate, and by the link of the panel interface of primary board normal time primary board with standby
Between the plate between board, interconnecting channels is arranged to off-state；The method is applied to primary board, including:
The panel interface utilizing primary board receives and needs to mail to the business datum of active/standby power board and send active/standby friendship
Change the business datum that plate is sent via the backplane interface of primary board；
When the link failure of panel interface by primary board being detected, by the plate between primary board and standby board
Between interconnecting channels be set to connected state, based between the plate between primary board and standby board interconnecting channels perform primary
Pretection switch between board and standby board so that standby plate card utilize the panel interface of self receive needs mail to main/
The business datum of standby power board and send the business number that active/standby power board is sent via the backplane interface of primary board
According to.
Method the most according to claim 1, it is characterised in that
The backplane interface of primary board is simultaneously connected to the panel interface of primary board and standby board by electric switch
Panel interface, by the company between backplane interface and the panel interface of standby board of the primary board connected via electric switch
Chain link road is as interconnecting channels between the plate between primary board and standby board, and in the backplane interface by primary board
Time normal, interconnecting channels between the plate between primary board and standby board is set to off-state.
Method the most according to claim 2, it is characterised in that
Described electric switch is single-pole double-throw switch (SPDT)；
By the method that interconnecting channels between the plate between primary board and standby board is set to off-state it is: by described electricity
The moved end of switch is connected to the panel interface of primary board so that the backplane interface of primary board connect with panel interface and
The backplane interface of primary board disconnects with the panel interface of standby board；
By the method that interconnecting channels between the plate between primary board and standby board is set to connected state it is: by electric switch
Moved end be connected to the panel interface of standby board so that the backplane interface of primary board disconnects and primary with panel interface
The backplane interface of board connects with the panel interface of standby board.
4. according to the method described in claim 1,2 or 3, it is characterised in that
Detect and whether occur the method for link failure to be by the panel interface of primary board: by the panel of primary board
Interface and the mutual connectivity testing message of opposite equip., detect the physical link of panel interface by primary board simultaneously
Whether fault, if not receiving the connectivity testing message of opposite equip. in Preset Time, or detects and passes through
The physical link failure of the panel interface of primary board, it is determined that by the panel interface generation link failure of primary board,
Otherwise, it determines there is not link failure by the panel interface of primary board.
5. according to the method described in claim 1,2 or 3, it is characterised in that
Described board is upper connective plate, and the panel interface of described board is the upper connecting port of uplink plate card；
Or,
Described board is business board, and the panel interface of described board is the business interface of business board.
6. the protection device of board in a communication equipment, it is characterised in that described communication equipment include main power board,
Standby power board and multiple board；Main power board is all connected with each board by service channel with standby power board, adjacent
In two boards, a board is as primary board, another board as standby board, primary board and standby board it
Between be connected by interconnecting channels between plate, and by the link of the panel interface of primary board normal time primary board with standby
Between the plate between board, interconnecting channels is arranged to off-state；This device is applied to primary board, including: at business
Reason unit, fault detection unit, pretection switch unit；
Described Service Processing Unit, needs to mail to the industry of active/standby power board for utilizing the panel interface of primary board to receive
Business data and send the business datum that active/standby power board is sent via the backplane interface of primary board；
Described fault detection unit, for detecting whether the panel interface by primary board occurs link failure；
Described pretection switch unit, detects the panel interface generation link by primary board for fault detection unit
During fault, interconnecting channels between the plate between primary board and standby board is set to connected state, based on primary board
And between the plate between standby board, interconnecting channels performs the pretection switch between primary board and standby board so that standby
Board utilizes the panel interface of self to receive to be needed to mail to the business datum of active/standby power board and sends active/standby power board
The business datum sent via the backplane interface of primary board.
Device the most according to claim 6, it is characterised in that
Described pretection switch unit, for being simultaneously connected to primary board by the backplane interface of primary board by electric switch
Panel interface and the panel interface of standby board, by the backplane interface of primary board that connects via electric switch with standby
Connecting link between the panel interface of board as interconnecting channels between the plate between primary board and standby board, and
By the backplane interface of primary board normal time, interconnecting channels between the plate between primary board and standby board is set to
Off-state.
Device the most according to claim 7, it is characterised in that
Described electric switch is single-pole double-throw switch (SPDT)；
Described pretection switch unit, is set to off-state by interconnecting channels between the plate between primary board and standby board
Time, it is used for: the moved end of described electric switch is connected to the panel interface of primary board so that the backboard of primary board connects
Mouth connects with panel interface and the backplane interface of primary board disconnects with the panel interface of standby board；
Described pretection switch unit, is set to connected state by interconnecting channels between the plate between primary board and standby board
Time, be used for: the moved end of electric switch is connected to the panel interface of standby board so that the backplane interface of primary board with
Panel interface disconnects and the backplane interface of primary board connects with the panel interface of standby board.
9. according to the device described in claim 6,7 or 8, it is characterised in that
Described fault detection unit, when whether detection occurs link failure by the panel interface of primary board, is used for:
By the panel interface of primary board and the mutual connectivity testing message of opposite equip., detect by primary board simultaneously
The physical link of panel interface whether fault, if do not receive the detection of connectivity report of opposite equip. in Preset Time
Literary composition, or the physical link failure of panel interface by primary board detected, it is determined that by the face of primary board
, otherwise, it determines there is not link failure by the panel interface of primary board in plate interface generation link failure.
10. according to the device described in claim 6,7 or 8, it is characterised in that
Described board is upper connective plate, and the panel interface of described board is the upper connecting port of uplink plate card；
Or,
Described board is business board, and the panel interface of described board is the business interface of business board.
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| CN201610200647.8A CN105871614A (en) | 2016-03-31 | 2016-03-31 | Protection method and device of board cards in communication device |
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| CN112948180A (en) * | 2021-02-28 | 2021-06-11 | 海南宝通实业公司 | Board-level hot standby method based on master control management |
| CN113612590A (en) * | 2021-08-20 | 2021-11-05 | 锐捷网络股份有限公司 | Self-adaptive adjusting method and device based on exchange board card change |
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