CN102136930B - Version upgrading method and routing equipment - Google Patents
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- CN102136930B CN102136930B CN201010271806.6A CN201010271806A CN102136930B CN 102136930 B CN102136930 B CN 102136930B CN 201010271806 A CN201010271806 A CN 201010271806A CN 102136930 B CN102136930 B CN 102136930B
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Abstract
The invention relates to a version upgrading method, which comprises that: a standby master control board acquires an upgraded master control board version, an interface board acquires an upgraded interface board version, and the standby master control board starts an upgraded interface board software version; interface board software version switching is performed on the interface board, and the upgraded interface board software version controls the hardware of the interface board; the standby master control board is switched into a main state, and serves as a new main master control board; the new main master control board generates new routing and forwarding table entries, and transmits the new routing and forwarding table entries to the interface board; and the interface board upgrades the hardware according to an upgraded interface board hardware version, and updates the new routing and forwarding table entries to the hardware. The version upgrading method and the routing equipment have the advantage that: the hardware forwarding of the interface board is not stopped in master control board version upgrading and interface board software version upgrading processes, so that the interruption time of data message forwarding in the version upgrading processes is greatly shortened.
Description
Technical field
The present invention relates to the communications field, relate in particular to a kind of version upgrading method and routing device.
Background technology
Current, the availability index request of general telecom carrier-class device can reach 0.99999, and the interrupting service time in year of its correspondence is 5 minutes.Communication equipment has the demand of changing in a large number edition upgrading because of hardware-software complexity, because changing the service outage duration that edition upgrading causes, is also in the average time for repair of breakdowns (MTTR) that will add equipment.So the service outage duration while how to reduce the upgrading number of times of equipment and edition upgrading is the problem that each equipment vendor need to solve.
Traditional patching technology mainly solves the bug finding in version, for less characteristic, also can solve by patch.But patch cannot solve large paper edition upgrade problem.
Uninterrupted upgrading service (In-Service Software Update, ISSU) upgrade technique, is mainly used in solving the uninterrupted upgrade problem of software, and the hardware adopting for current high-end communication equipment forwards, and ability is comparatively limited.Software I SSU upgrading can solve the uninterrupted upgrade problem between the different editions causing because of software change, and after hardware logic changes, this upgrading mode is helpless, generally adopts the mode that interface board is restarted to upgrade.
Also have at present a kind of upgrade technique that adopts hardware redundancy scheme to carry out, but higher to hardware and networking requirement, conventionally require two interface boards to backup each other, and requirement access side is dual-homed pattern.
Summary of the invention
One object of the present invention is for providing a kind of version upgrading method and routing device.
Technical solution of the present invention is as follows:
, be applied to comprise in the routing device of main control board, slave control board and at least one interface board, comprising:
Described slave control board obtains master control borad upgraded version, described interface board obtains interface board upgrading version, described interface board upgrading version comprises interface board software upgrading version and interface board HardwareUpgring version, the data retransmission function of the original version of interface board described in described interface board software upgrading edition compatibility;
Described slave control board starts with described master control borad upgraded version, and described interface board, in the situation that former interface board software version continues operation, starts described interface board software upgrading version;
Described interface board is carried out to the switching of interface board software version, make the hardware of interface board described in described interface board software upgrading Version Control;
After definite described interface board software version switching has completed, carry out master control borad switching, described slave control board is switched to master state, become new main control board, and described main control board is switched to non-active status;
Described new main control board carries out routing convergence, generates new route forwarding table items, and described new route forwarding table items is sent to described interface board;
Described interface board is upgraded to described hardware according to described interface board HardwareUpgring version, and described new route forwarding table items is updated to described hardware.
, comprise main control board, slave control board and at least one interface board, it is characterized in that,
Described slave control board comprises:
Master control borad upgraded version acquiring unit, for obtaining master control borad upgraded version;
Master control borad upgraded version start unit, for starting described master control borad upgraded version;
Master control board state switch unit carries out master control borad switching after having completed in definite described interface board software version switching, and described slave control board is switched to master state, becomes new main control board, and described main control board is switched to non-active status;
Route forwarding table generation unit, for switched laggard row routing convergence at described master control borad, generates new route forwarding table items;
Route forwarding table transmitting element, for being sent to described interface board by described new route forwarding table items;
Described interface board comprises:
Interface board upgrading version acquiring unit, be used for obtaining interface board upgrading version, described interface board upgrading version comprises interface board software upgrading version and interface board HardwareUpgring version, the data retransmission function of the original version of interface board described in described interface board software upgrading edition compatibility;
Interface board software upgrading version start unit, in the situation that former interface board software version continues operation, starts described interface board software upgrading version;
Described software version switch unit, for described interface board being carried out to the switching of interface board software version, makes the hardware of interface board described in described interface board software upgrading Version Control;
HardwareUpgring unit, for upgrading to described hardware according to described interface board HardwareUpgring version;
Route forwarding table items updating block, for being updated to described hardware by described new route forwarding table items.
The invention has the advantages that, the hardware that does not stop interface board in the process of carrying out master control borad edition upgrading and interface board software release upgrade forwards, and significantly reduced the break period of data message forwarding in the process of carrying out edition upgrading.
Accompanying drawing explanation
Figure 1 shows that the method flow diagram of one embodiment of the invention;
Figure 2 shows that the device schematic diagram of one embodiment of the invention.
Embodiment
Below in conjunction with the drawings and specific embodiments, the present invention is launched to describe in detail.But it is noted that these embodiment below, only for help to understand technical scheme for example, be not intended to limit the present invention.
One embodiment of the present of invention disclose a kind of version upgrading method, are applicable in a kind of routing device that comprises main control board, slave control board and at least one interface board.As shown in Figure 1, described method thes contents are as follows.
Step 1, described slave control board obtain master control borad upgraded version, and described interface board obtains interface board upgrading version.Described interface board upgrading version comprises interface board software upgrading version and interface board HardwareUpgring version.The upper layer software (applications) that described master control borad upgraded version is master control borad, the upper layer software (applications) that described interface board software upgrading version is interface board, the bottom software that described interface board HardwareUpgring version is interface board.Described upper layer software (applications) is not for to carry out mutual software with hardware, and described bottom software is for to carry out mutual software with hardware.
Preferably, the data retransmission function of the original version of interface board described in described interface board software upgrading edition compatibility.
Preferably, the original version of described master control borad upgraded version and described main control board is all supported uninterrupted business software upgrading (In-Service Software Update, ISSU).
Preferably, described main control board and described slave control board carry out information interaction, check whether described master control borad upgraded version exists and described upgraded version whether with described original version compatibility etc.
Preferably, described slave control board obtains the total AKU that comprises described master control borad upgraded version and described interface board upgrading version, and described interface board upgrading version is sent to described interface board, makes described interface board obtain described interface board upgrading version.
Step 2, described slave control board start with described master control borad upgraded version, and described interface board, in the situation that former interface board software version continues operation, starts described interface board software upgrading version.Described slave control board starts described interface board software upgrading version with described master control borad upgraded version startup and described interface board and can carry out simultaneously, also can during difference, carry out.
Step 3, described interface board is carried out to the switching of interface board software version, make the hardware of interface board described in described interface board software upgrading Version Control.
In the process of switching at described interface board software version, do not delete the former hardware forwarding table item in described interface board, described interface board still carries out the forwarding of message according to described former hardware forwarding table item.
Preferably, the data retransmission function of former software version described in described interface board software upgrading edition compatibility, the described interface board after switching can be proceeded data retransmission.
Preferably, after the described switching that completes described interface board, described former interface board software version is stopped.
Step 4, after the described switching of determining described interface board has completed, carry out the switching of master control borad, described slave control board is switched to master state, become new main control board, and described main control board switched to non-active status.
Due to described master control borad upgraded version and described original version compatibility, therefore the interface board after described software version switches can be proceeded reception and the transmission of protocol massages, the message that can be this equipment by destination address sends to described new main control board, and the described master control borad in master state can be sent to the message repeating of other equipment to described other equipment.
Step 5, described new main control board carry out routing convergence, generate new route forwarding table items, and described new route forwarding table items is sent to described interface board.
Alternatively, described new main control board carries out smooth restarting (graceful restart, GR) or uninterrupted route (Non-Stop Routing, NSR), carries out rapidly routing convergence, generates new route forwarding table items.
Alternatively, when carrying out described GR, described new main control board receives by described interface board the routing iinformation that other equipment of supporting GR send.
Alternatively, when carrying out described NSR, described new main control board is received and dispatched agreement keep-alive message by described interface board, for example, and Interior Gateway Protocol (IGP) keep-alive message or Border Gateway Protocol (BGP) keep-alive message.
Preferably, described new main control board is sent to the described new route forwarding table items generating in the storage medium of described interface board, and described storage medium is controlled by the upper layer software (applications) of described interface board.
Step 6, described interface board are upgraded to described hardware according to described interface board HardwareUpgring version.
At described interface board, complete after described HardwareUpgring, described new route forwarding table items is updated in the hardware of described interface board, so that the data message that described interface board is received carries out hardware forwarding.
Preferably, described HardwareUpgring is hardware standalone upgrade.Described hardware standalone upgrade refers to that each hardware standalone upgrade and independent control forward.
Preferably, when described hardware comprises three-state content addressing memory (Ternary Content Addressable Memory, TCAM) and carries out the hardware of special algorithm, described standalone upgrade comprises:
The hardware of described TCAM and execution special algorithm carries out respectively standalone upgrade;
Hardware forward mode is switched to and first inquires about described TCAM, when inquiry TCAM cannot realize message repeating, inquire about again the hardware of described execution special algorithm;
When the hardware of described execution special algorithm completes after standalone upgrade, hardware forward mode is switched to the hardware of the described execution special algorithm of inquiry.
In above-mentioned standalone upgrade process, because the standalone upgrade of the hardware of described execution special algorithm needs the long period.For fear of the impact of route flapping, key-course in the hardware standalone upgrade process of described execution special algorithm not by the change notification of dynamic routing, label forwarding path to hardware.
Preferably, described interface board carries out described HardwareUpgring after receiving the interface board HardwareUpgring notice of described new main control board transmission.
Preferably; described new main control board is before described interface board hardware is upgraded; for example, send described interface board HardwareUpgring notice to described interface board at described new main control board before; to described interface board, send a keep-alive message, for example, before sending described interface board HardwareUpgring notice, send a hello packet.Described new main control board re-starts after traffic forwarding at described interface board, then sends a keep-alive message to described interface board.By the transmission of described two keep-alive messages, can avoid described new main control board and described interface board that agreement occurs in the described hardware upgrade procedure of described interface board and interrupt.
One embodiment of the present of invention disclose a kind of route device that carries out edition upgrading, and described device comprises main control board, slave control board and at least one interface board.
Described slave control board comprises:
Master control borad upgraded version acquiring unit, for obtaining master control borad upgraded version;
Master control borad upgraded version start unit, for starting described master control borad upgraded version;
Master control board state switch unit carries out master control borad switching after having completed in definite described interface board software version switching, and described slave control board is switched to master state, becomes new main control board, and described main control board is switched to non-active status;
Route forwarding table generation unit, for switched laggard row routing convergence at described master control borad, generates new route forwarding table items;
Route forwarding table transmitting element, for being sent to described interface board by described new route forwarding table items.
Described interface board comprises:
Interface board upgrading version acquiring unit, for obtaining interface board upgrading version, described interface board upgrading version comprises interface board software upgrading version and interface board HardwareUpgring version;
Interface board software upgrading version start unit, in the situation that former interface board software version continues operation, starts described interface board software upgrading version;
Software version switch unit, for described interface board being carried out to the switching of interface board software version, makes the hardware of interface board described in described interface board software upgrading Version Control;
HardwareUpgring unit, for upgrading to described hardware according to described interface board HardwareUpgring version;
Route forwarding table items updating block, for being updated to described hardware by described new route forwarding table items.
The detailed process that described equipment carries out edition upgrading is as follows.
Described master control borad upgraded version acquiring unit obtains master control borad upgraded version, and described interface board upgrading version acquiring unit is got interface board upgrading version.Described interface board upgrading version comprises interface board software upgrading version and interface board HardwareUpgring version.The upper layer software (applications) that described master control borad upgraded version is master control borad, the upper layer software (applications) that described interface board software upgrading version is interface board, the bottom software that described interface board HardwareUpgring version is interface board.Described upper layer software (applications) is not for to carry out mutual software with hardware, and described bottom software is for to carry out mutual software with hardware.
Preferably, the data retransmission function of the original version of interface board described in described interface board software upgrading edition compatibility.
Preferably, the original version of described master control borad upgraded version and described main control board is all supported ISSU.
Preferably, described main control board and slave control board include version detection unit, the described version detection unit of the described version detection unit of described main control board and described slave control board carries out information interaction, check whether described master control borad upgraded version exists and described upgraded version whether with described original version compatibility etc.
Preferably, described master control borad upgraded version acquiring unit obtains the total AKU that comprises described master control borad upgraded version and described interface board upgrading version, and described interface board upgrading version is sent to described interface board, make described interface board obtain described interface board upgrading version.
Described master control borad upgraded version start unit starts described master control borad upgraded version, and described interface board software upgrading version start unit, in the situation that former interface board software version continues operation, starts described interface board software upgrading version.The startup of the startup of described master control borad upgraded version and described interface board software upgrading version can be carried out simultaneously, also can during difference, carry out.
Described software version switch unit carries out the switching of interface board software version to described interface board, makes the hardware of interface board described in described interface board software upgrading Version Control.
In the process of switching at described interface board software version, do not delete the former hardware forwarding table item in described interface board, described interface board still carries out the forwarding of message according to described former hardware forwarding table item.
Preferably, the data retransmission function of former software version described in described interface board software upgrading edition compatibility, the described interface board after switching can be proceeded data retransmission.
Preferably, after the described switching that completes described interface board, described software version switch unit stops described former interface board software version.
Described master control board state switch unit, after the described switching of determining described interface board has completed, carries out the switching of master control borad, and described slave control board is switched to master state, becomes new main control board, and described main control board is switched to non-active status.
Due to the compatible described original version of described master control borad upgraded version, therefore the interface board after described software version switches can be proceeded reception and the transmission of protocol massages, the message that can be this equipment by destination address sends to described new main control board, and the described master control borad in master state can be sent to the message repeating of other equipment to described other equipment.
Described route forwarding table generation unit carries out routing convergence, generates new route forwarding table items, and described new route forwarding table items is sent to described interface board.
Alternatively, described route forwarding table generation unit comprises that described route forwarding table generation unit comprises: smooth restarting (graceful restart, GR) subelement or uninterrupted route (Non-Stop Routing, NSR) subelement.
Described smooth restarting subelement generates new route forwarding table items for the mode with smooth restarting after described slave control board switches to described new main control board.
Described uninterrupted route subelement generates new route forwarding table items for the mode with uninterrupted route after described slave control board switches to described new main control board.
Preferably, described route forwarding table transmitting element is sent to the described new route forwarding table items generating in the storage medium of described interface board, and described storage medium is controlled by the upper layer software (applications) of described interface board.
Upgrade to described hardware according to described interface board HardwareUpgring version in described HardwareUpgring unit.
In described HardwareUpgring unit, complete after described HardwareUpgring, described route forwarding table items updating block is updated to described new route forwarding table items in the hardware of described interface board, so that the data message that described interface board is received carries out hardware forwarding.
Preferably, described slave control board also comprises interface board HardwareUpgring notification unit, for switch to described new main control board at described slave control board after, to described interface board transmission interface plate HardwareUpgring, notifies.Described interface board carries out described HardwareUpgring after receiving the interface board HardwareUpgring notice of described new main control board transmission.
Preferably, described HardwareUpgring unit is also for carrying out hardware standalone upgrade.Described hardware standalone upgrade refers to that each hardware standalone upgrade and independent control forward.
Preferably, when described hardware comprises three-state content addressing memory (Ternary Content Addressable Memory, TCAM) and while carrying out the hardware of special algorithm, TCAM and the hardware of carrying out special algorithm carry out respectively standalone upgrade described in described HardwareUpgring unit controls; Hardware forward mode is switched to and first inquires about described TCAM, when inquiry TCAM cannot realize message repeating, inquire about again the hardware of described execution special algorithm; When the hardware of described execution special algorithm completes after standalone upgrade, hardware forward mode is switched to the hardware of the described execution special algorithm of inquiry.
In above-mentioned standalone upgrade process, because the standalone upgrade of the hardware of described execution special algorithm needs the long period.For fear of the impact of route flapping, key-course in the hardware standalone upgrade process of described execution special algorithm not by the change notification of dynamic routing, label forwarding path to hardware.
Preferably; described slave control board also comprises keep-alive packet sending unit; for sending at described interface board HardwareUpgring notification unit before described interface board HardwareUpgring notice; to described interface board, send a keep-alive message, for example, before sending described interface board HardwareUpgring notice, send a hello packet.Described keep-alive packet sending unit re-starts after traffic forwarding at described interface board, then sends a keep-alive message to described interface board.By the transmission of described two keep-alive messages, can avoid the described slave control board and the described interface board that switch to described new main control board that agreement interruption occurs in the described hardware upgrade procedure of described interface board.
One of ordinary skill in the art will appreciate that: all or part of step that realizes said method embodiment can complete by the relevant hardware of program command, aforesaid program can be stored in a computer read/write memory medium, this program, when carrying out, is carried out the step that comprises said method embodiment; And aforesaid storage medium comprises: various media that can be program code stored such as ROM, RAM, magnetic disc or CDs.
The above; be only preferably embodiment of the present invention, but protection scope of the present invention is not limited to this, any people who is familiar with this technology is in the disclosed technical scope of the present invention; the variation that can expect easily or replacement, within all should being encompassed in protection scope of the present invention.
Claims (7)
1. a version upgrading method, is applied to comprise in the routing device of main control board, slave control board and at least one interface board, it is characterized in that, comprising:
Described slave control board obtains master control borad upgraded version, described interface board obtains interface board upgrading version, described interface board upgrading version comprises interface board software upgrading version and interface board HardwareUpgring version, the data retransmission function of the original version of interface board described in described interface board software upgrading edition compatibility;
Described slave control board starts with described master control borad upgraded version, and described interface board, in the situation that former interface board software version continues operation, starts described interface board software upgrading version;
Described interface board is carried out to the switching of interface board software version, make the hardware of interface board described in described interface board software upgrading Version Control;
After definite described interface board software version switching has completed, carry out master control borad switching, described slave control board is switched to master state, become new main control board, and described main control board is switched to non-active status;
Described new main control board carries out routing convergence, generates new route forwarding table items, and described new route forwarding table items is sent to described interface board;
Described interface board is upgraded to described hardware according to described interface board HardwareUpgring version, and described new route forwarding table items is updated to described hardware, wherein, described HardwareUpgring is hardware standalone upgrade, described hardware comprises the hardware of three-state content addressing memory TCAM and execution special algorithm, and described standalone upgrade comprises:
The hardware of described TCAM and described execution special algorithm carries out respectively standalone upgrade;
Hardware forward mode is switched to and first inquires about described TCAM, when the described TCAM of inquiry cannot realize message repeating, inquire about again the hardware of described execution special algorithm;
When the hardware of described execution special algorithm completes after standalone upgrade, described hardware forward mode is switched to the hardware of the described execution special algorithm of inquiry.
2. method according to claim 1, is characterized in that, in the process of switching, according to the former hardware forwarding table item in described interface board, carries out the forwarding of message at described interface board software version.
3. method according to claim 1, is characterized in that, described new main control board generates new route forwarding table items by smooth restarting or uninterrupted route.
4. method according to claim 1, is characterized in that, described interface board carries out described HardwareUpgring after receiving the interface board HardwareUpgring notice of described new main control board transmission;
Described new main control board, before sending described interface board HardwareUpgring notice, sends a keep-alive message to described interface board; Described new main control board re-starts after traffic forwarding at described interface board, then sends a keep-alive message to described interface board.
5. a routing device, comprises main control board, slave control board and at least one interface board, it is characterized in that,
Described slave control board comprises:
Master control borad upgraded version acquiring unit, for obtaining master control borad upgraded version;
Master control borad upgraded version start unit, for starting described master control borad upgraded version;
Master control board state switch unit carries out master control borad switching after having completed in definite described interface board software version switching, and described slave control board is switched to master state, becomes new main control board, and described main control board is switched to non-active status;
Route forwarding table generation unit, for switched laggard row routing convergence at described master control borad, generates new route forwarding table items;
Route forwarding table transmitting element, for being sent to described interface board by described new route forwarding table items;
Described interface board comprises:
Interface board upgrading version acquiring unit, be used for obtaining interface board upgrading version, described interface board upgrading version comprises interface board software upgrading version and interface board HardwareUpgring version, the data retransmission function of the original version of interface board described in described interface board software upgrading edition compatibility;
Interface board software upgrading version start unit, in the situation that former interface board software version continues operation, starts described interface board software upgrading version;
Described software version switch unit, for described interface board being carried out to the switching of interface board software version, makes the hardware of interface board described in described interface board software upgrading Version Control;
HardwareUpgring unit, for described hardware being upgraded according to described interface board HardwareUpgring version, described HardwareUpgring is hardware standalone upgrade, and described hardware comprises the hardware of three-state content addressing memory TCAM and execution special algorithm, and described standalone upgrade comprises:
The hardware of described TCAM and described execution special algorithm carries out respectively standalone upgrade;
Hardware forward mode is switched to and first inquires about described TCAM, when the described TCAM of inquiry cannot realize message repeating, inquire about again the hardware of described execution special algorithm;
When the hardware of described execution special algorithm completes after standalone upgrade, described hardware forward mode is switched to the hardware of the described execution special algorithm of inquiry;
Route forwarding table items updating block, for being updated to described hardware by described new route forwarding table items.
6. routing device according to claim 5, is characterized in that, described route forwarding table generation unit comprises:
Smooth restarting subelement generates new route forwarding table items for the mode with smooth restarting after described slave control board switches to described new main control board;
Or,
Uninterrupted route subelement generates new route forwarding table items for the mode with uninterrupted route after described slave control board switches to described new main control board.
7. routing device according to claim 5, is characterized in that, described slave control board also comprises:
Interface board HardwareUpgring notification unit is notified to described interface board transmission interface plate HardwareUpgring for switch to described new main control board at described slave control board after;
Keep-alive packet sending unit, for sending at described interface board HardwareUpgring notification unit before described interface board HardwareUpgring notice, sends a keep-alive message to described interface board; At described interface board, re-start after traffic forwarding, then send a keep-alive message to described interface board.
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| CN101808010B (en) * | 2010-03-30 | 2013-03-20 | 杭州华三通信技术有限公司 | Equipment management method and equipment management device and main control board |
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| WO2019179459A1 (en) * | 2018-03-23 | 2019-09-26 | 中兴通讯股份有限公司 | Method and system for verifying software version |
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