CN1889464A - Method and apparatus for realizing communication take-over and control - Google Patents
Method and apparatus for realizing communication take-over and control Download PDFInfo
- Publication number
- CN1889464A CN1889464A CNA2006100995123A CN200610099512A CN1889464A CN 1889464 A CN1889464 A CN 1889464A CN A2006100995123 A CNA2006100995123 A CN A2006100995123A CN 200610099512 A CN200610099512 A CN 200610099512A CN 1889464 A CN1889464 A CN 1889464A
- Authority
- CN
- China
- Prior art keywords
- processing unit
- message
- standby
- standby processing
- main
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Images
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L49/00—Packet switching elements
- H04L49/55—Prevention, detection or correction of errors
- H04L49/552—Prevention, detection or correction of errors by ensuring the integrity of packets received through redundant connections
Landscapes
- Engineering & Computer Science (AREA)
- Computer Security & Cryptography (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Data Exchanges In Wide-Area Networks (AREA)
Abstract
A communication receiving device is featured as receiving route protocol message from neighbor route simultaneously by master processing unit and back-up processing unit i.e. carrying out operation in parallel way by master processing unit and back-up processing unit for raising operation efficient of said device, maintaining local data by both master processing unit and back-up processing unit according to protocol message for ensuring synchronous update of local data on both master processing unit and back-up processing unit.
Description
Technical field
The present invention relates to communication technical field, be specifically related to a kind of method and device of realizing communicating by letter and taking over.
Background technology
High availability (HA:High Availability) is meant a product or system to the lasting ability of serving of client, and it identifies by MTTR mean time to repair (Mean Time to Repair) and two indexs of mean time between failures (MTBF) MTBF (Mean Time Between Failures) usually.MTTR be meant an assembly or equipment from fault to recovering normal required average time, the MTTR of broad sense relates to spare parts management and customer service, is an important indicator in the equipment maintenance contract; MTBF is meant the failure-free operation average time of an assembly or equipment, and the patient time between failures of user just is usually hour being unit.
The general high availability that adopts communication adapter scheme to realize system in the existing router.This system adopts two motherboard design, and wherein one is in running order Active Main Board (AMB), and another piece is the spare main plate (SMB) that is in Status of Backups.Active Main Board operational system software comprises Routing Protocol, routing table maintenance etc.All Routing Protocols and neighbor router are received and dispatched message mutually and are handled.Each Routing Protocol of spare main plate also starts, and carries out message and receives and handle.Active Main Board with each Routing Protocol as: Open Shortest Path First (OSPF:Open Shortest Path First), and data such as Routing Protocol backup to spare main plate.When Active Main Board lost efficacy, spare main plate taking over failing mainboard immediately became Active Main Board, and this process is called " switching ", and this reversed process also can be driven by order by operating personnel.
Router after how guaranteeing to switch has identical LSD becomes a world-famous puzzle, for addressing this problem, introduces two solutions of the prior art below:
Scheme one realizes that the method that communication is taken over is: comprising: provide to have main router with processing unit; One standby processing unit is connected to described router; To lead be connected to described standby processing unit with processing unit after, network protocol message is sent to standby processing unit from described master with processing unit, in described standby processing unit, to carry out and described main link configuration and link protocol state synchronization with processing unit; When detecting, described router is switched to described standby processing unit described main when fault being arranged in processing unit.
The main thought of this scheme is, send to the protocol massages of router, send to the main processing unit of using earlier, the master upgrades local data with processing unit according to this message and handles accordingly, the master sends described protocol massages to standby processing unit again with processing unit, and standby processing unit upgrades local data according to described message again.This scheme need be that each zone of ospf router creates two hiding interfaces: use processing unit main for one, one at standby processing unit.Main hiding interface with processing unit and standby processing unit is connected by a covert channel, handles unit backup to standby processing unit by these covert channel realization Link State data from main using.
There is certain defective in the method that above-mentioned realization communication is taken over:
1) when main LSA (LSA:Link StateAdvertisement) message of receiving a neighbor router with processing unit, replied this neighbor router and this LSA message of inundation that is not able to do in time during to standby processing unit, if this moment, the master switched with processing unit and standby processing unit, router will lose this LSA message so.If certain neighbor router must this router of switching of approach just can be connected to other parts of network, this neighbor router also will lose this LSA message so.Owing to above reason, so above-mentioned existing method reliability is lower, cause main LSD can't keep synchronous situation easily with processing unit and standby processing unit, make loss of data, systematic function descends.
2) the LSA message of all receptions all will connect with the interprocess communication (IPC:Inter-Process Communication) between processing unit and the standby processing unit through main, cause a large amount of IPC bandwidth resources occupied, systematic function is descended.
The method of prior art scheme two is provided below.This method receives message earlier and safeguards local data according to the message that receives by standby processing unit, can solve such scheme one method may be lost message in reversed process problem.
Scheme two is based on the communication adapting method of message mirror mechanism, and it depends on the message mirror mechanism that Internet protocol (IP:Internet Protocol) stack provides.The message that receives under based on message mirror mechanism is at first to arrive at standby processing unit, and standby then processing unit duplicates described message a to the main processing unit of using; The message that sends under based on message mirror mechanism is, mainly at first message sent to standby processing unit with processing unit, really sent by standby processing unit; When detecting, described router is switched to described standby processing unit described main when fault being arranged in processing unit.
Below above-mentioned existing scheme two is realized that the method that communication is taken over specifically describes:
At first, when standby processing unit started, standby processing unit was from the main processing unit batch backup Link State of using.Then, standby processing unit is by in conjunction with main clear and definite information with processing unit, and the protocol massages of transmission and the protocol massages of reception are kept and upgraded Link State.
All reception ospf protocol messages at first arrive standby processing unit, send to the main processing unit of using by standby processing unit then; All transmission ospf protocol messages at first send to standby processing unit by main with processing unit, send to adjacent ospf router by standby processing unit then.
In the process that receives and send, standby processing unit is a passive information consumer.These information are come other router in autonomous use reason unit and the network.Standby processing unit neither produces any protocol massages, does not also carry out shortest-path first algorithm (SPF:Shortest Path First) and calculates route.
Scheme two realizes that also there is certain defective in the method that communication is taken over:
1) all protocol massages all will connect transmission with the IPC between processing unit and the standby processing unit through main, have taken a large amount of IPC bandwidth resources, and systematic function is descended.
2) handle each ospf protocol message and all want some extra steps.The ospf protocol message of each reception all will be through an extra internal step from standby processing unit to main usefulness processing unit.The ospf protocol message of each transmission all will by way of one extra from main with the internal step of processing unit to standby processing unit.This reduces the efficient that sends and receive.
3) depend on IP stack or operating system message mirror mechanism is provided.And general IP stack does not provide message mirror mechanism.This makes, and to implement difficulty bigger, and to the requirement height of system, versatility is bad.
Summary of the invention
The object of the present invention is to provide a kind of method and device of realizing communicating by letter and taking over, be applied to communication technical field, this method and device can be saved a large amount of IPC bandwidth resources, make system's operation more efficient, more reliable and more stable.
To achieve the object of the present invention, the technical scheme of being taked is: a kind of method that realizes communicating by letter and take over comprises: mainly receive routing protocol packet from neighbor router synchronously with processing unit and standby processing unit; Main processing unit and the standby processing unit used is according to described message maintenance local data separately; When the master used the processing element failure, standby processing unit was taken over the main processing unit communication of using.
Preferably, described master safeguards that according to described message the process of local data separately comprises with processing unit and standby processing unit: standby processing unit is safeguarded standby processing unit local data according to described message; Standby processing unit sends the response message of receiving described message and uses processing unit to the master; The master receives described response message with processing unit, safeguards the main processing unit local data of using according to described message.
Preferably, if main receive described message with processing unit after, within preset time, do not receive the response message of receiving described message from standby processing unit, then send described message to standby processing unit and produce a warning message.
Preferably, if main with processing unit receive receive the response message of described message from standby processing unit after, within preset time, do not receive described message, then described method further comprises: main with processing unit to the described message of standby processing unit request; Standby processing unit sends described message and uses processing unit to main, and produces a warning message.
Preferably, described Routing Protocol is an OSPF Open Shortest Path First; Described message is the LSA message; Described master safeguards that according to the LSA message process of local data separately comprises with processing unit and standby processing unit: standby processing unit upgrades standby processing unit link-local slip condition database according to described LSA message; Standby processing unit sends the response message of receiving this LSA message and uses processing unit to the master; The master receives response message with processing unit, upgrades main with processing unit link-local slip condition database according to described LSA message; The operation shortest-path first algorithm calculates the optimal path that arrives the destination and according to these routing update routing tables with transmit.
Preferably, after described master receives that with processing unit standby processing unit is received the response message of this LSA message, send the response message of receiving described LSA message for described neighbor router.
Preferably, standby processing unit safeguards that according to the LSA message process of local data further comprises: for each LSA message that receives, if standby processing unit determines local router described message is carried out inundation to certain neighbor router, then standby processing unit is put into described LSA message in the re-transmission table of this neighbor router of standby processing unit local record; When standby processing unit receives from this neighbor router the response message of this LSA message, described LSA message is deleted from the re-transmission table of this neighbor router of local record.
Preferably, described Routing Protocol is an OSPF Open Shortest Path First; Described message is for connecting message; Described standby processing unit safeguards that according to connecting message the process of local data comprises: standby processing unit is safeguarded the state information of the described neighbor router of standby processing unit local record according to described connection message.
Preferably, described Routing Protocol is an OSPF Open Shortest Path First; Described message is a database description packet; Described master safeguards that according to database description packet the process of local data separately comprises with processing unit and standby processing unit: standby processing unit is safeguarded the required list of the described neighbor router of standby processing unit local record according to described database description packet; Standby processing unit sends the response message of receiving this database description packet and uses processing unit to the master; Main receive described response message, safeguard the state information of the required list of described neighbor router of local record and described neighbor router according to described database description packet and give described neighbor router transmission for this database description packet and receive the response message of this database description packet with processing unit.
Preferably, the process of the required list of the described neighbor router of the standby processing unit local record of described maintenance comprises: check whether each the LSA descriptor in this database description packet is newer than the link corresponding state advertisement in the standby processing unit LSD, if then standby processing unit is put into described LSA descriptor in the required list of this neighbor router; When standby processing unit is received described LSA descriptor link corresponding state advertisement message from described neighbor router, described LSA descriptor is deleted from the required list of described neighbor router.
Preferably, when standby processing unit started, main data with processing unit are backuped to standby processing unit, and to finish primary data synchronous.
Preferably, finish primary data synchronously after, if mainly change, then transmit described local state change information and give standby processing unit with processing unit generation local state; The local data of described standby processing unit is also safeguarded according to described localized variation information.
Preferably, described local state change information comprises: configuration variation information, Interface status change information and neighbor router state change information.
Preferably, when hardware and software failure triggered the master with the processing element failure, standby processing unit is taken over main process with the processing unit communication and comprised step: standby processing unit read in the all-network interface message from interface layer; Carry out active and standby switching, standby processing unit replaces the main processing unit of using; For any one state is not full neighbor router, and standby processing unit rebulids neighbouring relations with it; Start relevant timer; Introduce the path of other agreements and produce the LSA message that comes from local router again according to configuration; Standby processing unit operation shortest-path first algorithm calculates the optimal path that arrives at the destination and according to these routing update routing tables with transmit.
Preferably, trigger mainly when handling element failure when manually starting to switch, standby processing unit is taken over main process with the processing unit communication and comprised: standby processing unit reads in the all-network interface message from interface layer; It is full to wait for that all neighbor router states become; Carry out active and standby switching, standby processing unit replaces the main processing unit of using; Standby processing unit is used from the timer that be provided with remaining time and startup is relevant of leading the timer that obtains with processing unit; Introduce the path of other agreements and produce the LSA message that comes from local router again according to configuration; Standby processing unit operation shortest-path first algorithm calculates the optimal path that arrives at the destination and according to these routing update routing tables with transmit.
Preferably, after the time that wait is preset, if it is full to still have the neighbor router state not become; Then carry out step: carry out active and standby switching, standby processing unit replaces the main processing unit of using; For any one state is not full neighbor router, and standby processing unit rebulids neighbouring relations with it; Start relevant timer; Introduce the path of other agreements and produce the LSA message that comes from local router again according to configuration; Standby processing unit operation shortest-path first algorithm calculates the optimal path that arrives at the destination and according to these routing update routing tables with transmit.
A kind of device of realizing communicating by letter and taking over provided by the invention comprises message receiving element, main with processing unit, standby processing unit and main-slave control cell; The message receiving element is used to receive the routing protocol packet from neighbor router, and sends described message to main simultaneously with processing unit and standby processing unit; Main processing unit and the standby processing unit used is according to described message maintenance local data separately; Main-slave control cell is used to control standby processing unit and takes over main with handling unit communication.
Preferably, described main-slave control cell comprises: take over control unit, be used for when the master uses the processing element failure, control standby processing unit and take over the main processing unit communication of using; Described main-slave control cell also comprises the data backup control unit, is used to control the data that will lead with processing unit and backups to standby processing unit.
Preferably, described standby processing unit comprises: standby receiving element is used to receive the protocol massages that the message receiving element sends; The preliminary data maintenance unit is used for safeguarding local data according to the message that standby receiving element receives; The response message transmitting element is used for sending and receiving that the response message of described message is to the response message receiving element after the preliminary data maintenance unit is safeguarded local data according to the message that receives; Described master draws together with the processing unit pack: the master uses receiving element, is used to receive the protocol massages that the message receiving element sends; The response message receiving element receives the response message of receiving message that sends from the response message transmitting element; The master uses the data maintenance unit, is used for safeguarding local data according to the main message that receives with receiving element after the response message receiving element is received described response message.
Preferably, described master also comprises with processing unit: the main message retransmission unit of using, be used for after the master receives message with receiving element, when response message receiving element in preset time do not receive that the response message transmitting element sends receive the response message of described message the time, send described message to standby receiving element, and produce a warning message to the user; Described standby receiving element also is used to receive the main message of transmitting with the message retransmission unit.
Preferably, described master also comprises with processing unit: request unit, be used for after the response message receiving element is received the response message of receiving message that sends from the response message transmitting element, when main when not receiving the described message that the message receiving element sends within preset time, to the described message of standby message retransmission unit request with receiving element; Described standby processing unit also comprises: standby message retransmission unit is used for receiving the master with after the request of processing unit that the message that sends the request unit request is used receiving element to main, and produces a warning message; Described master also is used to receive the message that standby message retransmission unit is transmitted with receiving element.
Adopt technique scheme, beneficial technical effects of the present invention is:
1) the present invention uses the reception synchronously of processing unit and standby processing unit from the routing protocol packet of neighbor router by main, main mode with processing unit and standby processing unit for parallel work, avoided in the prior art, all protocol massages all will connect with the IPC between processing unit and the standby processing unit through main, it is occupied to have solved in the prior art a large amount of IPC bandwidth effectively, the problem of the wasting of resources has improved the efficient of system's operation.
2) the present invention is using the reception synchronously of processing unit and standby processing unit from the routing protocol packet of neighbor router by main, on the main basis with processing unit and standby processing unit for parallel work, after standby processing unit is safeguarded local data according to protocol massages, by sending short and small response message to the main processing unit of using, the master safeguards local data according to described protocol massages again with processing unit, can guarantee main synchronous renewal with processing unit and standby processing unit local data and consistent, make the reliability of reversed process higher.
3) the present invention does not rely on any special adaptations of IP stack or operating system, has general applicability.
Description of drawings
Also the present invention is described in further detail in conjunction with the accompanying drawings below by embodiment.
Fig. 1 is the flow chart that the embodiment of the invention one realizes the method that communication is taken over;
Fig. 2 is the flow chart that the embodiment of the invention two realizes the method that communication is taken over;
Fig. 3 is the flow chart that the embodiment of the invention three realizes the method that communication is taken over;
Fig. 4 is the flow chart that the embodiment of the invention four realizes the method that communication is taken over;
Fig. 5 does not have the flow chart that plan is switched when being the inventive method application ospf protocol;
The planned flow chart of switching when Fig. 6 is the inventive method application ospf protocol;
Fig. 7 is the structural representation that the embodiment of the invention five realizes the device that communication is taken over;
Fig. 8 is the structural representation that the embodiment of the invention six realizes the device that communication is taken over.
Embodiment
The object of the present invention is to provide a kind of method and device of realizing communicating by letter and taking over, its core concept is that the present invention passes through main processing unit and the synchronous routing protocol packet that receives from neighbor router of standby processing unit used, main mode with processing unit and standby processing unit for parallel work, avoided in the prior art, all protocol massages all will connect with the IPC between processing unit and the standby processing unit through main, it is occupied to have solved in the prior art a large amount of IPC bandwidth effectively, the problem of the wasting of resources has improved the efficient of system's operation.The present invention is simultaneously using the synchronous routing protocol packet that receives from neighbor router of processing unit and standby processing unit by the master, on the main basis with processing unit and standby processing unit for parallel work, after standby processing unit is safeguarded local data according to protocol massages, by sending short and small response message to the main processing unit of using, after the master receives described response message with processing unit, safeguard local data according to described protocol massages again, can guarantee main synchronous renewal with processing unit and standby processing unit local data and consistent.Below a kind of method and device of taking over of realizing communicating by letter provided by the invention is described in detail.
Embodiment one, a kind of method that realizes communicating by letter and take over, flow chart comprises as shown in Figure 1:
A1, main with processing unit and the synchronous routing protocol packet that receives from neighbor router of standby processing unit;
Among the present invention, it can be earlier by behind the routing protocol packet of message receiving element reception from neighbor router that described master receives routing protocol packet synchronously with processing unit and standby processing unit, send simultaneously with processing unit and standby processing unit to main in the multicast mode, the master is counted as the interior member of multicast group with processing unit and standby processing unit.
In the present embodiment, described Routing Protocol is ospf protocol, and is same, and the inventive method can also be applied to other Routing Protocols, and what this method was emphasized is the redundancy backup of realizing communication function, and concrete Routing Protocol is not construed as limiting the invention.
In the present embodiment, described message is LSA (LSA:Link State Advertisement) message, be understandable that, under the OSPF Routing Protocol, described message can also be to connect (Hello) message or database description (DD:Database Description) message or Link State request (Link StateRequest) message or Link State to reply (Link State Ack) message.
Be understandable that the present invention need will lead with the primary data of processing unit and standby processing unit synchronous in advance.Emphasize that herein the master had identical local data with standby processing unit with processing unit before the protocol massages that receives synchronously from neighbor router.The main synchronously local data with processing unit and standby processing unit of the present invention can be that operating personnel carry out synchronously in advance, be understandable that, synchronous mode can also be when standby processing unit starts, and main batch data with processing unit is backuped to standby processing unit.
Wherein, main is software or the hardware module that the route protocol massages is had the same treatment ability with processing unit and standby processing unit.Described synchronous local data can comprise that configuration information, interface message, neighbor router state information and link-state information etc. are used for the data of route control.
A2, main processing unit and the standby processing unit used is according to described message maintenance local data separately;
Main is that described message loaded information is analyzed with processing unit and standby processing unit to the maintenance of local data, according to the result who analyzes local data is safeguarded, for example: safeguard link-local slip condition database, neighbor router state or required list etc.
A3, when the master used the processing element failure, standby processing unit was taken over the main processing unit communication of using.
Among the present invention, described main inefficacy with processing unit is triggered or is manually started by hardware and software failure to switch and triggers or preset certain hour regularly triggering at interval.
In the present embodiment, described standby processing unit is taken over main reversed process with the processing unit communication can adopt the existing conventional implementation, is not giving unnecessary details herein.
Embodiment one sends protocol massages to main with processing unit and standby processing unit simultaneously by the message receiving element, main mode with processing unit and standby processing unit for parallel work, avoided in the prior art, all protocol massages all will connect with the IPC between processing unit and the standby processing unit through main, it is occupied to have solved in the prior art a large amount of IPC bandwidth effectively, the problem of the wasting of resources has improved the efficient of system's operation.
Embodiment two, a kind of method that realizes communicating by letter and take over, flow chart comprises as shown in Figure 2:
B1, main with processing unit and the synchronous LSA message that receives from neighbor router of standby processing unit;
In the present embodiment, the message of reception is the LSA message under the OSPF Routing Protocol.
B2, standby processing unit upgrades standby processing unit link-local slip condition database according to described LSA message;
B3, standby processing unit send the response message of receiving this LSA message and use processing unit to the master;
B4 main receives response message from standby processing unit with processing unit;
B5, main main according to described LSA message renewal with processing unit link-local slip condition database with processing unit;
B6, main response message from processing unit to described neighbor router transmission that receive described LSA message with;
B7, the main optimal path that goes out to arrive at the destination with processing unit operation SPF algorithm computation and according to these routing update routing tables with transmit;
B8, when the master used the processing element failure, standby processing unit was taken over the main processing unit communication of using.
In the present embodiment, step B5 and step B4 and step B7 and step B4 there is no absolute time sequencing.Concrete execution sequence can not be interpreted as limitation of the present invention.Emphasize herein be step B6 after step B4 and step B5, just mainly send the response message of receiving this LSA message to neighbor router again after receiving this LSA message and receive the response message of receiving this LSA message that standby processing unit sends with processing unit.Its objective is guarantee main all receive the message that neighbor router sends over processing unit and standby processing unit after again transmission reply.In having the network of retransmission mechanism,, can send described LSA message once more if neighbor router is not received described response message.
Embodiment two is with the difference of embodiment one, send protocol massages to main with processing unit and standby processing unit simultaneously at the message receiving element, on the main basis with processing unit and standby processing unit for parallel work, after standby processing unit is received protocol massages, by sending short and small response message to the main processing unit of using, can guarantee main synchronous renewal, make the reliability of reversed process higher with processing unit and standby processing unit local data.
For each LSA message that receives, if standby processing unit is determined local router described message is carried out inundation to certain neighbor router, then standby processing unit is put into described LSA message in the re-transmission table of this neighbor router of local record; When standby processing unit receives from this neighbor router the response message of this LSA message, described LSA message is deleted from the re-transmission table of this neighbor router of local record.
Embodiment three, a kind of method that realizes communicating by letter and take over, flow chart comprises as shown in Figure 3:
C1, main with processing unit and the synchronous hello packet that receives from neighbor router of standby processing unit;
In the present embodiment, the message of reception is the hello packet under the OSPF Routing Protocol;
C2, standby processing unit safeguard the state information of the described neighbor router of standby processing unit local record according to described hello packet;
The present invention uses ospf protocol, and the state of neighbor router comprises:
(Down) state of shutdown, attempt (Attempt) state, initial (Init) state, two-way (2-way) state, exchange beginning (ExStart) state, exchange (Exchange) state, loading (Loading) state, full (Full) state.
C3, the main state information of using the described neighbor router of processing unit local record with processing unit according to described hello packet maintenance master;
C4, when the master used the processing element failure, standby processing unit was taken over the main processing unit communication of using.
Among the present invention, described main inefficacy with processing unit can be triggered or manually start to switch and trigger or preset certain hour regularly triggering at interval by hardware and software failure.
Embodiment three is the present invention's processing modes to hello packet, standby processing unit is if handle hello packet, then need to move the Hello timer and the Dead timer of relevant neighbor router, the content of the hello packet by receiving neighbor router and the time interval and Interface status change the state of the determining neighbor router line item of going forward side by side.What present embodiment was emphasized is the disposal ability of standby processing unit for hello packet, is understandable that, step C2 and step C3 there is no absolute order.Also can carry out step C3 earlier, after carry out step C2, the sequencing of concrete steps is not construed as limiting the invention.
Embodiment four, a kind of method that realizes communicating by letter and take over, flow chart comprises as shown in Figure 4:
D1, main with processing unit and the synchronous Data Description (DD) packet that receives from neighbor router of standby processing unit;
In the present embodiment, the message of reception is the Data Description (DD) packet under the OSPF Routing Protocol.
D2, standby processing unit safeguard the required list of described neighbor router of standby processing unit local record and the state information of this neighbor router according to described Data Description (DD) packet;
Standby processing unit safeguards that the process of the required list of described neighbor router is: LSA corresponding in each the LSA descriptor in the Data Description (DD) packet and the standby processing unit LSD is compared; If described LSA descriptor is newer than LSA corresponding in the LSD, then standby processing unit is put into described LSA descriptor in the required list of this neighbor router; When standby processing unit is received LSA message from the described LSA descriptor correspondence of described neighbor router, described LSA descriptor is deleted from the required list of described neighbor router.
D3, standby processing unit send the response message of receiving this Data Description (DD) packet and use processing unit to the master;
D4 main receives response message from standby processing unit with processing unit;
D5 main safeguards the required list of main described neighbor router with the processing unit local record and the state information of this neighbor router with processing unit according to described Data Description (DD) packet;
D6, the main response message of receiving this database description packet with processing unit for this database description packet to described neighbor router transmission;
D7, when the master used the processing element failure, standby processing unit was taken over the main processing unit communication of using.
What the embodiment limbs were existing is the processing mode of the present invention to Data Description (DD) packet, and the processing of Data Description (DD) packet is made that to unreceived Data Description (DD) packet, neighbor router will retransmit, and make the reversed process of seamless process more perfect after realizing switching.
Embodiment three and embodiment four safeguard the state information of the neighbor router of local record according to hello packet and Data Description (DD) packet.Be understandable that, the mode that standby processing unit obtains the neighbor router state information can also adopt when the master changes with processing unit judges neighbor router state, then connect with the IPC between processing unit and the standby processing unit, give standby processing unit the status change notification of neighbor router by main.The standby processing unit of this kind mode can not move relevant timer, but will take many slightly IPC bandwidth resources.Specifically how to realize that the technical staff can select processing mode voluntarily according to the actual conditions of system.
Two to embodiment four couples of the present invention of the foregoing description use ospf protocol, and the processing mode of LSA message, hello packet and Data Description (DD) packet under the ospf protocol is described.The processing mode of LSA message and Data Description (DD) packet compared with the conventional treatment flow process to have increased from standby processing unit send the response message of receiving LSA message and Data Description (DD) packet, purpose is to make the main message of receiving with processing unit and standby processing unit basis upgrade local data and they are consistent, and is ready for switching.
In order to improve the present invention program more, after if the master receives the LSA message and Data Description (DD) packet of message receiving element multicast with processing unit, within preset time, do not receive when receiving the fortuitous event of response message of described message from standby processing unit, main then send described message to standby processing unit and produce a warning message by main with the IPC between processing unit and the standby processing unit with processing unit, it is undesired to point out the standby processing unit of user to move.
If the master receives the response message of receiving described LSA message and Data Description (DD) packet from standby processing unit with processing unit, and does not receive described message within preset time, then the master uses processing unit to the described message of standby processing unit request; Standby processing unit receives main with after the request of processing unit, by main the connection sending described message to the main processing unit of using with the IPC between processing unit and the standby processing unit, and producing a warning message, it is undesired that prompting may move with householder's use reason unit.
In the foregoing description two to embodiment four, finishing primary data with processing unit and standby processing unit by batch data backup or alternate manner the master changes with processing unit generation local state as if the master back synchronously, then transmit described local state change information and give standby processing unit, the local data of described standby processing unit is also safeguarded according to described local state change information.
Described local state change information comprises: mainboard configuration variation information, Interface status change information and neighbor router state change information.When leading with processing unit generation configuration variation or Interface status variation or neighbor router state variation, by main the connection sending local state change information to standby processing unit with the IPC between processing unit and the standby processing unit, standby processing unit is safeguarded local data according to described local state change information, is consistent with assurance and main data with processing unit.Because it is relatively low and amount of information is less that described local state changes probability of happening, so take very for a short time for the IPC bandwidth resources, the user needn't worry the occupied too much problem of IPC bandwidth.
Standby processing unit is taken over main being called with the process of handling unit communication and is switched, switchover mode of the present invention can be divided into unplanned switching with planned to be switched, and described unplanned switching with planned switched in the reversed process that can be applied to the foregoing description two to embodiment four.
See also Fig. 5, do not have the flow chart that plan is switched when being the inventive method application ospf protocol, comprising:
R1, standby processing unit reads in the all-network interface message from interface layer;
R2 carries out active and standby switching, and standby processing unit replaces the main processing unit of using;
Active and standby switching herein is meant the main interface with processing unit of standby processing unit adapter.
R3 is not the neighbor router of Full for any one state, and standby processing unit rebulids neighbouring relations with it;
In the present embodiment, rebulid neighbouring relations and begin to set up from the Down state.Be understandable that, if before switching, standby processing unit is done processing among the embodiment four to Data Description (DD) packet, then rebulid herein neighbouring relations mode can also for: for any one state for full and be not that the neighbor router of Exchange, standby processing unit follow the state of its preservation and set up neighbouring relations; For the neighbor router of any one state, begin to set up neighbouring relations from the ExStart state for exchange.This makes the reversed process of seamless process faster.Specifically how to realize that the technical staff can select processing mode voluntarily according to the actual conditions of system, concrete processing mode becomes limitation of the present invention inadequately.
R4 starts relevant timer;
The timer of described startup comprises Hello timer, Dead timer and LSA retransmission timer.
R5 introduces the path of other agreements and produces the LSA message that comes from local router again according to configuration;
R6, the optimal path that standby processing unit operation SPF algorithm computation goes out to arrive at the destination and according to these routing update routing tables with transmit.
Unplanned switch generally trigger at hardware and software failure main with handling element failure, main with processing unit can't operate as normal situation.
See also Fig. 6, the planned flow chart of switching when being the inventive method application ospf protocol comprises:
S1, standby processing unit reads in the all-network interface message from interface layer;
S2, the master waits for that with processing unit and standby processing unit all neighbor router states become Full;
Be understandable that, if main with processing unit or standby processing unit after the time that wait is preset, all neighbor router states still can not become Full, and the step that then can adopt similar no plan to switch is switched, detailed process with reference to Fig. 6 step r2 to step r6.
S3 carries out active and standby switching, and standby processing unit replaces the main processing unit of using.
S4, standby processing unit use from the timer that be provided with remaining time and startup is relevant of leading the timer that obtains with processing unit;
S5 introduces the path of other agreements and produces the LSA message that comes from local router again according to configuration;
S6, the optimal path that standby processing unit operation SPF algorithm computation goes out to arrive at the destination and according to these routing update routing tables with transmit.
Planned switch generally at main with processing unit can the situation of operate as normal under, artificially execution is switched the triggering master and is preset the situation of timing triggering master in certain hour interval with the processing element failure with handling element failure or user, can make standby processing unit adapter master use the process of processing unit more level and smooth.
Be understandable that, above-mentioned unplanned switch with planned reversed process in, there is no absolute time sequencing between each step, even some steps can be carried out simultaneously, as long as satisfy the demand of switching, concrete execution sequence can not be interpreted as limitation of the present invention.
Embodiment five, a kind of device of realizing communicating by letter and taking over, structure drawing of device as shown in Figure 7, comprise message receiving element 100, main, described main-slave control cell 400: comprise data backup control unit 410 and take over control unit 420 with processing unit 200, standby processing unit 300 and main-slave control cell 400.
Data backup control unit 410 is used for when standby processing unit 300 starts, and the data that control will be led with processing unit 200 backup to standby processing unit 300.
In the present embodiment, described message receiving element 100 sends message with the multicast form, the member the when master is counted as with processing unit 200 and standby processing unit 300 in the multicast group.
Main with processing unit 200, be used to provide the primary circuit routing function of router; After the master receives the routing protocol packet of message receiving element 100 multicasts with processing unit, safeguard main local data with processing unit 200 according to described message.
Take over control unit 420, be used for when the master was lost efficacy with processing unit 200, control standby processing unit 300 and take over main processing unit 200 communications of using.
Embodiment six, a kind of device of realizing communicating by letter and taking over, structure drawing of device as shown in Figure 8, comprise that message receiving element 100, master comprise with processing unit 200 with processing unit 200, standby processing unit 300 and main-slave control cell 400, described master: the master uses message retransmission unit 240 and request unit 250 with receiving element 210, master with data maintenance unit 220, response message receiving element 230, master; Described standby processing unit 300 comprises: standby receiving element 310, preliminary data maintenance unit 320, response message transmitting element 330 and standby message retransmission unit 340.
Describing in detail to each unit below.
Preliminary data maintenance unit 320 is used for safeguarding local data according to the message that standby receiving element 310 receives;
Response message transmitting element 330 is used for sending and receiving that the response message of described message is to response message receiving element 230 after preliminary data maintenance unit 320 is safeguarded local data according to the message that receives;
Main with receiving element 210, be used to receive the protocol massages that message receiving element 100 sends; Also be used to receive the message that standby message retransmission unit 340 is transmitted.
Main with data maintenance unit 220, be used for after response message receiving element 230 is received described response message, safeguarding local data according to the main message that receives with receiving element 210;
Response message receiving element 230 receives the response message of receiving message that sends from response message transmitting element 320;
Main with message retransmission unit 240, be used for after the master receives message with receiving element 210, when response message receiving element 230 in preset time do not receive that response message transmitting element 330 sends receive the response message of described message the time, send described message to standby receiving element 310, and produce a warning message to the user.
Standby message retransmission unit 340 is used for receiving the master with after the request of processing unit that the message that sends request unit 250 requests is used receiving element 210 to main, and produces a warning message.
More than a kind of method and device of taking over of realizing communicating by letter provided by the present invention is described in detail, used instantiation herein principle of the present invention and execution mode are set forth, the explanation of above embodiment just is used for helping to understand method of the present invention and core concept thereof; Simultaneously, for one of ordinary skill in the art, according to thought of the present invention, the part that all can change in specific embodiments and applications, in sum, this description should not be construed as limitation of the present invention.
Claims (21)
1. a method that realizes communicating by letter and taking over is characterized in that, comprising:
Main with processing unit and the synchronous routing protocol packet that receives from neighbor router of standby processing unit;
Main processing unit and the standby processing unit used is according to described message maintenance local data separately;
When the master used the processing element failure, standby processing unit was taken over the main processing unit communication of using.
2. the method that realization communication as claimed in claim 1 is taken over is characterized in that,
Described master safeguards that according to described message the process of local data separately comprises with processing unit and standby processing unit:
Standby processing unit is safeguarded standby processing unit local data according to described message;
Standby processing unit sends the response message of receiving described message and uses processing unit to the master;
The master receives described response message with processing unit, safeguards the main processing unit local data of using according to described message.
3. the method that realization communication as claimed in claim 2 is taken over, it is characterized in that, further comprise: if after the master receives described message with processing unit, within preset time, do not receive the response message of receiving described message from standby processing unit, then send described message to standby processing unit and produce a warning message.
4. the method that realization communication as claimed in claim 2 is taken over is characterized in that, if main with processing unit receive receive the response message of described message from standby processing unit after, within preset time, do not receive described message, then described method further comprises:
The main processing unit of using is to the described message of standby processing unit request;
Standby processing unit sends described message and uses processing unit to main, and produces a warning message.
5. the method that realization communication as claimed in claim 1 is taken over is characterized in that described Routing Protocol is an OSPF Open Shortest Path First; Described message is the LSA message;
Described master safeguards that according to the LSA message process of local data separately comprises with processing unit and standby processing unit:
Standby processing unit upgrades standby processing unit link-local slip condition database according to described LSA message;
Standby processing unit sends the response message of receiving this LSA message and uses processing unit to the master;
The master receives response message with processing unit, upgrades main with processing unit link-local slip condition database according to described LSA message; The operation shortest-path first algorithm calculates the optimal path that arrives the destination and according to these routing update routing tables with transmit.
6. the method that realization communication as claimed in claim 5 is taken over, it is characterized in that, after described master receives that with processing unit standby processing unit is received the response message of this LSA message, send the response message of receiving described LSA message for described neighbor router.
7. the method that realization communication as claimed in claim 5 is taken over, it is characterized in that, standby processing unit safeguards that according to the LSA message process of local data further comprises: for each LSA message that receives, if standby processing unit determines local router described message is carried out inundation to certain neighbor router, then standby processing unit is put into described LSA message in the re-transmission table of this neighbor router of standby processing unit local record; When standby processing unit receives from this neighbor router the response message of this LSA message, described LSA message is deleted from the re-transmission table of this neighbor router of local record.
8. the method that realization communication as claimed in claim 1 is taken over is characterized in that described Routing Protocol is an OSPF Open Shortest Path First; Described message is for connecting message;
Described standby processing unit safeguards that according to connecting message the process of local data comprises:
Standby processing unit is safeguarded the state information of the described neighbor router of standby processing unit local record according to described connection message.
9. the method that realization communication as claimed in claim 1 is taken over is characterized in that described Routing Protocol is an OSPF Open Shortest Path First; Described message is a database description packet;
Described master safeguards that according to database description packet the process of local data separately comprises with processing unit and standby processing unit:
Standby processing unit is safeguarded the required list of the described neighbor router of standby processing unit local record according to described database description packet;
Standby processing unit sends the response message of receiving this database description packet and uses processing unit to the master;
Main receive described response message, safeguard the state information of the required list of described neighbor router of local record and described neighbor router according to described database description packet and give described neighbor router transmission for this database description packet and receive the response message of this database description packet with processing unit.
10. the method that realization communication as claimed in claim 9 is taken over is characterized in that the process of the required list of the described neighbor router of the standby processing unit local record of described maintenance comprises:
Check whether each the LSA descriptor in this database description packet is newer than the link corresponding state advertisement in the standby processing unit LSD, if then standby processing unit is put into described LSA descriptor in the required list of this neighbor router; When standby processing unit is received described LSA descriptor link corresponding state advertisement message from described neighbor router, described LSA descriptor is deleted from the required list of described neighbor router.
11. the method that realization communication as claimed in claim 1 is taken over is characterized in that, when standby processing unit started, main data with processing unit are backuped to standby processing unit, and to finish primary data synchronous.
12. the method that realization communication as claimed in claim 11 is taken over is characterized in that, finish primary data synchronously after, if mainly change, then transmit described local state change information and give standby processing unit with processing unit generation local state; The local data of described standby processing unit is also safeguarded according to described localized variation information.
13. the method that realization communication as claimed in claim 12 is taken over is characterized in that described local state change information comprises: configuration variation information, Interface status change information and neighbor router state change information.
14., it is characterized in that when hardware and software failure triggered the master with the processing element failure, standby processing unit was taken over main process with the processing unit communication and comprised step as any method that described realization communication is taken over of claim 5 to 10:
Standby processing unit reads in the all-network interface message from interface layer;
Carry out active and standby switching, standby processing unit replaces the main processing unit of using;
For any one state is not full neighbor router, and standby processing unit rebulids neighbouring relations with it;
Start relevant timer;
Introduce the path of other agreements and produce the LSA message that comes from local router again according to configuration;
Standby processing unit operation shortest-path first algorithm calculates the optimal path that arrives at the destination and according to these routing update routing tables with transmit.
15. the method that any described realization communication is taken over as claim 5 to 10 is characterized in that, triggers mainly when handling element failure when manually starting to switch, standby processing unit is taken over main process with the processing unit communication and is comprised:
Standby processing unit reads in the all-network interface message from interface layer;
It is full to wait for that all neighbor router states become;
Carry out active and standby switching, standby processing unit replaces the main processing unit of using;
Standby processing unit is used from the timer that be provided with remaining time and startup is relevant of leading the timer that obtains with processing unit;
Introduce the path of other agreements and produce the LSA message that comes from local router again according to configuration;
Standby processing unit operation shortest-path first algorithm calculates the optimal path that arrives at the destination and according to these routing update routing tables with transmit.
16. the method that realization communication as claimed in claim 15 is taken over is characterized in that,
After the time that wait is preset, if it is full to still have the neighbor router state not become; Then carry out step:
Carry out active and standby switching, standby processing unit replaces the main processing unit of using;
For any one state is not full neighbor router, and standby processing unit rebulids neighbouring relations with it;
Start relevant timer;
Introduce the path of other agreements and produce the LSA message that comes from local router again according to configuration;
Standby processing unit operation shortest-path first algorithm calculates the optimal path that arrives at the destination and according to these routing update routing tables with transmit.
17. a device of realizing communicating by letter and taking over comprises message receiving element, main with processing unit, standby processing unit and main-slave control cell, it is characterized in that:
The message receiving element is used to receive the routing protocol packet from neighbor router, and sends described message to main simultaneously with processing unit and standby processing unit;
Main processing unit and the standby processing unit used is according to described message maintenance local data separately;
Main-slave control cell is used to control standby processing unit and takes over main with handling unit communication.
18. the device that realization communication as claimed in claim 17 is taken over is characterized in that described main-slave control cell comprises: take over control unit, be used for when the master uses the processing element failure, control standby processing unit and take over the main processing unit communication of using;
Described main-slave control cell also comprises the data backup control unit, is used to control the data that will lead with processing unit and backups to standby processing unit.
19. the device that realization communication as claimed in claim 17 is taken over is characterized in that,
Described standby processing unit comprises:
Standby receiving element is used to receive the protocol massages that the message receiving element sends;
The preliminary data maintenance unit is used for safeguarding local data according to the message that standby receiving element receives;
The response message transmitting element is used for sending and receiving that the response message of described message is to the response message receiving element after the preliminary data maintenance unit is safeguarded local data according to the message that receives;
Described master draws together with the processing unit pack:
The master uses receiving element, is used to receive the protocol massages that the message receiving element sends;
The response message receiving element receives the response message of receiving message that sends from the response message transmitting element;
The master uses the data maintenance unit, is used for safeguarding local data according to the main message that receives with receiving element after the response message receiving element is received described response message.
20. the device that realization communication as claimed in claim 19 is taken over is characterized in that described master also comprises with processing unit:
The main message retransmission unit of using, be used for after the master receives message with receiving element, when response message receiving element in preset time do not receive that the response message transmitting element sends receive the response message of described message the time, send described message to standby receiving element, and produce a warning message to the user;
Described standby receiving element also is used to receive the main message of transmitting with the message retransmission unit.
21. the device as claim 19 or 20 described realization communications adapters is characterized in that,
Described master also comprises with processing unit:
Request unit, be used for after the response message receiving element is received the response message of receiving message that sends from the response message transmitting element, when main when not receiving the described message that the message receiving element sends within preset time, to the described message of standby message retransmission unit request with receiving element;
Described standby processing unit also comprises:
Standby message retransmission unit is used for receiving the master with after the request of processing unit that the message that sends the request unit request is used receiving element to main, and produces a warning message;
Described master also is used to receive the message that standby message retransmission unit is transmitted with receiving element.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2006100995123A CN100420207C (en) | 2006-07-26 | 2006-07-26 | Method and apparatus for realizing communication take-over and control |
| PCT/CN2007/070199 WO2008014696A1 (en) | 2006-07-26 | 2007-06-28 | Method and apparatus for realizing communication take-over |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2006100995123A CN100420207C (en) | 2006-07-26 | 2006-07-26 | Method and apparatus for realizing communication take-over and control |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1889464A true CN1889464A (en) | 2007-01-03 |
| CN100420207C CN100420207C (en) | 2008-09-17 |
Family
ID=37578724
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2006100995123A Expired - Fee Related CN100420207C (en) | 2006-07-26 | 2006-07-26 | Method and apparatus for realizing communication take-over and control |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN100420207C (en) |
| WO (1) | WO2008014696A1 (en) |
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101980484A (en) * | 2010-10-14 | 2011-02-23 | 中兴通讯股份有限公司 | Method and system for realizing full protection of routers |
| CN102223304A (en) * | 2011-06-16 | 2011-10-19 | 杭州华三通信技术有限公司 | Method and device for continuously forwarding after main/standby switch |
| CN102571379A (en) * | 2010-12-14 | 2012-07-11 | 中兴通讯股份有限公司 | Method and device for main and standby protection of packet transport networking equipment |
| CN103200109A (en) * | 2013-03-22 | 2013-07-10 | 杭州华三通信技术有限公司 | Method and device for OSPF neighboring node management |
| CN105591951A (en) * | 2015-10-15 | 2016-05-18 | 杭州华三通信技术有限公司 | BGP message processing method and device of stack system |
| CN105939295A (en) * | 2015-11-16 | 2016-09-14 | 杭州迪普科技有限公司 | Network protocol state synchronization method and network protocol state synchronization device |
| CN109218206A (en) * | 2018-09-04 | 2019-01-15 | 杭州迪普科技股份有限公司 | A kind of method and apparatus limiting Link State Notification quantity |
| CN111684428A (en) * | 2018-02-12 | 2020-09-18 | 华为技术有限公司 | Superscale clouded N-route protection |
| CN111740914A (en) * | 2020-06-18 | 2020-10-02 | 深圳市信锐网科技术有限公司 | OSPF protocol message distributed processing method, system and related equipment |
| CN112615751A (en) * | 2020-12-29 | 2021-04-06 | 北京格林威尔科技发展有限公司 | Main/standby switching hot backup method and device based on routing protocol |
| CN113765781A (en) * | 2020-06-04 | 2021-12-07 | 华为技术有限公司 | Method, communication device, storage medium and system for processing routing message |
| WO2023273945A1 (en) * | 2021-06-29 | 2023-01-05 | 中兴通讯股份有限公司 | Protocol high availability protection system and protection method |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6112315A (en) * | 1997-09-24 | 2000-08-29 | Nortel Networks Corporation | Process and apparatus for reducing software failures using sparing in distributed systems |
| CN1299438C (en) * | 2002-11-02 | 2007-02-07 | 华为技术有限公司 | Method of realizing single plate main and ready change over and its circuit |
| CN1286303C (en) * | 2003-02-26 | 2006-11-22 | 华为技术有限公司 | Backup method for Ethernet port connected to Internet protocol network |
| CN100454955C (en) * | 2003-04-11 | 2009-01-21 | 华为技术有限公司 | Stand-by of IP telephone route and recovery method |
| CN100539509C (en) * | 2003-10-16 | 2009-09-09 | 华为技术有限公司 | Masterslave switchover implementation method towards high-end switch |
| CN100461646C (en) * | 2004-08-27 | 2009-02-11 | 华为技术有限公司 | Method for negat main spare board in communication equipment |
| CN100426692C (en) * | 2004-11-15 | 2008-10-15 | 中兴通讯股份有限公司 | Communication device host-standby switching protocol processing software synchronizing method |
| CN100382452C (en) * | 2005-11-15 | 2008-04-16 | 中兴通讯股份有限公司 | Device and method for realizing ASC |
-
2006
- 2006-07-26 CN CNB2006100995123A patent/CN100420207C/en not_active Expired - Fee Related
-
2007
- 2007-06-28 WO PCT/CN2007/070199 patent/WO2008014696A1/en active Application Filing
Cited By (23)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2012048574A1 (en) * | 2010-10-14 | 2012-04-19 | 中兴通讯股份有限公司 | Method and system for realizing router full protection |
| CN101980484B (en) * | 2010-10-14 | 2016-02-10 | 中兴通讯股份有限公司 | A kind of method and system realizing router full guard |
| CN101980484A (en) * | 2010-10-14 | 2011-02-23 | 中兴通讯股份有限公司 | Method and system for realizing full protection of routers |
| CN102571379A (en) * | 2010-12-14 | 2012-07-11 | 中兴通讯股份有限公司 | Method and device for main and standby protection of packet transport networking equipment |
| CN102223304A (en) * | 2011-06-16 | 2011-10-19 | 杭州华三通信技术有限公司 | Method and device for continuously forwarding after main/standby switch |
| CN102223304B (en) * | 2011-06-16 | 2014-08-27 | 杭州华三通信技术有限公司 | Method and device for continuously forwarding after main/standby switch |
| US8824275B2 (en) | 2011-06-16 | 2014-09-02 | Hangzhou H3C Technologies Co., Ltd. | Route calculating after switching occurs from a primary main control board to a standby main control board |
| CN103200109A (en) * | 2013-03-22 | 2013-07-10 | 杭州华三通信技术有限公司 | Method and device for OSPF neighboring node management |
| CN103200109B (en) * | 2013-03-22 | 2016-06-29 | 杭州华三通信技术有限公司 | A kind of ospf neighbor relationship management method and equipment |
| CN105591951B (en) * | 2015-10-15 | 2018-11-09 | 新华三技术有限公司 | The BGP message processing methods and device of pile system |
| CN105591951A (en) * | 2015-10-15 | 2016-05-18 | 杭州华三通信技术有限公司 | BGP message processing method and device of stack system |
| CN105939295A (en) * | 2015-11-16 | 2016-09-14 | 杭州迪普科技有限公司 | Network protocol state synchronization method and network protocol state synchronization device |
| CN111684428A (en) * | 2018-02-12 | 2020-09-18 | 华为技术有限公司 | Superscale clouded N-route protection |
| CN111684428B (en) * | 2018-02-12 | 2023-09-12 | 华为技术有限公司 | Super-scale clouding N-route protection |
| CN109218206A (en) * | 2018-09-04 | 2019-01-15 | 杭州迪普科技股份有限公司 | A kind of method and apparatus limiting Link State Notification quantity |
| CN109218206B (en) * | 2018-09-04 | 2021-03-23 | 杭州迪普科技股份有限公司 | Method and device for limiting link state advertisement quantity |
| CN113765781A (en) * | 2020-06-04 | 2021-12-07 | 华为技术有限公司 | Method, communication device, storage medium and system for processing routing message |
| WO2021244588A1 (en) * | 2020-06-04 | 2021-12-09 | 华为技术有限公司 | Method for processing routing message, communication device, storage medium, and system |
| CN113765781B (en) * | 2020-06-04 | 2022-07-12 | 华为技术有限公司 | Method, communication device, storage medium and system for processing routing message |
| CN111740914A (en) * | 2020-06-18 | 2020-10-02 | 深圳市信锐网科技术有限公司 | OSPF protocol message distributed processing method, system and related equipment |
| CN111740914B (en) * | 2020-06-18 | 2022-11-22 | 深圳市信锐网科技术有限公司 | OSPF protocol message distributed processing method, system and related equipment |
| CN112615751A (en) * | 2020-12-29 | 2021-04-06 | 北京格林威尔科技发展有限公司 | Main/standby switching hot backup method and device based on routing protocol |
| WO2023273945A1 (en) * | 2021-06-29 | 2023-01-05 | 中兴通讯股份有限公司 | Protocol high availability protection system and protection method |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2008014696A1 (en) | 2008-02-07 |
| CN100420207C (en) | 2008-09-17 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN1889464A (en) | Method and apparatus for realizing communication take-over and control | |
| CN1921369A (en) | Adapting method for network connection | |
| CN1249576C (en) | System and method for request assembling and load sharing | |
| CN1633647A (en) | System, method, and product for managing data transfers in a network | |
| CN1946058A (en) | Soft exchange device allopatric disaster recovery solution system and its method for software exchange network | |
| CN101043301A (en) | Data rearrangement and recombination method in wireless communication system and its base station | |
| CN1943206A (en) | System and method for maximizing connectivity during network failures in a cluster system | |
| CN1893424A (en) | Method for realizing warning management adopting affirming mechanism under SNMP protocol | |
| CN1655550A (en) | System and method for trivial file transfer protocol including broadcasting function | |
| CN1783880A (en) | Softrouter dynamic binding protocol | |
| CN1084102C (en) | Method of consistent message transmission | |
| CN1788475A (en) | Network attack combating method, network attack combating device and network attack combating program | |
| CN1248453C (en) | Method for realtime synchronisation of net element and telecommunication system | |
| CN1859219A (en) | Service take-over method based on device disaster tolerance, service switching device and backup machine | |
| CN1929324A (en) | Master-salve switching method and system for mutual backup device | |
| CN101060485A (en) | Topology changed messages processing method and processing device | |
| CN1700694A (en) | Method and system for acquiring initial protocol network node status of a session | |
| CN1186949C (en) | Radio data communication method and system | |
| CN101047894A (en) | Communication method and communication apparatus | |
| CN1198407C (en) | Device and method for realizing high availability in communication system | |
| CN101043385A (en) | System and method for detecting service healthiness | |
| CN1753354A (en) | Base station TCP agency confirmation method based on ARQ information and its system | |
| CN1301096A (en) | Control and distribution protocol for implantable router frame | |
| CN101064589A (en) | State reporting method for automatic retransmission request | |
| CN1921417A (en) | Method for reporting conversation state of two-way transfer detection |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20080917 Termination date: 20180726 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |