CN110224875A - A kind of multichannel main/slave link fast switch over method and system - Google Patents
A kind of multichannel main/slave link fast switch over method and system Download PDFInfo
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- CN110224875A CN110224875A CN201910567944.XA CN201910567944A CN110224875A CN 110224875 A CN110224875 A CN 110224875A CN 201910567944 A CN201910567944 A CN 201910567944A CN 110224875 A CN110224875 A CN 110224875A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L41/00—Arrangements for maintenance, administration or management of data switching networks, e.g. of packet switching networks
- H04L41/06—Management of faults, events, alarms or notifications
- H04L41/0654—Management of faults, events, alarms or notifications using network fault recovery
- H04L41/0668—Management of faults, events, alarms or notifications using network fault recovery by dynamic selection of recovery network elements, e.g. replacement by the most appropriate element after failure
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L43/00—Arrangements for monitoring or testing data switching networks
- H04L43/10—Active monitoring, e.g. heartbeat, ping or trace-route
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Abstract
The invention proposes a kind of multichannel main/slave link fast switch over method and systems, for each of the links, unique immutable link rank is set, and the state of each link of real-time monitoring, it selects that link state is in activity and the highest link of the highest-ranking link of link is primary link, simplifies the selection rule of main/slave link；Effective reserve link of the configuration at least one in addition to primary link, when primary link communication disruption, this module quickly enables reserve link and is transmitted, and guarantees the continuity of data transmission；When primary link restores normal, reserve link automatically exits from primary link rank and restores stand-by state.
Description
Technical field
The present invention relates to network technique field more particularly to a kind of multichannel main/slave link fast switch over method and systems.
Background technique
In data among systems communication process, often due to network cause or other uncontrollable factors, cause data logical
Letter interrupts, loss of data.The application more demanding for Information Security, timeliness, data-transmission interruptions, loss of data are not
Allow.In order to effectively control the generation of this insecurity factor, multilink active/standby mode is generallyd use, prevention and control are carried out.
But in the selection of main/slave link and handoff procedure, the reserve link chosen less than or chosen there are reserve link is not
The problems such as optimal reserve link, the method for choosing reserve link is complicated, and the active/standby link switchover time is long, process is complicated, therefore,
To solve the above problems, the present invention provides simple, the efficient multichannel main/slave link fast switch over method of one kind and system.
Summary of the invention
In view of this, the invention proposes a kind of simple, efficient multichannel main/slave link fast switch over method and systems.
The technical scheme of the present invention is realized as follows: on the one hand, the present invention provides a kind of multichannel main/slave link is fast
Fast switching method, comprising the following steps:
S1, the link name of each link, link state and link rank are stored in global variable map set,
In, link state includes off-state, state in state and communication in activity, and the initial link circuit state of each link is to disconnect shape
State；
S2, each link carry out TCP request and are connected to communication ends, connect the link being successfully established and enter main/slave link selection
Stage, and link state is changed to state in activity, it carries out in next step；The link that failure is established in connection repeats S2 until connection
It is successfully established；
S3, poll take out all link in global variable map set, choose link state in S2 be in activity state and
The highest-ranking link of link is primary link；
S4, primary link itself read link state when state, to start to communicate with opposite end in communication；When primary link is logical
When occurring abnormal during letter, link state is changed to off-state, and by the link information from global variable map set
It deletes, is that the selection highest-ranking link of link is reserve link in the link of state in activity from remaining link state；
S5, step S2-S4 is repeated, selecting link state is the state and highest-ranking link of link is main chain in activity
Road.
On the basis of above technical scheme, it is preferred that link rank is divided into 1-15 grades in S1, and highest level 1 is minimum
Rank is 15.
It is further preferred that poll time is 5s in S3.
It is further preferred that S3 is further comprising the steps of:
S301, when there are link state be in global variable map set communicate in state link when and rank highest, with
The link is primary link；
S302, when global variable map set in do not have link state be communication in state link when, selection S2 in link
State is the state and highest-ranking link of link is primary link in activity.
It is further preferred that S4 is further comprising the steps of:
S401, primary link itself read link state when state, to start to communicate with opposite end, other link shapes in communication
State is constant and keeps and the heartbeat of opposite end；
S402, when heartbeat response time-out, illustrate that the link disconnects, link state goes off state, and repeats S2
Step.
It is further preferred that other links keep with the time of the heartbeat of opposite end being more than or equal to 20s in S401；
It is more than 15s that the standard of heartbeat response time-out, which is response time, in S402.
It is further preferred that the time that link disconnects in S402 is no more than 50s.
On the other hand, a kind of multichannel main/slave link fast switching system, including main/slave link monitoring module, configuration strategy
Module, memory and multilink；
Configuration strategy module configures the rank and state of each link；
Main/slave link monitoring module monitors the link state of each link in real time, chooses master according to each link state and rank
Link；
The result that memory stores title, rank and the state of each link and main/slave link monitoring module is chosen.
It is further preferred that link state include off-state, activity in state and communication in state, each link it is initial
Link state is off-state；
Link rank is divided into 1-15 grades, highest level 1, lowest level 15.
It is further preferred that it is in activity and the highest-ranking chain of link that main/slave link monitoring module, which chooses each link state,
Road is primary link.
A kind of multichannel main/slave link fast switch over method of the invention and system have following have compared with the existing technology
Beneficial effect:
(1) unique immutable link rank, and the state of each link of real-time monitoring are set for each of the links, select chain
Line state is in activity and the highest link of the highest-ranking link of link is primary link, simplifies the selection rule of main/slave link
Then；
(2) effective reserve link of the configuration at least one in addition to primary link, when primary link communication disruption, this module is fast
Speed enables reserve link and is transmitted, and guarantees the continuity of data transmission；When primary link restores normal, reserve link moves back automatically
Primary link rank restores stand-by state out.
Detailed description of the invention
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below
There is attached drawing needed in technical description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this
Some embodiments of invention for those of ordinary skill in the art without creative efforts, can be with
It obtains other drawings based on these drawings.
Fig. 1 is a kind of flow chart of multichannel main/slave link fast switch over method of the present invention；
Fig. 2 is the further step of S3 in a kind of multichannel main/slave link fast switch over method of the present invention；
Fig. 3 is the further step of S4 in a kind of multichannel main/slave link fast switch over method of the present invention；
Fig. 4 is a kind of structure chart of multichannel main/slave link fast switching system of the present invention.
Specific embodiment
Below in conjunction with embodiment of the present invention, the technical solution in embodiment of the present invention is carried out clearly and completely
Description, it is clear that described embodiment is only some embodiments of the invention, rather than whole embodiments.Base
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts all
Other embodiments shall fall within the protection scope of the present invention.
Embodiment one,
As shown in Figure 1, a kind of multichannel main/slave link fast switch over method of the invention, comprising the following steps:
S1, the link name of each link, link state and link rank are stored in global variable map set,
In, link state includes off-state, state in state and communication in activity, and the initial link circuit state of each link is to disconnect shape
State；
Wherein, link rank is divided into 1-15 grades in S1, and highest level 1, lowest level 15, the rank of link is someone
For configuration, each of the links only have a unique rank, and will not change.
S2, each link carry out TCP request and are connected to communication ends, connect the link being successfully established and enter main/slave link selection
Stage, and link state is changed to state in activity, it carries out in next step；The link that failure is established in connection repeats S2 until connection
It is successfully established；
Wherein, the connection establishment process of TCP is also known as TCP three-way handshake.Sender's host is sent out to recipient's host first
Play synchronization (SYN) request for establishing connection；Recipient's host is same to the side's of sending host response one after receiving this request
Step/confirmation (SYN/ACK) response；Sender's host receives this Bao Houzai and sends a confirmation (ACK) to recipient's host, at this time
TCP connection is successfully established.
S3, poll take out all link in global variable map set, choose link state in S2 be in activity state and
The highest-ranking link of link is primary link；
Wherein, poll time 5s, i.e., it is primary every 5s poll.
As shown in Fig. 2, further comprising the steps of in this step:
S301, when there are link state be in global variable map set communicate in state link when and rank highest, with
The link is primary link；
S302, when global variable map set in do not have link state be communication in state link when, selection S2 in link
State is the state and highest-ranking link of link is primary link in activity.
S4, primary link itself read link state when state, to start to communicate with opposite end in communication；When primary link is logical
When occurring abnormal during letter, link state is changed to off-state, and by the link information from global variable map set
It deletes, is that the selection highest-ranking link of link is reserve link in the link of state in activity from remaining link state；Its
In, the primary link of deletion repeats step S2 and writes the information of primary link again when primary link is connect with communication ends to be successfully established
Enter in global variable map set；
As shown in figure 3, the step in it is further comprising the steps of:
S401, primary link itself read link state when state, to start to communicate with opposite end, other link shapes in communication
State is constant and keeps and the heartbeat of opposite end；
S402, when heartbeat response time-out, illustrate that the link disconnects, link state goes off state, and repeats S2
Step.
Wherein, other links keep being more than or equal to 20s with the time of the heartbeat of opposite end in S401, and heartbeat is answered in S402
It is more than 15s that the standard for answering time-out, which is response time, is more than or equal to 20s or opposite end response when the time of the heartbeat with opposite end
Time is more than 15s, then illustrates that the link disconnects, and also require link turn-off time no more than 50s in the present embodiment.
S5, step S2-S4 is repeated, selecting link state is the state and highest-ranking link of link is main chain in activity
Road.
The state that setting steps S5 is primarily due to each of the links is all changing, and needs to choose link state in communication and is
State and the highest-ranking link of link are primary link in activity, and therefore, it is necessary to the real time status informations of each link of circulatory monitoring.
By step S5 can different moments select in current time link state for state in activity and link it is highest-ranking
Link.
Embodiment two,
On the basis of example 1, the present embodiment provides a kind of multichannel main/slave link fast switching systems, including master
Standby link monitoring module, configuration strategy module, memory and multilink.
Wherein, configuration strategy module configures the rank and state of each link.In the present embodiment, link state includes disconnected
State in state and communication in open state, activity, the initial link circuit state of each link is off-state；Link rank is divided into 1-15
Grade, highest level 1, lowest level 15, the rank of link is that have artificial configuration, and each of the links only have a unique grade
Not, and will not change.
In the present embodiment, at least both links are provided with, primarily to work as primary link communication disruption, it can be quick
It enables reserve link to be transmitted, and guarantees the continuity of data transmission；When primary link restores normal, reserve link is automatically exited from
Primary link rank restores stand-by state.
Main/slave link monitoring module monitors the link state of each link in real time, chooses master according to each link state and rank
Link.Each link is off-state in the initial state, and each link needs to carry out TCP request and be connected to communication ends, is connected
The link being successfully established enters main/slave link and chooses the stage, and link state is changed to state in activity；Failure is established in connection
Link repeat TCP request until connection be successfully established, main/slave link monitoring module only choose link state for activity in
State and the highest-ranking link of link are primary link.
The result that memory stores title, rank and the state of each link and main/slave link monitoring module is chosen.Such as
Shown in Fig. 4, in the multichannel main/slave link fast switching system that application program A transfers data to the present embodiment, each link
It receives, memory stores the current rank and state of each link, and main/slave link monitoring module monitors the state of each link, root in real time
Primary link is chosen according to each link state and rank, and in memory by the storage of the result of selection, each link is according to main/slave link
The primary link that monitoring module selects is communicated, and realizes the communication of opposite end.
The foregoing is merely better embodiments of the invention, are not intended to limit the invention, all of the invention
Within spirit and principle, any modification, equivalent replacement, improvement and so on be should all be included in the protection scope of the present invention.
Claims (10)
1. a kind of multichannel main/slave link fast switch over method, it is characterised in that: the following steps are included:
S1, the link name of each link, link state and link rank are stored in global variable map set, wherein chain
Line state includes off-state, state in state and communication in activity, and the initial link circuit state of each link is off-state；
S2, each link carry out TCP request and are connected to communication ends, connect the link being successfully established and enter main/slave link selection rank
Section, and link state is changed to state in activity, it carries out in next step；The link that failure is established in connection repeats S2 until connection is built
It stands successfully；
S3, poll take out link all in global variable map set, and choosing link state in S2 is state and link in activity
Highest-ranking link is primary link；
S4, primary link itself read link state when state, to start to communicate with opposite end in communication；When primary link was communicating
When occurring abnormal in journey, link state is changed to off-state, and the link information is deleted from global variable map set
It removes, is that the selection highest-ranking link of link is reserve link in the link of state in activity from remaining link state；
S5, step S2-S4 is repeated, selecting link state is the state and highest-ranking link of link is primary link in activity.
2. a kind of multichannel main/slave link fast switch over method as described in claim 1, it is characterised in that: link in the S1
Rank is divided into 1-15 grades, highest level 1, lowest level 15.
3. a kind of multichannel main/slave link fast switch over method as claimed in claim 2, it is characterised in that: poll in the S3
Time is 5s.
4. a kind of multichannel main/slave link fast switch over method as claimed in claim 3, it is characterised in that: the S3 further includes
Following steps:
S301, when there are link state be in global variable map set communicate in state link when and rank highest, with the chain
Road is primary link；
S302, when global variable map set in do not have link state be communication in state link when, selection S2 in link state
For state in activity and the highest-ranking link of link is primary link.
5. a kind of multichannel main/slave link fast switch over method as claimed in claim 4, it is characterised in that: the S4 further includes
Following steps:
S401, primary link itself read link state when state, to start to communicate with opposite end, other link states are not in communication
Become and keeps the heartbeat with opposite end；
S402, when heartbeat response time-out, illustrate that the link disconnects, link state goes off state, and repeats S2 step.
6. a kind of multichannel main/slave link fast switch over method as claimed in claim 5, it is characterised in that: its in the S401
Its link keeps with the time of the heartbeat of opposite end being more than or equal to 20s；
It is more than 15s that the standard of heartbeat response time-out, which is response time, in the S402.
7. a kind of multichannel main/slave link fast switch over method as claimed in claim 6, it is characterised in that: chain in the S402
The time that road disconnects is no more than 50s.
8. a kind of multichannel main/slave link fast switching system, it is characterised in that: including main/slave link monitoring module, configuration strategy
Module, memory and multilink；
The configuration strategy module configures the rank and state of each link；
The main/slave link monitoring module monitors the link state of each link in real time, chooses master according to each link state and rank
Link；
The result that the memory stores title, rank and the state of each link and main/slave link monitoring module is chosen.
9. a kind of multichannel main/slave link fast switching system as claimed in claim 8, it is characterised in that: the link state
Including state in state in off-state, activity and communication, the initial link circuit state of each link is off-state；
The link rank is divided into 1-15 grades, highest level 1, lowest level 15.
10. a kind of multichannel main/slave link fast switching system as claimed in claim 9, it is characterised in that: the active and standby chain
Each link state of road monitoring module selection is in activity and the highest-ranking link of link is primary link.
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| CN111724276A (en) * | 2020-05-19 | 2020-09-29 | 浙江浙能长兴天然气热电有限公司 | Power plant data transmission method and system integrating self-diagnosis and channel optimization |
| CN112263849A (en) * | 2020-09-29 | 2021-01-26 | 湖北鑫英泰系统技术股份有限公司 | Stirring speed control method and device based on environmental pressure |
| CN113676405A (en) * | 2021-08-18 | 2021-11-19 | 上海晨驭信息科技有限公司 | Load sharing-based rapid link master-slave switching distributed system and method |
| CN116566568A (en) * | 2021-04-07 | 2023-08-08 | 华为技术有限公司 | Information indication method and communication device |
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| CN111724276A (en) * | 2020-05-19 | 2020-09-29 | 浙江浙能长兴天然气热电有限公司 | Power plant data transmission method and system integrating self-diagnosis and channel optimization |
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Application publication date: 20190910 |