CN102202002A - Internet protocol (IP)-routing-protocol-based emergency communication network automatic switching method - Google Patents
Internet protocol (IP)-routing-protocol-based emergency communication network automatic switching method Download PDFInfo
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- CN102202002A CN102202002A CN2011101646794A CN201110164679A CN102202002A CN 102202002 A CN102202002 A CN 102202002A CN 2011101646794 A CN2011101646794 A CN 2011101646794A CN 201110164679 A CN201110164679 A CN 201110164679A CN 102202002 A CN102202002 A CN 102202002A
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Abstract
The invention discloses an Internet protocol (IP)-routing-protocol-based emergency communication network automatic switching method. A router is arranged between a proper communication network and an emergency communication network, sets a high priority for the proper communication network and sets a low priority for the emergency communication network by adopting a floating static routing protocol. Therefore, under normal conditions, communication between a service system source and a service system host adopts the proper communication network with the high priority. Simultaneously, a link quality detection protocol is run in real time on the router to detect the link quality of the proper communication network at any time, the floating static routing protocol is triggered by a linkage item on the router and exchanges the priorities of the proper communication network and the emergency communication network when the link quality does not meet communication conditions, and the communication between the service system source and the service system host adopts the emergency communication network, so the automatic switching of the emergency communication network is realized without manual switching.
Description
Technical field
The present invention relates to route handoff technique field, particularly a kind of Emergency Communications Network automatic switching method based on IP routing protocol.
Background technology
In recent years, various major natural disasters occur in succession, bring major disaster to the people, and economy is subjected to significant impact, and country has taked various related measures, guarantee minimizing of disaster loss.In electric power system, the great ice and snow weather that congeals takes place in south in 2008, brings huge wound to power telecom network, and Wenchuan earthquake also brings to electrical network and power communication and seriously influences.Thus, emergency commading system more and more is subjected to people's attention.
Current social belongs to informationized society, and the information height is shared, and for guaranteeing the running of system, emergency communication net is to guarantee the various nerves of wanting service operation, information opened.How to guarantee that for this reason it is the emphasis problem that current people pay close attention to that the emergency communication passage switches mutually with normal operation passage.
For the switching between emergency communication passage and the normal traffic passage, most common form is manual wire jumper at present.As seen from Figure 1, this mode is exactly directly to come wire jumper by hand, and wire jumper is received on the escape truck interface, relies on Emergency Communications Network to realize the transfer of passage, guarantees the unimpeded of service channel.
The mode of manual wire jumper seems available, but anatomizes, and following three shortcomings are still arranged:
Switching time is long, and application is restricted.Owing to all will rely on " craft " to finish switching, it is longer that business switches to the time, need pull out, insert two process operations, and need carry out more corresponding software and hardware configuration, for this reason the time very long usually, passage service time all will reach several minutes even dozens of minutes.
The reliability aspect is relatively poor.Because escape truck is not commonly used especially, even all lack for many years and uses once, but it acts on and particular importance, manual for this reason wire jumper may be because unreliable factors such as generation such as " loose contact " reason passage is unavailable, instabilities when service access.
Be not suitable for the switching of remote node business.Current a lot of escape truck all is to solve distant place communication, manual wire jumper mode can not meet the demands, and causes traffic congestion in natural calamity especially, during situation such as the road closure of congealing, and the staff can't arrive scene, a distant place, the manual switching is actually infeasible, can't reach the purpose of switching.
Summary of the invention
The present invention proposes a kind of method that automaticallyes switch based on the Emergency Communications Network of IP routing protocol,, remove the inconvenience that the traditional-handwork wire jumper brings to realize the automatic switchover of emergency communication passage.
The present invention is based on the method for the Emergency Communications Network automatic switchover of IP routing protocol, comprise step:
Preferably, described detection protocol is quality analysis agreement and bidirectional transmission detecting protocol.
Preferably, described link-quality comprises that delay variation, TCP connect time delay, FTP connects time delay and file transfer speed.
The present invention is based on the method for the Emergency Communications Network automatic switchover of IP routing protocol, between normal traffic network and Emergency Communications Network, set up router, router adopts the floating static Routing Protocol that the normal traffic network is made as high priority, and Emergency Communications Network is made as low priority.Therefore, under the normal condition, what the communication between operation system source end and the operation system Su Duan was adopted all is the normal traffic network of high priority.Simultaneously, go back real time execution on the router and the link-quality detection protocol, constantly detect the link-quality of normal traffic network, when link-quality does not satisfy communication condition, interlock item on the router then triggers the floating static Routing Protocol, and the floating static Routing Protocol is then changed the priority of normal traffic network and Emergency Communications Network, and operation system source end and operation system Su Duan use Emergency Communications Network instead and communicate, realize the automatic switchover of Emergency Communications Network, and need not manual switching.Wherein, the process of switching is finished in this router, does not need to transmit routing iinformation with other routers and calculate, thereby has reduced handover delay.
Description of drawings
Fig. 1 is that manual wire jumper is realized the schematic network structure that Emergency Communications Network switches;
Fig. 2 is the method flow schematic diagram that the present invention is based on the Emergency Communications Network automatic switchover of IP routing protocol;
Fig. 3 is the schematic network structure that adopts the method for the Emergency Communications Network automatic switchover that the present invention is based on IP routing protocol.
Embodiment
Router is an equipment the most intelligent in the network, and it can realize various functions such as route selection automatically, data transaction, signaling conversion.The present invention just with router as subject of implementation, use the technology that it automatically selects route, the drawback that has replaced manual wire jumper to switch realizes the automatic switchover of Emergency Communications Network.Explain the present invention in detail below in conjunction with accompanying drawing.
The present invention is based on the method for the Emergency Communications Network automatic switchover of IP routing protocol, as shown in Figure 2, may further comprise the steps:
As shown in Figure 3, step 1 has increased by two routers, wherein one links to each other with operation system source end, Emergency Communications Network interface and normal traffic network interface respectively, another links to each other with operation system Su Duan, Emergency Communications Network interface and normal traffic network interface respectively, and the internal structure of two routers is consistent with function.The step 2 router utilization floating static Routing Protocol priority of normal traffic network and Emergency Communications Network respectively is set to highly and low, also just means, and under the normal condition, the data that employing normal traffic network comes transport service system source end and Su Duan.For when accident occurs, can fast communication network be switched to Emergency Communications Network, the router of step 3 moves detection protocol constantly, detects the link-quality of normal traffic network.Do not met communication condition in case detect the link-quality of normal traffic network, reduce to 10Kbit/s as transmission speed by 100Kbit/s, the interlock item that router is set up in the step 4 just triggers static routing protocol, the priority of two kinds of networks of router utilization static routing protocol transposing, be that the normal traffic network priority is low, Emergency Communications Network priority is high.At this moment, Emergency Communications Network is routed device and wakes up, adopts Emergency Communications Network to communicate between operation system source end and the Su Duan.
Existing various route technology all lays particular emphasis on physical state (link break-make) at network link or the quality (jumping figure, distance, circuit physical rate) of network path is measured, judged, and then, when the actual transfer packet, carry out Path selection according to routing table by routing algorithm formation routing table.Because under normal circumstances, Emergency Communications Network usually is in " DOWN " machine (off-duty) situation, can't seek route by normal routing algorithm for this reason, need to judge and make Route Selection by quality (time delay, bandwidth, break-make frequency, actual transfer rate etc.) to link.The detection that above-mentioned steps 3 is done promptly is that link-quality detects, and the detection protocol that is adopted is quality analysis agreement, bidirectional transmission detecting protocol etc., and the project that is detected comprises that delay variation, TCP connect time delay, FTP connects time delay and file transfer speed etc.
After adopting method of the present invention, only be 2 minutes by the normal traffic network to switching time of Emergency Communications Network, even lower (mainly being the routing convergence time) under case of emergency, really realized emergent application.Method of the present invention can allow Emergency Communications Network need not start shooting under the normality situation, promptly is in stand-by state, has increased substantially the survivability of network, thereby has improved professional safeguard level greatly.Public correspondence network for needing leased satellite communication can save resources such as network traffics and bandwidth, thereby save investment.Adopt method of the present invention can realize the automatic switchover of remote site business, avoided can't arriving the drawback that remote scene switches owing to various major natural disasters influence reasons such as traffic jam, effect is fairly obvious.
Above-described the specific embodiment of the present invention, and the qualification that is not intended to limit the scope of the invention, but describe at possible embodiments of the present invention.Any based on the modification of being done within the spirit and principles in the present invention, be equal to and replace and improvement etc., all should be included within the claim protection range of the present invention.
Claims (3)
1. a method that automaticallyes switch based on the Emergency Communications Network of IP routing protocol is characterized in that, comprises step:
Step 1, setting up router respectively between operation system source end, Emergency Communications Network and the normal traffic network and between operation system Su Duan, Emergency Communications Network and the normal traffic network;
Step 2, the Routing Protocol that utilize to float on described router are provided with network priority, and the normal traffic network is made as height, and Emergency Communications Network is made as low;
Step 3, on described router, move detection protocol, detect the link-quality of normal traffic network;
Step 4, set up interlock on described router, when the link that detects the normal traffic network when step 3 did not meet communication condition, interlock triggered the priority of float Routing Protocol transposing normal traffic network and Emergency Communications Network.
2. the method that automaticallyes switch based on the Emergency Communications Network of IP routing protocol according to claim 1 is characterized in that described detection protocol is quality analysis agreement and bidirectional transmission detecting protocol.
3. the method that automaticallyes switch based on the Emergency Communications Network of IP routing protocol according to claim 1 and 2 is characterized in that, described link-quality comprises that delay variation, TCP connect time delay, FTP connects time delay and file transfer speed.
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| CN2011101646794A CN102202002A (en) | 2011-06-17 | 2011-06-17 | Internet protocol (IP)-routing-protocol-based emergency communication network automatic switching method |
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| CN2011101646794A CN102202002A (en) | 2011-06-17 | 2011-06-17 | Internet protocol (IP)-routing-protocol-based emergency communication network automatic switching method |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN105472675A (en) * | 2015-12-07 | 2016-04-06 | 国网新疆电力公司乌鲁木齐供电公司 | Automatic switching method for power communication networks |
| CN109600775A (en) * | 2017-09-30 | 2019-04-09 | 上海华为技术有限公司 | A kind of emergency O&M OM link establishing method and relevant device |
| CN111049700A (en) * | 2019-11-19 | 2020-04-21 | 深圳明心科技有限公司 | Network transmission management method and system |
| CN114222279A (en) * | 2021-12-31 | 2022-03-22 | 全球能源互联网研究院有限公司 | Emergency command field global information transmission method and edge intelligent equipment |
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| CN101483558A (en) * | 2008-01-10 | 2009-07-15 | 华为技术有限公司 | Method, system and apparatus for packet switching network access by network appliance |
| CN101674199A (en) * | 2009-09-22 | 2010-03-17 | 中兴通讯股份有限公司 | Method for realizing switching during network fault and finders |
| CN102035692A (en) * | 2009-09-30 | 2011-04-27 | 中兴通讯股份有限公司 | Method and device for detecting quality of link |
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| CN101483558A (en) * | 2008-01-10 | 2009-07-15 | 华为技术有限公司 | Method, system and apparatus for packet switching network access by network appliance |
| CN101415195A (en) * | 2008-11-24 | 2009-04-22 | 华为技术有限公司 | Communication method, apparatus and system |
| CN101674199A (en) * | 2009-09-22 | 2010-03-17 | 中兴通讯股份有限公司 | Method for realizing switching during network fault and finders |
| CN102035692A (en) * | 2009-09-30 | 2011-04-27 | 中兴通讯股份有限公司 | Method and device for detecting quality of link |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105472675A (en) * | 2015-12-07 | 2016-04-06 | 国网新疆电力公司乌鲁木齐供电公司 | Automatic switching method for power communication networks |
| CN109600775A (en) * | 2017-09-30 | 2019-04-09 | 上海华为技术有限公司 | A kind of emergency O&M OM link establishing method and relevant device |
| CN111049700A (en) * | 2019-11-19 | 2020-04-21 | 深圳明心科技有限公司 | Network transmission management method and system |
| CN114222279A (en) * | 2021-12-31 | 2022-03-22 | 全球能源互联网研究院有限公司 | Emergency command field global information transmission method and edge intelligent equipment |
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Address after: 510663 Luogang District, Guangdong, Guangzhou Science City Fung Road, No. 1, No. Applicant after: Guangdong Electric Power Design Institute of CEEC Address before: 510663 Luogang District, Guangdong, Guangzhou Science City Fung Road, No. 1, No. Applicant before: Guangdong Electric Power Design Institute |
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Application publication date: 20110928 |