CN102546222A - Backup system and fault detection and processing method - Google Patents
Backup system and fault detection and processing method Download PDFInfo
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- CN102546222A CN102546222A CN2011100208720A CN201110020872A CN102546222A CN 102546222 A CN102546222 A CN 102546222A CN 2011100208720 A CN2011100208720 A CN 2011100208720A CN 201110020872 A CN201110020872 A CN 201110020872A CN 102546222 A CN102546222 A CN 102546222A
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Abstract
The invention relates to a backup system which comprises division point network access equipment, a third-generation (3G) communication module and a network management platform, wherein the division point network access equipment communicates with a core network through a main wired link, and supplies a network access function to a terminal; the 3G communication module is externally connected to an interface of the network access equipment or arranged in the network access equipment, and supplies a 3G wireless backup link to the division point network access equipment; and the network management platform is connected with the division point network access equipment through the main wired link and the 3G wireless backup link and used for monitoring states of the main wired link and the 3G wireless backup link. The invention also relates to a fault detection and processing method. According to the method, the 3G link is used as a backup of the wired link; compared with a mode of extra applying for a new wired link, the backup system is relatively low in found investment, and is relatively easy to maintain, and the limitation caused by resources and environments of the local place on the backup system is low; and furthermore, the problem of poor backup effect caused by relevant fault characteristics of two wired links can be solved.
Description
Technical field
The present invention relates to the communication technology, relate in particular to a kind of standby system and malfunction monitoring processing method.
Background technology
In the telecommunications association area, new wired access link of the normally extra application of traditional networking backup scenario to improve the reliability and the disaster ability to bear of whole piece link, avoids business activity and business carried out impacting and losing.But this traditional wire link backup mode is owing to need to increase new wired access link, and therefore required fund input is bigger, and wired mode can receive location resource and environmental limit, also difficulty very in the maintenance.On the other hand, there is the dependent failure characteristic in two wire links toward contact, and the situation that promptly possibly break down simultaneously causes backing up the problem of poor effect.
For large corporations such as institution of government and enterprises and commercial networks; Link backup must be considered the factor of aspects such as relevant practicality, reliability and cost, and traditional networking backup scenario still can't satisfy the above-mentioned needs of institution of government and enterprises and commercial network.
Summary of the invention
The objective of the invention is to propose a kind of standby system and malfunction monitoring processing method, can reduce cost, improve reliability, satisfy the link backup demand of large corporation.
For realizing above-mentioned purpose, the invention provides a kind of standby system, comprising:
The branch network access equipment is communicated by letter with core net through wired primary link at up direction, and network access facility is provided for the terminal;
The 3G communication module is connected on the interface of said network access equipment outward or is built in the said network access equipment, for said branch network access equipment provides 3G wireless backup link;
Network management platform links to each other with said branch network access equipment with the wireless backup link of 3G through wired primary link, is used for the state of wired primary link and the wireless backup link of 3G is monitored.
Further, said 3G communication module comprises:
The link failure detection unit is used for the failure condition of wired primary link of said branch network access equipment is detected;
The backup mode converting unit is used for when the wired primary link that detects said branch network access equipment breaks down, and starts said 3G link communication pattern, and the data flow of said branch network access equipment is switched to the wireless backup link of 3G.
Further, said 3G communication module also comprises:
The backup mode reduction unit is used for recovering just often at the wired primary link that detects said branch network access equipment, and data flow is reverted back wired primary link.
Further, said network management platform comprises:
The link monitoring unit is used for based on Simple Network Management Protocol (Simple Network Management Protocol is called for short SNMP) state of said wired primary link and the wireless backup link of 3G being monitored;
The signalling trouble unit, when the wired primary link that is used to monitor said branch network access equipment broke down, personnel sent signalling trouble to webmaster.
Further, said branch network access equipment also comprises:
Principal point gateway inspection unit is used for being detected by the former routed ip address of path priority protocol (Open Shortest Path Protocol is called for short OSPF) to far-end principal point gateway based on open shortest path;
The route reselection unit when being used for detecting the former routed ip address of said far-end principal point gateway, is selected corresponding reached routed ip address at open shortest path in by priority protocol territory, path according to priority rule.
Further, said network management platform also comprises:
The route reduction unit is used for when the former routed ip address that detects said far-end principal point gateway can reach, reactivating the route of former routed ip address.
For realizing above-mentioned purpose, the invention provides a kind of fault detect processing method based on aforementioned standby system, comprising:
When the wired primary link that detects the branch network access equipment when the 3G communication module breaks down, start said 3G link communication pattern, and the data flow of said branch network access equipment is switched to the wireless backup link of 3G;
When wired primary link that network management platform monitors said branch network access equipment broke down, personnel sent signalling trouble to webmaster.
Further, after the data flow with said branch network access equipment switches to the wireless backup link of 3G, also comprise:
The wired primary link that monitors said branch network access equipment in said 3G communication module recovers just often, and data flow is reverted back wired primary link.
Further, also comprise:
Said branch network access equipment is detected by the former routed ip address of path priority protocol to far-end principal point gateway based on open shortest path;
When said branch network access equipment can't detect the former routed ip address of said far-end principal point gateway, select corresponding reached at routed ip address at open shortest path in by priority protocol territory, path according to priority rule.
Further, after selecting corresponding reached at routed ip address, also comprise:
When the former routed ip address that detects said far-end principal point gateway at said branch network access equipment can reach, reactivate the route of former routed ip address.
Based on technique scheme; The present invention is with the backup of 3G link as wire link; Mode fund input than the new wire link of extra application is less; And it is less to receive on-site resource and environmental limit, safeguards also easylier, has avoided two wire links simultaneously because the problem of the backup poor effect that causes of dependent failure characteristic; Further, the snmp protocol of network interface had expanded to the monitoring work of 3G environment in the present invention also will be applied in originally, utilized the stronger NE management function of SMNP agreement to carry out fault detect and handled and alarm; Further, the present invention also is used the redirection of router mechanism of OSPF, makes the route that branch is led to principal point when breaking down, change route, guarantees unimpeded between branch and the principal point.
Description of drawings
Accompanying drawing described herein is used to provide further understanding of the present invention, constitutes the application's a part, and illustrative examples of the present invention and explanation thereof are used to explain the present invention, do not constitute improper qualification of the present invention.In the accompanying drawings:
Fig. 1 is a kind of application scenarios sketch map of standby system embodiment of the present invention.
Fig. 2 is the structural representation of 3G communication module among another embodiment of standby system of the present invention.
Fig. 3 is the structural representation of network management platform among the another embodiment of standby system of the present invention.
Fig. 4 is the corresponding application scenarios sketch map of Fig. 3 embodiment.
Fig. 5 is the schematic flow sheet of an embodiment of fault detect processing method of the present invention.
Fig. 6 is the schematic flow sheet of another embodiment of fault detect processing method of the present invention.
Embodiment
Through accompanying drawing and embodiment, technical scheme of the present invention is done further detailed description below.
As shown in Figure 1, be a kind of application scenarios sketch map of standby system embodiment of the present invention.In the present embodiment, standby system comprises: branch network access equipment 1,3G communication module 2 and network management platform 3.Branch network access equipment 1 is communicated by letter with core net through wired primary link at up direction, and network access facility is provided for the terminal.The 3G communication module 2 outer interfaces (also can be built in the branch network access equipment 1) that are connected on network access equipment are for branch network access equipment 1 provides 3G wireless backup link.
Network management platform 3 links to each other with branch network access equipment 1 with the wireless backup link of 3G through wired primary link, can monitor the state of wired primary link and the wireless backup link of 3G.
3G communication module 2 can adopt 3G-modem or the CDMA2000 communication module of USB interface (also be suitable for other serial or parallel interfaces) etc.; The up WAN mouth functional similarity of the access port of 3G communication module 2 and wired primary link all provides the interface that is connected with network side.3G communication module 2 can start when wired primary link breaks down, and continues to provide data transport service, and after wired primary link recovers normally, returns to wired primary link again and continue to provide data transport service.
As can be seen from Figure 1, branch network access equipment 1 can be realized internal network, both can adopt Ethernet wired connection mode (as articulating switch or PC), also can adopt WLAN wireless connections mode (articulating access point AP or wireless controller).
As shown in Figure 2, be the structural representation of 3G communication module among another embodiment of standby system of the present invention.Provided the concrete structure of 3G communication module in the present embodiment, wherein the 3G communication module comprises: link failure detection unit 21 and backup mode converting unit 22.Wherein link failure detection unit 21 is responsible for the failure condition of wired primary link of said branch network access equipment is detected.Backup mode converting unit 22 is responsible for when the wired primary link that detects said branch network access equipment breaks down, and starts 3G link communication pattern, and the data flow of branch network access equipment is switched to the wireless backup link of 3G.
In another embodiment, the 3G communication module can also comprise: backup mode reduction unit 23 (referring to Fig. 2), this unit are used for recovering just often at the wired primary link that detects said branch network access equipment, and data flow is reverted back wired primary link.
As shown in Figure 3, be the structural representation of network management platform among the another embodiment of standby system of the present invention.Network management platform comprises link monitoring unit 31 and signalling trouble unit 32 in the present embodiment.Link monitoring unit 31 is used for based on SNMP the state of said wired primary link and the wireless backup link of 3G being monitored.Signalling trouble unit 32 is responsible for when the wired primary link that monitors said branch network access equipment breaks down, and personnel send signalling trouble to webmaster.Signalling trouble can adopt modes such as note or mail.
When the local wired primary link of branch does not have fault,, so show on the network management platform normally that this moment, 3G link communication module was in not starting state because snmp protocol communication is normal.When wired primary link broke down, network management platform started the service function that 3G link communication module is taken over wired primary link.For the ease of on network management platform, observing link condition intuitively, can show with green normal wired primary link, and, then can show with yellow the wireless backup link of 3G for the Status of Backups that adopts 3G link communication module.
Network management platform in the present embodiment is owing to adopted the agreement of snmp protocol as alarm notification; Changed the function that existing network management platform can only be managed the base station state, and can further monitor the wireless chaining status of headend equipment state and terminal to base station.From another point of view, also expand the range of application of snmp protocol, changed the situation that original snmp protocol only is used for interior network interface, made snmp protocol in the WAN mouth, to use.
Whether through snmp protocol equipment WAN mouth is defined in the instance, for example ppp0 representes private line access, and ppp1 representes the 3G wireless connections, exist these to connect through inspection and judge special line or whether 3G is online, circuit flow situation, port status etc.Through these combinations, judge the state of whole link again, further processing is made by background maintenance department.
The access section that can guarantee branch through the wireless backup link of 3G is access internet normally, if but the suspension situation occurs in core-network side or opposite end network insertion section then still cause realizing the consequence of network service.Therefore the present invention is based on the importance of principal point network, can in the branch network access equipment, increase: principal point gateway inspection unit and route reselection unit with lower unit.Principal point gateway inspection unit is responsible for based on OSPF the former routed ip address of far-end principal point gateway being detected.Corresponding reached at routed ip address is selected according to priority rule in the route reselection unit in ospf domain in the time can't detecting the former routed ip address of said far-end principal point gateway.
As shown in Figure 4, be the corresponding application scenarios sketch map of Fig. 3 embodiment.Whether the branch network access equipment enlivens through the routed ip address of monitoring far-end principal point gateway judges whether to exist failure problems; When appearance acquiescence opposite end outlet fire compartment wall is delayed machine or line interruption; The branch network access equipment can't detect the former routed ip address of said far-end principal point gateway; The former route a that therefore can judge far-end is unreachable, and can select the IP address of corresponding reached at route b this moment according to the priority preset rule in ospf domain.Through selecting new routed ip address, guarantee that the branch network access equipment is unimpeded with communicating by letter of far-end principal point network.
In another embodiment, the branch network access equipment can also comprise: route reduction unit 14, this unit are used for when the former routed ip address that detects said far-end principal point gateway can reach, reactivating the route of former routed ip address.
Below, the present invention will provide the several embodiment based on the fault detect processing method of aforementioned standby system to describe.
As shown in Figure 5, be the schematic flow sheet of an embodiment of fault detect processing method of the present invention.The handling process of the fault detect processing method in the present embodiment comprises:
Step 101, when the wired primary link that detects the branch network access equipment when the 3G communication module breaks down, start said 3G link communication pattern, and the data flow of said branch network access equipment is switched to the wireless backup link of 3G;
When wired primary link that step 102, network management platform monitor said branch network access equipment broke down, personnel sent signalling trouble to webmaster.
It is too high that the 3G Radio Link can well solve the cost that wire link backup brought as backup; Be subject to the problem of location resource and environmental limitations; The dependent failure characteristic issues of two wire links can also be avoided simultaneously, thereby the practical needs of the link backup of public institution of government and enterprises and commercial network can be satisfied.
After the data flow with said branch network access equipment switches to the wireless backup link of 3G; The 3G communication module can also be recovered just often at the wired primary link that monitors said branch network access equipment; Data flow is reverted back wired primary link; Network management platform can in time monitor fault restoration, and shows.
As shown in Figure 6, be the schematic flow sheet of another embodiment of fault detect processing method of the present invention.Consider also that in the present embodiment far-end principal point route can't be communicated with the service disruption or the service that possibly bring and can't carry out, therefore following operating process be provided:
Through present embodiment, can realize that remote data transmission do not interrupt.When the former routed ip address that detects said far-end principal point gateway when the branch network access equipment can reach, can reactivate the route of former routed ip address.
Come the embodiment of the invention is described through a concrete case below.In present case, the far-end principal point has adopted two Juniper netscreen fire compartment walls as line outlet VPN equipment, and carries out encrypted data transmission through the router (network access equipment) of IPSec mode and branch.The network element device of far-end principal point has all adopted ospf protocol, and the router of branch is through the VPN circuit and use static routing to point to the far-end principal point.Juniper netscreen fire compartment wall being routed on the nucleus equipment of branch that heavily distribute confirmed the priority of various routes through detecting outlet IP address, and for example the first outlet fire compartment wall is issued route 10.67.14.64/29 through OSPF, and weighted value is made as 10; The second outlet fire compartment wall is through OSPF issue route 10.67.14.65/29, and weighted value is made as 20 etc.
10.67.14.64/29 (weighted value 10) is pointed in the router default of a certain branch; If the router of this 10.67.14.64/29 breaks down, cause this branch to insert, the ADSL of this branch also breaks down simultaneously; Link-local interrupts; These two kinds of failure conditions take place simultaneously, and the router of branch will start 3G link communication pattern this moment, and data flow is switched to the wireless backup link of 3G; And it is unreachable to detect the 10.67.14.64/29 router through the wireless backup link of 3G; Then launching weighted value according to priority rule is that 20 10.67.14.65/29 jumps route as next; Because this 10.67.14.65/29 route can reach, thereby has realized business recovery.
Network management platform in time through SMS notification webmaster personnel, is repaired local ADSL and far-end principal point link.After local fault restoration, the wireless backup link of 3G reverts back wire link with data flow, and interrupt data transmission automatically.When principal point far-end fault restoration, then reactivate weight and be the target route of 10 10.67.14.64/29.
Above-mentioned case has been merely the present invention has been compared explanation intuitively, but it should be noted that the various conditions in this case are example, and should not be construed as the restriction to protection range of the present invention.
One of ordinary skill in the art will appreciate that: all or part of step that realizes said method embodiment can be accomplished through the relevant hardware of program command; Aforesaid program can be stored in the computer read/write memory medium; This program the step that comprises said method embodiment when carrying out; And aforesaid storage medium comprises: various media that can be program code stored such as ROM, RAM, magnetic disc or CD.
Should be noted that at last: above embodiment is only in order to technical scheme of the present invention to be described but not to its restriction; Although with reference to preferred embodiment the present invention has been carried out detailed explanation, the those of ordinary skill in affiliated field is to be understood that: still can specific embodiments of the invention make amendment or the part technical characterictic is equal to replacement; And not breaking away from the spirit of technical scheme of the present invention, it all should be encompassed in the middle of the technical scheme scope that the present invention asks for protection.
Claims (10)
1. standby system comprises:
The branch network access equipment is communicated by letter with core net through wired primary link at up direction, and network access facility is provided for the terminal;
The 3G communication module is connected on the interface of said network access equipment outward or is built in the said network access equipment, for said branch network access equipment provides 3G wireless backup link;
Network management platform links to each other with said branch network access equipment with the wireless backup link of 3G through wired primary link, is used for the state of wired primary link and the wireless backup link of 3G is monitored.
2. standby system according to claim 1, wherein said 3G communication module comprises:
The link failure detection unit is used for the failure condition of wired primary link of said branch network access equipment is detected;
The backup mode converting unit is used for when the wired primary link that detects said branch network access equipment breaks down, and starts 3G link communication pattern, and the data flow of said branch network access equipment is switched to the wireless backup link of 3G.
3. standby system according to claim 2, wherein said 3G communication module also comprises:
The backup mode reduction unit is used for recovering just often at the wired primary link that detects said branch network access equipment, and data flow is reverted back wired primary link.
4. standby system according to claim 2, wherein said network management platform comprises:
The link monitoring unit is used for based on Simple Network Management Protocol the state of said wired primary link and the wireless backup link of 3G being monitored;
The signalling trouble unit, when the wired primary link that is used to monitor said branch network access equipment broke down, personnel sent signalling trouble to webmaster.
5. standby system according to claim 1, wherein said branch network access equipment also comprises:
Principal point gateway inspection unit is used for being detected by the former routed ip address of path priority protocol to far-end principal point gateway based on open shortest path;
The route reselection unit when being used for detecting the former routed ip address of said far-end principal point gateway, is selected corresponding reached routed ip address at open shortest path in by priority protocol territory, path according to priority rule.
6. standby system according to claim 5, wherein said network management platform also comprises:
The route reduction unit is used for when the former routed ip address that detects said far-end principal point gateway can reach, reactivating the route of former routed ip address.
7. fault detect processing method based on the arbitrary described standby system of claim 1～6 comprises:
When the wired primary link that detects the branch network access equipment when the 3G communication module breaks down, start said 3G link communication pattern, and the data flow of said branch network access equipment is switched to the wireless backup link of 3G;
When wired primary link that network management platform monitors said branch network access equipment broke down, personnel sent signalling trouble to webmaster.
8. fault detect processing method according to claim 7 wherein after the data flow with said branch network access equipment switches to the wireless backup link of 3G, also comprises:
The wired primary link that monitors said branch network access equipment in said 3G communication module recovers just often, and data flow is reverted back wired primary link.
9. fault detect processing method according to claim 7 wherein also comprises:
Said branch network access equipment is detected by the former routed ip address of path priority protocol to far-end principal point gateway based on open shortest path;
When said branch network access equipment can't detect the former routed ip address of said far-end principal point gateway, select corresponding reached at routed ip address at open shortest path in by priority protocol territory, path according to priority rule.
10. fault detect processing method according to claim 9 wherein after selecting corresponding reached at routed ip address, also comprises:
When the former routed ip address that detects said far-end principal point gateway at said branch network access equipment can reach, reactivate the route of former routed ip address.
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| CN201110020872.0A CN102546222B (en) | 2010-12-07 | 2011-01-19 | Backup system and fault detection and processing method |
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| CN201110020872.0A CN102546222B (en) | 2010-12-07 | 2011-01-19 | Backup system and fault detection and processing method |
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