CN102546222B - Backup system and fault detection and processing method - Google Patents
Backup system and fault detection and processing method Download PDFInfo
- Publication number
- CN102546222B CN102546222B CN201110020872.0A CN201110020872A CN102546222B CN 102546222 B CN102546222 B CN 102546222B CN 201110020872 A CN201110020872 A CN 201110020872A CN 102546222 B CN102546222 B CN 102546222B
- Authority
- CN
- China
- Prior art keywords
- network access
- link
- access equipment
- branch network
- address
- 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.)
- Active
Links
Landscapes
- Data Exchanges In Wide-Area Networks (AREA)
- Mobile Radio Communication Systems (AREA)
- Small-Scale Networks (AREA)
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, particularly relate to a kind of standby system and malfunction monitoring processing method.
Background technology
In telecommunications association area, traditional networking backup scenario normally additionally applies for a new access in radio link, to improve reliability and the disaster ability to bear of whole piece link, avoids carrying out business activity and business impacting and loss.But this traditional wire link backup mode is owing to needing to increase new access in radio link, and therefore required fund input is larger, and wired mode can be subject to location resource and environmental limit, also very difficult in maintenance.On the other hand, there is dependent failure characteristic toward contact in two wire link, and namely may break down situation simultaneously, causes the problem backing up poor effect.
For large corporations such as institution of government and enterprises and commercial networks, link backup must consider the factor about aspects such as practicality, reliability and costs, and traditional networking backup scenario there is no the above-mentioned needs that method meets institution of government and enterprises and commercial network.
Summary of the invention
The object of the invention is to propose a kind of standby system and malfunction monitoring processing method, can reduce costs, improve reliability, meet the link backup demand of large corporation.
For achieving the above object, the invention provides a kind of standby system, comprising:
Branch network access equipment, at up direction by wired primary link and core network communications, and provides network access facility for terminal;
3G communication module, is connected on the interface of described network access equipment outward or is built in described network access equipment, for described branch network access equipment provides 3G wireless backup link;
Network management platform, is connected with described branch network access equipment with 3G wireless backup link by wired primary link, for the monitoring state to wired primary link and 3G wireless backup link.
Further, described 3G communication module comprises:
Link failure detection unit, the failure condition for the wired primary link to described branch network access equipment detects;
Backup mode converting unit, for when detecting that wired primary link of described branch network access equipment breaks down, starts described 3G link communication pattern, and by the data flow handoff of described branch network access equipment to 3G wireless backup link.
Further, described 3G communication module also comprises:
Backup mode reduction unit, for when detecting that wired primary link of described branch network access equipment recovers normal, reverts back wired primary link by data flow.
Further, described network management platform comprises:
Link monitoring unit, for based on the monitoring state of Simple Network Management Protocol (Simple NetworkManagement Protocol, be called for short SNMP) to described wired primary link and 3G wireless backup link;
Malfunction notification unit, when the wired primary link for monitoring described branch network access equipment breaks down, to webmaster, personnel send signalling trouble.
Further, described branch network access equipment also comprises:
Principal point gateway inspection unit, for detecting the former routed ip address of far-end principal point gateway based on open shortest route moving heat source (Open Shortest Path Protocol is called for short OSPF);
Route reselection unit, during for the former routed ip address of described far-end principal point gateway being detected, selects corresponding reached at routed ip address according to priority rule in open shortest route moving heat source territory.
Further, described network management platform also comprises:
Route reduction unit, for when detecting that the former routed ip address of described far-end principal point gateway can reach, reactivates the route of former routed ip address.
For achieving the above object, the invention provides a kind of fault detect processing method based on aforementioned standby system, comprising:
When 3G communication module detects that wired primary link of branch network access equipment breaks down, start described 3G link communication pattern, and by the data flow handoff of described branch network access equipment to 3G wireless backup link;
When wired primary link that network management platform monitors described branch network access equipment breaks down, to webmaster, personnel send signalling trouble.
Further, after by the data flow handoff of described branch network access equipment to 3G wireless backup link, also comprise:
When wired primary link that described 3G communication module monitors described branch network access equipment recovers normal, data flow is reverted back wired primary link.
Further, also comprise:
Described branch network access equipment detects based on the former routed ip address of open shortest route moving heat source to far-end principal point gateway;
When described branch network access equipment cannot detect the former routed ip address of described far-end principal point gateway, in open shortest route moving heat source territory, select corresponding reached at routed ip address according to priority rule.
Further, after selecting corresponding reached at routed ip address, also comprise:
When described branch network access equipment detects that the former routed ip address of described far-end principal point gateway can reach, reactivate the route of former routed ip address.
Based on technique scheme, the present invention is using the backup of 3G link as wire link, the mode fund input of the wire link new compared to extra application is less, and the restriction being subject to on-site resources and environment is less, safeguard also easier, avoid the problem of the backup poor effect that two wire link causes due to dependent failure characteristic simultaneously; Further, the snmp protocol being originally applied in interior network interface also be extend to the monitoring work of 3G environment by the present invention, and the NE management function utilizing SMNP agreement stronger is to carry out fault detect process and alarm; Further, the present invention is also with the use of the redirection of router mechanism of OSPF, and enable the route that branch leads to principal point change route when breaking down, that guarantees between branch and principal point is unimpeded.
Accompanying drawing explanation
Accompanying drawing described herein is used to provide a further understanding of the present invention, and form a application's part, schematic description and description of the present invention, for explaining the present invention, does not form inappropriate limitation of the present invention.In the accompanying drawings:
Fig. 1 is a kind of application scenarios schematic diagram of standby system embodiment of the present invention.
Fig. 2 is the structural representation of 3G communication module in another embodiment of standby system of the present invention.
Fig. 3 is the structural representation of network management platform in the another embodiment of standby system of the present invention.
Fig. 4 is application scenarios schematic diagram corresponding to 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
Below by drawings and Examples, technical scheme of the present invention is described in further detail.
As shown in Figure 1, be a kind of application scenarios schematic diagram 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 by wired primary link and core network communications, and provides network access facility for terminal at up direction.The interface (also can be built in branch network access equipment 1) of network access equipment is connected on, for branch network access equipment 1 provides 3G wireless backup link outside 3G communication module 2.
Network management platform 3 is connected with branch network access equipment 1 with 3G wireless backup link by wired primary link, can to the monitoring state of wired primary link and 3G wireless backup link.
3G communication module 2 can adopt 3G-modem or the CDMA2000 communication module etc. of USB interface (being also suitable for other serial or parallel interfaces), the access port of 3G communication module 2 and the up WAN mouth functional similarity of wired primary link, be all to provide the interface be connected with network side.3G communication module 2 can start when wired primary link breaks down, and continues to provide data transport service, and recovers normally at wired primary link, again returns to wired primary link and continues to provide data transport service.
As can be seen from Figure 1, branch network access equipment 1 can realize internal network, both can adopt Ethernet wired connection mode (as mounting switch or PC), also can adopt WLAN radio connection (mounting access point AP or wireless controller).
As shown in Figure 2, be the structural representation of 3G communication module in another embodiment of standby system of the present invention.Give the concrete structure of 3G communication module in the present embodiment, wherein 3G communication module comprises: link failure detection unit 21 and backup mode converting unit 22.Wherein link failure detection unit 21 is responsible for detecting the failure condition of wired primary link of described branch network access equipment.Backup mode converting unit 22 is responsible for when detecting that wired primary link of described branch network access equipment breaks down, and starts 3G link communication pattern, and by the data flow handoff of branch network access equipment to 3G wireless backup link.
In another embodiment, 3G communication module can also comprise: backup mode reduction unit 23 (see Fig. 2), this unit is used for, when detecting that wired primary link of described branch network access equipment recovers normal, data flow being reverted back wired primary link.
As shown in Figure 3, be the structural representation of network management platform in the another embodiment of standby system of the present invention.Network management platform comprises link monitoring unit 31 and malfunction notification unit 32 in the present embodiment.Link monitoring unit 31 is for based on the monitoring state of SNMP to described wired primary link and 3G wireless backup link.Malfunction notification unit 32 is responsible for when the wired primary link monitoring described branch network access equipment breaks down, and to webmaster, personnel send signalling trouble.Signalling trouble can adopt the mode such as note or mail.
When wired primary link of branch this locality does not have fault, because snmp protocol communication is normal, therefore on network management platform, display is normal, and now 3G link communication module is in non-starting state.When wired primary link breaks down, network management platform starts the service function that 3G link communication module takes over wired primary link.For the ease of observing link condition intuitively on network management platform, can show with green normal wired primary link, and for adopting the Status of Backups of 3G link communication module, then can show with yellow 3G wireless backup link.
Network management platform is in the present embodiment owing to have employed the agreement of snmp protocol as alarm notification, change the function that existing network management platform can only manage base station state, and can monitor the wireless chaining status of headend equipment state and terminal to base station further.From another point of view, also extend the range of application of snmp protocol, change original snmp protocol only for the situation of interior network interface, snmp protocol can be applied in WAN mouth.
Defined equipment WAN mouth by snmp protocol in example, such as ppp0 represents private line access, and ppp1 represents 3G wireless connections, by checking whether that there are these connects and judge special line or 3G whether online, circuit traffic conditions, port status etc.By these combinations, then judge the state of whole link, further process is made by background maintenance department.
Can guarantee that the access section of branch normally can access the Internet by 3G wireless backup link, if but occur offline condition in core-network side or correspondent network access section, still cause the consequence that cannot realize network service.Therefore the present invention is based on the importance of principal point network, can increase with lower unit in branch network access equipment: principal point gateway inspection unit and route reselection unit.Principal point gateway inspection unit is responsible for detecting the former routed ip address of far-end principal point gateway based on OSPF.Route reselection unit, when the former routed ip address of described far-end principal point gateway being detected, selects corresponding reached at routed ip address according to priority rule in ospf domain.
As shown in Figure 4, be application scenarios schematic diagram that Fig. 3 embodiment is corresponding.Whether branch network access equipment is enlivened by the routed ip address of monitoring far-end principal point gateway judges whether to there is failure problems, when appearance acquiescence opposite end outlet fire compartment wall delays machine or line interruption, branch network access equipment cannot detect the former routed ip address of described far-end principal point gateway, therefore can judge that the former route a of far-end is unreachable, now can select the IP address of corresponding reached at route b according to the priority rule preset in ospf domain.By selecting new routed ip address, ensure that the communication of branch network access equipment and far-end principal point network is unimpeded.
In another embodiment, branch network access equipment can also comprise: route reduction unit 14, and this unit is used for when detecting that the former routed ip address of described far-end principal point gateway can reach, and reactivates the route of former routed ip address.
Below, several embodiments of the fault detect processing method provided based on aforementioned standby system are described by the present invention.
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 3G communication module detects that wired primary link of branch network access equipment breaks down, start described 3G link communication pattern, and by the data flow handoff of described branch network access equipment to 3G wireless backup link;
When wired primary link that step 102, network management platform monitor described branch network access equipment breaks down, to webmaster, personnel send signalling trouble.
3G wireless link can well solve wire link as backup and back up the high cost brought, be subject to the problem of location resources and environment restriction, the dependent failure characteristic issues of two wire link can also be avoided simultaneously, thus the practical needs of the link backup of public institution of government and enterprises and commercial network can be met.
After by the data flow handoff of described branch network access equipment to 3G wireless backup link, when 3G communication module can also be recovered normal at the wired primary link monitoring described branch network access equipment, data flow is reverted back wired primary link, network management platform can monitor fault restoration in time, and shows.
As shown in Figure 6, be the schematic flow sheet of another embodiment of fault detect processing method of the present invention.Also consider that far-end principal point route cannot be communicated with the service disruption that may bring or service cannot be carried out, because herein is provided following operating process in the present embodiment:
Step 201, described branch network access equipment detect based on the former routed ip address of open shortest route moving heat source to far-end principal point gateway;
Step 202, when described branch network access equipment cannot detect the former routed ip address of described far-end principal point gateway, in open shortest route moving heat source territory, select corresponding reached at routed ip address according to priority rule.
By the present embodiment, remote data transmission can be realized and do not interrupt.When branch network access equipment detects that the former routed ip address of described far-end principal point gateway can reach, the route of former routed ip address can be reactivated.
Below by a concrete case, the embodiment of the present invention is described.In present case, far-end principal point have employed two Juniper netscreen fire compartment walls as line outlet VPN device, and is encrypted transfer of data by the router (network access equipment) of IPSec mode and branch.The network element device of far-end principal point all have employed ospf protocol, and the router of branch is by VPN circuit and use static routing to point to far-end principal point.Juniper netscreen fire compartment wall distribution again branch be routed on nucleus equipment, determine the priority of various route by detecting outlet IP address, such as the first outlet fire compartment wall issues route 10.67.14.64/29 by OSPF, and weighted value is set to 10; Second outlet fire compartment wall issues route 10.67.14.65/29 by OSPF, and weighted value is set to 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, this branch is caused to access, the ADSL of this branch also breaks down simultaneously, link-local interrupts, these two kinds of failure conditions occur simultaneously, and now the router of branch will start 3G link communication pattern, by data flow handoff to 3G wireless backup link; And it is unreachable to 10.67.14.64/29 router by 3G wireless backup link detecting, then enabling weighted value according to priority rule is that the 10.67.14.65/29 of 20 is as down hop route, because this 10.67.14.65/29 route can reach, thus achieve business recovery.
Network management platform by SMS notification webmaster personnel, is repaired local ADSL and far-end principal point link in time.When after local fault restoration, data flow is reverted back wire link by 3G wireless backup link, and automatically interrupts transfer of data.When principal point far-end fault is repaired, then reactivate the target route that weight is the 10.67.14.64/29 of 10.
Above-mentioned case only illustrates intuitively in order to compare the present invention, but it should be noted, the various conditions in this case are example, and should not be construed as limiting the scope of the invention.
One of ordinary skill in the art will appreciate that: all or part of step realizing said method embodiment can have been come by the hardware that program command is relevant, aforesaid program can be stored in a computer read/write memory medium, this program, when performing, performs the step comprising said method embodiment; And aforesaid storage medium comprises: ROM, RAM, magnetic disc or CD etc. various can be program code stored medium.
Finally should be noted that: above embodiment is only in order to illustrate that technical scheme of the present invention is not intended to limit; Although with reference to preferred embodiment to invention has been detailed description, those of ordinary skill in the field are to be understood that: still can modify to the specific embodiment of the present invention or carry out equivalent replacement to portion of techniques feature; And not departing from the spirit of technical solution of the present invention, it all should be encompassed in the middle of the technical scheme scope of request of the present invention protection.
Claims (6)
1. a standby system, comprising:
Branch network access equipment, at up direction by wired primary link and core network communications, and provides network access facility for terminal;
3G communication module, is connected on the interface of described network access equipment outward or is built in described network access equipment, for described branch network access equipment provides 3G wireless backup link;
Network management platform, is connected with described branch network access equipment with 3G wireless backup link by wired primary link, for the monitoring state to wired primary link and 3G wireless backup link;
Wherein, described branch network access equipment also comprises:
Principal point gateway inspection unit, for detecting based on the former routed ip address of open shortest route moving heat source to far-end principal point gateway;
Route reselection unit, during for the former routed ip address of described far-end principal point gateway being detected, selects corresponding reached at routed ip address according to priority rule in open shortest route moving heat source territory;
Described network management platform also comprises:
Route reduction unit, for when detecting that the former routed ip address of described far-end principal point gateway can reach, reactivates the route of former routed ip address.
2. standby system according to claim 1, wherein said 3G communication module comprises:
Link failure detection unit, the failure condition for the wired primary link to described branch network access equipment detects;
Backup mode converting unit, for when detecting that wired primary link of described branch network access equipment breaks down, starts 3G link communication pattern, and by the data flow handoff of described branch network access equipment to 3G wireless backup link.
3. standby system according to claim 2, wherein said 3G communication module also comprises:
Backup mode reduction unit, for when detecting that wired primary link of described branch network access equipment recovers normal, reverts back wired primary link by data flow.
4. standby system according to claim 2, wherein said network management platform comprises:
Link monitoring unit, for based on the monitoring state of Simple Network Management Protocol to described wired primary link and 3G wireless backup link;
Malfunction notification unit, when the wired primary link for monitoring described branch network access equipment breaks down, to webmaster, personnel send signalling trouble.
5., based on a fault detect processing method for the arbitrary described standby system of Claims 1 to 4, comprising:
When 3G communication module detects that wired primary link of branch network access equipment breaks down, start described 3G link communication pattern, and by the data flow handoff of described branch network access equipment to 3G wireless backup link;
When wired primary link that network management platform monitors described branch network access equipment breaks down, to webmaster, personnel send signalling trouble;
Wherein, also comprise:
Described branch network access equipment detects based on the former routed ip address of open shortest route moving heat source to far-end principal point gateway;
When described branch network access equipment cannot detect the former routed ip address of described far-end principal point gateway, in open shortest route moving heat source territory, select corresponding reached at routed ip address according to priority rule;
After selecting corresponding reached at routed ip address, also comprise:
When described branch network access equipment detects that the former routed ip address of described far-end principal point gateway can reach, reactivate the route of former routed ip address.
6. fault detect processing method according to claim 5, wherein after by the data flow handoff of described branch network access equipment to 3G wireless backup link, also comprises:
When wired primary link that described 3G communication module monitors described branch network access equipment recovers normal, data flow is reverted back wired primary link.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110020872.0A CN102546222B (en) | 2010-12-07 | 2011-01-19 | Backup system and fault detection and processing method |
Applications Claiming Priority (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010105775060 | 2010-12-07 | ||
| CN201010577506.0 | 2010-12-07 | ||
| CN201010577506 | 2010-12-07 | ||
| CN201110020872.0A CN102546222B (en) | 2010-12-07 | 2011-01-19 | Backup system and fault detection and processing method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102546222A CN102546222A (en) | 2012-07-04 |
| CN102546222B true CN102546222B (en) | 2015-07-01 |
Family
ID=46352231
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201110020872.0A Active CN102546222B (en) | 2010-12-07 | 2011-01-19 | Backup system and fault detection and processing method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102546222B (en) |
Families Citing this family (19)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20140036655A (en) * | 2012-09-17 | 2014-03-26 | 엘지이노텍 주식회사 | The mobile router |
| US9148336B2 (en) | 2012-11-19 | 2015-09-29 | International Business Machines Corporation | Resilient routing based on a multi-channel model for emergency management |
| CN103457774A (en) * | 2013-09-05 | 2013-12-18 | 深圳市共进电子股份有限公司 | Method for achieving network double-uplink automatic switchover backup |
| CN103490948A (en) * | 2013-09-06 | 2014-01-01 | 华为技术有限公司 | Method and device for predicting network performance |
| CN104753714B (en) * | 2013-12-31 | 2018-06-15 | 华为技术有限公司 | Method for processing business in the network equipment and network |
| CN104917689A (en) * | 2014-03-14 | 2015-09-16 | 中兴通讯股份有限公司 | Intelligent dial on-demand realization method and system and access router |
| CN104159259B (en) * | 2014-08-26 | 2018-06-08 | 北京智谷技术服务有限公司 | Wireless communications method and wireless communication device |
| CN105721191B (en) * | 2014-12-04 | 2019-04-09 | 哈尔滨海能达科技有限公司 | A kind of link failure processing method, system and wireless backup gateway |
| CN104602286B (en) * | 2015-01-13 | 2018-12-25 | 新华三技术有限公司 | The method and device of STA communication failure positioning |
| CN105513304B (en) * | 2016-01-13 | 2020-07-17 | 华侨大学 | But cell-phone APP controls voice and video recognition alarm of rolling slats door |
| CN106789737B (en) * | 2016-12-30 | 2019-10-18 | 北京东土军悦科技有限公司 | A kind of command link communication programming method and system ensureing emergency system |
| CN109218045A (en) * | 2017-06-30 | 2019-01-15 | 中兴通讯股份有限公司 | A kind of link switch-over method and device |
| CN107257300B (en) * | 2017-08-09 | 2018-08-31 | 广州市大为通信有限公司 | A kind of 4G access devices of wireless backup, system and method |
| CN107623604A (en) * | 2017-10-24 | 2018-01-23 | 北京艾恩斯网络科技有限公司 | mesh network backbone node equipment and data transmission method, mesh network system |
| CN107807875A (en) * | 2017-12-13 | 2018-03-16 | 郑州云海信息技术有限公司 | A kind of system and method for power ＆ environment supervision |
| CN108234219A (en) * | 2018-01-28 | 2018-06-29 | 厦门四信通信科技有限公司 | It is a kind of to realize that three links automatically switch the method for online in router gateway |
| CN110519148B (en) * | 2019-07-25 | 2022-01-18 | 深圳震有科技股份有限公司 | Method, system and storage medium for establishing VPN channel by multilink backup |
| CN112994929A (en) * | 2021-02-04 | 2021-06-18 | 北京西鼎众合技术有限公司 | Network transmission method and system based on main and standby link switching |
| CN113542005A (en) * | 2021-06-01 | 2021-10-22 | 浙江捷创方舟数字技术有限公司 | Backup system based on 5G network and WiFi6 technology |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1370034A1 (en) * | 2002-06-06 | 2003-12-10 | Siemens Aktiengesellschaft | Fault Tolerant Gateway Cluster |
| CN1812342A (en) * | 2006-01-23 | 2006-08-02 | 北京朗通环球科技有限公司 | Link backup method and apparatus for computer network |
| CN101707571A (en) * | 2009-09-23 | 2010-05-12 | 李悦 | Power line and wireless dual-network routing method |
| CN101841429A (en) * | 2010-04-30 | 2010-09-22 | 广州合立正通信息网络集成有限公司 | Method for implementing backup of wireless IP network, 3G and GPRS link |
-
2011
- 2011-01-19 CN CN201110020872.0A patent/CN102546222B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1370034A1 (en) * | 2002-06-06 | 2003-12-10 | Siemens Aktiengesellschaft | Fault Tolerant Gateway Cluster |
| CN1812342A (en) * | 2006-01-23 | 2006-08-02 | 北京朗通环球科技有限公司 | Link backup method and apparatus for computer network |
| CN101707571A (en) * | 2009-09-23 | 2010-05-12 | 李悦 | Power line and wireless dual-network routing method |
| CN101841429A (en) * | 2010-04-30 | 2010-09-22 | 广州合立正通信息网络集成有限公司 | Method for implementing backup of wireless IP network, 3G and GPRS link |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102546222A (en) | 2012-07-04 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102546222B (en) | Backup system and fault detection and processing method | |
| US11323307B2 (en) | Method and system of a dynamic high-availability mode based on current wide area network connectivity | |
| CN102148677B (en) | Method for updating address resolution protocol table entries and core switch | |
| KR101706439B1 (en) | Redundant network connections | |
| CN101465859B (en) | Method and device for triggering main and standby interface board inverse switch | |
| CN101695036B (en) | Method and device for detecting IRF links | |
| WO2011120301A1 (en) | Method, apparatus and system for dual-homing protection switching | |
| EP3029883B1 (en) | Network protection method and apparatus, next-ring node, and system | |
| CN102088415B (en) | Method and device for MAC (media access control) address withdrawal | |
| CN102448095A (en) | Dual homing protection method and equipment | |
| CN101729305A (en) | Method and system for automatically restoring fault, and control network element | |
| WO2011120297A1 (en) | Protection method, system, provider edge and customer edge for virtual private lan services | |
| US20140050092A1 (en) | Load sharing method and apparatus | |
| CN103581025A (en) | Method and system for processing routing information and equipment | |
| CN103490951A (en) | Bidirectional forwarding detection method in multi-hop link on basis of BFD | |
| CN103220189B (en) | Multi-active detection (MAD) backup method and equipment | |
| CN103067956B (en) | Ipsec tunnel backup and changing method and equipment in 3G network environment | |
| EP2613477B1 (en) | Method for triggering route switching and service provider-end provider edge device | |
| CN101909006A (en) | BFD (Bidirectional Forwarding Detection) message sending and receiving methods as well as device and communication system thereof | |
| CN109194592B (en) | Method and system for solving island problem in multi-link network | |
| CN101795232A (en) | Network failure treating method and device | |
| CN104579729A (en) | CGN (carrier-grade net address translation) single board fault informing method and device | |
| WO2014101125A1 (en) | Aggregation group link negotiation method, device and system | |
| CN104702498A (en) | Method and device for reducing the number of optical connections through coordination protection | |
| CN102833774B (en) | The processing method of a kind of IP wireless access network system and primary pseudo-lines fault thereof |
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 |