CN102255633B - A kind of method and system of multi-stand user backup - Google Patents
A kind of method and system of multi-stand user backup Download PDFInfo
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- CN102255633B CN102255633B CN201010177832.2A CN201010177832A CN102255633B CN 102255633 B CN102255633 B CN 102255633B CN 201010177832 A CN201010177832 A CN 201010177832A CN 102255633 B CN102255633 B CN 102255633B
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- user
- primary
- subsequent use
- control protocol
- link aggregation
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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
- H04L41/0663—Performing the actions predefined by failover planning, e.g. switching to standby network elements
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L69/00—Network arrangements, protocols or services independent of the application payload and not provided for in the other groups of this subclass
- H04L69/14—Multichannel or multilink protocols
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
- Y02D30/00—Reducing energy consumption in communication networks
- Y02D30/50—Reducing energy consumption in communication networks in wire-line communication networks, e.g. low power modes or reduced link rate
Abstract
The invention provides a kind of method and system of multi-stand user backup, wherein, the method comprises the following steps: A: service node SN negotiates primary, spare SN by multi-frame Link Aggregation Control Protocol, and by access node AN access user; The session information of online user to be backed up in realtime described SN for subsequent use by B: described primary SN; C: when described primary SN or uplink downlink break down, described SN for subsequent use realizes active-standby switch by multi-frame Link Aggregation Control Protocol; D: the primary SN after switching continues to maintain the original session of user according to the session information of the user backed up in realtime.The present invention can realize the mutual backup of equipment between different vendor, extends existing broadband services preferably.
Description
Technical field
The present invention relates to network communication field, particularly a kind of method and system of multi-stand user backup.
Background technology
Along with service node (Service Node, SN), as broadband remote access servers (BroadbandRemote Access Server, BRAS), business router (Service Router, etc. SR) number of broadband customers of access gets more and more, the high reliability request of broadband user to broadband is more and more higher, and therefore, the access of Carrier Requirements to user ID is also more and more higher.
SN node is the service control network element of broadband network, plays the key player of user management, customer service control in a network.
Prior art uses Virtual Router Redundancy Protocol (Virtual Router RedundancyProtocol, VRRP) technology realizes two-node cluster hot backup or multi-host hot swap, the same access node of this technical requirement (Access Node, AN) the different AN or in same double layer network access multiple up SN, elect standby usage SN by VRRP, the information of online user is backed up in realtime on SN for subsequent use by primary SN.
When discovery is through primary SN traffic forwarding fault, carry out active-standby switch by VRRP, primary SN new after switching continues to maintain the original session of user, and ensures that customer service is not interrupted.
Multi-frame link aggregation technology is so a kind of technology, two SN through consultation, respective part physical link is placed on same logic LAG (link aggregation group) and is connected to same AN, it is 2 SN that such AN can't see up, aggregated links when AN thinks up, is connected to a logic SN.
Prior art uses VRRP to determine active and standby selection and active-standby switch in two-shipper or multi-host hot swap, and prior art has following deficiency:
1, because existing networking AN often uses link aggregation (LAG) by SN access user, therefore prior art needs the fusion using VRRP to realize 2 technology on the basis of LAG, realizes complicated.
2, in prior art, AN thinks and accesses different SN by 2 different physics or logical aggregate link, and therefore when switching, AN can perceive the physical link of SN or polymerization logical links switches.Because the forwarding mechanism of AN is that " MAC+ outgoing interface " forwards, now AN has perceived outgoing interface and has changed, in order to make the correct forwarded upstream of AN, SN need switching become primary after, go the MAC (medium access control sublayer agreement) refreshed on AN to transmit.Therefore, while switching, SN equipment adds extra processing load.
Summary of the invention
The object of the invention is to, a kind of method of multi-stand user backup is provided, when AN can be used to pass through the access of multi-frame link aggregation, the characteristic of multi-frame link aggregation itself is utilized to realize active and standby selection and switching, and in handoff procedure, descending AN perception is less than active-standby switch, alleviates the processing load that SN equipment is extra.
Another object of the present invention is to, a kind of system of multi-stand user backup is provided, when AN can be used to pass through the access of multi-frame link aggregation, the characteristic of multi-frame link aggregation itself is utilized to realize active and standby selection and switching, and in handoff procedure, descending AN perception is less than active-standby switch, alleviates the processing load that SN equipment is extra.
The method of multi-stand user backup of the present invention, comprises the following steps:
A: service node SN negotiates primary, spare SN by multi-frame Link Aggregation Control Protocol, and by access node AN access user;
The session information of online user to be backed up in realtime described SN for subsequent use by B: described primary SN;
C: when described primary SN or uplink downlink break down, described SN for subsequent use realizes active-standby switch by multi-frame Link Aggregation Control Protocol;
D: the primary SN after switching continues to maintain the original session of user according to the session information of the user backed up in realtime.
Wherein, in described steps A: when user accesses, the gateway MAC address that the medium access control sublayer agreement MAC Address that primary SN is negotiated by described multi-frame Link Aggregation Control Protocol accesses as user.
Wherein, when described fault recovery, comprise the following steps: further
E: the session information of online user is all synchronized to current SN for subsequent use by current primary SN;
F: switched by the state of described multi-frame Link Aggregation Control Protocol to current active and standby SN;
G: the primary SN after switching continues to maintain the original session of user according to the session information of the user backed up in realtime, and when user session state changes, real-time synchronization session information gives the SN for subsequent use after switching.
Wherein, according to the load condition of active and standby SN link separately, by described multi-frame Link Aggregation Control Protocol consult active and standby SN separately link respectively the access of user is shared.
Wherein, described primary SN and SN for subsequent use is one-to-many, or primary SN and SN for subsequent use is many-one.
The system of multi-stand user backup of the present invention, comprise AN, primary SN and SN for subsequent use, wherein, primary SN, for running multi-frame Link Aggregation Control Protocol between SN for subsequent use, and when negotiating primary SN by described multi-frame Link Aggregation Control Protocol, and by access node AN access user; And SN for subsequent use that the session information of online user backed up in realtime to; SN for subsequent use, for running multi-frame Link Aggregation Control Protocol between primary SN, and when primary SN or uplink downlink break down, realize active-standby switch by described multi-frame Link Aggregation Control Protocol, continue to maintain the original session of user according to the session information of the user backed up in realtime.
Wherein, described primary SN, is further used for when user accesses, the gateway MAC address that the MAC Address using multi-frame Link Aggregation Control Protocol to negotiate accesses as user.
Wherein, when described fault recovery, current primary SN, for the session information of online user is all synchronized to current SN for subsequent use, and switches to for subsequent use by described multi-frame Link Aggregation Control Protocol by its current master state; Current SN for subsequent use, for its current stand-by state being switched to master state by described multi-frame Link Aggregation Control Protocol, and continue to maintain the original session of user according to the session information of the user backed up in realtime, and when user session state changes, real-time synchronization session information gives the SN for subsequent use after switching.
Wherein, described active and standby SN, for the load condition according to respective link, consults active and standby SN link sharing respectively to user's access separately by described multi-frame Link Aggregation Control Protocol.
Wherein, described primary SN and SN for subsequent use is one-to-many, or primary SN and SN for subsequent use is many-one.
Beneficial effect of the present invention: according to the method and system of multi-stand user backup of the present invention, when AN can be used to pass through the access of multi-frame link aggregation, the characteristic of multi-frame link aggregation itself is utilized to realize active and standby selection and switching, and descending AN perception is less than active-standby switch in handoff procedure, therefore the mac also without the need to refreshing AN transmits, thus making AN reach seamless switching, technology realizes simple, alleviates the processing load that SN equipment is extra.
Accompanying drawing explanation
Fig. 1 is the flow chart of the user conversation keepalive method of the embodiment of the present invention;
Fig. 2 is network topology schematic diagram of the present invention.
Embodiment
Below, the method and system of multi-stand user backup of the present invention are described in detail with reference to accompanying drawing 1 ~ 2.
As shown in Figure 1, the method for the multi-stand user backup of the embodiment of the present invention, comprises the following steps:
Step 100: service node SN negotiates primary, spare SN by multi-frame Link Aggregation Control Protocol, and by access node AN access user.
Wherein, after negotiating active and standby SN by multi-frame link aggregation technology, the aggregated links that SN for subsequent use is arranged between AN is unavailable, the aggregated links that primary SN is arranged between AN can be used, primary SN accesses dynamic host allocation protocol (Dynamic Host Configuration Protocol, DHCP) user and PPPoE user.In addition, when user accesses, the gateway MAC address that the MAC Address that primary SN uses multi-frame Link Aggregation Control Protocol to negotiate accesses as user.
Step 200: the session information of online user is backed up in realtime SN for subsequent use by primary SN.
Step 300: when primary SN or uplink downlink break down, described SN for subsequent use realizes active-standby switch by multi-frame Link Aggregation Control Protocol.Such as: when primary SN node or uplink downlink fault, SN for subsequent use realizes down link by the switching of stand-by state to master state by multi-frame Link Aggregation Control Protocol, after switching, namely the aggregated links port of the descending access user of SN for subsequent use is set to available, and the aggregated links port of the descending access user of primary SN is set to unavailable.Now due to for AN, thinking up is a logical aggregate link, the active-standby switch of SN changes for the part physical Link State AN just in a logical aggregate link, the outgoing interface (aggregated links interface does not become) of the forwarded upstream of AN to SN, therefore AN perception switches less than SN, and therefore SN also removes without the need to the mode by there is gratuitous ARP the MAC table refreshing AN.
Step 400: the primary SN after switching continues to maintain the original session of user according to the session information of the user backed up in realtime.
Step 500: after fault recovery, the session information of online user is all synchronized to current SN for subsequent use by current primary SN; Wherein, in step 500, if there is other SN for subsequent use, so new primary SN is when user session state changes, and real-time synchronization session information gives current SN for subsequent use;
Step 600: switched by the state of described multi-frame Link Aggregation Control Protocol to current active and standby SN;
Step 700: the primary SN after switching continues to maintain the original session of user according to the session information of the user backed up in realtime, and when user session state changes, real-time synchronization session information gives the SN for subsequent use after switching.
In addition, in the method for the invention, can according to the load condition of active and standby SN link separately, by this multi-frame Link Aggregation Control Protocol consult active and standby SN separately link respectively the access of user is shared.In addition, when the descending aggregated links partial fault of primary SN, can judge whether to need to switch user's access link by the percentage of faulty link and intact link.
As shown in Figure 2, the system of multi-stand user backup of the present invention, comprises descending convergence switch, primary SN and SN for subsequent use.Wherein, primary SN, for running multi-frame Link Aggregation Control Protocol between SN for subsequent use, and when negotiating primary SN by described multi-frame Link Aggregation Control Protocol, and by access node AN access user; And SN for subsequent use that the session information of online user backed up in realtime to; SN for subsequent use, for running multi-frame Link Aggregation Control Protocol between primary SN, and when primary SN or uplink downlink break down, realize active-standby switch by described multi-frame Link Aggregation Control Protocol, continue to maintain the original session of user according to the session information of the user backed up in realtime.
Wherein, primary SN, is further used for when user accesses, the gateway MAC address that the MAC Address using multi-frame Link Aggregation Control Protocol to negotiate accesses as user.
In addition, when above-mentioned fault recovery, current primary SN, for the session information of online user is all synchronized to current SN for subsequent use, and switches to for subsequent use by described multi-frame Link Aggregation Control Protocol by its current master state; Current SN for subsequent use, for its current stand-by state being switched to master state by described multi-frame Link Aggregation Control Protocol, and continue to maintain the original session of user according to the session information of the user backed up in realtime, and when user session state changes, real-time synchronization session information gives the SN for subsequent use after switching.
In the system of the present invention, active and standby SN, for the load condition according to respective link, consults active and standby SN link sharing respectively to user's access separately by this multi-frame Link Aggregation Control Protocol.In addition, when the descending aggregated links partial fault of primary SN, can judge whether to need to switch user's access link by the percentage of faulty link and intact link.
In addition, because AN thinks that opposite end be an end points is a bundle link in logic, perception is multiple SN equipment less than opposite end, therefore realizes by this multi-frame Link Aggregation Control Protocol the backup that user ID can support 1: N type.That is, primary SN and SN for subsequent use is one-to-many, or primary SN and SN for subsequent use is many-one.
In sum, according to the method and system of multi-stand user backup of the present invention, requirement is not done to the equipment whether mutually redundant two SN equipment are same manufacturer, namely the interoperability of equipment between different vendor can be realized, thus good expansion has been carried out to existing broadband services, application space is more extensive.
More than to make those of ordinary skill in the art understand the present invention; and to the detailed description that the present invention carries out; but can expect; not departing from the scope that claim of the present invention contains and can also make other changes and modifications, these changes and amendment are all in protection scope of the present invention.
Claims (10)
1. a method for multi-stand user backup, is characterized in that, comprises the following steps:
A: service node SN negotiates primary, spare SN by multi-frame Link Aggregation Control Protocol, and by access node AN access user;
The session information of online user to be backed up in realtime described SN for subsequent use by B: described primary SN;
C: when described primary SN or uplink downlink break down, described SN for subsequent use realizes active-standby switch by multi-frame Link Aggregation Control Protocol;
D: the primary SN after switching continues to maintain the original session of user according to the session information of the user backed up in realtime.
2. the method for multi-stand user backup as claimed in claim 1, is characterized in that, in described steps A:
When user accesses, the gateway MAC address that the medium access control sublayer agreement MAC Address that primary SN is negotiated by described multi-frame Link Aggregation Control Protocol accesses as user.
3. the method for multi-stand user backup as claimed in claim 1 or 2, is characterized in that, when described fault recovery, comprise the following steps: further
E: the session information of online user is all synchronized to current SN for subsequent use by current primary SN;
F: switched by the state of described multi-frame Link Aggregation Control Protocol to current active and standby SN;
G: the primary SN after switching continues to maintain the original session of user according to the session information of the user backed up in realtime, and when user session state changes, real-time synchronization session information gives the SN for subsequent use after switching.
4. the method for multi-stand user backup as claimed in claim 3, is characterized in that, according to the load condition of active and standby SN link separately, by described multi-frame Link Aggregation Control Protocol consult active and standby SN separately link respectively the access of user is shared.
5. the method for multi-stand user backup as claimed in claim 3, it is characterized in that, described primary SN and SN for subsequent use is one-to-many, or primary SN and SN for subsequent use is many-one.
6. a system for multi-stand user backup, is characterized in that, comprises AN, primary SN and SN for subsequent use, wherein,
Primary SN, for running multi-frame Link Aggregation Control Protocol between SN for subsequent use, and when negotiating primary SN by described multi-frame Link Aggregation Control Protocol, and by access node AN access user; And SN for subsequent use that the session information of online user backed up in realtime to;
SN for subsequent use, for running multi-frame Link Aggregation Control Protocol between primary SN, and when primary SN or uplink downlink break down, realize active-standby switch by described multi-frame Link Aggregation Control Protocol, continue to maintain the original session of user according to the session information of the user backed up in realtime.
7. the system of multi-stand user backup as claimed in claim 6, is characterized in that described primary SN is further used for when user accesses, the gateway MAC address that the MAC Address using multi-frame Link Aggregation Control Protocol to negotiate accesses as user.
8. the system of multi-stand user backup as claimed in claims 6 or 7, it is characterized in that, when described fault recovery, current primary SN, for the session information of online user is all synchronized to current SN for subsequent use, and by described multi-frame Link Aggregation Control Protocol, its current master state is switched to for subsequent use;
Current SN for subsequent use, for its current stand-by state being switched to master state by described multi-frame Link Aggregation Control Protocol, and continue to maintain the original session of user according to the session information of the user backed up in realtime, and when user session state changes, real-time synchronization session information gives the SN for subsequent use after switching.
9. the system of multi-stand user backup as claimed in claim 8, is characterized in that, described active and standby SN, for the load condition according to respective link, consults active and standby SN link sharing respectively to user's access separately by described multi-frame Link Aggregation Control Protocol.
10. the system of multi-stand user backup as claimed in claim 8, it is characterized in that, described primary SN and SN for subsequent use is one-to-many, or primary SN and SN for subsequent use is many-one.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010177832.2A CN102255633B (en) | 2010-05-20 | 2010-05-20 | A kind of method and system of multi-stand user backup |
| PCT/CN2010/077753 WO2011143893A1 (en) | 2010-05-20 | 2010-10-14 | Multi-rack user backup method and system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201010177832.2A CN102255633B (en) | 2010-05-20 | 2010-05-20 | A kind of method and system of multi-stand user backup |
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| CN102255633A CN102255633A (en) | 2011-11-23 |
| CN102255633B true CN102255633B (en) | 2015-08-12 |
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| CN201010177832.2A Active CN102255633B (en) | 2010-05-20 | 2010-05-20 | A kind of method and system of multi-stand user backup |
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| WO (1) | WO2011143893A1 (en) |
Families Citing this family (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9288140B2 (en) | 2012-07-09 | 2016-03-15 | Coriant Operations, Inc. | Multichassis failover and recovery for MLPPP wireless backhaul |
| CN103067113B (en) * | 2012-12-24 | 2015-08-12 | 中兴通讯股份有限公司 | Method and the device of PTP time synchronized is realized based on aggregated links |
| CN104468151B (en) * | 2013-09-13 | 2017-09-29 | 华耀(中国)科技有限公司 | A kind of system and method for keeping TCP sessions during cluster switching |
| CN105024836B (en) * | 2014-04-15 | 2020-01-07 | 中国移动通信集团广东有限公司 | Method and device for switching primary Service Router (SR) and standby SR and SR |
| CN105306358A (en) * | 2014-07-08 | 2016-02-03 | 中兴通讯股份有限公司 | Main and spare routing equipment, backup and switch method between equipment and routing system |
| CN106027320B (en) * | 2016-07-25 | 2019-04-02 | 福建富士通信息软件有限公司 | A method of realizing that Portal gateway many-one is hot standby |
| CN108667640B (en) * | 2017-03-29 | 2021-09-07 | 北京华为数字技术有限公司 | Communication method and device, and network access system |
| CN107395422B (en) * | 2017-07-27 | 2020-10-20 | 苏州浪潮智能科技有限公司 | Multi-frame management system |
| CN111865704B (en) * | 2020-09-24 | 2021-05-28 | 南京中兴软件有限责任公司 | Data transmission method, system and network equipment |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1941769A (en) * | 2005-10-01 | 2007-04-04 | 华为技术有限公司 | Method for agenting or duplicating mobile resident point in mobile IPv6 network |
| CN1997034A (en) * | 2006-12-21 | 2007-07-11 | 华为技术有限公司 | A method and system for protection of the link convergence group |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7668081B2 (en) * | 2006-11-10 | 2010-02-23 | Alcatel-Lucent Usa Inc. | Preemptive transmission protection scheme for data services with high resilience demand |
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- 2010-05-20 CN CN201010177832.2A patent/CN102255633B/en active Active
- 2010-10-14 WO PCT/CN2010/077753 patent/WO2011143893A1/en active Application Filing
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1941769A (en) * | 2005-10-01 | 2007-04-04 | 华为技术有限公司 | Method for agenting or duplicating mobile resident point in mobile IPv6 network |
| CN1997034A (en) * | 2006-12-21 | 2007-07-11 | 华为技术有限公司 | A method and system for protection of the link convergence group |
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| WO2011143893A1 (en) | 2011-11-24 |
| CN102255633A (en) | 2011-11-23 |
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