CN102255633A - Method and system for multi-stand user backup - Google Patents
Method and system for multi-stand user backup Download PDFInfo
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- CN102255633A CN102255633A CN2010101778322A CN201010177832A CN102255633A CN 102255633 A CN102255633 A CN 102255633A CN 2010101778322 A CN2010101778322 A CN 2010101778322A CN 201010177832 A CN201010177832 A CN 201010177832A CN 102255633 A CN102255633 A CN 102255633A
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- multimachine frame
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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
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- 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
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Abstract
The invention provides a method and a system for multi-stand user backup. The method comprises the following steps that: A, a mainly-used service node (SN) and a standby SN are negotiated by an SN through a multi-stand link aggregation control protocol and a user is accessed by an access node (AN); B, the mainly-used SN backs up conversation information of an on-line user to the standby SN in real time; C, when there is a fault on the mainly-used SN or on up and down links, the standby SN enables main/standby switching to be realized through the multi-stand link aggregation control protocol; D, the switched mainly-used SN continuously maintains an original conversation of the user according to the conversation information of the user, wherein the conversation information has been backed up in real time. According to invention, mutual backup of equipment between different manufacturers can be allowed and current broadband services can be well expanded.
Description
Technical field
The present invention relates to network communication field, particularly a kind of method and system of multimachine frame user ID.
Background technology
Along with service node (Service Node, SN), as broadband remote access servers (BroadbandRemote Access Server, BRAS), business router (Service Router, SR) etc. the number of broadband customers that inserts is more and more, the broadband user is more and more higher to the high reliability request in broadband, and therefore, Carrier Requirements is also more and more higher to the access of user ID.
The SN node is the service control network element of broadband network, is playing the part of the key player of user management, customer service control in network.
Prior art is to use 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 specification requirement (Access Node, AN) or the different AN in the same double layer network insert a plurality of up SN, elect the active and standby SN of using by VRRP, main online user's information is backed up in realtime on the standby SN with SN.
When finding that the process master transmits fault with the SN flow, carry out active and standby switching by VRRP, new master continues to keep the original session of user with SN after switching, and the guarantee customer service is not interrupted.
Multimachine frame link aggregation technology is a kind of like this technology, two SN through consultation, will be separately the part physical link be placed on same logic LAG (link aggregation group) and be connected to same AN, to can't see up be 2 SN to AN like this, aggregated links when AN thinks up is connected to a logic SN.
Prior art uses VRRP to determine active and standby selection and active and standby switching in two-shipper or multi-host hot swap, and prior art has following deficiency:
1, because existing networking AN tends to use link aggregation (LAG) to insert the user by SN, so prior art need use VRRP to realize the fusion of 2 technology on the basis of LAG, realizes complexity.
2, in the prior art, AN thinks and inserts different SN by 2 different physics or logic aggregated links, and therefore physical link or the polymerization logical links that AN can perceive SN when switching switches.Transmit because the forwarding mechanism of AN is " a MAC+ outgoing interface ", AN perceived outgoing interface and changed this moment, in order to make the correct forwarded upstream of AN, SN need switching become main with after, the MAC (medium access control sublayer agreement) that goes to refresh on the AN transmits.Therefore, when switching, SN equipment has increased extra processing burden.
Summary of the invention
The objective of the invention is to, a kind of method of multimachine frame user ID is provided, in the time of can using AN to pass through the access of multimachine frame link aggregation, utilize the characteristic of multimachine frame link aggregation itself to realize active and standby selection and switching, and descending AN perception alleviates the extra processing burden of SN equipment less than active and standby switching in handoff procedure.
Another object of the present invention is to, a kind of system of multimachine frame user ID is provided, in the time of can using AN to pass through the access of multimachine frame link aggregation, utilize the characteristic of multimachine frame link aggregation itself to realize active and standby selection and switching, and descending AN perception alleviates the extra processing burden of SN equipment less than active and standby switching in handoff procedure.
The method of multimachine frame user ID of the present invention comprises the following steps:
A: service node SN negotiates primary, spare SN by multimachine frame Link Aggregation Control Protocol, and inserts the user by access node AN;
B: described master with SN with online user's the session information described standby SN that backs up in realtime;
C: when described master broke down with SN or uplink downlink, described standby SN realized active and standby switching by multimachine frame Link Aggregation Control Protocol;
D: the master after the switching continues to keep the original session of user with the user's that the SN basis is backed up in realtime session information.
Wherein, in described steps A: when the user inserts, the gateway MAC Address that the main medium access control sublayer agreement MAC Address that negotiates by described multimachine frame Link Aggregation Control Protocol with SN inserts as the user.
Wherein, when described fault recovery, further comprise the following steps:
E: current master all gives current standby SN with SN synchronously with online user's session information;
F: switch by the state of described multimachine frame Link Aggregation Control Protocol to current active and standby SN;
G: the master after the switching continues to keep the original session of user with the user's that the SN basis is backed up in realtime session information, and when user session state changed, simultaneous session information was given the standby SN after switching in real time.
Wherein, according to the active and standby SN load condition of link separately, by described multimachine frame Link Aggregation Control Protocol consult active and standby SN separately link respectively user's access is shared.
Wherein, described master is an one-to-many with SN and standby SN, and perhaps main is many-one with SN and standby SN.
The system of multimachine frame user ID of the present invention, comprise AN, main with SN and standby SN, wherein, the main SN that uses, be used for and standby SN between operation multimachine frame Link Aggregation Control Protocol, and negotiate by described multimachine frame Link Aggregation Control Protocol main when use SN, and by access node AN access user; And with online user's the session information standby SN that backs up in realtime; Standby SN, be used for and main with operation multimachine frame Link Aggregation Control Protocol between the SN, and when breaking down, realize active and standby switching by described multimachine frame Link Aggregation Control Protocol with SN or uplink downlink main, continue to keep the original session of user according to the user's who backs up in realtime session information.
Wherein, described master uses SN, is further used for when the user inserts, the gateway MAC Address that the MAC Address of using multimachine frame Link Aggregation Control Protocol to negotiate inserts as the user.
Wherein, when described fault recovery, current master uses SN, is used for all giving current standby SN synchronously with online user's session information, and switches to its current master standby with state by described multimachine frame Link Aggregation Control Protocol; Current standby SN, be used for its current stand-by state being switched to the main state of using by described multimachine frame Link Aggregation Control Protocol, and continue to keep the original session of user according to the user's who backs up in realtime session information, and when user session state changed, simultaneous session information was given the standby SN after switching in real time.
Wherein, described active and standby SN is used for according to the load condition of link separately, by described multimachine frame Link Aggregation Control Protocol consult active and standby SN separately link respectively to sharing that the user inserts.
Wherein, described master is an one-to-many with SN and standby SN, and perhaps main is many-one with SN and standby SN.
Beneficial effect of the present invention: according to the method and system of multimachine frame user ID of the present invention, in the time of can using AN to pass through the access of multimachine frame link aggregation, utilize the characteristic of multimachine frame link aggregation itself to realize active and standby selection and switching, and descending AN perception is less than active and standby switching in handoff procedure, therefore the mac that also need not to refresh AN transmits, thereby make AN reach seamless switching, technology realizes simple, has alleviated the extra processing burden of SN equipment.
Description of drawings
Fig. 1 is the flow chart of the user conversation keepalive method of the embodiment of the invention;
Fig. 2 is a network topology schematic diagram of the present invention.
Embodiment
Below, 1～2 method and system of describing multimachine frame user ID of the present invention in detail with reference to the accompanying drawings.
As shown in Figure 1, the method for the multimachine frame user ID of the embodiment of the invention comprises the following steps:
Step 100: service node SN negotiates primary, spare SN by multimachine frame Link Aggregation Control Protocol, and inserts the user by access node AN.
Wherein, after negotiating active and standby SN by multimachine frame link aggregation technology, aggregated links between standby SN setting and the AN is unavailable, the master can use with the aggregated links between SN setting and the AN, the master inserts dynamic host allocation protocol (Dynamic Host Configuration Protocol, DHCP) user and PPPoE user with SN.In addition, when the user inserts, the gateway MAC Address that the main MAC Address of using multimachine frame Link Aggregation Control Protocol to negotiate with SN inserts as the user.
Step 200: main with SN with online user's the session information standby SN that backs up in realtime.
Step 300: when the master broke down with SN or uplink downlink, described standby SN realized active and standby switching by multimachine frame Link Aggregation Control Protocol.For example: when the master uses SN node or uplink downlink fault, standby SN is used the switching of state to the master by stand-by state by multimachine frame Link Aggregation Control Protocol realization down link, it is available after the switching to be that the descending access of standby SN user's aggregated links port is changed to, and mainly is changed to unavailable with the descending aggregated links port that inserts the user of SN.This moment is because for AN, thinking up is a logic aggregated links, the active and standby switching of SN is the part physical link state change in the logic aggregated links for AN, AN is to the outgoing interface (the aggregated links interface does not have change) of the forwarded upstream of SN, therefore the AN perception is switched less than SN, so SN also need not to go the MAC that refreshes AN to show by the mode that gratuitous ARP takes place.
Step 400: the master after the switching continues to keep the original session of user with the user's that the SN basis is backed up in realtime session information.
Step 500: after fault recovery, current master all gives current standby SN with SN synchronously with online user's session information; Wherein, in step 500, if there is other standby SN, when user session state changed, simultaneous session information was given current standby SN to so new master in real time with SN;
Step 600: switch by the state of described multimachine frame Link Aggregation Control Protocol to current active and standby SN;
Step 700: the master after the switching continues to keep the original session of user with the user's that the SN basis is backed up in realtime session information, and when user session state changed, simultaneous session information was given the standby SN after switching in real time.
In addition, in the method for the invention, can be according to the active and standby SN load condition of link separately, by this multimachine frame Link Aggregation Control Protocol consult active and standby SN separately link respectively user's access is shared.In addition, when main descending aggregated links partial fault with SN, can recently judge whether by the percentage of faulty link and intact link and need switch user's access link.
As shown in Figure 2, the system of multimachine frame user ID of the present invention comprises descending convergence switch, main with SN and standby SN.Wherein, main use SN, be used for and standby SN between operation multimachine frame Link Aggregation Control Protocol, and negotiate mainly when use SN by described multimachine frame Link Aggregation Control Protocol, and pass through access node AN access user; And with online user's the session information standby SN that backs up in realtime; Standby SN, be used for and main with operation multimachine frame Link Aggregation Control Protocol between the SN, and when breaking down, realize active and standby switching by described multimachine frame Link Aggregation Control Protocol with SN or uplink downlink main, continue to keep the original session of user according to the user's who backs up in realtime session information.
Wherein, the master uses SN, is further used for when the user inserts, the gateway MAC Address that the MAC Address of using multimachine frame Link Aggregation Control Protocol to negotiate inserts as the user.
In addition, when above-mentioned fault recovery, current master uses SN, is used for all giving current standby SN synchronously with online user's session information, and switches to its current master standby with state by described multimachine frame Link Aggregation Control Protocol; Current standby SN, be used for its current stand-by state being switched to the main state of using by described multimachine frame Link Aggregation Control Protocol, and continue to keep the original session of user according to the user's who backs up in realtime session information, and when user session state changed, simultaneous session information was given the standby SN after switching in real time.
In system of the present invention, active and standby SN is used for according to the load condition of link separately, by this multimachine frame Link Aggregation Control Protocol consult active and standby SN separately link respectively to sharing that the user inserts.In addition, when main descending aggregated links partial fault with SN, can recently judge whether by the percentage of faulty link and intact link and need switch user's access link.
In addition, because AN thinks that the opposite end is that an end points is a bundle link in logic, perception is a plurality of SN equipment less than the opposite end, therefore can support 1 by this multimachine frame Link Aggregation Control Protocol realization user ID: the backup of N type.That is, main is one-to-many with SN and standby SN, and perhaps main is many-one with SN and standby SN.
In sum, method and system according to multimachine frame user ID of the present invention, whether to mutually redundant two SN equipment is that the equipment of same manufacturer is not done requirement, promptly can realize the interoperability of equipment between different vendor, thereby existing broadband services has been carried out expansion preferably, and the application space is more extensive.
More than be in order to make those of ordinary skills understand the present invention; and to detailed description that the present invention carried out; but can expect; in the scope that does not break away from claim of the present invention and contained, can also make other variation and modification, these variations and revising all in protection scope of the present invention.
Claims (10)
1. the method for a multimachine frame user ID is characterized in that, comprises the following steps:
A: service node SN negotiates primary, spare SN by multimachine frame Link Aggregation Control Protocol, and inserts the user by access node AN;
B: described master with SN with online user's the session information described standby SN that backs up in realtime;
C: when described master broke down with SN or uplink downlink, described standby SN realized active and standby switching by multimachine frame Link Aggregation Control Protocol;
D: the master after the switching continues to keep the original session of user with the user's that the SN basis is backed up in realtime session information.
2. the method for multimachine frame user ID as claimed in claim 1 is characterized in that, in described steps A:
When the user inserts, the gateway MAC Address that the main medium access control sublayer agreement MAC Address that negotiates by described multimachine frame Link Aggregation Control Protocol with SN inserts as the user.
3. the method for multimachine frame user ID as claimed in claim 1 or 2 is characterized in that, when described fault recovery, further comprises the following steps:
E: current master all gives current standby SN with SN synchronously with online user's session information;
F: switch by the state of described multimachine frame Link Aggregation Control Protocol to current active and standby SN;
G: the master after the switching continues to keep the original session of user with the user's that the SN basis is backed up in realtime session information, and when user session state changed, simultaneous session information was given the standby SN after switching in real time.
4. the method for multimachine frame user ID as claimed in claim 3 is characterized in that, according to the active and standby SN load condition of link separately, by described multimachine frame Link Aggregation Control Protocol consult active and standby SN separately link respectively user's access is shared.
5. the method for multimachine frame user ID as claimed in claim 3 is characterized in that, described master is an one-to-many with SN and standby SN, and perhaps main is many-one with SN and standby SN.
6. the system of a multimachine frame user ID is characterized in that, comprises AN, main with SN and standby SN, wherein,
Main use SN, be used for and standby SN between operation multimachine frame Link Aggregation Control Protocol, and negotiate mainly when use SN by described multimachine frame Link Aggregation Control Protocol, and pass through access node AN access user; And with online user's the session information standby SN that backs up in realtime;
Standby SN, be used for and main with operation multimachine frame Link Aggregation Control Protocol between the SN, and when breaking down, realize active and standby switching by described multimachine frame Link Aggregation Control Protocol with SN or uplink downlink main, continue to keep the original session of user according to the user's who backs up in realtime session information.
7. the system of multimachine frame user ID as claimed in claim 6 is characterized in that, described master uses SN, is further used for when the user inserts, the gateway MAC Address that the MAC Address of using multimachine frame Link Aggregation Control Protocol to negotiate inserts as the user.
8. as the system of claim 6 or 7 described multimachine frame user IDs, it is characterized in that, when described fault recovery, the current main SN that uses, be used for all giving current standby SN synchronously, and switch to its current master standby with state by described multimachine frame Link Aggregation Control Protocol with online user's session information;
Current standby SN, be used for its current stand-by state being switched to the main state of using by described multimachine frame Link Aggregation Control Protocol, and continue to keep the original session of user according to the user's who backs up in realtime session information, and when user session state changed, simultaneous session information was given the standby SN after switching in real time.
9. the system of multimachine frame user ID as claimed in claim 8 is characterized in that, described active and standby SN is used for according to the load condition of link separately, by described multimachine frame Link Aggregation Control Protocol consult active and standby SN separately link respectively to sharing that the user inserts.
10. the system of multimachine frame user ID as claimed in claim 8 is characterized in that, described master is an one-to-many with SN and standby SN, and perhaps main is many-one with SN and standby SN.
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 |
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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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| CN102255633B CN102255633B (en) | 2015-08-12 |
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Cited By (6)
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| CN103067113A (en) * | 2012-12-24 | 2013-04-24 | 中兴通讯股份有限公司 | Method and device capable of achieving peer-to-peer (PTP) time synchronization and based on aggregation links |
| CN104468151A (en) * | 2013-09-13 | 2015-03-25 | 华耀(中国)科技有限公司 | System and method for keeping TCP (Transmission Control Protocol) session during cluster switching |
| CN105024836A (en) * | 2014-04-15 | 2015-11-04 | 中国移动通信集团广东有限公司 | Switching method of main use service router SR and standby SR, apparatus and the 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 |
| CN106027320A (en) * | 2016-07-25 | 2016-10-12 | 福建富士通信息软件有限公司 | Method for achieving many-to-one hot standby of Portal gateways |
| CN108667640A (en) * | 2017-03-29 | 2018-10-16 | 北京华为数字技术有限公司 | Communication means and equipment, network access system |
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| US9288140B2 (en) | 2012-07-09 | 2016-03-15 | Coriant Operations, Inc. | Multichassis failover and recovery for MLPPP wireless backhaul |
| 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 |
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| CN103067113A (en) * | 2012-12-24 | 2013-04-24 | 中兴通讯股份有限公司 | Method and device capable of achieving peer-to-peer (PTP) time synchronization and based on aggregation links |
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| CN104468151A (en) * | 2013-09-13 | 2015-03-25 | 华耀(中国)科技有限公司 | System and method for keeping TCP (Transmission Control Protocol) session during cluster switching |
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| CN105024836A (en) * | 2014-04-15 | 2015-11-04 | 中国移动通信集团广东有限公司 | Switching method of main use service router SR and standby SR, apparatus and the 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 |
| CN106027320A (en) * | 2016-07-25 | 2016-10-12 | 福建富士通信息软件有限公司 | Method for achieving many-to-one hot standby of Portal gateways |
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| CN108667640A (en) * | 2017-03-29 | 2018-10-16 | 北京华为数字技术有限公司 | Communication means and equipment, network access system |
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Also Published As
| Publication number | Publication date |
|---|---|
| WO2011143893A1 (en) | 2011-11-24 |
| CN102255633B (en) | 2015-08-12 |
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