CN101778107B - State synchronization processing method and device - Google Patents
State synchronization processing method and device Download PDFInfo
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- CN101778107B CN101778107B CN201010003440.4A CN201010003440A CN101778107B CN 101778107 B CN101778107 B CN 101778107B CN 201010003440 A CN201010003440 A CN 201010003440A CN 101778107 B CN101778107 B CN 101778107B
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L67/00—Network arrangements or protocols for supporting network services or applications
- H04L67/01—Protocols
- H04L67/10—Protocols in which an application is distributed across nodes in the network
- H04L67/1095—Replication or mirroring of data, e.g. scheduling or transport for data synchronisation between network nodes
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L61/00—Network arrangements, protocols or services for addressing or naming
- H04L61/50—Address allocation
- H04L61/5007—Internet protocol [IP] addresses
- H04L61/5014—Internet protocol [IP] addresses using dynamic host configuration protocol [DHCP] or bootstrap protocol [BOOTP]
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L61/00—Network arrangements, protocols or services for addressing or naming
- H04L61/50—Address allocation
- H04L61/5053—Lease time; Renewal aspects
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L43/00—Arrangements for monitoring or testing data switching networks
- H04L43/10—Active monitoring, e.g. heartbeat, ping or trace-route
Abstract
The invention discloses a state synchronization processing method and a device. The method comprises the following steps: a user accesses a service node through DHCP, and the service node performs keep-alive detection for the accessing user; the service node detects abnormality of the user network and sends imperative lease prolongation information to the user, wherein the lease term stopping time of the imperative lease prolongation information is the lease term stopping time of a previous successful lease; and the service node receives the DHCP information from the user within the lease term of the imperative lease prolongation information and judges whether to delete items related to the user in the user table according to the type of the received DHCP information. The invention can ensure the DHCP state synchronization of the service node and the user.
Description
Technical field
The present invention relates to communication field, relate in particular to a kind of processing method and device of state synchronized.
Background technology
Along with IPoE (IP over Ethernet, IP based on Ethernet) extensive use of access way, DHCP (Dynamic Host Configuration Protocol, dynamic host allocation protocol) authenticated user is more and more general in the application of the public places such as hotel, airport.User is by DHCP agreement access SN (Service Node, service node) equipment, and SN management DHCP user also provides services on the Internet to user.
Whether SN conventionally can enliven and carry out keep-alive detection user; for example: SN is by ARP (Address Resolution Protocol; address resolution protocol) or additive method whether survey DHCP user active; if DHCP user to the active probe of SN without any response; think that user is inactive, SN needs releasing user resource to save the Internet resources of SN.When SN detects DHCP user when inactive, under existing application, SN can stop user's charging, thoroughly deletes user's list item, and force users rolls off the production line, and user needs again the process of DHCP applied address just can reach the standard grade.
Existing SN equipment is surveyed force users abnormal and that take to DHCP user and is rolled off the production line and delete subscriber's meter and may cause existing following problem.
With reference to figure 1, Fig. 1 is DHCP network of network topology schematic diagram in prior art.When occurring user uplink AN (Access Node, access node) and AG (Aggregation Node, aggregation node) during link down, because the link between AN and user does not interrupt, so at DHCP in the rental period, subscriber's main station cannot carry out sensing network fault by network interface card interface DOWN (fault), and subscriber's main station can not restarted the process that DHCP protocol stack goes to restart to obtain address.And now SN equipment can be surveyed extremely by user's keep-alive detection perception online user, force users rolls off the production line.What adopt due to prior art is on SN equipment, fully and completely to delete user's list item, so user must be restarted dhcp process, could again obtain address, starts normal accesses network.
But according to description above, because subscriber's main station network connects normal, the DHCP protocol stack of subscriber's main station own does not also know that it is rolled off the production line by SN pressure, so for example, at DHCP in the rental period (: the DHCP rental period is 2 hours), user's dhcp state machine can not discharge address, also dhcp process again not, so user still thinks that address obtains, but cannot accesses network.So a period of time (duration is less than the rental period) the interior user who probably appears at after fault recovery has the situation that but cannot surf the Net in IP address.
Simultaneously, if user network fault recovery, SN equipment also cannot be known, therefore on SN, this user's dhcp address discharges but subscriber's main station dhcp address not necessarily discharges, failed subs criber network is within the time in DHCP rental period so, and the dhcp state of DHCP user and SN is always in nonsynchronous state.
In sum, since known prior art is medium-term and long-term, existed existing SN to survey force users abnormal and that take to DHCP user rolls off the production line and deletes the nonsynchronous problem of dhcp state that subscriber's meter causes DHCP user and SN always, therefore be necessary to propose improved technological means, solve this problem.
Summary of the invention
Because prior art exists existing SN to survey force users abnormal and that take to DHCP user, roll off the production line and delete subscriber's meter and cause the nonsynchronous problem of dhcp state of DHCP user and SN and make the present invention, main purpose of the present invention is to provide a kind of processing method and device of state synchronized for this reason, wherein:
According to the processing method of the state synchronized of the embodiment of the present invention, comprise:
User is by DHCP access service node, and service node carries out keep-alive detection to the user of access; It is abnormal that service node detects user network, to user, sends and force to re-rent message, and wherein, the rental period dwell time that message is re-rented in pressure is the rental period dwell time of success last time lease; Service node receives the dhcp message from user forcing to re-rent in the rental period of message, according to the type of the dhcp message receiving, judges whether to delete in its subscriber's meter the list item about this user.
Preferably; when the type of described dhcp message is dhcp discover message; service node judges whether to delete in its subscriber's meter the list item about user according to the type of the dhcp message that receives; further comprise: service node sends acknowledge message according to the list item about user in subscriber's meter to user, and restart user's keep-alive to survey and process.
Preferably, the type of dhcp message is dhcp discover message, and service node judges whether to delete in its subscriber's meter about user's list item according to the type of the dhcp message that receives, further comprises: service node is deleted in its subscriber's meter the list item about user.
Preferably, the method further comprises: if service node does not receive the dhcp message from user forcing to re-rent in the rental period of message, delete in its subscriber's meter the list item about user.
Preferably, the method further comprises: service node detect user network abnormal after, user is stopped to charging.
According to the processing unit of the state synchronized of the embodiment of the present invention, comprise: detecting module, for the user of access service node is carried out to keep-alive detection; Sending module, detects user network for detecting module abnormal, to user, sends and forces to re-rent message, and wherein, the rental period dwell time that message is re-rented in pressure is the rental period dwell time of success last time lease; Receiver module, for receiving the dhcp message from user forcing to re-rent in the rental period of message; Processing module, judges whether to delete the subscriber's meter of service node about user's list item for the type of the dhcp message that receives according to receiver module.
Preferably, processing module further comprises with one of lower module: the first processing module, while being DHCP request message for the dhcp message receiving when described receiver module, according to the list item about user in subscriber's meter, to user, sending acknowledge message, and re-execute detecting module.The second processing module, while being dhcp discover message for the dhcp message receiving when described receiver module, deletes in subscriber's meter the list item about user.The 3rd processing module, does not receive the dhcp message from user for receiver module forcing to re-rent in the rental period of message, deletes in subscriber's meter the list item about user.
Preferably, processing module is further used for: detecting module detect user network abnormal after, user is stopped to charging.
Compared with prior art, according to technical scheme of the present invention, by detecting user network at service node when abnormal, to user, send and force to re-rent message, and judge whether to delete in its subscriber's meter about this user's list item according to the dhcp message type receiving, can guarantee that service node and user's dhcp state is synchronous.
Accompanying drawing explanation
Accompanying drawing described herein is used to provide a further understanding of the present invention, forms the application's a part, and schematic description and description of the present invention is used for explaining the present invention, does not form inappropriate limitation of the present invention.In the accompanying drawings:
Fig. 1 is the DHCP network of network topology schematic diagram according to prior art;
Fig. 2 is according to the flow chart of the processing method of the state synchronized of the embodiment of the present invention;
Fig. 3 is according to the flow chart of the preferred process scheme of the processing method of the state synchronized of the embodiment of the present invention;
Fig. 4 is according to the block diagram of the processing unit of the state synchronized of the embodiment of the present invention.
Embodiment
Main thought of the present invention is mainly, finding that DHCP user (by the user of DHCP agreement access SN) network detection is not adopted to method of deleting user's list item completely of the prior art when abnormal, but process is re-rented in the DHCP pressure that starts a rental period, reach and force SN and the synchronous object that also whether discovery user network fault is recovered in time of user DHCP Host Status.
For making the object, technical solutions and advantages of the present invention clearer, below in conjunction with drawings and the specific embodiments, the present invention is described in further detail.
According to embodiments of the invention, provide a kind of processing method of state synchronized.
Fig. 2 is according to the flow chart of the processing method of the state synchronized of the embodiment of the present invention, and as shown in Figure 2, the method comprises:
Step S202, user is by DHCP agreement access service node, and service node carries out keep-alive detection to the user of access.
Step S204, it is abnormal that service node detects user network, to user, sends and force to re-rent message (DHCP FORCE RENEW), and wherein, the rental period dwell time that message is re-rented in pressure is the rental period dwell time of success last time lease.Within this rental period, service node stops this user's charging.
Step S206, service node receives the dhcp message from user forcing to re-rent in the rental period of message, according to the type of the dhcp message receiving, judges whether to delete in its subscriber's meter the list item about this user.
Specifically, the type of the dhcp message from user that service node receives comprises: DHCP request message (DHCP REQUEST) or dhcp discover message (DHCP DISCOVERY), wherein, if the dhcp message that service node receives is DHCP request message, represent that user network fault recovers, service node sends acknowledge message according to the list item about user in subscriber's meter to this user, and restarts user's keep-alive to survey and process; If the dhcp message that service node receives is dhcp discover message, now representing that subscriber's main station discharges applies for dhcp address again, service node stops forcing to re-rent process, service node is deleted in its subscriber's meter the list item about user, as long as service node perception user malfunction recovers or again reaches the standard grade, service node restarts charging.
In addition, if service node does not receive the dhcp message (comprising DHCP REQUEST and DHCP DISCOVERY) from user forcing to re-rent in the rental period of message, so this pressure re-rent the time overtime after, service node is deleted in its subscriber's meter the list item about this user.Now subscriber's main station is because the rental period has expired to re-rent and obtains address, and subscriber's main station will restart dhcp process.
By above-mentioned processing, make between because of access node and aggregation node link down cause the serviced node of user network fault force to roll off the production line, after in the process of again reaching the standard grade because of this network disaster recovery again, guaranteed the consistency of service node and user's dhcp state.
Below in conjunction with Fig. 3, describe the details of above-mentioned processing in detail.As shown in Figure 3, comprising:
Step S302, user (hereinafter referred to as DHCP user) obtains address and reaches the standard grade, and DHCP user is by DHCP agreement access service node (SN).
Step S304, SN (or SN equipment) carries out keep-alive detection to DHCP user, for example: whether actively by ARP or other modes, survey DHCP user.
Step S306, user is unreachable, detection is abnormal because network failure causes for SN perception DHCP user, and DHCP user without any response, thinks that DHCP user is inactive to the active probe of SN.
Step S308, SN does not delete user's list item, start this DHCP user to force to re-rent process, to user, send DHCP FORCE RENEW at certain intervals, force users is re-rented, this pressure is re-rented by the time that kept user in a upper rental period after once re-renting successfully, until receive user's DHCP message.Within this time, SN stops this user's charging.
Step S310, judges whether SN receives the dhcp message from DHCP user.
Step S312-S314; forcing in the time of re-renting; SN has received the DHCPREQUEST message that user re-rents; represent that user network (for example: DHCP user's network failure is because link down between AN and AG causes recovers; and recover at user DHCP retention time in rental period internal fault), now, SN stops forcing to re-rent process and restart charging; and perform step S304, again this user is carried out to keep-alive detection.
Step S316, forcing in the time of re-renting, when SN receives user's DHCP DISCOVERY message, now showing that subscriber's main station discharges applies for that dhcp address (for example: DHCP user's network failure is because link down between AN and AG causes again, and recover at user DHCP retention time in rental period internal fault, during fault recovery, subscriber's main station has discharged address DHCP applied address again), SN stops forcing to re-rent process, deletes the original user's list item of this user and lays equal stress on and newly start the DHCP flow process of reaching the standard grade.As long as SN perception user malfunction recovers or again reaches the standard grade, SN restarts charging.
Step S318, if SN is forcing not receive in the time of re-renting any DHCP message of this DHCP user, comprise that DHCP finds and DHCP request, (for example: DHCP user's network failure is because link down between AN and AG causes, and this link down is not recovered always), so this pressure re-rent the time overtime after, SN deletes subscriber's meter completely, now subscriber's main station is because the rental period is obtained address to re-renting.Subscriber's main station will restart dhcp process.
Fig. 3 shows the preferred process flow process according to the embodiment of the present invention.
Device embodiment
According to embodiments of the invention, a kind of processing unit of state synchronized is also provided, preferably, this device is arranged at service node.
Fig. 4 is according to the block diagram of the processing unit of the state synchronized of the embodiment of the present invention, and as shown in Figure 4, this device comprises: detecting module 10, and sending module 20, receiver module 30, processing module 40, wherein:
Detecting module 10, for the user of access service node is carried out to keep-alive detection, this user is by DHCP agreement access service node.
Sending module 20, it is connected with detecting module 10, detects user network abnormal for detecting module 10, to user, sends and forces to re-rent message, and wherein, the rental period dwell time that message is re-rented in pressure is the rental period dwell time of success last time lease.
Receiver module 30, for receiving the dhcp message from user forcing to re-rent in the rental period of message.
Processing module 40, it is connected with receiver module 30, for the type of the dhcp message that receives according to receiver module 30, judges whether to delete the subscriber's meter of service node about user's list item.Detecting module detect user network abnormal after, user is stopped to charging.
Wherein, processing module 40 further comprises: the first processing module or the second processing module or the 3rd processing module.The dhcp message that the first processing module receives for receiver module 30 is DHCP request message, sends acknowledge message, and re-execute detecting module according to the list item about user in subscriber's meter to user.The second processing module, the dhcp message receiving for receiver module 30 is dhcp discover message, deletes in subscriber's meter the list item about user.The 3rd processing module, does not receive the dhcp message from user for receiver module 30 forcing to re-rent in the rental period of message, deletes in subscriber's meter the list item about this user.
In actual application, according to the concrete handling process of the processing unit of the embodiment of the present invention can referring to figs. 2 and 3 shown in, do not repeat herein.
To sum up, the technique scheme according to the present invention, by service node, detect user network when abnormal, to user, send and force to re-rent message, and judge whether to delete in its subscriber's meter about this user's list item according to the dhcp message type receiving, can guarantee that service node and user's dhcp state is synchronous.
The foregoing is only embodiments of the invention, be not limited to the present invention, for a person skilled in the art, the present invention can have various modifications and variations.Within the spirit and principles in the present invention all, any modification of doing, be equal to replacement, improvement etc., within all should being included in claim scope of the present invention.
Claims (10)
1. a processing method for state synchronized, is characterized in that, comprising:
User is by dynamic host allocation protocol DHCP access service node, and described service node carries out keep-alive detection to the described user of access;
It is abnormal that described service node detects described user network, to described user, sends and force to re-rent message, and wherein, the rental period dwell time that message is re-rented in described pressure is the rental period dwell time of success last time lease;
Described service node receives the dhcp message from described user in rental period of message is re-rented in described pressure, according to the type of the described dhcp message receiving, judges whether to delete in its subscriber's meter the list item about described user.
2. method according to claim 1, it is characterized in that, when the type of described dhcp message is dhcp discover message, described service node judges whether to delete in its subscriber's meter about described user's list item according to the type of the described dhcp message receiving, and further comprises:
Described service node sends acknowledge message according to the list item about described user in described subscriber's meter to described user, and restarts described user's keep-alive to survey and process.
3. method according to claim 1, it is characterized in that, the type of described dhcp message is dhcp discover message, and described service node judges whether to delete in its subscriber's meter about described user's list item according to the type of the described dhcp message receiving, and further comprises:
Described service node is deleted in its subscriber's meter the list item about described user.
4. method according to claim 1, is characterized in that, described method further comprises:
If described service node does not receive the dhcp message from described user in rental period of message is re-rented in described pressure, delete in its subscriber's meter the list item about described user.
5. according to the method described in any one in claim 1 to 4, it is characterized in that, further comprise:
Described service node detect described user network abnormal after, described user is stopped to charging.
6. a processing unit for state synchronized, user, by DHCP agreement access service node, is characterized in that, described device comprises:
Detecting module, for carrying out keep-alive detection to accessing the described user of described service node;
Sending module, detects described user network for described detecting module abnormal, to described user, sends and forces to re-rent message, and wherein, the rental period dwell time that message is re-rented in described pressure is the rental period dwell time of success last time lease;
Receiver module, receives the dhcp message from described user for re-renting in described pressure in rental period of message;
Processing module, judges whether to delete the subscriber's meter of described service node about described user's list item for the type of the described dhcp message that receives according to described receiver module.
7. device according to claim 6, is characterized in that, described processing module further comprises:
The first processing module, while being DHCP request message for the dhcp message receiving when described receiver module, sending acknowledge message according to the list item about described user in described subscriber's meter to described user, and re-executes described detecting module.
8. device according to claim 6, is characterized in that, described processing module further comprises:
The second processing module, while being dhcp discover message for the dhcp message receiving when described receiver module, deletes in described subscriber's meter the list item about described user.
9. device according to claim 6, is characterized in that, described processing module further comprises:
The 3rd processing module does not receive the dhcp message from described user for described receiver module in rental period of message is re-rented in described pressure, deletes in described subscriber's meter the list item about described user.
10. according to the device described in any one in claim 6 to 9, it is characterized in that, described processing module is further used for: described detecting module detect described user network abnormal after, described user is stopped to charging.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201010003440.4A CN101778107B (en) | 2010-01-15 | 2010-01-15 | State synchronization processing method and device |
| PCT/CN2010/078821 WO2011085612A1 (en) | 2010-01-15 | 2010-11-17 | Method and apparatus for processing state synchronization |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201010003440.4A CN101778107B (en) | 2010-01-15 | 2010-01-15 | State synchronization processing method and device |
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| CN101778107A CN101778107A (en) | 2010-07-14 |
| CN101778107B true CN101778107B (en) | 2014-03-12 |
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| CN101778107B (en) * | 2010-01-15 | 2014-03-12 | 中兴通讯股份有限公司 | State synchronization processing method and device |
| CN103024226B (en) * | 2012-12-10 | 2015-04-15 | 深圳市共进电子股份有限公司 | Data communication method and communication terminal |
| CN103095722A (en) * | 2013-02-01 | 2013-05-08 | 华为技术有限公司 | Method for updating network security table and network device and dynamic host configuration protocol (DHCP) server |
| CN110557331A (en) * | 2019-07-15 | 2019-12-10 | 中移（杭州）信息技术有限公司 | User offline control method, controller, forwarding equipment and user access system |
| CN111586153B (en) * | 2020-04-30 | 2023-08-29 | 北京达佳互联信息技术有限公司 | Communication method and device for cloud platform |
| CN112649690A (en) * | 2020-12-31 | 2021-04-13 | 上海遨有信息技术有限公司 | Power transmission and transformation equipment Internet of things network access consistency detection method and device |
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| CN1501636A (en) * | 2002-11-19 | 2004-06-02 | 华为技术有限公司 | A method for detecting whether or not WEB authentication user is on line |
| CN1917432A (en) * | 2005-08-16 | 2007-02-21 | 上海贝尔阿尔卡特股份有限公司 | Media gateway controller / media gateway, and method for synchronizing connection status after disconnection |
| CN101335652A (en) * | 2007-06-29 | 2008-12-31 | 华为技术有限公司 | Status detection method, apparatus and system of dynamic host configuring protocol |
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| CN1210911C (en) * | 2002-04-08 | 2005-07-13 | 华为技术有限公司 | Method for real time detecting ethernet connected computer on-line state through insertion equipment |
| US7529815B2 (en) * | 2003-11-24 | 2009-05-05 | Cisco Technology, Inc. | Methods and apparatus supporting configuration in a network |
| CN101778107B (en) * | 2010-01-15 | 2014-03-12 | 中兴通讯股份有限公司 | State synchronization processing method and device |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1501636A (en) * | 2002-11-19 | 2004-06-02 | 华为技术有限公司 | A method for detecting whether or not WEB authentication user is on line |
| CN1917432A (en) * | 2005-08-16 | 2007-02-21 | 上海贝尔阿尔卡特股份有限公司 | Media gateway controller / media gateway, and method for synchronizing connection status after disconnection |
| CN101335652A (en) * | 2007-06-29 | 2008-12-31 | 华为技术有限公司 | Status detection method, apparatus and system of dynamic host configuring protocol |
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| WO2011085612A1 (en) | 2011-07-21 |
| CN101778107A (en) | 2010-07-14 |
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