CN102064951A - Method for implementing master and standby DHCP servers - Google Patents
Method for implementing master and standby DHCP servers Download PDFInfo
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- CN102064951A CN102064951A CN2009101096674A CN200910109667A CN102064951A CN 102064951 A CN102064951 A CN 102064951A CN 2009101096674 A CN2009101096674 A CN 2009101096674A CN 200910109667 A CN200910109667 A CN 200910109667A CN 102064951 A CN102064951 A CN 102064951A
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Abstract
The invention provides a method for implementing master and standby dynamic host configuration protocol (DHCP) servers. An access service gateway regularly detects the feasibility of the master and standby DHCP servers; and if one DHCP server returns a response, the DHCP server is determined to be feasible at present, and a DHCP message of a user can be sent to the DHCP server. Therefore, when the master DHCP server goes down, a system automatically switches to the standby DHCP server so as to keep the normal operation of user service.
Description
Technical field
The invention belongs to communication technical field, be specifically related to a kind of method that realizes that Dynamic Host Configuration Protocol server is active and standby.
Background technology
(World Interoperability for Microwave Access Wimax) is a new wireless access wide band technology based on IEEE 802.16 standards (BroadbandWireless Access Technology) in the worldwide interoperability for microwave access.It is a kind of new air-interface standard that proposes at microwave frequency band.The Wimax network model comprises following several network entity: mobile subscriber terminal, access service network (Access Service Network, ASN), connection service network (Connectivity ServiceNetwork, CSN).User terminal comprise applications client and mobile client (Mobile Station, MS); Access service network comprises ASN IAD (ASN-GW is called for short AGW), and the base station (BaseStation, BS); Connection service network comprises DHCP (Dynamic Host ConfigurationProtocol: DHCP) server; AAA (Authentication Authorizationand Accounting: server authentication and authorization charging), and HA (Home Agent: several network elements home agent).
In the Wimax system, obtain the basic skills of IP address and other relevant information when adopting DHCP to be the user terminal access.
See also shown in Figure 1ly, Fig. 1 is the network structure of Wimax system.Wherein, user terminal 11 is the Wimax terminal, is linked in the Wimax system.Base station 12 is a network element of access service network, carries out wireless connections with user terminal 11.
Access Service Network Gateway 13 is another network element of access service network, when user terminal 11 inserts, sets up the tunnel with base station 12, for user terminal provides access service.Access service comprises the authentication of carrying out user terminal with authentication authorized charging server 14 alternately, authorizes and charging.
Authentication authorized charging server 14 is network elements of connection service network, the authentication service of user terminal is provided, after the authentication of user terminal was passed through, authentication authorized charging server user terminal was for this reason authorized, and authorization message is sent to Access Service Network Gateway 13.Simultaneously, authentication authorized charging server 14 carries out the mutual of user terminal charge information with Access Service Network Gateway 13, and charge information can comprise back paying and prepayment information.
Dynamic Host Configuration Protocol server 15 is another network elements of connection service network, when user terminal inserts, is user terminal distributing IP address.Specifically can be, when user terminal inserted, Access Service Network Gateway 13 was mutual as DHCP Relay and Dynamic Host Configuration Protocol server, for user terminal obtains the IP address.When adopting mobile IP mode to insert, HA is under the situation of user terminal distributing IP address, and HA and Dynamic Host Configuration Protocol server are mutual, for user terminal obtains the IP address.Under the situation of the IP address of user terminal by the AAA distribution, AAA and Dynamic Host Configuration Protocol server are mutual, for user terminal obtains the IP address.In addition, Dynamic Host Configuration Protocol server can also provide some other information for user terminal, as DNS (Domain Name Server, name server), and default gateway information.
In the practical application, Dynamic Host Configuration Protocol server can be configured to two or many, like this, the machine if the Dynamic Host Configuration Protocol server of main usefulness is delayed, system need automatically switch to standby Dynamic Host Configuration Protocol server, to keep the normal operation of customer service.
In present technical scheme, do not propose to solve as yet to realize the active and standby technical scheme of Dynamic Host Configuration Protocol server, so that run reliably.
Summary of the invention
The problem to be solved in the present invention is to overcome prior art a kind of method that realizes that Dynamic Host Configuration Protocol server is active and standby is provided, and makes that system automatically switches to standby Dynamic Host Configuration Protocol server when the Dynamic Host Configuration Protocol server of main usefulness is delayed machine, to keep the normal operation of customer service.
For achieving the above object, technical scheme provided by the invention is: a kind of method that realizes that Dynamic Host Configuration Protocol server is active and standby comprises the steps:
A) under the initial situation, it is unavailable that Access Service Network Gateway is provided with active and standby Dynamic Host Configuration Protocol server state;
B) described Access Service Network Gateway regularly sends available probe message to described active and standby Dynamic Host Configuration Protocol server;
C) whether described Access Service Network Gateway returns message according to each Dynamic Host Configuration Protocol server, determines each Dynamic Host Configuration Protocol server state;
D) described Access Service Network Gateway is according to the state of current active and standby Dynamic Host Configuration Protocol server, and the dhcp message of decision active user terminal sends to an available Dynamic Host Configuration Protocol server.
In the embodiment of the invention, the standby server in the described active and standby Dynamic Host Configuration Protocol server is one or more.
In the embodiment of the invention, described steps A) state of the active and standby Dynamic Host Configuration Protocol server of Access Service Network Gateway setting described in is according to NSP (Network Service Provider: the Internet Service Provider) be provided with respectively, i.e. the corresponding one group of active and standby Dynamic Host Configuration Protocol server of each NSP.
Further, the described available probe message that Access Service Network Gateway described step B) regularly sends is organized active and standby Dynamic Host Configuration Protocol server at pairing that of each NSP and is sent.
Further, described step C) in, the dhcp message of described active user's terminal is to send according to the NSP under it.
In the embodiment of the invention, described step B) the described available probe message that Access Service Network Gateway sends described in is the DHCP request message.
Further, the message that the described Dynamic Host Configuration Protocol server described step C) is responded is that DHCP confirms or the non-acknowledge message of DHCP.
In the embodiment of the invention, described step B) if in a Dynamic Host Configuration Protocol server receive the response, then described Access Service Network Gateway determines that this Dynamic Host Configuration Protocol server can use.
In the embodiment of the invention, described step B) if in a Dynamic Host Configuration Protocol server do not receive the response within a certain period of time, then described Access Service Network Gateway determines that this Dynamic Host Configuration Protocol server is unavailable.
In the embodiment of the invention, described step B) if in a Dynamic Host Configuration Protocol server do not receive the response within a certain period of time, then described Access Service Network Gateway is retransmitted the available probe message of certain number of times, replys message or reaches the maximum number of retransmissions that described Access Service Network Gateway is provided with up to this Dynamic Host Configuration Protocol server.
Further, after the available probe message that described Access Service Network Gateway has been retransmitted certain number of times was given a Dynamic Host Configuration Protocol server, this Dynamic Host Configuration Protocol server was not still receiveed the response, and described Access Service Network Gateway determines that this Dynamic Host Configuration Protocol server is unavailable.
In the embodiment of the invention, described step D) Access Service Network Gateway described in preferentially sends to described user terminal dhcp message the last time of the Dynamic Host Configuration Protocol server of user terminal selecting for this reason.That is, the Dynamic Host Configuration Protocol server that has only user terminal for this reason the to use last time machine of delaying, just the dhcp message with this user terminal sends to standby Dynamic Host Configuration Protocol server.
More than be to be the situation of user terminal to Dynamic Host Configuration Protocol server request IP address at Access Service Network Gateway, if HA or aaa server are user terminal distributing IP address, above flow process is suitable equally.
As from the foregoing, technical scheme provided by the invention has solved by Dynamic Host Configuration Protocol server and has obtained under the situation of IP address, and when the master delayed machine with Dynamic Host Configuration Protocol server, system automatically switched to the method for standby Dynamic Host Configuration Protocol server.Guaranteed as far as possible that thus user terminal obtains an available IP address when inserting, user terminal also can in time carry out the renewed treaty operation of effective address in line process simultaneously, guarantees the reliable operation of system.
In addition, the present invention also is applicable to and realizes the active and standby situation of DHCP under user attaching heterogeneous networks service provider's the situation.Thus, when the user adopted different network services, system can provide DHCP active and standby function equally, and the system of being convenient to runs neatly.
Description of drawings
Fig. 1 is the network structure of Wimax system;
Fig. 2 is a kind of flow chart of realizing that Dynamic Host Configuration Protocol server is active and standby of the present invention;
Fig. 3 is that the present invention realizes the implementing procedure figure that Dynamic Host Configuration Protocol server is active and standby in the Wimax system;
Fig. 4 is the present invention realizes the active and standby differentiation of Dynamic Host Configuration Protocol server NSP in the Wimax system implementing procedure figure.
Embodiment
Also the present invention is described in further detail in conjunction with the accompanying drawings below by specific embodiment.
Main thought of the present invention is: Access Service Network Gateway regularly carries out the available detection of active and standby Dynamic Host Configuration Protocol server, if a Dynamic Host Configuration Protocol server is replied response, thinks that then this Dynamic Host Configuration Protocol server is available at present, can send user's dhcp message to this Dynamic Host Configuration Protocol server.
See also shown in Figure 2ly, Fig. 2 is a kind of flow chart of realizing that Dynamic Host Configuration Protocol server is active and standby of the present invention; This flow chart comprises the steps:
Step 21: under the initial situation, it is unavailable that Access Service Network Gateway is provided with active and standby Dynamic Host Configuration Protocol server state;
Step 22: Access Service Network Gateway sends available probe message to active and standby Dynamic Host Configuration Protocol server;
Step 23: whether Access Service Network Gateway returns message according to each Dynamic Host Configuration Protocol server, determines each Dynamic Host Configuration Protocol server state;
Step 24: if current have the dhcp message of user terminal to need to send, Access Service Network Gateway is according to the state of current active and standby Dynamic Host Configuration Protocol server, and the dhcp message of decision active user terminal sends to an available Dynamic Host Configuration Protocol server.
Above step 22 to step 23 is constantly to repeat.
Wherein, the standby server in the active and standby Dynamic Host Configuration Protocol server is one or more.Need to prove: the address of active/standby server is variable, and the server of current use is main usefulness, if switch to standby server, then former standby server becomes main usefulness, and former master becomes standby with server.
Wherein the state of the active and standby Dynamic Host Configuration Protocol server of Access Service Network Gateway setting is provided with respectively according to NSP in the step 21, i.e. the corresponding one group of active and standby Dynamic Host Configuration Protocol server of each NSP.
Further, the available probe message of step 22 Access Service Network Gateway transmission is regularly organized active and standby Dynamic Host Configuration Protocol server transmission at pairing that of each NSP.
Further, in the step 23, the dhcp message of active user's terminal is to send according to the NSP under it.
Wherein the available probe message that Access Service Network Gateway sends in the step 22 is the DHCP request message.
Further, the message that the Dynamic Host Configuration Protocol server described step C) returns is that DHCP confirms or the non-acknowledge message of DHCP.
If wherein a Dynamic Host Configuration Protocol server is receiveed the response in the step 22, then Access Service Network Gateway determines that this Dynamic Host Configuration Protocol server can use.
If wherein a Dynamic Host Configuration Protocol server is not receiveed the response within a certain period of time in the step 22, then Access Service Network Gateway determines that this Dynamic Host Configuration Protocol server is unavailable.
If wherein a Dynamic Host Configuration Protocol server is not receiveed the response within a certain period of time in the step 22, then Access Service Network Gateway is retransmitted the available probe message of certain number of times, replys message or reaches the maximum number of retransmissions that Access Service Network Gateway is provided with up to this Dynamic Host Configuration Protocol server.
Further, after the available probe message that Access Service Network Gateway has been retransmitted certain number of times was given a Dynamic Host Configuration Protocol server, this Dynamic Host Configuration Protocol server was not still receiveed the response, and Access Service Network Gateway determines that this Dynamic Host Configuration Protocol server is unavailable.
Wherein Access Service Network Gateway preferentially sends to described user terminal dhcp message the last time of the Dynamic Host Configuration Protocol server of user terminal selecting for this reason in the step 24.That is, the Dynamic Host Configuration Protocol server that has only user terminal for this reason the to use last time machine of delaying, just the dhcp message with this user terminal sends to standby Dynamic Host Configuration Protocol server.
Fig. 3 is that the present invention realizes the implementing procedure figure that Dynamic Host Configuration Protocol server is active and standby in the Wimax system; Present embodiment is active and standby each other with two Dynamic Host Configuration Protocol server (Dynamic Host Configuration Protocol server 1 and Dynamic Host Configuration Protocol server 2) to be example, comprising:
Step 301: under the initial situation, the state that Access Service Network Gateway is provided with Dynamic Host Configuration Protocol server 1 and Dynamic Host Configuration Protocol server 2 is unavailable;
Step 302: Access Service Network Gateway sends DHCP asks 1 message to Dynamic Host Configuration Protocol server 1;
DHCP request message wherein is the information structuring of Access Service Network Gateway according to self.Can be an IP address of configuration in corresponding D HCP server (being Dynamic Host Configuration Protocol server 1 and Dynamic Host Configuration Protocol server 2 in the present embodiment) as " the requested IP address " field in the DHCP request; " client identifier " field in the DHCP request can be filled out the identification information into Access Service Network Gateway.
Step 303: Access Service Network Gateway sends DHCP asks 2 message to Dynamic Host Configuration Protocol server 2;
Step 304:DHCP server 1 response DHCP confirms that 1 message is to Access Service Network Gateway;
Step 305:DHCP server 2 response DHCP confirm that 2 message are to Access Service Network Gateway;
Herein, if the DHCP acknowledge message of step 304 and step 305 changes the non-acknowledge message of DHCP into to the not influence of this flow process;
Step 306: Access Service Network Gateway determines that Dynamic Host Configuration Protocol server 1 and Dynamic Host Configuration Protocol server 2 are upstate;
Suppose that Access Service Network Gateway determines that Dynamic Host Configuration Protocol server 1 is the main Dynamic Host Configuration Protocol server of using this moment;
Step 307: user terminal requests is linked into the Wimax system;
This moment, Access Service Network Gateway was user terminal distributing IP address as DHCP Relay by Dynamic Host Configuration Protocol server;
Step 308: Access Service Network Gateway is to the main IP address that obtains user terminal with Dynamic Host Configuration Protocol server (being Dynamic Host Configuration Protocol server 1);
Step 309: regularly arrive, Access Service Network Gateway sends DHCP asks 3 message to Dynamic Host Configuration Protocol server 1;
Timing herein is the duration that Access Service Network Gateway is provided with, and carries out regular DHCP thus and serves available detection.When reality is used, can be set to a fixed value, as 5 seconds, the time in 5 seconds of promptly every mistake, Access Service Network Gateway will start the available detection of new round Dynamic Host Configuration Protocol server.
Step 310: Access Service Network Gateway sends DHCP asks 4 message to Dynamic Host Configuration Protocol server 2;
Step 311:DHCP server 2 response DHCP confirm that 4 message are to Access Service Network Gateway;
Step 312: Access Service Network Gateway determines that Dynamic Host Configuration Protocol server 1 is unavailable, determines that Dynamic Host Configuration Protocol server 2 can use; And carry out corresponding state setting;
Above step 309 can be carried out repeatedly, and promptly Access Service Network Gateway is repeatedly retransmitted available probe message and given Dynamic Host Configuration Protocol server 1, but Dynamic Host Configuration Protocol server 1 does not all echo always and answers message to give Access Service Network Gateway;
Step 313: when user terminal need carry out the address when re-renting, Access Service Network Gateway sends message at present available Dynamic Host Configuration Protocol server 2, carries out the processing of re-renting of user terminal IP address.
Fig. 4 is the present invention realizes the active and standby differentiation of Dynamic Host Configuration Protocol server NSP in the Wimax system implementing procedure figure; Present embodiment is an example with two NSP (NSP1 and NSP2), each NSP comprises that (NSP1 comprises Dynamic Host Configuration Protocol server 1 and Dynamic Host Configuration Protocol server 2 to two Dynamic Host Configuration Protocol server, NSP2 comprises Dynamic Host Configuration Protocol server 3 and Dynamic Host Configuration Protocol server 4), Dynamic Host Configuration Protocol server in the NSP is active and standby each other, user terminal 1 ownership NSP1, user terminal 2 ownership NSP2.Implementing procedure figure comprises the steps:
Step 401: under the initial situation, Access Service Network Gateway is provided with Dynamic Host Configuration Protocol server 1,2, and 3,4 state is unavailable;
Step 402: Access Service Network Gateway sends DHCP asks 1 message to Dynamic Host Configuration Protocol server 1;
Step 403: Access Service Network Gateway sends DHCP asks 2 message to Dynamic Host Configuration Protocol server 2;
Step 404: Access Service Network Gateway sends DHCP asks 3 message to Dynamic Host Configuration Protocol server 3;
Step 405: Access Service Network Gateway sends DHCP asks 4 message to Dynamic Host Configuration Protocol server 4;
Step 406:DHCP server 1 response DHCP confirms that 1 message is to Access Service Network Gateway;
Step 407:DHCP server 4 response DHCP confirm that 4 message are to Access Service Network Gateway;
Herein, step 406 is if 407 DHCP acknowledge message changes the non-acknowledge message of DHCP into to the not influence of this flow process;
Step 408: Access Service Network Gateway determines that Dynamic Host Configuration Protocol server 1,4 is a upstate; Determine that Dynamic Host Configuration Protocol server 2,3 is a down state; And carry out corresponding state setting;
Above step 403 and step 404 can be carried out repeatedly, and promptly Access Service Network Gateway is repeatedly retransmitted available probe message and given Dynamic Host Configuration Protocol server 2 and Dynamic Host Configuration Protocol server 3, but Dynamic Host Configuration Protocol server 2 does not all echo with Dynamic Host Configuration Protocol server 3 always and answers message to give Access Service Network Gateway;
Step 409: user terminal 1 request is linked into the Wimax system;
This moment, Access Service Network Gateway was user terminal distributing IP address as DHCP Relay by Dynamic Host Configuration Protocol server;
Step 410: Access Service Network Gateway is to the main IP address that obtains user terminal 1 with Dynamic Host Configuration Protocol server (being Dynamic Host Configuration Protocol server 1);
Step 411: user terminal 2 requests are linked into the Wimax system;
This moment, Access Service Network Gateway was user terminal 2 distributing IP addresses as DHCP Relay by Dynamic Host Configuration Protocol server;
Step 412: Access Service Network Gateway is to the main IP address that obtains user terminal 2 with Dynamic Host Configuration Protocol server (being Dynamic Host Configuration Protocol server 4);
Here, the user terminal 1 of ownership NSP1 adopts the Dynamic Host Configuration Protocol server that belongs to NSP1 to carry out the Address requests operation; The user terminal 2 of ownership NSP2 adopts the Dynamic Host Configuration Protocol server that belongs to NSP2 to carry out the Address requests operation.Each solicit operation all is sent to current available (i.e. main usefulness) Dynamic Host Configuration Protocol server.
The embodiment of Fig. 3 and Fig. 4 correspondence is to be the situation of user terminal to Dynamic Host Configuration Protocol server request IP address at Access Service Network Gateway, if HA or aaa server are user terminal distributing IP address, above flow process is suitable equally.
Above embodiment Access Service Network Gateway adopts ready-made dhcp message, carries out the detection that Dynamic Host Configuration Protocol server can be used, and actually implements very convenient.
In sum, the invention provides a kind of method that realizes that Dynamic Host Configuration Protocol server is active and standby, make that system automatically switches to standby Dynamic Host Configuration Protocol server under the situation of the main machine of delaying with Dynamic Host Configuration Protocol server.Guaranteed the reliable operation of system thus.The method can adopt ready-made dhcp message to realize the available detection of Dynamic Host Configuration Protocol server, actually implements very convenient.
In addition, the present invention also provides the active and standby scheme of Dynamic Host Configuration Protocol server that the Internet Service Provider carries out the user terminal access of distinguishing.Thus, the different Internet Service Provider of user attaching, when adopting different network services, system can provide DHCP active and standby function equally, and the system of being convenient to runs neatly.
Above content be in conjunction with concrete preferred implementation to further describing that the present invention did, can not assert that concrete enforcement of the present invention is confined to these explanations.For the general technical staff of the technical field of the invention, without departing from the inventive concept of the premise, can also make some simple deduction or replace, all should be considered as belonging to protection scope of the present invention.
Claims (12)
1. a method that realizes that Dynamic Host Configuration Protocol server is active and standby is characterized in that, comprises step:
A) under the initial situation, it is unavailable that Access Service Network Gateway is provided with active and standby Dynamic Host Configuration Protocol server state;
B) described Access Service Network Gateway regularly sends available probe message to described active and standby Dynamic Host Configuration Protocol server;
C) whether described Access Service Network Gateway returns message according to each Dynamic Host Configuration Protocol server, determines each Dynamic Host Configuration Protocol server state;
D) described Access Service Network Gateway is according to the state of current active and standby Dynamic Host Configuration Protocol server, and the dhcp message of decision active user terminal sends to an available Dynamic Host Configuration Protocol server.
2. method according to claim 1 is characterized in that, the standby server in the described active and standby Dynamic Host Configuration Protocol server is one or more.
3. method according to claim 1 is characterized in that, described steps A) described in the state of active and standby Dynamic Host Configuration Protocol server of Access Service Network Gateway setting be provided with respectively according to the Internet Service Provider.
4. method according to claim 3 is characterized in that, described step B) described in the described available probe message that regularly sends of Access Service Network Gateway organize active and standby Dynamic Host Configuration Protocol server at pairing that of each NSP and send.
5. method according to claim 4 is characterized in that, described step C) in, the dhcp message of described active user's terminal is to send according to the NSP under it.
6. method according to claim 1 is characterized in that, described step B) described in the described available probe message that sends of Access Service Network Gateway be the DHCP request message.
7. method according to claim 6 is characterized in that, described step C) in the message responded of described Dynamic Host Configuration Protocol server be that DHCP confirms or the non-acknowledge message of DHCP.
8. method according to claim 1 is characterized in that, described step B) if in a Dynamic Host Configuration Protocol server receive the response, then described Access Service Network Gateway determines that this Dynamic Host Configuration Protocol server can use.
9. system according to claim 8 is characterized in that, described step B) if in a Dynamic Host Configuration Protocol server do not receive the response within a certain period of time, then described Access Service Network Gateway determines that this Dynamic Host Configuration Protocol server is unavailable.
10. system according to claim 8, it is characterized in that, described step B) if in a Dynamic Host Configuration Protocol server do not receive the response within a certain period of time, then described Access Service Network Gateway is retransmitted the available probe message of certain number of times, replys message or reaches the maximum number of retransmissions that described Access Service Network Gateway is provided with up to this Dynamic Host Configuration Protocol server.
11. system according to claim 10, it is characterized in that, after the available probe message that described Access Service Network Gateway has been retransmitted certain number of times was given a Dynamic Host Configuration Protocol server, this Dynamic Host Configuration Protocol server was not still receiveed the response, and described Access Service Network Gateway determines that this Dynamic Host Configuration Protocol server is unavailable.
12. system according to claim 1 is characterized in that, described step D) described in Access Service Network Gateway preferentially described user terminal dhcp message is sent to the last time of the Dynamic Host Configuration Protocol server of user terminal selecting for this reason.
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| CN2009101096674A CN102064951A (en) | 2009-11-18 | 2009-11-18 | Method for implementing master and standby DHCP servers |
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| CN2009101096674A CN102064951A (en) | 2009-11-18 | 2009-11-18 | Method for implementing master and standby DHCP servers |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102404146A (en) * | 2011-11-17 | 2012-04-04 | 福建星网锐捷网络有限公司 | Master-slave switching method, network device and DHCP server |
| CN103685501A (en) * | 2013-12-06 | 2014-03-26 | 北京奇虎科技有限公司 | Data processing method, device and system |
| CN103825777A (en) * | 2014-02-14 | 2014-05-28 | 杭州华三通信技术有限公司 | DMZ server switching method and device |
| CN103945016A (en) * | 2014-04-11 | 2014-07-23 | 江苏物联网研究发展中心 | DHCP server active-standby redundancy method and system |
| CN104639364A (en) * | 2014-12-02 | 2015-05-20 | 重庆尊贤科技有限公司 | DHCP (dynamic host configuration protocol) backup method independent of support and coordination of master DHCP server |
| CN104995892A (en) * | 2013-12-30 | 2015-10-21 | 华为技术有限公司 | GRE tunnel determination method, gateway device and access station |
| CN105430016A (en) * | 2015-12-30 | 2016-03-23 | 迈普通信技术股份有限公司 | Network access authentication method and system |
| CN113467953A (en) * | 2021-07-16 | 2021-10-01 | 腾讯科技（深圳）有限公司 | Service state switching method and device, server and storage medium |
-
2009
- 2009-11-18 CN CN2009101096674A patent/CN102064951A/en active Pending
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102404146A (en) * | 2011-11-17 | 2012-04-04 | 福建星网锐捷网络有限公司 | Master-slave switching method, network device and DHCP server |
| CN102404146B (en) * | 2011-11-17 | 2014-10-29 | 福建星网锐捷网络有限公司 | Master-slave switching method, network device and DHCP server |
| CN103685501A (en) * | 2013-12-06 | 2014-03-26 | 北京奇虎科技有限公司 | Data processing method, device and system |
| CN104995892A (en) * | 2013-12-30 | 2015-10-21 | 华为技术有限公司 | GRE tunnel determination method, gateway device and access station |
| CN103825777A (en) * | 2014-02-14 | 2014-05-28 | 杭州华三通信技术有限公司 | DMZ server switching method and device |
| CN103945016A (en) * | 2014-04-11 | 2014-07-23 | 江苏物联网研究发展中心 | DHCP server active-standby redundancy method and system |
| CN104639364A (en) * | 2014-12-02 | 2015-05-20 | 重庆尊贤科技有限公司 | DHCP (dynamic host configuration protocol) backup method independent of support and coordination of master DHCP server |
| CN104639364B (en) * | 2014-12-02 | 2018-05-25 | 重庆尊贤科技有限公司 | The DHCP backup methods that main Dynamic Host Configuration Protocol server is supported and coordinated are not depended on |
| CN105430016A (en) * | 2015-12-30 | 2016-03-23 | 迈普通信技术股份有限公司 | Network access authentication method and system |
| CN113467953A (en) * | 2021-07-16 | 2021-10-01 | 腾讯科技（深圳）有限公司 | Service state switching method and device, server and storage medium |
| CN113467953B (en) * | 2021-07-16 | 2023-08-04 | 腾讯科技（深圳）有限公司 | Service state switching method and device, server and storage medium |
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Application publication date: 20110518 |