CN108881343B - Method and device for acquiring state of client terminal equipment and automatic configuration server - Google Patents
Method and device for acquiring state of client terminal equipment and automatic configuration server Download PDFInfo
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- CN108881343B CN108881343B CN201710330970.1A CN201710330970A CN108881343B CN 108881343 B CN108881343 B CN 108881343B CN 201710330970 A CN201710330970 A CN 201710330970A CN 108881343 B CN108881343 B CN 108881343B
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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
- H04L67/50—Network services
- H04L67/54—Presence management, e.g. monitoring or registration for receipt of user log-on information, or the connection status of the users
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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
- H04L67/14—Session management
- H04L67/142—Managing session states for stateless protocols; Signalling session states; State transitions; Keeping-state mechanisms
Abstract
The invention relates to a method and a device for acquiring the state of client terminal equipment and an automatic configuration server, belonging to the technical field of network management. The method comprises the following steps: sending a connection request to client terminal equipment, wherein the connection request carries a correct user identifier and an incorrect password; and judging the state of the client terminal equipment according to whether the response message returned by the client terminal equipment is received or not and the state code carried in the received response message. The device includes: a request sending module, configured to send a connection request to a client terminal device, where the connection request carries a correct user identifier and an incorrect password; and the judging module is used for judging the state of the client terminal equipment according to whether the response message returned by the client terminal equipment is received and the state code carried in the received response message. The invention realizes accurate and efficient judgment on whether the client terminal equipment is on line or not by sending the correct user identification and the wrong password to the client terminal equipment.
Description
Technical Field
The present invention relates to the field of network management technologies, and in particular, to a method and an apparatus for acquiring a status of a client terminal device, and an automatic configuration server.
Background
With the rapid development of the device network management technology, the performance of the network management server is rapidly improved, the number of devices to be managed by the network management server is increased in a geometric progression, and how to rapidly and efficiently manage the devices becomes a big problem in the network management system.
The traditional SNMP (Simple Network Management Protocol) has become more and more complex and difficult to implement due to insecurity of data transmission and randomness of data definition, and the Tr069 Protocol formulated by BBF (Broadband Forum) better solves the above problems, but still does not well solve the problem of how to obtain the state of the device in real time in batch.
In the current Tr069 protocol, there are generally the following three methods to obtain the status of the device.
1) And acquiring a certain fixed parameter on the equipment according to an interactive flow of a Tr069 protocol, wherein the parameter value can be acquired to be in an online state, and the parameter value cannot be acquired or the protocol interaction timeout is in an offline state. The method has many defects, for example, the types of equipment are various, fixed parameters may not exist (i.e., are incompatible) on certain types of equipment, so that the equipment is clearly online, but the equipment is mistakenly offline because the values of the fixed parameters cannot be obtained. To obtain a certain fixed parameter value on a device, configuration must be made based on the device type, such as a type a device, which takes an X value, and a type b device which takes a Y value, resulting in a complex network management system. Parameters are acquired based on the Tr069 Protocol, and the efficiency is low after multiple HTTP (Hypertext Transfer Protocol) interactions.
2) And at the initial stage of acquiring the state, the network manager sends a connection request to the equipment, and the acquisition of the equipment state is realized by adopting an HTTP state code returned by a get method of an HTTP protocol. Since the user name and password of the ACS are attached to the connection REQUEST, the status code 202 can be immediately acquired after the connection REQUEST is sent, but then, the CPE (Customer premise equipment) sends an Inform message packet with a 6CONNECT REQUEST event to the ACS, which is useless for acquiring the device status.
3) And when the network manager sends a connection REQUEST to the equipment, an incorrect user name and password are sent, so that the state can be obtained through the response of the CPE, and the authentication of the CPE fails, thereby preventing the CPE from sending an Inform message packet with a 6CONNECT REQUEST event to the ACS. Compared with the second method, the method not only ensures the efficiency, but also reduces the performance loss of the system. However, the method still has a serious disadvantage: in an actual application scenario, some office points will distribute their IP addresses to other terminal devices that are started up after the terminal devices are turned off, and a large error will occur in the device status statistics of these office points. For example, when the state of the device a is to be acquired, if the device a is offline and its IP address is used by the device B, the result of acquiring the state may be mistaken for the fact that the device a is online, but actually the state of the device B is acquired. In the third method, the acquired equipment state is not accurate in some scenes.
At present, no better method can accurately acquire the state of the terminal equipment and occupy the system performance resource to the minimum extent so as to adapt to the efficient acquisition of the state of a large amount of terminal equipment.
Disclosure of Invention
Therefore, it is necessary to provide a method and an apparatus for acquiring the state of a client terminal device, and an automatic configuration server, for solving the problem that the conventional technology cannot accurately and efficiently acquire the state of a batch of terminal devices.
A method of obtaining a status of a client terminal device, the method comprising:
sending a connection request to client terminal equipment, wherein the connection request carries a correct user identifier and an incorrect password;
and judging the state of the client terminal equipment according to whether the response message returned by the client terminal equipment is received or not and the state code carried in the received response message.
An apparatus for obtaining a status of a client terminal device, the apparatus comprising:
a request sending module, configured to send a connection request to a client terminal device, where the connection request carries a correct user identifier and an incorrect password;
and the judging module is used for judging the state of the client terminal equipment according to whether the response message returned by the client terminal equipment is received and the state code carried in the received response message.
An automatic configuration server comprises the device for acquiring the state of the client terminal equipment.
A storage medium having stored thereon a computer program, the storage medium being arranged to store program code for performing the above-described method of obtaining a status of a client terminal device.
The invention ensures that the user identification in the authentication data according to the client terminal equipment is correct by sending the correct user identification and the wrong password to the client terminal equipment, but the information message packet with the 6CONNECT REQUEST event can not be sent to the local automatic configuration server due to the wrong password, and the client terminal equipment corresponding to the user identification is judged whether to be on-line or not according to the status code returned by the client terminal equipment according to the authentication of the correct user identification without multiple HTTP (Hyper Text Transfer Protocol) interactions, thereby reducing the performance loss of the system and realizing the accurate and efficient judgment of whether the client terminal equipment is on-line or not.
Drawings
FIG. 1 is a flow diagram of a method of obtaining a status of a client terminal device according to one embodiment of the invention;
fig. 2 is a flowchart of a method of acquiring a status of a client terminal device according to another embodiment of the present invention;
FIG. 3 is a timing diagram of a usage scenario for obtaining a status of a client terminal device, according to one embodiment of the invention;
FIG. 4 is a flowchart illustrating a method for acquiring a status of a client terminal device according to a first conventional method;
FIG. 5 is a flowchart illustrating a method for obtaining a status of a client device according to a second conventional method;
FIG. 6 is a flowchart illustrating a method for obtaining a status of a client device according to a third conventional method;
fig. 7 is a block diagram of an apparatus for acquiring a status of a client terminal device according to an embodiment of the present invention;
FIG. 8 is a block diagram of an auto-configuration server according to one embodiment of the invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
Fig. 1 is a flowchart of a method for acquiring a status of a client terminal device according to an embodiment of the present invention, and the method for acquiring a status of a client terminal device according to an embodiment of the present invention is described below with reference to fig. 1, and includes the following steps S101 and S102.
S101, sending a connection request to client terminal equipment, wherein the connection request carries a correct user identifier and an incorrect password.
According to an example of this embodiment, in this step, the local automatic Configuration Server ACS (Auto-Configuration Server) communicates with the customer premises equipment cpe (customer Premise equipment) via the Tr069 protocol over the HTTP protocol. The Tr069 protocol may be conveniently implemented by using a Transport Layer Security technology in the Web, such as SSL (Secure Sockets Layer)/TLS (Transport Layer Security) protocol. The lower layers of the Tr069 Protocol stack make full use of communication protocols widely used in the internet, such as TCP (Transmission Control Protocol), HTTP, SOAP (Simple Object Access Protocol), and the like. In the connection process, the client terminal device serves as a client of the HTTP, the SOAP request of the client terminal device is sent to the ACS through the HTTP post, the ACS serves as a server of the HTTP, and the SOAP request of the ACS is sent to the user device through the HTTP response.
In this step, according to an example of this embodiment, the user identifier is a unique identifier that the auto configuration server negotiates with (or sets up with) the client terminal device to characterize the identity of the client terminal device, where the identifier is, for example, a user name of the client terminal device, a MAC (Media Access Control or Medium Access Control) physical address of the client terminal device, an imei (international Mobile Equipment identity) international Mobile Equipment identity code, and so on. Optionally, the user identifier and password are set as fixed or random alphanumeric strings. Optionally, the user identification includes, but is not limited to, fixed or random data, fixed or random letters, and a combination of fixed or random alphanumeric letters. The form of the password is preferably a combination of fixed or random alphabets.
In this embodiment, the connection request carries a correct user identifier and an incorrect password, so that a defect that a loss is caused to system performance due to protocol interaction between the CPE and the ACS when the correct user identifier and the password are carried to obtain the device state is avoided, an identity of the client terminal device cannot be verified due to the fact that the wrong user identifier and the wrong password are carried is also avoided, and the state of the CPE is judged incorrectly.
S102, judging the state of the client terminal equipment according to whether the response message returned by the client terminal equipment is received or not and the state code carried in the received response message.
In this embodiment, the status code is a hypertext transfer protocol HTTP status code.
According to an example of the embodiment, the status code carried in the response message returned by the client terminal device is result data synchronously returned after the client terminal device authenticates according to the correct user identifier and the wrong password.
According to an example of this embodiment, the client terminal device performs the user name and password authentication as follows:
receiving a correct name and user name identification and an incorrect password sent by an automatic configuration server;
comparing the received user name identification and password with the correct user name identification and the correct password stored in the home terminal;
if the comparison result of the user name identifications is the same but the passwords are different, the user name identification authentication is judged to be correct but the passwords are wrong (for example, 417) and if the comparison result of the user name identifications is different, the user name identification authentication is judged to be wrong (for example, 401).
And sending the state code corresponding to the comparison result to an automatic configuration server.
In this embodiment, since the connection request sent to the customer premises equipment CPE carries the correct user identifier and the wrong password, the customer premises equipment does not trigger sending of the Inform message to the home terminal, so that the ACS and the CPE do not generate protocol interaction, but only replies a response message to Inform the home terminal of the ACS response message that the user identifier is correct but the password is wrong, which can ensure the accuracy of determining the state of the customer premises equipment CPE, reduce the system loss, and improve the efficiency of determining the state of the customer premises equipment.
Fig. 2 is a flowchart of a method for acquiring a status of a client terminal device according to another embodiment of the present invention, and fig. 2 shows a method for acquiring a status of a client terminal device according to another embodiment of the present invention, where the step S102 specifically includes steps S201, S202, S203, and S204 on the basis of the step S101.
S201, judging whether a response message returned by the client terminal equipment is received, if so, jumping to the step S202, otherwise, jumping to the step S204.
S202, judging whether the state code carried in the received response message is the first state code with correct user identification authentication, if so, jumping to the step S203, otherwise, jumping to the step S204.
S203, judging that the client terminal equipment is in an online state.
And S204, judging that the client terminal equipment is in an off-line state.
According to one example of this embodiment, the first status code for which the user identification authenticates is the correct HTTP status code 417.
In step S201, it is determined whether or not the response message returned by the client terminal device is received, and whether or not the response message is judged to be delayed, and when the system is delayed, it is determined that the response message returned by the client terminal device is not received, and it is determined that the client terminal device is offline.
In step S202, when it is determined that the status code carried in the received response message is not the first status code with correct user identifier authentication, it is determined whether the status code carried in the response message is the second status code indicating that the user identifier is incorrect, and if so, it is determined that the corresponding client terminal device is offline.
According to an example of this embodiment, the second state code that prompts the user to identify an error is the HTTP state code 401.
Fig. 3 is a timing diagram of a usage scenario for acquiring a status of a client device according to an embodiment of the present invention, and fig. 3 shows an interaction flow between an ACS and a CPE, where the ACS uses a correct user identifier and an incorrect password, the CPE matches the user identifier, and returns different status codes according to a matching result, and the interaction process is as follows:
1. the ACS initiates a connection request to the CPE, wherein the connection request carries a correct user identifier and an incorrect password;
2. after receiving the request, the CPE extracts the user identification in the request and matches the user identification, if the user identification is successfully matched with the user identification, the CPE returns an HTTP response with the state code of 417, otherwise, the CPE returns an HTTP response with the state code of 401.
In this embodiment, since the connection request carries the correct user identifier and the wrong password, the CPE cannot be triggered to send the Inform message to the ACS, and meanwhile, the CPE synchronously sends a status code of 417 (the user identifier is correct and the password is wrong), and the ACS receives the status code and then recognizes that the CPE is online; the CPE synchronously sends a state code 401 (user identification error and password error), and after the ACS receives the state code, the target CPE is considered to be offline; when the CPE returns a timeout synchronously, the ACS considers the device offline.
In a first method flow of a conventional method for acquiring a device state (hereinafter referred to as a first conventional method), fig. 4 is a flowchart of a method for acquiring a device state of a client terminal in the first conventional method, as shown in fig. 4, after an ACS sends a connection request to a CPE, the CPE returns a 200 state code, next, the CPE initiates a session, and after an Inform and an Inform response interaction, the CPE further sends an empty packet, the ACS sends a getParameterValues command, the CPE returns getparametervaluesponse, and the flow ends, and the specific interaction process is as follows:
1. the ACS initiates a connection request to the CPE, and the connection request carries correct user identification and password;
2. the CPE synchronously returns an HTTP status code 200;
3. the CPE reports an Inform message with a 6CONNECTION REQUEST event to the ACS, and marks that the CPE establishes a session with the ACS;
4. the ACS returns an inform response message to the CPE;
5. the CPE sends a null message to the ACS;
6. the ACS sends a GetParameterValues message to the CPE to acquire the value of a certain parameter of the CPE;
7. the CPE returns a GetParameterValueResponse to the ACS, and the message contains the parameter value.
In a second conventional method flow for acquiring the device status (hereinafter referred to as a second conventional method), fig. 5 is a flow chart of a method for acquiring the device status of the client terminal in the second conventional method, as shown in fig. 5, the method is to send a connection request by using a correct user identifier and password, after the ACS sends the connection request to the CPE, the CPE returns a 200 status code, and then the CPE initiates a session, interacts with an Inform and an Inform response, and ends the flow of mutually sending null packets; the specific interaction process is as follows:
1. the ACS initiates a connection request to the CPE, and the connection request carries correct user identification and password;
2. the CPE synchronously returns an HTTP status code 200;
3. the CPE reports an Inform message with a 6CONNECTION REQUEST event to the ACS, and marks that the CPE establishes a session with the ACS;
4. the ACS returns an inform response message to the CPE;
5. the CPE sends a null message to the ACS;
6. the ACS returns a null message to the CPE.
In a third conventional method flow for acquiring a device state (hereinafter referred to as a third conventional method), fig. 6 is a flow chart of a method for acquiring a device state of a client terminal in the third conventional method, as shown in fig. 6, which is to send a connection request using a wrong user identifier and password, after the ACS sends the connection request to the CPE, the CPE returns a 401 state code, and the ACS determines that it is online according to the 401 state code, where an interaction process is as follows:
1. the ACS initiates a connection request to the CPE, and the connection request carries wrong user identification and password;
2. the CPE synchronously returns an HTTP status code 401.
This method has a great problem: if the target CPE goes offline, its IP is used by other CPEs, causing the ACS to misjudge that the target CPE is online, and in fact, the status of another CPE is obtained.
Based on this analysis, the results of comparing this example with the conventional techniques are shown in table 1 below:
TABLE 1
As can be seen from the above table, the conventional technology needs to acquire device parameters or introduces Tr069 protocol interaction, and the method is complex and inefficient. The third method has the disadvantage of inaccurate state acquisition, and the method of the embodiment overcomes the defects of the three methods, so that the accuracy requirement can be met while the advantages of high efficiency, simplicity and the like of the state acquisition are kept, and the method is particularly suitable for the scene of state refreshing of large-batch equipment (such as terminal network management).
Fig. 7 is a block diagram of an apparatus for acquiring a status of a client terminal device according to an embodiment of the present invention, and the apparatus 10 for acquiring a status of a client terminal device according to an embodiment of the present invention is described below with reference to fig. 7, and includes:
a request sending module 11, configured to send a connection request to a client terminal device, where the connection request carries a correct user identifier and an incorrect password;
the judging module 12 is configured to judge the state of the client terminal device according to whether a response message returned by the client terminal device is received and a state code carried in the received response message.
Further, the judging module is further configured to:
and when the state code carried in the received response message is a first state code representing that the user identification authentication is correct, judging that the client terminal equipment is in an online state, and when the waiting time is overtime or the state code carried in the received response message is a second state code representing that the user identification authentication is wrong, judging that the client terminal equipment is in an offline state.
Optionally, the determining module includes:
and the first judgment unit is used for judging whether a response message returned by the client terminal equipment is received or not, and if not, judging that the client terminal equipment is in an off-line state.
And the second judging unit is used for judging that the state code carried in the received response message is the first state code with correct user identification authentication when receiving the response message returned by the client terminal equipment, and judging that the client terminal equipment is in an online state if the state code is the first state code.
And the third judging unit is used for judging whether the state code carried in the received response message is the second state code with the wrong user identifier authentication or not when the state code carried in the received response message is not the first state code with the correct user identifier authentication, and if so, judging that the client terminal equipment is in an offline state.
Optionally, the status code is a hypertext transfer protocol HTTP status code.
Further, the status code carried in the response message is result data returned by the client terminal device after authentication according to the correct user identifier and the wrong password.
Fig. 8 is a block diagram of an automatic configuration server according to an embodiment of the invention, and as shown in fig. 8, the automatic configuration server 20 includes the above-mentioned apparatus 10 for client terminal device status.
According to the present embodiment, there is provided a storage medium configured to store program code for performing the steps of:
sending a connection request to client terminal equipment, wherein the connection request carries a correct user identifier and an incorrect password;
and judging the state of the client terminal equipment according to whether the response message returned by the client terminal equipment is received or not and the state code carried in the received response message. Optionally, the status code is a hypertext transfer protocol HTTP status code.
Wherein, the step of judging the state of the client terminal device according to whether the response message returned by the client terminal device is received and the state code carried in the received response message comprises:
and when the state code carried in the received response message is a first state code representing that the user identification authentication is correct, judging that the client terminal equipment is in an online state, and when the waiting time is overtime or the state code carried in the received response message is a second state code representing that the user identification authentication is wrong, judging that the client terminal equipment is in an offline state.
Further, the status code carried in the response message returned by the client terminal device is the result data synchronously returned by the client terminal device after the client terminal device authenticates according to the correct user identifier and the wrong password.
In this embodiment, the correct user identifier and the wrong password are sent to the client terminal device, so that the user identifier in the authentication data according to the client terminal device is correct, but because the password is wrong, an Inform message packet with a "6 CONNECT REQUEST" event cannot be sent to the local automatic configuration server, multiple HTTP (Hyper Text Transfer Protocol) interactions are not required, the system performance loss is reduced, and meanwhile, whether the client terminal device corresponding to the user identifier is online can be judged according to a status code returned by the client terminal device according to the correct authentication of the user identifier, so that whether the client terminal device is online can be accurately and efficiently judged.
It will be understood by those skilled in the art that all or part of the processes in the methods of the embodiments described above may be implemented by hardware related to instructions of a computer program, which may be stored in a computer readable storage medium, for example, in the storage medium of a computer system, and executed by at least one processor in the computer system, so as to implement the processes of the embodiments including the methods described above. The storage medium may be a magnetic disk, an optical disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), or the like.
The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.
The above-mentioned embodiments only express several embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention. Therefore, the protection scope of the present patent shall be subject to the appended claims.
Claims (10)
1. A method for obtaining the state of a client terminal device is applied to an automatic configuration server, and is characterized in that the method comprises the following steps:
sending a connection request to client terminal equipment, wherein the connection request carries a correct user identifier and an incorrect password, and the user identifier is a unique identification code which is negotiated by the automatic configuration server and the client terminal equipment to represent the identity of the client terminal equipment;
and judging the state of the client terminal equipment according to whether the response message returned by the client terminal equipment is received or not and the state code carried in the received response message.
2. The method according to claim 1, wherein the step of determining the status of the client terminal device according to whether the response message returned by the client terminal device is received and the status code carried in the received response message comprises:
and when the state code carried in the received response message is a first state code representing that the user identification authentication is correct, judging that the client terminal equipment is in an online state, and when the waiting time is overtime or the state code carried in the received response message is a second state code representing that the user identification authentication is wrong, judging that the client terminal equipment is in an offline state.
3. The method of claim 1, wherein the status code is a hypertext transfer protocol (HTTP) status code.
4. The method according to any one of claims 1 to 3, wherein the status code carried in the response message returned by the client terminal device is result data synchronously returned after the client terminal device authenticates according to the correct user identifier and the wrong password.
5. An apparatus for obtaining a status of a client terminal device, the apparatus comprising:
a request sending module, configured to send, by an auto-configuration server, a connection request to a client terminal device, where the connection request carries a correct user identifier and an incorrect password, and the user identifier is a unique identifier that is negotiated between the auto-configuration server and the client terminal device to characterize an identity of the client terminal device;
and the judging module is used for judging the state of the client terminal equipment according to whether the response message returned by the client terminal equipment is received and the state code carried in the received response message.
6. The apparatus of claim 5, wherein the determining module is further configured to:
and when the state code carried in the received response message is a first state code representing that the user identification authentication is correct, judging that the client terminal equipment is in an online state, and when the waiting time is overtime or the state code carried in the received response message is a second state code representing that the user identification authentication is wrong, judging that the client terminal equipment is in an offline state.
7. The apparatus of claim 5, wherein the status code is a hypertext transfer protocol (HTTP) status code.
8. The apparatus according to any one of claims 5 to 7, wherein the status code carried in the response message returned by the client terminal device is result data synchronously returned after the client terminal device authenticates according to the correct user identifier and the wrong password.
9. An auto-configuration server, characterized in that it comprises means for obtaining the status of a client terminal device according to any one of the preceding claims 5 to 8.
10. A computer-readable storage medium, on which a computer program is stored, which program, when being executed by a processor, is adapted to carry out the method of acquiring a status of a client terminal device according to any one of claims 1 to 4.
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| CN101827003A (en) * | 2010-04-19 | 2010-09-08 | 杭州华三通信技术有限公司 | Management method and equipment of CPE (Customer Premise Equipment) |
| CN102684899A (en) * | 2011-03-15 | 2012-09-19 | 中兴通讯股份有限公司 | Method, ACS (auto-configuration server) and system for obtaining equipment status based on TR069 protocol |
| CN104954187A (en) * | 2015-06-30 | 2015-09-30 | 杭州华三通信技术有限公司 | Method and device for determining state of CPE (customer premise equipment) |
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| CN100403690C (en) * | 2005-04-30 | 2008-07-16 | 华为技术有限公司 | Method and its system for managing user stationed equipment configuration |
| US20140120551A1 (en) * | 2012-10-29 | 2014-05-01 | Academia Sinica | Methods of diagnosing, predicting and treating cardiovascular disease |
| CN106330513A (en) * | 2015-06-30 | 2017-01-11 | 中兴通讯股份有限公司 | Processing method and apparatus for tr069 protocol information |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN101827003A (en) * | 2010-04-19 | 2010-09-08 | 杭州华三通信技术有限公司 | Management method and equipment of CPE (Customer Premise Equipment) |
| CN102684899A (en) * | 2011-03-15 | 2012-09-19 | 中兴通讯股份有限公司 | Method, ACS (auto-configuration server) and system for obtaining equipment status based on TR069 protocol |
| CN104954187A (en) * | 2015-06-30 | 2015-09-30 | 杭州华三通信技术有限公司 | Method and device for determining state of CPE (customer premise equipment) |
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