WO2017031650A1 - Online configuration method, system, and apparatus for cable modem - Google Patents

Abstract

The present invention relates to the technical field of communications, and in particular, to an online configuration method, system, and apparatus for a cable modem. The method comprises: a CM sends a DHCP request message to a DHCP server, and receives a DHCP response message fed back by the DHCP server, the DHCP response message carrying at least one file identifier for uniquely identifying a configuration file requested by the CM; and the CM compares the file identifier carried in the DHCP response message with file identifiers corresponding to locally saved configuration files, and when it is determined that an identical file identifier exists, completes configuration by using a locally saved configuration file. Therefore, a TFTP request configuration procedure is omitted, network traffic and system resource consumption are greatly reduced, and service recovery time is shortened.

Description

Cable modem uplink configuration method, system and device Technical field

The present invention relates to the field of communications technologies, and in particular, to a method, system, and apparatus for configuring a cable modem.

Background technique

Cable Modem (CM) is a device used on the cable TV network to access the Internet. Among them, Cable refers to cable TV network, Modem is modem. It can be seen from the application process of the existing network that the CM is a home terminal device, and there are frequent power failures or dropped calls, and each time after power failure or offline, it is necessary to initiate a re-launch process. In the process of going online, the CM must perform the Trivial File Transfer Protocol (TFTP) request configuration process. The process includes the CM configuration file request, the CM configuration file is delivered, and the CM parses the configuration file and returns it. Registered Coax Medium Converter (CMC), and CMC to parse CM return messages and other stages. In fact, once the CM is powered on for the first time, the CM configuration file usually does not change. Therefore, each time the CM goes online, the TFTP request configuration process will bring unnecessary burden to the system.

In particular, in the case of regional power failure, voltage and line instability, there will be a scenario where large-capacity CMs go online at the same time. At this time, thousands of CMs are online or frequently registered, which will greatly increase network traffic and affect service recovery speed. System reliability. In addition, the simultaneous launch of thousands of CMs not only causes traffic impact at the service level, but also involves a large number of high-level protocol interactions, such as inter-board communication messages, that need to be performed during the internal analysis of the CMC system, which will further bring a lot of Necessary system implementation constraints and system resource consumption.

In the prior art, the CM can only know the file name of the CM configuration file through DHCP, and the CM itself cannot simply judge whether the CM configuration file changes from the file name. Therefore, each time the CM goes online, the TFTP request configuration process needs to be performed, which brings about a huge system resource consumption and network bandwidth consumption, and causes a problem that the service recovery speed is slow.

Summary of the invention

The embodiment of the invention provides a cable modem uplinking method, system and device, which are used to solve the problem of large system resource consumption and network bandwidth consumption caused by the TFTP request configuration process during the CM online process, and the service recovery speed is slow. The problem.

The specific technical solutions provided by the embodiments of the present invention are as follows:

In a first aspect, a method for configuring a cable modem to go online includes:

The cable modem CM sends a DHCP request message to the dynamic host configuration protocol DHCP server;

Receiving, by the DHCP server, a DHCP response message, where the DHCP response message carries at least one file identifier for uniquely identifying a configuration file of the CM request;

The CM compares the file identifier carried in the DHCP response packet with the file identifier corresponding to the locally saved configuration file, and determines that the same file identifier exists, and uses the locally saved configuration file to complete the configuration. ;

The locally saved configuration file is obtained by the CM from the simple file transfer protocol TFTP server and saved locally, and the file identifier corresponding to the locally saved configuration file is obtained by the CM from the DHCP server. Save it locally.

In combination with the first aspect, in a first possible implementation manner of the first aspect, the method further includes:

The CM compares the file identifier carried in the DHCP response packet with the file identifier corresponding to the locally saved configuration file, and determines that the configuration file request message is sent to the TFTP server when the same file identifier does not exist. The configuration file request message is used to request a configuration file corresponding to the file identifier carried in the DHCP response packet;

Receiving a configuration file that is sent by the TFTP server according to the configuration file request message, and completing the configuration according to the configuration file sent by the TFTP server;

The CM replaces the locally saved configuration file with the configuration file delivered by the TFTP server, and replaces the file corresponding to the locally saved configuration file by using the file identifier carried in the DHCP response packet. Logo.

With the first possible implementation of the first aspect, in a second possible implementation manner of the first aspect, after the CM completes its configuration according to the configuration file sent by the TFTP server, the method further includes:

The CM sends a configuration file sent by the TFTP server to the coaxial media converter CMC, and receives a configuration success message sent by the CMC.

In conjunction with the first aspect, in a third possible implementation manner of the first aspect, the option field in the DHCP response packet carries the file identifier of the at least one configuration file for uniquely identifying the CM request.

In a second aspect, a cable modem uplink configuration system includes:

a CM, configured to send a DHCP request message to the DHCP server, and receive a DHCP response message fed back by the DHCP server;

Comparing the file identifier carried in the DHCP response packet with the file identifier corresponding to the locally saved configuration file, and determining that the same file identifier exists, using the locally saved configuration file to complete the configuration;

a DHCP server, configured to receive the DHCP request message sent by the CM, and feed back the DHCP response message to the CM;

The DHCP response packet carries at least one file identifier for uniquely identifying a configuration file of the CM request, where the locally saved configuration file is obtained by the CM from the TFTP server and saved locally, the local The file identifier corresponding to the saved configuration file is obtained by the CM from the DHCP server and saved locally.

In conjunction with the second aspect, in a first possible implementation of the second aspect, the CM is further configured to:

Comparing the file identifier carried in the DHCP response packet with the file identifier corresponding to the locally saved configuration file, and determining that the same file identifier does not exist, sending a configuration file request message to the TFTP server, where The configuration file request message is used to request a configuration file corresponding to the file identifier carried in the DHCP response message;

Receiving a configuration file sent by the TFTP server according to the configuration file request message, and The configuration file delivered by the TFTP server is used to complete the configuration.

And replacing, by using the configuration file sent by the TFTP server, the locally saved configuration file, and replacing the file identifier corresponding to the locally saved configuration file by using the file identifier carried in the DHCP response packet.

In conjunction with the first possible implementation of the second aspect, in a second possible implementation of the second aspect, the method further includes:

a TFTP server, configured to receive the configuration file request message sent by the CM, and send a configuration file according to the configuration file request message, where the configuration file request message is used to request the DHCP response message to be carried The file identifies the corresponding configuration file.

In conjunction with the first possible implementation of the second aspect, in a third possible implementation of the second aspect, the CM is further configured to:

The configuration file sent by the TFTP server is sent to the CMC.

In conjunction with the third possible implementation of the second aspect, in a fourth possible implementation of the second aspect, the method further includes:

a CMC, configured to receive a configuration file sent by the CM;

Deleting the locally saved CM configuration information, where the locally saved CM configuration information is CM configuration information obtained after the CMC is configured based on the configuration file previously sent by the CM;

The configuration is completed according to the configuration file sent by the CM, and a configuration success message is sent to the CM, and the locally saved CM configuration information is replaced by the CM configuration information obtained after the configuration.

In a third aspect, a cable modem uplink configuration device includes:

a first sending unit, configured to send a DHCP request message to the DHCP server;

a first receiving unit, configured to receive a DHCP response message that is sent by the DHCP server, where the DHCP response message carries at least one file identifier that is used to uniquely identify a configuration file of the CM request;

a first processing unit, configured to receive the DHCP response packet received by the first receiving unit 51 The file identifier carried in the file is compared with the file identifier corresponding to the locally saved configuration file. When it is determined that the same file identifier exists, the local saved configuration file is used to complete the configuration.

The locally saved configuration file is obtained by the device from the simple file transfer protocol TFTP server and saved locally, and the file identifier corresponding to the locally saved configuration file is obtained by the device from the DHCP server. Save it locally.

In combination with the third aspect, in a first possible implementation manner of the third aspect, the method further includes:

The second processing unit is configured to compare the file identifier carried in the DHCP response packet with the file identifier corresponding to the locally saved configuration file, and determine that the same file identifier does not exist, and send the configuration to the TFTP server. a file request message, where the configuration file request message is used to request a configuration file corresponding to the file identifier carried in the DHCP response message;

Receiving a configuration file that is sent by the TFTP server according to the configuration file request message, and completing the configuration according to the configuration file sent by the TFTP server;

And replacing the locally saved configuration file with the configuration file sent by the TFTP server, and replacing the file identifier corresponding to the locally saved configuration file by using the file identifier carried in the DHCP response packet.

With the first possible implementation of the third aspect, in a second possible implementation manner of the third aspect, after the configuration is completed according to the configuration file sent by the TFTP server, the method further includes:

a second sending unit, configured to send, to the CMC, a configuration file sent by the TFTP server;

And a second receiving unit, configured to receive a configuration success message sent by the CMC.

In conjunction with the third aspect, in a third possible implementation manner of the third aspect, the option field in the DHCP response packet carries the file identifier of the at least one configuration file for uniquely identifying the CM request.

The beneficial effects of the present invention are as follows:

An embodiment of the present invention provides a method, a system, and a device for configuring a cable modem. The method is: the CM sends a DHCP request message to the DHCP server, and receives a DHCP response message fed back by the DHCP server, where the DHCP response message is sent. Carry at least one for the unique label The file identifier of the configuration file that identifies the CM request. The DHCP response message here carries the file identifier of the configuration file for uniquely identifying the CM request, and not the file name of the single configuration file, so the configuration file is effectively marked. The CM compares the file identifier carried in the DHCP response packet with the file identifier corresponding to the locally saved configuration file, and determines that the configuration file and the locally saved configuration file are required to be used when the same file identifier exists. Consistently, the configuration is completed using a locally saved configuration file. The CM does not need to go to the TFTP server to download the configuration file, so the TFTP request configuration process in the prior art is omitted, the network traffic and system resource consumption are greatly reduced, and the service recovery time is accelerated, and the effect is in multiple CMs. It is more remarkable during the online process.

DRAWINGS

1 is a flow chart showing an outline of an online configuration of a cable modem according to an embodiment of the present invention;

2 is a schematic diagram of a format of a DHCP response message according to an embodiment of the present invention;

3 is a schematic structural diagram of an online line configuration system of a cable modem according to an embodiment of the present invention;

FIG. 4 is a specific flowchart of a cable modem going online configuration according to an embodiment of the present invention.

FIG. 5 is a schematic structural diagram of an apparatus for configuring an online modem of a cable modem according to an embodiment of the present invention; FIG.

FIG. 6 is a schematic structural diagram of an online configuration device of a cable modem.

detailed description

The technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the drawings in the embodiments of the present invention. It is a partial embodiment of the invention, and not all of the embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative efforts are within the scope of the present invention.

The embodiment of the invention provides a method and a device for the cable modem to go online, which solves the problem of large system resource consumption, network bandwidth consumption and slow service recovery speed caused by the TFTP request configuration process during the CM online process. . Wherein the method and device are based on the same inventive concept Since the principles of the method and the device for solving the problem are similar, the implementation of the device and the method can be referred to each other, and the repeated description will not be repeated.

Preferred embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

The invention is mainly directed to the non-first online process of the CM, and the first online process of the CM is unchanged.

Refer to Figure 1 for the configuration of the CM-side cable modem. The specific process of the CM-side CM on-line configuration is as follows:

Step 100: The CM sends a DHCP request message to the DHCP server.

According to the existing CM online process, before the CM sends a DHCP request message to the DHCP server, the CM needs to perform the online registration process with the CMC first, and further optionally complete the CMC authentication process for the CM.

Step 110: The CM receives a DHCP response message fed back by the DHCP server.

The DHCP response packet carries at least one file identifier for identifying a configuration file of the CM request.

Specifically, the option field in the DHCP response packet carries at least one file identifier of a configuration file for uniquely identifying the CM request.

The file identifier of the configuration file that uniquely identifies the CM request may be the file modification time of the configuration file, the Cyclic Redundancy Check (CRC) generated according to the configuration file, and other information that can be used to uniquely identify the CM request. The file identifier of the configuration file.

As shown in FIG. 2, it is a schematic diagram of a format of a DHCP response message, where the option field in the DHCP response message carries the file modification time of the configuration file and the CRC of the configuration file, and two files that uniquely identify the configuration file requested by the CM. Logo.

Step 120: The CM compares the file identifier carried in the DHCP response packet with the file identifier corresponding to the locally saved configuration file, and determines that the same file identifier exists, and uses the locally saved configuration file to complete the configuration.

The locally saved configuration file is obtained by the CM from the TFTP server and saved locally. The file identifier corresponding to the locally saved configuration file is obtained by the CM from the DHCP server and saved locally.

Specifically, the DHCP response packet may carry one or more file identifiers that uniquely identify the configuration file requested by the CM. The CM compares the file identifier carried in the DHCP response packet with the file identifier corresponding to the locally saved configuration file, and determines that at least one file identifier carried in the DHCP response packet is associated with the file identifier corresponding to the locally saved configuration file. At the same time, use the locally saved configuration file to complete its configuration. For example, the file modification time T _{A of the} configuration file A in the DHCP response message is used as the file identifier of the configuration file that uniquely identifies the CM request. The file identifier corresponding to the locally saved configuration file B includes the file modification time T _{B of the} configuration file _B. And the cyclic redundancy check code of the configuration file B. Therefore, by comparing the two and determining T _A = T _B , it is further determined that the configuration file A and the configuration file B are the same configuration file, and the CM adopts the locally saved configuration. Profile B completes its configuration.

Therefore, using the method provided by the present invention, when the CM compares the file identifiers carried in the DHCP response packets with the file identifiers corresponding to the locally saved configuration files, and determines that the same file identifier exists, it indicates that the online application needs to be used. The configuration file is consistent with the locally saved configuration file. At this time, the CM does not need to go to the TFTP server to download the configuration file, but directly finds the locally saved configuration file from the local storage to complete the online configuration, so the TFTP request configuration process in the prior art is omitted, and the network is greatly reduced. Traffic and system resources are consumed, and business recovery time is accelerated, and this effect is more pronounced in the process of multiple CMs going online.

In addition, the CM compares the file identifier carried in the DHCP response packet with the file identifier corresponding to the locally saved configuration file, and determines that the same file identifier does not exist.

Specifically, the CM sends a configuration file request message to the TFTP server, where the configuration file request message is used to request a configuration file corresponding to the file identifier carried in the DHCP response message.

The CM receives the configuration file sent by the TFTP server according to the configuration file request message, and completes the configuration according to the configuration file sent by the TFTP server.

In particular, the CM uses the configuration file delivered by the TFTP server to replace the locally saved configuration file, and replaces the file identifier corresponding to the locally saved configuration file with the file identifier carried in the DHCP response packet, so that the CM can be guaranteed. The second online process and the next DHCP response report The file identifiers carried in the text are compared.

Further, after the CM completes its configuration according to the configuration file sent by the TFTP server, the CM sends a configuration file sent by the TFTP server to the CMC, and the CMC side completes the corresponding configuration process, and receives the configuration success message sent by the CMC.

FIG. 3 is a schematic structural diagram of a cable modem uplink configuration system according to an embodiment of the present invention. The cable modem uplink configuration system includes:

The CM 30 is configured to send a DHCP request message to the DHCP server 31, and receive a DHCP response message fed back by the DHCP server 31.

The file identifiers carried in the DHCP response packets are compared with the file identifiers corresponding to the locally saved configuration files. When it is determined that the same file identifier exists, the local configuration file is used to complete the configuration.

The DHCP server 31 is configured to receive the DHCP request message sent by the CM 30, and feed back the DHCP response message to the CM 30.

The DHCP response packet carries at least one file identifier for uniquely identifying the configuration file of the CM request. The locally saved configuration file is obtained by the CM 30 from the TFTP server 32 and saved locally, and the locally saved configuration file corresponds to the file identifier. The file identification is obtained by the CM 30 from the DHCP server 31 and saved locally.

Optionally, the CM 30 is also used to:

Comparing the file identifier carried in the DHCP response packet with the file identifier corresponding to the locally saved configuration file, and determining that the same file identifier does not exist, sending a configuration file request message to the TFTP server 32, wherein the configuration file request message The configuration file corresponding to the file identifier carried in the DHCP response packet is requested; and

The receiving TFTP server 32 completes the configuration according to the configuration file delivered by the configuration file request message and the configuration file sent by the TFTP server 32.

The configuration file sent by the TFTP server 32 is used to replace the locally saved configuration file, and the file identifier carried in the DHCP response packet is replaced with the file identifier corresponding to the locally saved configuration file.

Optionally, the system further includes:

The TFTP server 32 is configured to receive a configuration file request message sent by the CM 30, and send a configuration file according to the configuration file request message, where the configuration file request message is used to request a configuration file corresponding to the file identifier carried in the DHCP response message.

Optionally, the CM 30 is also used to:

The configuration file sent by the TFTP server 32 is sent to the CMC 33.

Optionally, the system further includes:

The CMC 33 is configured to receive a configuration file sent by the CM 30.

Deleting the locally saved CM configuration information, where the locally saved CM configuration information is the CM configuration information obtained by the CMC 33 based on the configuration file previously sent by the CM 30;

The configuration is completed according to the configuration file sent by the CM 30, and the configuration success message is sent to the CM30, and the locally saved CM configuration information is replaced by the CM configuration information obtained after the configuration.

Here, the CMC 33 performs the process of deleting and building the first, first deleting the locally saved CM configuration information, and completing the configuration according to the configuration file received this time.

The above situation is the operation performed by the CMC 33 after receiving the current configuration file sent back by the CM 30, and the CM configuration information saved on the CMC 33 side when the CM 30 does not return the current configuration file to the CMC 33. No change, no action is required on the CMC33 side.

The above process of configuring the cable modem is described below in a specific embodiment.

Referring to FIG. 4, the cable modem online configuration process in the embodiment of the present invention is as follows:

Step 401: The CM goes online to register the process.

Specifically, it includes: searching for a downlink channel, obtaining synchronization, searching for an uplink channel description information, and performing ranging.

Step 402: The CMC performs X.509 authentication on the CM. This step is an optional step.

Step 403: The CM obtains necessary information through DHCP, including acquiring an IP address of the CM, an address of the TFTP server, and the like.

Step 404: The CM sends a DHCP request message to the DHCP server.

Step 405: The DHCP server feeds back to the CM the DHCP for responding to the DHCP request message. Response message.

The DHCP response packet carries at least one file identifier for identifying a configuration file of the CM request.

Step 406: The CM acquires the current time through the TOD protocol server.

Step 407: The CM compares the file identifier carried in the DHCP response packet with the file identifier corresponding to the locally saved configuration file, and determines that the same file identifier exists, and uses the locally saved configuration file to complete the configuration.

Step 408: The CM sends an online success message to the CMC.

After the above-mentioned CM online process, the CM is successfully launched, and normal operation can be started. Since the CM configuration file usually does not change once the CM is powered on for the first time, the network traffic and system resource consumption are greatly reduced, and the service recovery is accelerated. time.

Referring to FIG. 5, an embodiment of the present invention provides an apparatus for configuring a cable modem. The apparatus includes:

The first sending unit 50 is configured to send a DHCP request message to the DHCP server.

The first receiving unit 51 is configured to receive a DHCP response message that is sent by the DHCP server, where the DHCP response message carries at least one file identifier that is used to uniquely identify the configuration file of the CM request.

The first processing unit 52 is configured to compare the file identifier carried in the DHCP response packet received by the first receiving unit 51 with the file identifier corresponding to the locally saved configuration file, and determine that the same file identifier exists when the local file identifier is used. The saved configuration file completes its own configuration;

The locally saved configuration file is obtained by the device from the simple file transfer protocol TFTP server and saved locally. The file identifier corresponding to the locally saved configuration file is obtained by the device from the DHCP server and saved locally.

Optionally, the device further includes:

The second processing unit 53 is configured to compare the file identifier carried in the DHCP response packet with the file identifier corresponding to the locally saved configuration file, and determine that the configuration file request message is sent to the TFTP server when the same file identifier does not exist. The configuration file request message is used to request a configuration file corresponding to the file identifier carried in the DHCP response packet;

Receiving the configuration file sent by the TFTP server according to the configuration file request message, and completing the configuration according to the configuration file sent by the TFTP server;

And the configuration file sent by the TFTP server is used to replace the locally saved configuration file, and the file identifier carried in the DHCP response packet is replaced with the file identifier corresponding to the locally saved configuration file.

Optionally, after the configuration is completed according to the configuration file sent by the TFTP server, the method further includes:

The second sending unit 54 is configured to send, to the CMC, a configuration file sent by the TFTP server;

The second receiving unit 55 is configured to receive a configuration success message sent by the CMC.

Optionally, the option field in the DHCP response packet carries at least one file identifier that is used to uniquely identify the configuration file of the CM request.

It should be noted that, in the embodiment of the present invention, the division of the module is schematic, and only one logical function is divided. In actual implementation, there may be another division manner. In addition, each functional module in each embodiment of the present application may be used. It can be integrated into one processing module, or each module can exist physically separately, or two or more modules can be integrated into one module. The above integrated modules can be implemented in the form of hardware or in the form of software functional modules.

The integrated modules, if implemented in the form of software functional modules and sold or used as separate products, may be stored in a computer readable storage medium. Based on such understanding, the technical solution of the present application, in essence or the contribution to the prior art, or all or part of the technical solution may be embodied in the form of a software product stored in a storage medium. A number of instructions are included to cause a computer device (which may be a personal computer, server, or network device, etc.) or a processor to perform all or part of the steps of the methods described in various embodiments of the present application. The foregoing storage medium includes: a U disk, a mobile hard disk, a read-only memory (ROM), a random access memory (RAM), a magnetic disk, or an optical disk, and the like. .

The embodiment of the present invention further provides an online configuration device for a cable modem. As shown in FIG. 6, FIG. 6 is a schematic structural diagram of an online configuration device for a cable modem according to an embodiment of the present invention. The device includes a transceiver 601, a processor 602, and a memory 603. The transceiver 601, the processor 602, and the memory 603 are connected to each other. The specific connecting medium between the above components is not limited in the embodiment of the present invention. In the embodiment of the present invention, the memory 603, the processor 602, and the transceiver 601 are connected by a bus 604 in FIG. 6. The bus is indicated by a thick line in FIG. 6, and the connection manner between other components is only schematically illustrated. , not limited to. The bus can be divided into an address bus, a data bus, a control bus, and the like. For ease of representation, only one thick line is shown in Figure 6, but it does not mean that there is only one bus or one type of bus.

In the embodiment of the present invention, the transceiver 601 is configured to send a DHCP request message to the DHCP server, and receive a DHCP response message fed back by the DHCP server, where the DHCP response message carries at least one configuration file for uniquely identifying the CM request. File identification.

The processor 602 is configured to compare the file identifiers carried in the DHCP response packets with the file identifiers corresponding to the locally saved configuration files, and determine that the same file identifiers exist, and use the locally saved configuration files to complete the configuration. The locally saved configuration file is obtained by the device from the simple file transfer protocol TFTP server and saved locally. The file identifier corresponding to the locally saved configuration file is obtained by the device from the DHCP server and saved locally.

In the embodiment of the present invention, the memory 603 is used to store the program code executed by the processor 602, and may be a volatile memory, such as a random access memory (English: random-access memory, abbreviation: RAM); The memory 603 may also be a non-volatile memory (English: non-volatile memory), such as read-only memory (English: read-only memory, abbreviation: ROM), flash memory (English: flash memory), hard disk (English: hard Disk drive, abbreviated as: HDD) or solid state drive (English: solid-state drive, SSD), or memory 603 can be used to carry or store desired program code in the form of an instruction or data structure and can be accessed by a computer. Any other medium, but not limited to this. The memory 603 may be a combination of the above memories.

The processor 602 in the embodiment of the present invention may be a central processing unit (English: central processing unit, CPU for short).

In summary, the embodiment of the present invention provides a method for configuring a cable modem to go online. The system and the device are: the CM sends a DHCP request message to the DHCP server, and receives a DHCP response message fed back by the DHCP server, where the DHCP response message carries at least one file for uniquely identifying the configuration file of the CM request. Logo. The DHCP response message here carries the file identifier of the configuration file for uniquely identifying the CM request, and not the file name of the single configuration file, so the configuration file is effectively marked. The CM compares the file identifier carried in the DHCP response packet with the file identifier corresponding to the locally saved configuration file, and determines that the configuration file and the locally saved configuration file are required to be used when the same file identifier exists. Consistently, the configuration is completed using a locally saved configuration file. The CM does not need to go to the TFTP server to download the configuration file, so the TFTP request configuration process in the prior art is omitted, the network traffic and system resource consumption are greatly reduced, and the service recovery time is accelerated, and the effect is in multiple CMs. It is more remarkable during the online process.

Those skilled in the art will appreciate that embodiments of the present invention can be provided as a method, system, or computer program product. Accordingly, the present invention may take the form of an entirely hardware embodiment, an entirely software embodiment, or a combination of software and hardware. Moreover, the invention can take the form of a computer program product embodied on one or more computer-usable storage media (including but not limited to disk storage, CD-ROM, optical storage, etc.) including computer usable program code.

The present invention has been described with reference to flowchart illustrations and/or block diagrams of methods, apparatus (system), and computer program products according to embodiments of the invention. It will be understood that each flow and/or block of the flowchart illustrations and/or FIG. These computer program instructions can be provided to a processor of a general purpose computer, special purpose computer, embedded processor, or other programmable data processing device to produce a machine for the execution of instructions for execution by a processor of a computer or other programmable data processing device. Means for implementing the functions specified in one or more of the flow or in a block or blocks of the flow chart.

The computer program instructions can also be stored in a computer readable memory that can direct a computer or other programmable data processing device to operate in a particular manner, such that the instructions stored in the computer readable memory produce an article of manufacture comprising the instruction device. The device is implemented in a flow chart or Multiple processes and/or block diagrams The functions specified in one or more boxes.

These computer program instructions can also be loaded onto a computer or other programmable data processing device such that a series of operational steps are performed on a computer or other programmable device to produce computer-implemented processing for execution on a computer or other programmable device. The instructions provide steps for implementing the functions specified in one or more of the flow or in a block or blocks of a flow diagram.

While the preferred embodiment of the invention has been described, it will be understood that Therefore, the appended claims are intended to be interpreted as including the preferred embodiments and the modifications and

It is apparent that those skilled in the art can make various modifications and variations to the embodiments of the invention without departing from the spirit and scope of the embodiments of the invention. Thus, it is intended that the present invention cover the modifications and modifications of the embodiments of the invention.

Claims (13)

A cable modem uplink configuration method, comprising: The cable modem CM sends a DHCP request message to the dynamic host configuration protocol DHCP server; Receiving, by the DHCP server, a DHCP response message, where the DHCP response message carries at least one file identifier for uniquely identifying a configuration file of the CM request; The CM compares the file identifier carried in the DHCP response packet with the file identifier corresponding to the locally saved configuration file, and determines that the same file identifier exists, and uses the locally saved configuration file to complete the configuration. ; The locally saved configuration file is obtained by the CM from the simple file transfer protocol TFTP server and saved locally, and the file identifier corresponding to the locally saved configuration file is obtained by the CM from the DHCP server. Save it locally. The method of claim 1 further comprising: The CM compares the file identifier carried in the DHCP response packet with the file identifier corresponding to the locally saved configuration file, and determines that the configuration file request message is sent to the TFTP server when the same file identifier does not exist. The configuration file request message is used to request a configuration file corresponding to the file identifier carried in the DHCP response packet; Receiving a configuration file that is sent by the TFTP server according to the configuration file request message, and completing the configuration according to the configuration file sent by the TFTP server; The CM replaces the locally saved configuration file with the configuration file delivered by the TFTP server, and replaces the file corresponding to the locally saved configuration file by using the file identifier carried in the DHCP response packet. Logo. The method according to claim 2, wherein after the CM completes its configuration according to the configuration file sent by the TFTP server, the method further includes: The CM sends a configuration file sent by the TFTP server to the coaxial media converter CMC, and receives a configuration success message sent by the CMC. The method according to claim 1, wherein the option field in the DHCP response message carries the file identifier of the at least one configuration file for uniquely identifying the CM request. An online configuration system for a cable modem, comprising: The CM is configured to send a DHCP request message to the DHCP server, and receive a DHCP response message fed back by the DHCP server; and use the file identifier carried in the DHCP response message and the file identifier corresponding to the locally saved configuration file. When comparing and determining that the same file identifier exists, the local saved configuration file is used to complete the configuration; a DHCP server, configured to receive the DHCP request message sent by the CM, and feed back the DHCP response message to the CM, where the DHCP response message carries at least one identifier for uniquely identifying a CM request. a file identifier of the configuration file, where the locally saved configuration file is obtained from the TFTP server and saved locally, and the file identifier corresponding to the locally saved configuration file is obtained by the CM from the DHCP server. Save it locally. The system of claim 5 wherein said CM is further configured to: Comparing the file identifier carried in the DHCP response packet with the file identifier corresponding to the locally saved configuration file, and determining that the same file identifier does not exist, sending a configuration file request message to the TFTP server, where The configuration file request message is used to request a configuration file corresponding to the file identifier carried in the DHCP response message; Receiving the configuration file sent by the TFTP server according to the configuration file request message, and completing the configuration by using the configuration file delivered by the TFTP server; And replacing, by using the configuration file sent by the TFTP server, the locally saved configuration file, and replacing the file identifier corresponding to the locally saved configuration file by using the file identifier carried in the DHCP response packet. The system of claim 6 further comprising: a TFTP server, configured to receive the configuration file request message sent by the CM, and send a configuration file according to the configuration file request message, where the configuration file request message is used to request the DHCP response message to be carried The file identifies the corresponding configuration file. The system of claim 6 wherein said CM is further configured to: The configuration file sent by the TFTP server is sent to the CMC. The system of claim 8 further comprising: a CMC, configured to receive a configuration file sent by the CM; Deleting the locally saved CM configuration information, where the locally saved CM configuration information is CM configuration information obtained after the CMC is configured based on the configuration file previously sent by the CM; The configuration is completed according to the configuration file sent by the CM, and a configuration success message is sent to the CM, and the locally saved CM configuration information is replaced by the CM configuration information obtained after the configuration. A cable modem uplink configuration device, comprising: a first sending unit, configured to send a DHCP request message to the DHCP server; a first receiving unit, configured to receive a DHCP response message that is sent by the DHCP server, where the DHCP response message carries at least one file identifier that is used to uniquely identify a configuration file of the CM request; a first processing unit, configured to compare a file identifier carried in the DHCP response packet received by the first receiving unit 51 with a file identifier corresponding to a locally saved configuration file, to determine that the same file identifier exists , using the locally saved configuration file to complete its configuration; The locally saved configuration file is obtained by the device from the simple file transfer protocol TFTP server and saved locally, and the file identifier corresponding to the locally saved configuration file is obtained by the device from the DHCP server. Save it locally. The device of claim 10, further comprising: The second processing unit is configured to compare the file identifier carried in the DHCP response packet with the file identifier corresponding to the locally saved configuration file, and determine that the same file identifier does not exist, and send the configuration to the TFTP server. a file request message, where the configuration file request message is used to request a configuration file corresponding to the file identifier carried in the DHCP response message; Receiving a configuration file sent by the TFTP server according to the configuration file request message, and Performing its own configuration according to the configuration file sent by the TFTP server; And replacing the locally saved configuration file with the configuration file sent by the TFTP server, and replacing the file identifier corresponding to the locally saved configuration file by using the file identifier carried in the DHCP response packet. The device according to claim 11, wherein after the configuration is completed according to the configuration file sent by the TFTP server, the method further includes: a second sending unit, configured to send, to the CMC, a configuration file sent by the TFTP server; And a second receiving unit, configured to receive a configuration success message sent by the CMC. The device according to claim 10, wherein the option field in the DHCP response message carries the file identifier of the at least one configuration file for uniquely identifying the CM request.

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