CN111600744B - Multi-board control method, system and storage medium based on SNMP - Google Patents
Multi-board control method, system and storage medium based on SNMP Download PDFInfo
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- CN111600744B CN111600744B CN202010269323.6A CN202010269323A CN111600744B CN 111600744 B CN111600744 B CN 111600744B CN 202010269323 A CN202010269323 A CN 202010269323A CN 111600744 B CN111600744 B CN 111600744B
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L41/00—Arrangements for maintenance, administration or management of data switching networks, e.g. of packet switching networks
- H04L41/02—Standardisation; Integration
- H04L41/0213—Standardised network management protocols, e.g. simple network management protocol [SNMP]
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L12/00—Data switching networks
- H04L12/28—Data switching networks characterised by path configuration, e.g. LAN [Local Area Networks] or WAN [Wide Area Networks]
- H04L12/2854—Wide area networks, e.g. public data networks
- H04L12/2856—Access arrangements, e.g. Internet access
- H04L12/2869—Operational details of access network equipments
- H04L12/2878—Access multiplexer, e.g. DSLAM
- H04L12/2887—Access multiplexer, e.g. DSLAM characterised by the offered subscriber services
- H04L12/2889—Multiservice, e.g. MSAN
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L61/00—Network arrangements, protocols or services for addressing or naming
- H04L61/09—Mapping addresses
- H04L61/25—Mapping addresses of the same type
- H04L61/2503—Translation of Internet protocol [IP] addresses
- H04L61/2514—Translation of Internet protocol [IP] addresses between local and global IP addresses
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L61/00—Network arrangements, protocols or services for addressing or naming
- H04L61/50—Address allocation
- H04L61/5007—Internet protocol [IP] addresses
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Abstract
The invention discloses a multi-board control method, a multi-board control system and a storage medium based on SNMP, wherein the method comprises the following steps: setting an external IP address for a CSM board card in the DSLAM equipment, and using the external IP address as an IP address for communication between the DSLAM equipment and an SNMP server; the SNMP server sends the SNMP request data packet to the IP address of the DSLAM equipment, and the SNMP request data packet is identified in a software system of the CSM board card so as to distinguish the board card of a real access object of the SNMP request data packet; the CSM board card forwards the SNMP request data packet to a plurality of target board cards so as to process the corresponding SNMP request data packet; and writing the processing result into the SNMP response data packet, sending the SNMP response data packet to the CSM board card, and forwarding the CSM board card to the SNMP server. The invention realizes that DSLAM equipment can control each independently operated board card of the equipment by only communicating with the SNMP server through one external IP address.
Description
Technical Field
The invention relates to the technical field of data processing, in particular to a multi-board control method, a multi-board control system and a storage medium based on SNMP.
Background
SNMP (simple network management protocol) is a communication protocol for a network management server to perform remote management maintenance on a network device, and is used to acquire and configure the operating states and parameters of an operating system, a hardware module and service software in the network device, and the protocol uses OID (Object ID, Object identifier, OID is a string of characters in text form, the form of which is similar to an IP address, and is formed by separating a plurality of numerical values with dot numbers, for example, "1.2.3.4.1" represents the name of the device, "1.2.3.4.2" represents the system time of the device), and defines a key value for the data in array form, and the key is used to locate a certain piece of data in the identification data array.
A DSLAM (Digital Subscriber Line Access Multiplexer) is an office device (office device generally refers to a device provided by an office providing network Access) accessing various DSL/FXS systems, and supports various Access lines such as FXS, ADSL, VDSL, SHDSL, and the like in order to meet Access types of different users. The hardware resources required for each access line type are designed as independent corresponding board types (FXS board, ADSL board, VDSL board, SHDSL board, etc.), called service boards. In addition, the DSLAM also has a CSM card as a centralized manager of other cards, and a frame of the DSLAM device provides tens of slots, and one slot supports insertion of a card.
Because there are many boards operating simultaneously in the DSLAM device, each board has its own independent hardware resources and software system (each board is considered as a subsystem in the device system); if each board card is provided with an external IP address communicated with the SNMP server, not only is management complicated, but also global management of one device as a whole is not facilitated, and a large amount of external IP addresses are wasted.
Accordingly, the prior art is yet to be improved and developed.
Disclosure of Invention
The invention mainly aims to provide a multi-board control method, a multi-board control system and a storage medium based on SNMP, and aims to solve the problems that in the prior art, a plurality of boards are controlled to be too complex, and a large number of external IP addresses are wasted.
In order to achieve the above object, the present invention provides a multi-board control method based on SNMP, which comprises the following steps:
setting an external IP address for a CSM board card in the DSLAM equipment, and using the external IP address as an IP address for communication between the DSLAM equipment and an SNMP server;
the SNMP server sends the SNMP request data packet to the IP address of the DSLAM equipment, and the SNMP server identifies the CSM board card in a software system to distinguish the real access object board card of the SNMP request data packet;
the CSM board card forwards the SNMP request data packet to a plurality of target board cards, and the plurality of target board cards respectively process the corresponding SNMP request data packet;
and writing the processing result into the SNMP response data packet and sending the SNMP response data packet to the CSM board card, and forwarding the SNMP response data packet to the SNMP server by the CSM board card.
Optionally, the SNMP-based multi-board control method includes: request to obtain a data packet and request to modify a data packet.
Optionally, in the SNMP-based multi-board control method, the request obtaining packet is configured to request obtaining of data of an identifier of an assigned object;
the request modification data packet is used for requesting to modify a certain data parameter of the managed device.
Optionally, the SNMP-based multi-board control method, wherein the SNMP response packet includes: returning a data result data packet and responding to the modification data packet.
Optionally, in the SNMP-based multi-board control method, the data return result packet is used for acquiring a data packet in response to the request and searching for the data packet in response to the request to return an acquired data value;
the response modification packet is used for feeding back a result of data modification.
Optionally, in the SNMP-based multi-board control method, the SNMP request packet is sent from the network management server to the managed device;
and the SNMP response data packet is sent to the network management server by the managed equipment.
Optionally, in the SNMP-based multi-board control method, the network management server includes an SNMP server; the managed device comprises a DSLAM device.
Optionally, in the SNMP-based multi-board control method, the SNMP server receives the SNMP response packet for communicating with a board to obtain data.
In addition, in order to achieve the above object, the present invention further provides a multi-board control system based on SNMP, wherein the multi-board control system based on SNMP comprises: the network management server and the managed device are in communication connection, and the network management server comprises an SNMP server; the managed device comprises a DSLAM device;
the DSLAM equipment is used for setting an external IP address for the CSM board card and is used as an IP address for the communication between the DSLAM equipment and the SNMP server;
the SNMP server is used for sending the SNMP request data packet to the IP address of the DSLAM equipment, and identifying the SNMP request data packet in a CSM board card software system to distinguish real access objects of the SNMP request data packet;
the CSM board card is used for forwarding the SNMP request data packet to the multiple target board cards, the multiple target board cards process the corresponding SNMP request data packet respectively, processing results are written into the SNMP response data packet and sent to the CSM board card, and the CSM board card forwards the SNMP response data packet to the SNMP server.
In addition, in order to achieve the above object, the present invention further provides a storage medium, where the storage medium stores a multi-board control program based on SNMP, and the multi-board control program based on SNMP is executed by a processor to implement the steps of the multi-board control method based on SNMP.
The CSM board card in the DSLAM equipment is provided with an external IP address and used as the IP address for the communication between the DSLAM equipment and the SNMP server; the SNMP server sends the SNMP request data packet to the IP address of the DSLAM equipment, and the SNMP request data packet is identified in a software system of the CSM board card so as to distinguish the board card of a real access object of the SNMP request data packet; the CSM board card forwards the SNMP request data packet to a plurality of target board cards, and the target board cards respectively process the corresponding SNMP request data packets; and writing the processing result into the SNMP response data packet and sending the SNMP response data packet to the CSM board card, and forwarding the SNMP response data packet to the SNMP server by the CSM board card. In the invention, each board card does not need to distribute an external IP address occupying rare space, only uses an internal IP address, and can establish communication between the board card and the SNMP server by converting the IP address of the data packet through the CSM board. The DSLAM equipment can control each independently-operated board card of the equipment by only communicating one external IP address with the SNMP server.
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FIG. 1 is a flow chart of a preferred embodiment of a multi-board control method based on SNMP of the present invention;
fig. 2 is a schematic diagram of a multi-board control system based on SNMP according to a preferred embodiment of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention clearer and clearer, the present invention is further described in detail below with reference to the accompanying drawings and examples. It should be understood that the specific embodiments described herein are merely illustrative of the invention and do not limit the invention.
As shown in fig. 1, the SNMP-based multi-board control method according to the preferred embodiment of the present invention includes the following steps:
step S10, setting an external IP address for the CSM board card in the DSLAM equipment, and using the external IP address as the IP address for the communication between the DSLAM equipment and the SNMP server;
step S20, the SNMP server sends the SNMP request data packet to the IP address of the DSLAM equipment, and the CSM board card identifies the board card of the real access object of the SNMP request data packet in the software system of the CSM board card;
step S30, the CSM board card forwards the SNMP request data packet to a plurality of target board cards, and the target board cards respectively process the corresponding SNMP request data packet;
and step S40, writing the processing result into the SNMP response data packet and sending the SNMP response data packet to the CSM board card, and forwarding the SNMP response data packet to the SNMP server by the CSM board card.
Specifically, the SNMP request packet includes: a request acquisition data packet (get-request data packet) and a request modification data packet (set-request data packet).
Wherein the request acquisition packet (get-request packet) is for requesting acquisition of data specifying an OID (object identifier); if the specified OID is the array data, the data packet also needs to carry a key value to indicate which piece of the array data the target data is. And the network management server sends the information to the managed device. For example, data specifying OID as the internet access state, and data acquiring the state of internet access 2 if key equals 2.
The network management server sends a set-request data packet (set-request data packet) to the managed device to request to modify a certain data parameter of the managed device. The request sets the value of the specified OID data, and the specified OID and the value of the data are included in the request modification packet. If the specified OID is the array data, the data packet also needs to carry a key value to indicate which one of the array data the target data is. For example, OID is specified in a set-request data packet as a parameter of the working rate of the network port, the value of the parameter of the working rate is 1000(10/100/1000 represents 10M/100M/1000M working rate respectively), and key is equal to 2; it means that the operation rate of setting portal 2 is 1000M.
Specifically, the SNMP response packet includes: a return data result packet (get-response packet) and a response modification packet (set-response packet).
Wherein, the returned data result data packet (get-response data packet) is used for responding to the get-request data packet and the get-next-request data packet (search request data packet, request to obtain the next data of the data corresponding to the key value in the array data of the appointed OID, if no key value is carried, the first data in the data array is acquiescent, the network management server sends the first data to the managed device, for example, the appointed OID is the data of the network port state, the key is equal to 2, namely, the data of the network port 3 state is obtained, because the network management server does not know the key value corresponding to all data items of the array data, the network management server can only use the get-next-request data packet to traverse to obtain all data items of the array data, when the first data is obtained, the key value is not carried, the key value of the first data is known after the first data is obtained, acquiring a second piece of data according to the key value of the first piece of data, and so on until all data entries are acquired); to return the value of the data obtained or to return an error code when the data obtained failed. The managed device sends the information to the network management server.
The network management server receives a set-response data packet (set-response data packet) from the managed device, and sends the set-response data packet (set-response data packet) to the network management server for feeding back a result of data modification, wherein the result of modification comprises success or failure of modification, and the data packet is used for responding to the set-request data packet (request for modifying the data packet), and returning an error code when the setting is successful or failed.
The SNMP request data packet is sent to the managed equipment by the network management server; and the SNMP response data packet is sent to the network management server by the managed equipment. The network management server comprises an SNMP server; the managed device comprises a DSLAM device.
The SNMP request data packet and the SNMP response data packet belong to SNMP data packets.
Furthermore, the SNMP data packet contains a password for accessing the equipment, the content of the password specified by the SNMP protocol is completely defined by the equipment, and the access cannot be denied as long as the SNMP data packet sent by the SNMP server carries password information approved by the equipment.
According to the characteristics of the password information, the structure of the password information is defined as 'n | password', the password information is divided into two parts by using an | character, the front 'n' field can be one of '1', '2', '3', and the like, the numbers '1', '2', '3', and the like represent the corresponding numbered boards in the access equipment (for example, 1 corresponds to the slot 1 and 2 corresponds to the slot 2), the rear 'password' field represents a real password character string, and the password character string is the meaning of a password string, so that the password information is a safety mechanism, and the data packet can be approved and processed only if the password in the SNMP data packet is paired. For example, the cipher string is in the form "abc 123".
When the SNMP server accesses the DSLAM equipment, one of '1', '2' and '3' is additionally added in addition to the real password information to indicate the board subsystem with the corresponding number to be accessed, and CSM board software distinguishes the forwarding target of the SNMP message according to the value of the 'n' field in the password information.
Furthermore, CSM board card software replaces the target IP in the SNMP data packet with the internal private IP of a forwarding target board card system, and replaces the source IP in the SNMP data packet with the internal private IP of a CSM board, because the number of the board cards is too large, the external IP address is not enough and is not convenient to distribute, the board cards (except the CSM board card) do not have the external IP and cannot receive the data packet of the external IP, the CSM board card replaces the external IP in the SNMP data packet with the internal IP for internal communication of the equipment, and then the internal IP of the SNMP data packet is replaced with the external IP to send the data packet to the SNMP server, and the SNMP server only recognizes the external IP and does not recognize the internal IP. For example, the IP of the SNMP server also belongs to an external IP, and the internal IP address of the board is not sent to the outside of the device, so that the same internal IP is used inside each device no matter how many devices.
And then transmitting the SNMP request data packet to a target board card (such as FXS board card, ADSL board card, VDSL board card and SHDSL board card), assembling and writing the processing result of the SNMP request data packet into an SNMP response data packet by the target board card, transmitting the internal communication private IP between the board cards to a CSM board card, replacing the source IP in the SNMP response data packet by the source IP of the CSM board card for external communication by the CSM board card, replacing the target IP by the IP address of the SNMP server, and finally transmitting the SNMP response data packet to the SNMP server.
In the invention, a CSM board card is used as a centralized manager of hardware and software resources of the equipment in the DSLAM equipment, and only one external IP address is set for the CSM board card and is used as an IP address for communication between the DSLAM equipment and an SNMP server. The SNMP server sends the SNMP request data packet to the IP address of the equipment, realizes the identification and the distinguishing of which board card the real access object of the SNMP request data packet is in a software system of the CSM board card, and then forwards the real access object to software systems of other FXS board cards, ADSL board cards, VDSL board cards and SHDSL board cards through the internal communication private IP address between the CSM board card and the other board cards; software systems of other FXS board cards, ADSL board cards, VDSL board cards and SHDSL board cards are only responsible for processing SNMP request data packets belonging to the software systems (different SNMP request data packets exist, and the different 'password information' in the SNMP request data packets are distinguished and sent to the board cards on different slot positions), and processing results are assembled and written into SNMP response data packets and sent back to the CSM board card; the CSM board card finally forwards the SNMP response data packet to the SNMP server, the SNMP server communicates with the board card to acquire data, the CSM board card transfers the SNMP request data packet sent by the SNMP server to other board cards, and transfers the SNMP response data packet sent by other board cards to the SNMP server; finally, DSLAM equipment only needs one external IP address to communicate with SNMP server, and each independently operated subsystem of the equipment can be managed.
Further, as shown in fig. 2, based on the multi-board control method based on SNMP, the present invention further provides a multi-board control system based on SNMP, wherein the multi-board control system based on SNMP comprises: the network management server and the managed device establish communication connection; the network management server includes an SNMP server 100; the managed devices include DSLAM device 200;
the DSLAM device 200 is configured to set an external IP address for the CSM board, and use the external IP address as an IP address for the DSLAM device 200 to communicate with the SNMP server 100;
the SNMP server 100 is configured to send an SNMP request packet to the IP address of the DSLAM device 200, and identify a card that is a real access object of the SNMP request packet in a CSM card software system;
the CSM board is configured to forward the SNMP request packet to the plurality of target boards, process the corresponding SNMP request packet by each of the plurality of target boards, write a processing result into the SNMP response packet, and transmit the SNMP response packet to the CSM board, and the CSM board forwards the SNMP response packet to the SNMP server 100.
The network management server is a core component of a computer local area network, a network operating system runs on the network management server, and the efficiency of the network management server directly influences the efficiency of the whole network. Therefore, a high-end computer or a dedicated server computer is generally used as the network management server. The network management server mainly has the following 4 functions:
(1) the network operating system is operated to control and coordinate the work among the computers in the network, so as to meet the requirements of users to the maximum extent and respond and process.
(2) Shared resources in a storage and management network, such as databases, files, applications, disk space, printers, plotters, and the like.
(3) For the application service of each workstation, a Client/Server (Client/Server) structure is adopted, so that the network Server not only acts as a network Server, but also acts as an application Server.
(4) Monitor and control network activities, actually manage the network, allocate system resources, understand and adjust system operating states, shut down/start up certain resources, etc.
Wherein, the SNMP request data packet comprises: request to obtain a data packet and request to modify a data packet. The request acquisition data packet is used for requesting to acquire data of the specified object identifier; the modification request data packet is used for requesting to modify a certain data parameter of the managed device.
Wherein the SNMP response packet comprises: returning a data result data packet and responding to the modification data packet. The return data result data packet is used for responding to the request acquisition data packet and requesting to search the data packet to return the acquired data value; the response modification packet is used for feeding back a result of data modification.
The SNMP request data packet is sent to the managed equipment by the network management server; and the SNMP response data packet is sent to the network management server by the managed equipment.
The invention also provides a storage medium, wherein the storage medium stores a multi-board control program based on the SNMP, and the multi-board control program based on the SNMP is executed by a processor to realize the steps of the multi-board control method based on the SNMP.
In summary, the present invention provides a multi-board control method, system and storage medium based on SNMP, where the method includes: setting an external IP address for a CSM board card in the DSLAM equipment, and using the external IP address as an IP address for communication between the DSLAM equipment and an SNMP server; the SNMP server sends the SNMP request data packet to the IP address of the DSLAM equipment, and the SNMP request data packet is identified in a software system of the CSM board card so as to distinguish the board card of a real access object of the SNMP request data packet; the CSM board card forwards the SNMP request data packet to a plurality of target board cards, and the target board cards respectively process the corresponding SNMP request data packets; and writing the processing result into the SNMP response data packet and sending the SNMP response data packet to the CSM board card, and forwarding the SNMP response data packet to the SNMP server by the CSM board card. In the invention, each board card does not need to distribute an external IP address occupying rare space, only uses an internal IP address, and can establish communication between the board card and the SNMP server by converting the IP address of the data packet through the CSM board. The DSLAM equipment can control each independently-operated board card of the equipment by only communicating one external IP address with the SNMP server.
Of course, it will be understood by those skilled in the art that all or part of the processes of the methods of the above embodiments may be implemented by a computer program instructing relevant hardware (such as a processor, a controller, etc.), and the program may be stored in a computer readable storage medium, and when executed, the program may include the processes of the above method embodiments. The storage medium may be a memory, a magnetic disk, an optical disk, etc.
It is to be understood that the invention is not limited to the examples described above, but that modifications and variations may be effected thereto by those of ordinary skill in the art in light of the foregoing description, and that all such modifications and variations are intended to be within the scope of the invention as defined by the appended claims.
Claims (10)
1. A multi-board control method based on SNMP is characterized by comprising the following steps:
setting an external IP address for a CSM board card in the DSLAM equipment, and using the external IP address as an IP address for communication between the DSLAM equipment and an SNMP server;
the SNMP server sends the SNMP request data packet to the IP address of the DSLAM equipment, and the SNMP server identifies the CSM board card in a software system to distinguish the real access object board card of the SNMP request data packet;
the CSM board card forwards the SNMP request data packet to a plurality of target board cards, and the plurality of target board cards respectively process the corresponding SNMP request data packet;
and writing the processing result into the SNMP response data packet and sending the SNMP response data packet to the CSM board card, and forwarding the SNMP response data packet to the SNMP server by the CSM board card.
2. The SNMP-based multi-board control method according to claim 1, wherein the SNMP request packet comprises: request to obtain a data packet and request to modify a data packet.
3. The SNMP-based multi-board control method according to claim 2, wherein the request acquisition packet is for requesting acquisition of data specifying an object identifier;
the modification request data packet is used for requesting to modify a certain data parameter of the managed device.
4. The SNMP-based multi-board control method according to claim 3, wherein the SNMP response packet comprises: returning a data result data packet and responding to the modification data packet.
5. The SNMP-based multi-board control method according to claim 4, wherein the return data result packet is for retrieving a packet in response to the request and searching for a packet to return the retrieved data value;
the response modification packet is used for feeding back a result of data modification.
6. The SNMP-based multi-board control method according to claim 5, wherein the SNMP request packet is sent from a network management server to a managed device;
and the SNMP response data packet is sent to the network management server by the managed equipment.
7. The SNMP-based multi-board control method according to claim 6, wherein said network management server comprises an SNMP server; the managed device comprises a DSLAM device.
8. The SNMP-based multi-board control method according to claim 1, wherein the SNMP server receives the SNMP response packet for communicating with a board to obtain data.
9. The SNMP-based multi-board control system is characterized by comprising the following components in parts by weight: the network management server and the managed device are in communication connection, and the network management server comprises an SNMP server; the managed device comprises a DSLAM device;
the DSLAM equipment is used for setting an external IP address for the CSM board card and is used as an IP address for the communication between the DSLAM equipment and the SNMP server;
the SNMP server is used for sending the SNMP request data packet to the IP address of the DSLAM equipment, and identifying the SNMP request data packet in a CSM board card software system to distinguish the real access object board card of the SNMP request data packet;
the CSM board card is used for forwarding the SNMP request data packet to the multiple target board cards, the multiple target board cards process the corresponding SNMP request data packet respectively, processing results are written into the SNMP response data packet and sent to the CSM board card, and the CSM board card forwards the SNMP response data packet to the SNMP server.
10. A storage medium storing an SNMP-based multi-board control program, the SNMP-based multi-board control program implementing the steps of the SNMP-based multi-board control method according to any one of claims 1 to 8 when executed by a processor.
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