CN110213089B - Method and system for accessing large-scale remote zero configuration equipment to network management - Google Patents
Method and system for accessing large-scale remote zero configuration equipment to network management Download PDFInfo
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- CN110213089B CN110213089B CN201910412527.8A CN201910412527A CN110213089B CN 110213089 B CN110213089 B CN 110213089B CN 201910412527 A CN201910412527 A CN 201910412527A CN 110213089 B CN110213089 B CN 110213089B
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
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- 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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- 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
- H04L41/08—Configuration management of networks or network elements
- H04L41/0803—Configuration setting
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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
- H04L41/12—Discovery or management of network topologies
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Abstract
A method and system for accessing large-scale remote zero configuration equipment to a network management relates to the field of Ethernet exchange and transmission, and the method comprises the following steps: the network management server configures one zero configuration device as a proxy server, and the other zero configuration devices are used as clients; a management channel between the proxy server and the next-stage client is established through a private link layer discovery protocol service distribution protocol, and a management channel between the connected clients is also established step by step through the service distribution protocol; the proxy server and each client respectively obtain neighbor information in a management channel through a private LLDP link layer discovery protocol; the network management server collects neighbor information of the whole network through the proxy server to form a network topological graph, and manages the selected client according to the network topological graph. The zero configuration equipment accessed by the invention does not need to participate in pre-configuration or field configuration manually, thereby saving manpower and improving configuration efficiency.
Description
Technical Field
The invention relates to the field of Ethernet exchange and transmission, in particular to a method and a system for accessing large-scale remote zero-configuration equipment into a network manager.
Background
In the process of engineering opening, the access equipment at the end of the network has the characteristics of large quantity and scattered positions. According to the conventional engineering opening mode, two schemes exist:
the first is that the access device needs to be pre-configured, service and IP are configured for the access device according to a pre-planned scheme, and then the access device is placed at a designated position. This solution requires pre-configuring each remote access device and then placing it at a specific location, which is time and labor consuming and prone to error once the number of access devices is large.
The second is that the engineer goes to the site and opens according to the pre-planning, the remote access device is often dispersed and far away, and a large amount of manpower and time are wasted.
Disclosure of Invention
Aiming at the defects in the prior art, the invention aims to provide a method and a system for accessing a large-scale remote zero-configuration device into a network manager, wherein the accessed zero-configuration device does not need to participate in pre-configuration or field configuration manually, so that the labor is saved, and the configuration efficiency is improved.
In order to achieve the above object, on one hand, a method for accessing a large-scale remote zero-configuration device to a network manager is adopted, which comprises the following steps:
the network management server configures one zero configuration device as a proxy server, and the other zero configuration devices are used as clients;
a management channel between the proxy server and the next-stage client is established through a private link layer discovery protocol service distribution protocol, and a management channel between the connected clients is also established step by step through the service distribution protocol; the proxy server and each client respectively obtain neighbor information in a management channel through a private LLDP link layer discovery protocol;
the network management server collects neighbor information of the whole network through the proxy server to form a network topological graph, and manages the selected client according to the network topological graph.
Preferably, the establishing a management channel between the proxy server and the next-level client through the service distribution protocol includes: setting a first LLDP module in the proxy server, and setting a second LLDP module in the client; the proxy server sends the service information downwards and simultaneously informs the service information to the first LLDP module; the client receives the service information and forwards the service information downwards, simultaneously informs a second LLDP module, opens a management channel between the two LLDP modules and records the MAC address of the proxy server; after the management channel is opened, the proxy server and the next-level client mutually send LLDP frames in the management channel, and neighbor information is obtained and recorded according to the received LLDP frames.
Preferably, the step-by-step establishment of the management channel between the clients through the service distribution protocol includes: the client at the current level receives the service information sent by the client at the previous level, forwards the service information downwards and informs the second LLDP module at the current level, and a management channel is opened between the client at the current level and the second LLDP module at the client at the previous level; after the management channel of each level of client is opened, the upper level of client and the lower level of client send LLDP frames in the management channel, and the neighbor information is obtained and recorded according to the received LLDP frames.
Preferably, the recorded content of the neighbor information includes: device name + device MAC + interface number of the received protocol frame + service information.
Preferably, the network management server collects neighbor information of the whole network through the proxy server to form a network topology diagram, including: the network management server adopts an IP management proxy server, reads neighbor information on the proxy server and records the neighbor information to a local database of the network management server; the network management server reads the neighbor information of each client in turn through the proxy server and records the neighbor information to a local database; and the network management server draws a network topology map through an algorithm according to the neighbor information recorded in the local database.
Preferably, the network management server calculates a loop and a position of the loop that may exist in the network according to the network topology map, and performs the reminding.
Preferably, the step of the network management server managing the selected client according to the network topology includes: the network management server sends an SNMP protocol message of a three-layer channel to the proxy server, and the SNMP protocol message carries equipment MAC and service information of the selected client; the proxy server packages the SNMP protocol message into a two-layer channel protocol frame and sends the two-layer channel protocol frame to the corresponding client; the corresponding client receives and analyzes the SNMP protocol message into an SNMP protocol message, processes the SNMP protocol message, fills a target MAC address into a proxy server MAC, encapsulates the target MAC address into a two-layer channel protocol frame again and sends the two-layer channel protocol frame back; and after receiving the reply of the corresponding client, the proxy server encapsulates the reply into an SNMP protocol message of the three-layer channel again and sends the SNMP protocol message to the network management server.
On the other hand, the invention provides a system for accessing large-scale remote zero configuration equipment into a network management, which comprises a network management server and a plurality of accessed zero configuration equipment, wherein one zero configuration equipment is configured as a proxy server, and the rest zero configuration equipment is used as a client;
a management channel established by a service distribution protocol is arranged between the proxy server and the next-level client as well as between the two connected clients, and the proxy server and each client are respectively used for acquiring neighbor information in the management channel by a private LLDP protocol;
the network management server is used for collecting neighbor information of the whole network through the proxy server to form a network topological graph and managing the selected client according to the network topological graph.
Preferably, the proxy server includes a first service distribution protocol module and a first LLDP protocol module, the client includes a second service distribution protocol module and a second LLDP protocol module, and a service channel is provided between the first service distribution protocol module and the second service distribution protocol module of the next-stage client; the first service distribution protocol module sends service information to the second service distribution protocol module through the service channel, and simultaneously the first service distribution protocol module informs the first LLDP module of the service information; after receiving the service information, the second service distribution protocol module informs the second LLDP module of the service information, and opens a management channel between the two LLDP modules; the client stores the MAC address of the proxy server; and the first LLDP module and the second LLDP module acquire and record neighbor information according to the LLDP frame sent from the opposite end in the management channel.
Preferably, a service channel is arranged between the second LLDP modules of the two clients connected to each other; the second service distribution protocol module of the client receives the service information through the service channel, forwards the service information to the client through the service channel, simultaneously informs the second LLDP module of the client at the current level, and gets through a management channel between the second LLDP module and the second LLDP module in the client at the previous level; the client of the current level and the client of the last level obtain the neighbor information and record the neighbor information according to the link layer discovery protocol frame sent by the opposite end in the management channel.
Preferably, the proxy server further includes a first message conversion module and a first SNMP protocol stack, where the first message conversion module is configured to convert an SNMP protocol message of a three-layer channel sent by the network management server into a two-layer channel protocol frame, and is further configured to convert a two-layer channel protocol frame of the client into an SNMP protocol message; the first SNMP protocol stack is used for processing an SNMP management message sent to the proxy server by the network management server;
the client comprises a second message conversion module and a second SNMP protocol stack, and is used for reducing the two-layer channel protocol frame into an SNMP protocol message and repackaging the SNMP protocol message processed by the SNMP protocol stack into the two-layer channel protocol frame; and the second SNMP protocol stack is used for processing the restored SNMP protocol message.
Preferably, the network management server is further configured to calculate a loop and a position of the loop that may exist in the network according to the network topology, and perform the reminding.
One of the above technical solutions has the following beneficial effects:
1. the invention only needs to configure the proxy server, the proxy server as the server is arranged on the server layer and can be positioned in the central machine room, the management is easy, the configuration is simple, the zero configuration equipment as the server does not need strong processing capacity, and any equipment supporting the zero configuration can be used as the server; other accessed zero-configuration equipment does not need any configuration, and the access network can be managed, so that the operation is simple. And manual configuration is not needed, and particularly for remote zero configuration equipment, the engineering starting time is greatly reduced.
2. The invention is implemented by software in the whole course, no additional hardware cost is increased, and the invention supports a multi-level topological structure, and can also have ring-forming reminding after generating a network topological graph, thereby avoiding the influence on the service after the project is opened.
3. The access quantity of the zero configuration equipment in the network is not limited, the main network information collection and topology drawing work is carried out on a network management server, and the operational capability of the network management server is enough to realize the support function. And the time-consuming work is only one-time without repeated operation.
4. The management data can directly reach the appointed client through the proxy server, and is a unicast data frame, so that no broadcast or multicast is generated, the occupied network resources are reduced, the situation of mistakenly configuring other equipment is avoided, the protocols are slow protocols, protocol messages occupy little network bandwidth, and the normal service is basically not influenced.
5. The network management server can support the graphical automatic topology drawing, and the topology construction time is reduced; the method can be used for upgrading the remote device and detecting the connectivity of the remote device by supporting two-layer-based telnet, ftp get, ftp put, ping, trace and the like through a server; the zero configuration equipment can support alarm, trap and performance report through the proxy server; devices can be added or removed from the existing network at any time according to the requirements, and the topology can be refreshed at any time.
Drawings
Fig. 1 is a flowchart of a method for accessing a large-scale remote zero-configuration device to a network management system according to an embodiment of the present invention;
fig. 2 is a network topology diagram of a large-scale remote zero-configuration device accessing a network manager according to an embodiment of the present invention;
FIG. 3 is a schematic diagram of a system for accessing a large-scale remote zero-configuration device to a network management system according to an embodiment of the present invention;
fig. 4 is a schematic diagram of another embodiment of a system for accessing a large-scale remote zero-configuration device to a network management system according to the present invention.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings and examples.
As shown in fig. 1, the method for accessing a large-scale remote zero configuration device to a network manager in this embodiment includes the steps of:
s101, for all zero configuration devices to be accessed to a network manager, one of the zero configuration devices is configured to be a proxy server (server role), and the rest zero configuration devices are used as clients, that is, all the rest zero configuration devices in the network are defaulted to be client roles.
S102, a management channel between the proxy server and the next-level client is established through a service distribution protocol, and the management channel between the connected clients is established step by step through the service distribution protocol. After the management channel is opened, the proxy server, the next-stage client and the two connected stages of clients send LLDP (Link Layer Discovery Protocol) frames to each other in the management channel, and the proxy server and each client respectively discover neighbors and store neighbor information in the management channel through a private LLDP Protocol.
Specifically, the neighbor information is obtained through an LLDP frame sent from the peer, and the neighbor information is recorded or updated in real time, where the payload content of the LLDP frame is as follows: the equipment name + the equipment MAC + the interface number of the received protocol frame + the service information; the recorded content of the neighbour information thus comprises: the device name + the device MAC + the interface number of the received protocol frame + the service information, where the device refers to a zero configuration device that sends neighbor information.
And S103, the network management server collects neighbor information of the whole network through the proxy server to form a network topological graph, and manages the selected client according to the network topological graph. In this embodiment, a graphical network management server is adopted.
Specifically, the network management server adopts an IP management proxy server, reads neighbor information of the proxy server, and records the neighbor information to a local database. In addition, the network management server reads the neighbor information of each client in sequence through the proxy server, namely obtains the MAC address of the neighbor device from the neighbor information of the proxy server, and then reads the neighbor information from the telnet MAC to the next-level client, so that the neighbor information of the whole network is collected in a step-by-step discovery mode and is also recorded into the local database.
All the neighbor information of the zero configuration device accessing the network is stored in the local database of the network management server, and as shown in fig. 2, the network management server draws a detailed network topology map according to the neighbor information of all the zero configuration devices. Through the algorithm, the loop which may exist in the network and the position where the loop may appear can be calculated, the user is reminded, and the influence on the service after the project is opened is avoided. After the network topology map is generated, the network management server can perform network management on the selected zero configuration device.
Based on the foregoing embodiments, the step of establishing a management channel between the proxy server and the next-level client through the private service distribution protocol module is described in detail in this embodiment.
Firstly, a first LLDP module is arranged in the proxy server, and a second LLDP module is arranged at the client.
Then, the proxy server sends the service information of the management channel downwards, and simultaneously informs the first LLDP module of the service information.
And the next-level client receives the service information, if the client is not connected with other clients, the service information is issued to the zero-configuration equipment hardware where the client is located as long as the client is notified of the service information by a second LLDP module of the client, so that an upward management channel is opened. And if the client is connected with other clients, receiving the service information, forwarding the service information downwards in the original shape, simultaneously notifying a second LLDP module of the client, and issuing the service information to zero-configuration equipment hardware where the client is located so as to open an upward management channel.
At this time, the management channel between the proxy server and the next-level client is opened, the proxy server and the next-level client send LLDP frames in the management channel, and obtain and record neighbor information according to the received LLDP frames, and record the MAC address of the proxy server.
Based on the above embodiments, the step of establishing the management channel between the clients step by step through the private service distribution protocol module is described in detail in this embodiment.
In addition, the client at the current stage receives the service information issued by the client at the previous stage, and if the client at the next stage exists, the service information is forwarded downwards and announced to a second LLDP module of the client at the current stage; if no next-level client exists, only the second LLDP module of the current-level client is notified, so that an upward management channel is opened, and the downward forwarding is not carried out any more.
When a plurality of stages of clients are connected, a management channel is opened stage by stage at one stage, after the management channel is opened, the upper stage of client and the lower stage of client send LLDP frames in the management channel, and obtain and record neighbor information according to the received LLDP frames, and record the MAC address of the proxy server.
After the network topology is completed, another embodiment is provided to explain in detail the step of the network management server managing the selected client according to the network topology.
S201, the network management server obtains the MAC address and the service information of the client (zero configuration equipment) needing to be managed from the local database. And then sending an SNMP (Simple Network Management Protocol) Protocol message of the three-layer channel to the proxy server, wherein the SNMP Protocol message carries the equipment MAC and the service information of the selected client.
S202, after receiving the SNMP message, the proxy server packages the SNMP message into a two-layer channel and sends the SNMP message to a corresponding client.
S203, the corresponding client receives the two-layer channel protocol frame, records the service information in the two-layer channel protocol frame, decapsulates the two-layer channel protocol frame, restores the SNMP message and processes the SNMP message.
S204, because the SNMP message of the response lacks IP information, the message can be encapsulated into a two-layer channel again, the target MAC is changed from the equipment MAC to the proxy server MAC, and the service information is recorded information and then is sent back from the receiving port.
S205, after receiving the two-layer channel protocol frame replied by the corresponding client, the proxy server restores the SNMP message, fills in the IP information of the network management server and the IP address of the proxy server, encapsulates the SNMP message into the SNMP protocol message of the three-layer channel again and sends the SNMP protocol message to the network management server. At this point, a network management process ends.
Based on the above process, if the remote zero configuration device sends the alarm and TRAP information, the mode is the same as the process of the zero configuration device responding the SNMP message in step S204.
In other embodiments, if one device is spanned between the proxy server and the client, if the spanned device does not support the transmission method of the present invention, the device does not analyze the service information, the LLDP frame, and the SNMP management packet sent by the proxy server, but directly transmits the packet to the client, and then the client performs transmission according to the above process, and the client can be regarded as a next-level client of the proxy server.
As shown in fig. 3, based on the foregoing embodiment, a system embodiment for accessing a large-scale remote zero configuration device to a network manager is also provided. The system for accessing the large-scale remote zero configuration equipment to the network management comprises a network management server and a plurality of accessed zero configuration equipment, wherein one zero configuration equipment is configured as a proxy server (server), and the other zero configuration equipment is used as a client (client). In this embodiment, there is only one proxy server and one next-level client.
A management channel established by a service distribution protocol is arranged between the proxy server and the next-level client, and the proxy server and the client are respectively used for acquiring neighbor information in the management channel through a private LLDP protocol. The network management server is used for collecting neighbor information of the whole network through the proxy server, recording the neighbor information to the local database, drawing a network topological graph according to the information recorded in the local database, and managing the selected client according to the network topological graph.
The proxy server comprises a first service distribution protocol module and a first LLDP module, and the client comprises a second service distribution protocol module and a second LLDP module. A service channel is arranged between the first service distribution protocol module and the second service distribution protocol module of the client.
Specifically, the first service distribution protocol module issues service information to the second service distribution protocol module through the service channel, and meanwhile, the first service distribution protocol module notifies the first LLDP module of the service information; and after receiving the service information, the second service distribution protocol module informs the second LLDP module of the service information and opens up a management channel between the two LLDP modules.
The first LLDP module and the second LLDP module send LLDP frames to each other in a communicated management channel, and acquire and record neighbor information according to the LLDP frames sent from opposite ends in the management channel; and the client stores the MAC address of the proxy server.
And the network management server generates a network topological graph according to all the collected neighbor information and manages any client in the graph.
The proxy server also comprises a first message conversion module and a first SNMP protocol stack, and the client comprises a second message conversion module and a second SNMP protocol stack. The network management server sends the SNMP protocol message carrying the MAC address and the service information of the target equipment to the proxy server through the three-layer channel, and the first message conversion module packages the SNMP management message into the two-layer channel to form a two-layer channel protocol frame and sends the two-layer channel protocol frame to the corresponding client.
After receiving the two-layer channel protocol frame, the corresponding client decapsulates and restores the two-layer channel protocol frame into an SNMP message which is sent to a second SNMP protocol stack for processing, the second SNMP protocol stack finishes processing and encapsulates the SNMP message into the two-layer channel protocol frame, and the target MAC address is set as a proxy server MAC address and then sent back from the received port.
After receiving the replied two-layer channel protocol frame, the proxy server decapsulates and converts the recovered SNMP message, fills the IP information of the network management server and the IP address of the proxy server, and sends the IP information and the IP address to the network management server.
In addition, when the network management server manages the proxy server, the network management server sends an SNMP management message to the proxy server, and the first SNMP protocol stack is used for processing the SNMP management message.
As shown in fig. 4, another embodiment of a system for providing access to a network management by a large-scale remote zero-configuration device is provided, and this embodiment is basically the same as the previous embodiment, except that in this embodiment, two stages of clients, namely a client a and a client B, are provided, and a service channel is provided between second service distribution protocol modules of the two interconnected clients.
In this embodiment, the proxy server issues the service information through the service channel via the first service distribution protocol module, the second service distribution protocol module of the client a receives the service information and forwards the service information to the second service distribution protocol module of the client B, and meanwhile, the second service distribution protocol module of the client a notifies the second LLDP module of the service information, so as to open the management channel between the client a and the proxy server, and the client a stores the MAC address of the proxy server. At this time, the client a and the proxy server respectively obtain and record neighbor information according to the LLDP frame sent from the opposite end in the management channel.
And after receiving the service information sent by the client, the second service distribution protocol module of the client B informs the second LLDP module of the service information, and a management channel between the client B and the client A is opened. At this time, the client A and the client B respectively obtain and record neighbor information according to the LLDP frame sent from the opposite end in the management channel.
When the management server needs to manage the client B, the network management server sends an SNMP protocol message carrying the MAC address and the service information of the client B to the proxy server through the three-layer channel, and the proxy server encapsulates the SNMP management message into a two-layer channel protocol frame and directly sends the two-layer channel protocol frame to the client B. It should be noted that, for better clarity, the client B in fig. 2 only shows the second service distribution protocol module and the second LLDP module.
In the above embodiment, the proxy server and the client default to operate the SNMP protocol including the private part, the SNMP protocol increases the conversion between the three-layer channel and the two-layer channel, the LLDP protocol including the private part increases the support of broadcast messages, and the transmission of neighbor information in multiple service channels is increased, so as to penetrate the network of others, and a private service distribution protocol (as client) and a private two-layer channel protocol are added.
By setting the proxy server, when the proxy server issues the service information, a management channel is established through a private service distribution protocol module, the next-level client gets through the upward management channel while receiving the service information, the neighbor information is obtained through the LLDP module, and meanwhile, the previous-level client and the proxy server can also obtain the neighbor information in the management channel. Therefore, the network management server can acquire the neighbor information of the proxy server through the IP management proxy server and sequentially acquire the neighbor information of the clients through the proxy server, and accordingly a network topology map is generated, so that the network management server can manage the selected clients in the map according to the network topology map. The method and the system can enable the remote zero configuration equipment to be accessed to the network management server without any operation, save a large amount of project opening time and greatly reduce the project cost.
The invention can also support automatic drawing of topology, and save the process of adding equipment to construct topology on the graph; various connectivity detection means of the line are supported, various alarm reports are supported, and the network can be diagnosed and the network performance can be checked.
In conclusion, the invention can support the connection of the remote zero-configuration equipment with the network management, greatly improve the engineering opening efficiency, save the cost and reduce the workload of engineering opening personnel, and the characteristics of various network diagnosis methods and network topologies can be changed randomly according to requirements, thereby reducing the subsequent maintenance difficulty, and finding the loop by software algorithm to provide a place where the loop can be formed.
The present invention is not limited to the above-described embodiments, and it will be apparent to those skilled in the art that various modifications and improvements can be made without departing from the principle of the present invention, and such modifications and improvements are also considered to be within the scope of the present invention. Those not described in detail in this specification are within the skill of the art.
Claims (11)
1. A method for accessing large-scale remote zero configuration equipment to a network manager is characterized by comprising the following steps:
the network management server configures one zero configuration device as a proxy server, and the other zero configuration devices are used as clients;
establishing a management channel between the proxy server and the next-level client through a private link layer discovery protocol service distribution protocol: setting a first LLDP module in the proxy server, and setting a second LLDP module in the client; the proxy server sends the service information downwards and simultaneously informs the service information to the first LLDP module; the client receives the service information and forwards the service information downwards, simultaneously informs a second LLDP module, opens a management channel between the two LLDP modules and records the MAC address of the proxy server;
and further establishing a management channel between the connected clients step by step through a service distribution protocol: the client at the current level receives the service information sent by the client at the previous level, forwards the service information downwards and informs the second LLDP module at the current level, and a management channel is opened between the client at the current level and the second LLDP module at the client at the previous level;
the proxy server and each client respectively obtain neighbor information in a management channel through a private LLDP link layer discovery protocol; the recorded content of the neighbor information includes: the equipment name + the equipment MAC + the interface number of the received protocol frame + the service information;
the network management server collects neighbor information of the whole network through the proxy server to form a network topological graph, and manages the selected client according to the network topological graph.
2. The method for accessing a network manager by a large-scale remote zero-configuration device according to claim 1, wherein the establishing a management channel between the proxy server and the next-level client via the service distribution protocol comprises:
after the management channel is opened, the proxy server and the next-level client mutually send LLDP frames in the management channel, and neighbor information is obtained and recorded according to the received LLDP frames.
3. The method for accessing the network management by the large-scale remote zero-configuration device according to claim 2, wherein the step-by-step establishment of the management channel between the clients through the service distribution protocol comprises:
after the management channel of each level of client is opened, the upper level of client and the lower level of client send LLDP frames in the management channel, and the neighbor information is obtained and recorded according to the received LLDP frames.
4. The method for accessing a network manager by a large-scale remote zero-configuration device according to claim 1, wherein the step of the network manager server collecting neighbor information of the entire network through the proxy server to form a network topology map comprises:
the network management server adopts an IP management proxy server, reads neighbor information on the proxy server and records the neighbor information to a local database of the network management server;
the network management server reads the neighbor information of each client in turn through the proxy server and records the neighbor information to a local database;
and the network management server draws a network topology map through an algorithm according to the neighbor information recorded in the local database.
5. The method for accessing the network management of the large-scale remote zero-configuration device according to claim 1, wherein the network management server calculates a loop and a position of the loop that may exist in the network according to the network topology map, and performs the reminding.
6. The method for accessing the network management of the large-scale remote zero-configuration device according to claim 1, wherein the step of the network management server managing the selected client according to the network topology comprises:
the network management server sends an SNMP protocol message of a three-layer channel to the proxy server, and the SNMP protocol message carries equipment MAC and service information of the selected client;
the proxy server packages the SNMP protocol message into a two-layer channel protocol frame and sends the two-layer channel protocol frame to the corresponding client;
the corresponding client receives and analyzes the SNMP protocol message into an SNMP protocol message, processes the SNMP protocol message, fills a target MAC address into a proxy server MAC, encapsulates the target MAC address into a two-layer channel protocol frame again and sends the two-layer channel protocol frame back;
and after receiving the reply of the corresponding client, the proxy server encapsulates the reply into an SNMP protocol message of the three-layer channel again and sends the SNMP protocol message to the network management server.
7. A system for accessing large-scale remote zero configuration equipment into a network manager is characterized by comprising a network management server and a plurality of accessed zero configuration equipment, wherein one zero configuration equipment is configured as a proxy server, and the rest zero configuration equipment is used as a client;
a management channel established by a service distribution protocol is arranged between the proxy server and the next-level client as well as between the two connected clients, and the proxy server and each client are respectively used for acquiring neighbor information in the management channel by a private LLDP protocol;
the network management server is used for collecting neighbor information of the whole network through the proxy server to form a network topological graph and managing the selected client according to the network topological graph;
the proxy server comprises a first service distribution protocol module and a first LLDP protocol module, the client comprises a second service distribution protocol module and a second LLDP protocol module, and a service channel is arranged between the first service distribution protocol module and the second service distribution protocol module of the next-level client;
the first service distribution protocol module sends service information to the second service distribution protocol module through the service channel, and simultaneously the first service distribution protocol module informs the first LLDP module of the service information;
after receiving the service information, the second service distribution protocol module informs the second LLDP module of the service information, and opens a management channel between the two LLDP modules; the client stores the MAC address of the proxy server;
a service channel is arranged between the second LLDP modules of the two interconnected clients;
the second service distribution protocol module of the client receives the service information through the service channel, forwards the service information to the client through the service channel, simultaneously informs the second LLDP module of the client at the current level, and gets through a management channel between the second LLDP module and the second LLDP module in the client at the previous level;
the recorded content of the neighbor information includes: device name + device MAC + interface number of the received protocol frame + service information.
8. The system for accessing a large-scale remote zero-configuration device to a network manager according to claim 7, wherein:
and the first LLDP module and the second LLDP module acquire and record neighbor information according to the LLDP frame sent from the opposite end in the management channel.
9. The system for accessing a large-scale remote zero-configuration device to a network manager according to claim 8, wherein:
the client of the current level and the client of the last level obtain the neighbor information and record the neighbor information according to the link layer discovery protocol frame sent by the opposite end in the management channel.
10. The system for accessing a large-scale remote zero-configuration device to a network manager according to claim 8 or 9, wherein:
the proxy server also comprises a first message conversion module and a first SNMP protocol stack, wherein the first message conversion module is used for converting the SNMP protocol message of the three-layer channel sent by the network management server into a two-layer channel protocol frame and converting the two-layer channel protocol frame of the client into the SNMP protocol message; the first SNMP protocol stack is used for processing an SNMP management message sent to the proxy server by the network management server;
the client comprises a second message conversion module and a second SNMP protocol stack, and is used for reducing the two-layer channel protocol frame into an SNMP protocol message and repackaging the SNMP protocol message processed by the SNMP protocol stack into the two-layer channel protocol frame; and the second SNMP protocol stack is used for processing the restored SNMP protocol message.
11. The system for accessing a large-scale remote zero-configuration device to a network manager according to claim 7, wherein: and the network management server is also used for calculating loops possibly existing in the network and the positions of the loops according to the network topological graph and reminding.
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| CN113300879A (en) * | 2021-04-13 | 2021-08-24 | 深圳万物安全科技有限公司 | Method, system and computer readable medium for zero configuration opening of equipment |
| CN114449049A (en) * | 2022-01-19 | 2022-05-06 | 广东优力普物联科技有限公司 | Communication device and communication system based on light management data interaction |
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