CN112333026A - Network device, network management device and zero configuration opening system and method for network device - Google Patents

Network device, network management device and zero configuration opening system and method for network device Download PDF

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Publication number
CN112333026A
CN112333026A CN202011310284.6A CN202011310284A CN112333026A CN 112333026 A CN112333026 A CN 112333026A CN 202011310284 A CN202011310284 A CN 202011310284A CN 112333026 A CN112333026 A CN 112333026A
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file
network
zero
configuration opening
information
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高彬
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Maipu Communication Technology Co Ltd
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Maipu Communication Technology Co Ltd
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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
    • H04L41/04—Network management architectures or arrangements
    • 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
    • H04L41/08—Configuration management of networks or network elements
    • H04L41/0803—Configuration setting
    • 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
    • H04L61/5014—Internet protocol [IP] addresses using dynamic host configuration protocol [DHCP] or bootstrap protocol [BOOTP]
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L67/00—Network arrangements or protocols for supporting network services or applications
    • H04L67/01—Protocols
    • H04L67/06—Protocols specially adapted for file transfer, e.g. file transfer protocol [FTP]
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L67/00—Network arrangements or protocols for supporting network services or applications
    • H04L67/2866—Architectures; Arrangements
    • H04L67/30—Profiles
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L67/00—Network arrangements or protocols for supporting network services or applications
    • H04L67/34—Network arrangements or protocols for supporting network services or applications involving the movement of software or configuration parameters 

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  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Small-Scale Networks (AREA)
  • Data Exchanges In Wide-Area Networks (AREA)

Abstract

The invention relates to the field of network equipment management, and discloses network equipment, network management equipment, a network equipment zero configuration opening system and a network equipment zero configuration opening method, which solve the problems of low configuration efficiency and high operation and maintenance cost of a network equipment zero configuration opening scheme in the prior art. The network management equipment integrates the DHCP server module and the file server module, so that network management personnel can complete the configuration and maintenance of the DHCP server and the file server simultaneously only in one software, and the operation and maintenance efficiency is improved; in addition, a zero configuration opening management module is added in the network management software, maintains a zero configuration opening management information table, and can index the version file and the storage path of the configuration file required by the zero configuration opening through the serial number of the equipment waiting for the zero configuration opening by using the table, so that the file required by the zero configuration opening can be quickly acquired through simple message interaction between the network equipment and the network management equipment, and the efficiency of the zero configuration opening is further improved.

Description

Network device, network management device and zero configuration opening system and method for network device
Technical Field
The invention relates to the field of network equipment management, in particular to network equipment, network management equipment, a network equipment zero configuration opening system and a network equipment zero configuration opening method.
Background
In recent years, the internet industry is in a fast-developing express way, the data center is used as an infrastructure for supporting internet services, the scale of the data center is gradually enlarged along with the rapid increase of the services, and the situation that more than tens of thousands of servers exist in a single cluster is not rare any more. In the face of such a huge number of servers, a zero configuration opening (referring to a process of loading a system file, a configuration file and the like when a newly shipped device or an empty configuration device is powered on and started) of network equipment at the beginning of network construction becomes a burden of network management personnel.
A conventional zero configuration opening process of a network device is shown in fig. 1, and the implementation steps include:
step 1, preparing a version file of network equipment in advance;
2, selecting a corresponding configuration template according to a deployed architecture scene;
step 3, unpacking, centralized stacking and power-on starting of the equipment;
step 4, connecting the network equipment by using serial port lines, and upgrading versions one by one;
step 5, revising VLAN, IP, route and other basic information according to the condition of combining the configuration template with the actual equipment, then starting to refresh configuration, and in addition, according to the requirements of each company, assisting in collecting Serial Number (SN) of the equipment for asset management;
step 6, after upgrading and configuration are completed, moving the equipment to a machine room and deploying the equipment on a shelf;
and 7, completing connectivity test work based on the Checklist.
The above process is labor and time consuming. According to practical experience, the upgrading and configuration of a device are completed in about 10 minutes without stacking, and the device needs to be restarted in 30 minutes to complete the process in the stacking condition.
In summary, for a data center network scenario supporting tens of thousands of server clusters, if the data center network scenario is deployed according to such a conventional network device zero configuration opening mode, the following disadvantages may exist: the efficiency is low, the version of the network equipment is upgraded and the script is refreshed manually, the efficiency is very low, and the error rate is high; the repetitive work may lead to the internet worker being tired of the thinking, and a slight error occurs, and extra time is needed for troubleshooting error correction, resulting in a certain time loss.
In this regard, manufacturers have made much research in zero configuration opening techniques. With the increasing scale of data centers, standardized construction methods have become mainstream. The size of the server and the network device in each cluster are fixed, and the configuration policies corresponding to the network devices are also consistent (of course, the basic information such as IP is slightly different). Therefore, under the standardized and normalized scene, the repetitive and mechanical work can be compiled into processing logic and handed to the network equipment to finish the online work, so that the manpower is liberated, and meanwhile, the error risk of people is reduced.
The Alibaba group provides a new scheme for improving the zero configuration opening efficiency of the Aliskian data center network equipment, the networking structure of the scheme is shown in FIG. 2, the network equipment needs to interact with a DHCP server, an intermediate file server and a TFTP server to realize the zero configuration opening, the zero configuration opening process is shown in FIG. 3, and the method comprises the following implementation steps:
step 1, deploying a DHCP server:
the method comprises the steps of configuring an IP address pool allocated to a client by a DHCP server, and configuring the value of option options of the DHCP server, wherein RFCs of options of the options are clearly defined, but different manufacturers have differences when realizing the options, and the content of part of the option options is expanded. According to the RPC definition, the address of the intermediate file server is configured through an option 66 field, and the name of the intermediate file is configured through an option 67 field.
Step 2, deploying a file server:
editing the intermediate file to make it download version file and configuration file through TFTP server; and editing the version file and the configuration file of the opening equipment to be subjected to zero configuration.
And 3, plugging a network cable into the to-be-zero configuration switching equipment according to the network topological graph, and then switching on the power.
And 4, the zero configuration switching equipment sends a DHCP discovery message through the broadcast of the DHCP client, the DHCP server allocates a temporary IP address to the DHCP discovery message after receiving the DHCP discovery message, and the DHCP response message carries information such as an option 66 intermediate file server address, an option 67 intermediate file name and the like to the DHCP client.
And 5, after the zero configuration switching equipment receives the DHCP server response message, resolving an intermediate file server address and an intermediate file name from the message, downloading the intermediate file through the intermediate file server and executing.
And 6, analyzing the intermediate file, and downloading a corresponding version file, a corresponding configuration file and the like from a TFTP file server by taking the equipment serial number as an index.
And 7, successfully opening the zero configuration, and restarting and taking effect of the equipment.
The scheme requires that each network equipment supplier in the Ali cloud data center provides an intermediate file meeting the zero configuration opening requirement, so that the product difference of each manufacturer is shielded, and the centralized management is achieved. However, the intermediate file is edited and maintained, so that the technical difficulty of each manufacturer is increased, and meanwhile, the intermediate file needs to be downloaded and analyzed in the zero configuration opening process, so that the zero configuration opening efficiency is reduced.
Disclosure of Invention
The technical problem to be solved by the invention is as follows: the network equipment, the network management equipment and the network equipment zero configuration opening system and method are provided, and the problems of low configuration efficiency and high operation and maintenance cost of a network equipment zero configuration opening scheme in the prior art are solved.
The technical scheme adopted by the invention for solving the technical problems is as follows:
in one aspect, an embodiment of the present invention provides a network device, including:
the message generating module is used for generating a DHCP discovery message, and the DHCP discovery message carries a serial number of the network equipment;
the message sending module is used for sending the DHCP discovery message in a DHCP client broadcasting mode;
the message receiving module is used for receiving a DHCP response message fed back by the network management equipment;
the message receiving module is used for analyzing the information of the file server and the storage path information of the file required by the zero configuration opening from the DHCP response message;
and the file downloading module is used for downloading the files required by the zero configuration opening from the corresponding file server according to the information of the file server and the file storage path information.
As a further optimization, the private option 140 field of the DHCP discovery packet carries a serial number of the network device.
On the other hand, an embodiment of the present invention further provides a network management device, which includes:
the DHCP server module is used for extracting the serial number of the network equipment in a DHCP discovery message and transmitting the serial number to the zero configuration opening management module when the DHCP discovery message sent by the network equipment is received; the network equipment is also used for generating a DHCP response message, encapsulating the information of the file server corresponding to the network equipment and the storage path information of the file required by zero configuration opening in the DHCP response message, and sending the DHCP response message to the corresponding network equipment;
the file server module is used for storing files required by zero configuration opening of the network equipment;
and the zero configuration opening management module is used for indexing the information of the file server corresponding to the network equipment and the storage path information of the file required by the zero configuration opening according to the serial number of the network equipment and transmitting the information to the DHCP server module.
As a further optimization, in the DHCP reply message, the information of the file server is encapsulated in an option 66 field, and the storage path information of the file required for zero-configuration opening corresponding to the network device is encapsulated in an option 67 field.
As a further optimization, the zero-configuration opening management module is further configured to maintain a zero-configuration opening management information table, where information in the zero-configuration opening management table includes: the device serial number, the file server address, the configuration file storage path and the version file storage path information.
As a further optimization, the zero-configuration opening management module is specifically configured to index, in the zero-configuration opening management information table, information of a file server corresponding to the network device and storage path information of a file required for zero-configuration opening according to a serial number of the network device, and transmit the information to the DHCP server module.
In a third aspect, an embodiment of the present invention further provides a network device zero configuration opening system, including the above network device and a network management device.
In a fourth aspect, an embodiment of the present invention further provides a network device zero configuration opening method, which is applied to the network device zero configuration opening system, and includes the following steps:
A. after the zero configuration switching network equipment is powered on, sending a DHCP discovery message in a DHCP client broadcasting mode, wherein the DHCP discovery message carries a serial number of the network equipment;
B. when network management equipment receives a DHCP discovery message sent by network equipment, extracting a serial number of the network equipment in the DHCP discovery message;
C. the network management equipment indexes the information of the file server corresponding to the network equipment and the storage path information of the file required by zero configuration opening according to the serial number of the network equipment to generate a DHCP response message, and the information of the file server corresponding to the network equipment and the storage path information of the file required by zero configuration opening are packaged in the DHCP response message;
D. sending the DHCP response message to corresponding network equipment;
E. after receiving the DHCP response message, the corresponding network equipment analyzes the information of the file server and the storage path information of the file required by zero configuration opening;
F. and the corresponding network equipment downloads the files required by the zero configuration opening from the corresponding file service module according to the analyzed information of the file server and the file storage path information, and then restarts the equipment to complete the zero configuration opening.
As a further optimization, the information of the file server includes: a user name, a user password and a file server host address; the files required by zero configuration opening comprise: a configuration file and a version file.
As a further optimization, in step C, the zero configuration opening management module indexes, according to the serial number of the network device, the information of the file server corresponding to the network device and the storage path information of the file required for zero configuration opening in the zero configuration opening management information table, and transmits the information to the DHCP server module.
The invention has the beneficial effects that:
(1) the network management equipment integrates the DHCP server and the file server, and network management personnel can complete the configuration and maintenance of the DHCP server and the file server simultaneously only in one software, so that the operation and maintenance efficiency is improved;
(2) through the setting of the zero configuration opening management module, information such as a file server address, a configuration file storage path, a version file storage path and the like can be indexed according to the equipment serial number, so that the required zero configuration opening information can be obtained by calculation in network management software without providing intermediate files by network equipment suppliers, and the processes of editing, maintaining, synchronizing, analyzing and the like of the intermediate files are reduced;
(3) the zero configuration opening can be completed only by simple message interaction between the zero configuration opening equipment and the network management equipment, and the efficiency of the zero configuration opening is improved.
Drawings
Fig. 1 is a flow chart of a conventional zero configuration opening process of a network device;
fig. 2 is a diagram of a zero configuration opening networking architecture of a data center network device of the arii cloud;
fig. 3 is a flow chart of zero configuration opening of a data center network device of the arrhizus;
FIG. 4 is a block diagram of a network device in accordance with the present invention;
fig. 5 is a block diagram of a network management device in the present invention;
fig. 6 is a flowchart of a method for opening a network device with zero configuration according to an embodiment of the present invention.
Detailed Description
The invention aims to provide network equipment, network management equipment, a network equipment zero configuration switching system and a network equipment zero configuration switching method, and solves the problems of low configuration efficiency and high operation and maintenance cost of a network equipment zero configuration switching scheme in the prior art. The network management equipment integrates the DHCP server and the file server, so that network management personnel can complete the configuration and maintenance of the DHCP server and the file server in one software at the same time, and the operation and maintenance efficiency is improved; in addition, a zero configuration opening management module is added in the network management software, maintains a zero configuration opening management information table, and can index the version file and the storage path of the configuration file required by the zero configuration opening through the serial number of the equipment waiting for the zero configuration opening by using the table, so that the file required by the zero configuration opening can be quickly acquired through simple message interaction between the network equipment and the network management equipment, and the efficiency of the zero configuration opening is further improved.
In specific implementation, as shown in fig. 4, the network device in the present invention includes:
the message generating module is used for generating a DHCP discovery message, and the DHCP discovery message carries a serial number of the network equipment;
the message sending module is used for sending the DHCP discovery message in a DHCP client broadcasting mode;
the message receiving module is used for receiving a DHCP response message fed back by the network management equipment;
the message receiving module is used for analyzing the information of the file server and the storage path information of the file required by the zero configuration opening from the DHCP response message;
and the file downloading module is used for downloading the files required by the zero configuration opening from the corresponding file server according to the information of the file server and the file storage path information.
The network management device structure in the present invention is shown in fig. 5, and includes:
the DHCP server module is used for extracting the serial number of the network equipment in a DHCP discovery message and transmitting the serial number to the zero configuration opening management module when the DHCP discovery message sent by the network equipment is received;
the network equipment is also used for generating a DHCP response message, encapsulating the information of the file server corresponding to the network equipment and the storage path information of the file required by zero configuration opening in the DHCP response message, and sending the DHCP response message to the corresponding network equipment;
the file server module is used for storing files required by zero configuration opening of the network equipment; the file server comprises an FTP server, an SFTP server and a TFTP server, and a client can flexibly select the type of the file server according to different network scenes;
and the zero configuration opening management module is used for indexing the information of the file server corresponding to the network equipment and the storage path information of the file required by the zero configuration opening according to the serial number of the network equipment and transmitting the information to the DHCP server module.
Example (b):
before a network manager opens a zero configuration, the following configuration needs to be performed in network management equipment:
configuring a DHCP server, including a temporary IP distribution range, a default gateway and the like;
a configuration file server which comprises configuration files, version files and the like for generating the opening equipment to be configured with the configuration information in batch;
and thirdly, configuring a zero configuration opening management information table, wherein the table information comprises information such as an equipment serial number, a file server address, a configuration file storage path, a version file storage path and the like, and the specific format is shown in the following table 1.
Table 1: zero configuration opening management information table
Device serial number File server address Configuration file storage path Version file storage path
SN1 tftp://hostname /config/sn1.cfg /image/sn1.pck
SN2 tftp://hostname /config/sn2.cfg /image/sn2.pck
After the configuration work is completed, the power can be turned on by plugging a network cable into the to-be-zero-configuration opening equipment according to the networking structure, and the flow of the zero-configuration opening method is shown in fig. 6:
step 1: sending a DHCP discovery message by the switching equipment with the zero configuration:
in this step, the office equipment to be configured with zero generates a DHCP discover message, the private option 140 field of the DHCP discover message carries the unique identification serial number (SN number) of the equipment, and the DHCP discover message is broadcast and sent by the DHCP client.
Step 2: the DHCP server in the network management equipment extracts the serial number of the network equipment:
in this step, after receiving the DHCP discovery message, the DHCP server module in the network management device extracts the serial number carried in the private option 140 field and transmits the serial number to the zero-configuration opening management module.
And step 3: the zero configuration opening management module indexes file path and file server address information:
in this step, the zero-configuration opening management module indexes information such as a configuration file storage path, a software version storage path, a file server address and the like corresponding to the device according to the serial number, and then returns the information to the DHCP server.
And 4, step 4: the DHCP server packages the response message and transmits the response message to the network equipment:
in this step, the DHCP server encapsulates the response packet, which specifically includes:
the file server address information is packaged in option 66 according to a prescribed format, the format being [ file server type ]: /[ user name [: user password ] @ ] host address;
the configuration file and version file path are packaged in option 67 in the format of [ configuration file path ] @ [ version file path ], and meanwhile, the distributed information such as temporary IP address is packaged, and then the packaged DHCP response message is sent to the network equipment.
And 5: the network equipment analyzes the DHCP response message:
in this step, after receiving the DHCP response message, the network device parses the information such as the user name, password, and IP address of the file server from option 66 according to the agreed rule, and parses the information such as the remote path of the configuration file, the remote path of the version file, and the like from option 67.
Step 6: the network equipment downloads files required by zero configuration opening:
in this step, the network device accesses the corresponding file server according to the IP address of the file server obtained by parsing, downloads the upgrade software version and the configuration file through the corresponding file client after the user name and the password are verified, and finally restarts the device to complete zero-configuration opening.

Claims (10)

1. A network device, comprising:
the message generating module is used for generating a DHCP discovery message, and the DHCP discovery message carries a serial number of the network equipment;
the message sending module is used for sending a DHCP discovery message through the broadcast of the DHCP client;
the message receiving module is used for receiving a DHCP response message fed back by the network management equipment;
the message analysis module is used for analyzing the information of the file server and the storage path information of the file required by the zero configuration opening from the DHCP response message;
and the file downloading module is used for downloading the files required by the zero configuration opening from the corresponding file server according to the information of the file server and the file storage path information.
2. The network device of claim 1, wherein a private option 140 field of the DHCP discovery message carries a sequence number of the network device.
3. A network management device, comprising:
the DHCP server module is used for extracting the serial number of the network equipment in a DHCP discovery message and transmitting the serial number to the zero configuration opening management module when the DHCP discovery message sent by the network equipment is received; the network equipment is also used for generating a DHCP response message, encapsulating the information of the file server corresponding to the network equipment and the storage path information of the file required by zero configuration opening in the DHCP response message, and sending the DHCP response message to the corresponding network equipment;
the file server module is used for storing files required by zero configuration opening of the network equipment;
and the zero configuration opening management module is used for indexing the information of the file server corresponding to the network equipment and the storage path information of the file required by the zero configuration opening according to the serial number of the network equipment and transmitting the information to the DHCP server module.
4. The network management device of claim 3,
in the DHCP reply message, the information of the file server is encapsulated in an option 66 field, and the storage path information of the zero configuration opening required file corresponding to the network device is encapsulated in an option 67 field.
5. The network management device of claim 3, wherein the zero configuration opening management module is further configured to maintain a zero configuration opening management information table, where information in the zero configuration opening management table includes: the device serial number, the file server address, the configuration file storage path and the version file storage path information.
6. The network management device of claim 5,
the zero-configuration opening management module is specifically configured to index, in the zero-configuration opening management information table, information of a file server corresponding to the network device and storage path information of a file required for zero-configuration opening according to a serial number of the network device, and transmit the information to the DHCP server module.
7. A network device zero configuration opening system, characterized by comprising a network device according to claim 1 or 2 and a network management device according to any one of claims 3-6.
8. A network device zero configuration opening method applied to the network device zero configuration opening system according to claim 7, comprising the steps of:
A. after the zero configuration switching network equipment is powered on, sending a DHCP discovery message through DHCP client side broadcasting, wherein the DHCP discovery message carries a serial number of the network equipment;
B. when network management equipment receives a DHCP discovery message sent by network equipment, extracting a serial number of the network equipment in the DHCP discovery message;
C. the network management equipment indexes the information of the file server corresponding to the network equipment and the storage path information of the file required by zero configuration opening according to the serial number of the network equipment to generate a DHCP response message, and the information of the file server corresponding to the network equipment and the storage path information of the file required by zero configuration opening are packaged in the DHCP response message;
D. sending the DHCP response message to corresponding network equipment;
E. after receiving the DHCP response message, the corresponding network equipment analyzes the information of the file server and the storage path information of the file required by zero configuration opening;
F. and the corresponding network equipment downloads the files required by the zero configuration opening from the corresponding file service according to the analyzed information of the file server and the file storage path information, and then restarts the equipment to complete the zero configuration opening.
9. The network device zero configuration opening method of claim 8,
the information of the file server includes: a user name, a user password and a file server host address; the files required by zero configuration opening comprise: a configuration file and a version file.
10. The method for zero-configuration opening of network equipment according to claim 8 or 9, wherein the step specifically includes that the network management equipment indexes, in the zero-configuration opening management information table, information of a file server corresponding to the network equipment and storage path information of a file required for zero-configuration opening according to a serial number of the network equipment, and indexes, according to the serial number of the network equipment, the information of the file server corresponding to the network equipment and the storage path information of the file required for zero-configuration opening, and generates a DHCP response packet.
CN202011310284.6A 2020-11-20 2020-11-20 Network device, network management device and zero configuration opening system and method for network device Pending CN112333026A (en)

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CN113472581A (en) * 2021-07-05 2021-10-01 中国工商银行股份有限公司 Zero-contact configuration opening method and device, computer equipment and storage medium

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