CN113037537A - Management system of E1 equipment - Google Patents
Management system of E1 equipment Download PDFInfo
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- CN113037537A CN113037537A CN202110159284.9A CN202110159284A CN113037537A CN 113037537 A CN113037537 A CN 113037537A CN 202110159284 A CN202110159284 A CN 202110159284A CN 113037537 A CN113037537 A CN 113037537A
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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
- 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
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Abstract
The invention relates to the technical field of communication, and discloses a management system of E1 equipment, which comprises a network management client, a network management server, E1 local side equipment and a plurality of E1 terminals, wherein the network management client is connected with the network management server through Ethernet, the network management server is connected with the E1 local side equipment through a preset communication protocol, the E1 local side equipment is connected with the E1 terminals through an E1 line, and each E1 terminal selects one time slot of an E1 channel as a management channel. The invention realizes the light weight of E1 in-band management by using 1 time slot of E1 as a management channel, and not only supports remote management and configuration equipment, but also supports access to a network management server.
Description
Technical Field
The invention relates to the technical field of communication, in particular to a management system of E1 equipment.
Background
In a conventional E1 network, if an E1 device needs to be remotely managed, an extra management channel is often needed, such as an ethernet channel, which is not favorable for device networking, and this may increase the cost of the device, and another scheme is to use signaling No. 7, where signaling No. 7 is a signaling manner for establishing a link in a time slot and transmitting a group of channel signaling. However, this method has some problems, and when an instruction is added on the basis of the software of the signaling No. 7, it is difficult to be compatible with the existing equipment; the software of the No. 7 signaling is complex and the development difficulty is high; on the basis of No. 7 signaling, if the equipment is accessed to the network management server, the development difficulty is further improved.
Disclosure of Invention
The embodiment of the invention aims to provide a management system of E1 equipment, which realizes the light weight of E1 in-band management by using 1 time slot of E1 as a management channel, and supports both remote management and configuration equipment and access to a network management server.
In order to achieve the above object, an embodiment of the present invention provides a management system for an E1 device, including a network management client, a network management server, an E1 office device, and a plurality of E1 terminals, where the network management client is connected to the network management server through an ethernet, the network management server is connected to the E1 office device through a preset communication protocol, the E1 office device is connected to the E1 terminal through an E1 line, and each E1 terminal selects a time slot of an E1 channel as a management channel.
Preferably, the communication protocol between the E1 local side device and the E1 terminal includes a physical layer, a data link layer, a transport layer and an application layer; wherein the content of the first and second substances,
the physical layer is configured to complete frame synchronization between the E1 central office device and the E1 terminal;
the data link layer is used for realizing framing of data streams, and performing code insertion and check value insertion on effective data;
the transmission layer is used for realizing the self-definition of the data packet;
and the application layer is used for sending a data packet to the transmission layer or receiving the data packet transmitted by the transmission layer.
Preferably, the data frame of the data link layer includes an idle code, valid data, and a check value.
Preferably, the customization of the data packet includes packaging, unpacking, checking, packetizing, binding threads and defining instructions.
Preferably, the application layer adopts a C/S structure.
Preferably, the preset communication protocol is a simple network management protocol.
Compared with the prior art, the management system of the E1 equipment provided by the embodiment of the invention realizes the light weight of E1 in-band management by using 1 time slot of E1 as a management channel, and supports both remote management and equipment configuration and access to a network management server.
Drawings
Fig. 1 is a schematic structural diagram of a management system of an E1 device according to an embodiment of the present invention;
fig. 2 is a schematic diagram illustrating an implementation of a communication protocol between an E1 central office device and an E1 terminal according to an embodiment of the present invention;
fig. 3 is a schematic diagram illustrating a data frame composition of a data link layer according to an embodiment of the present invention;
fig. 4 is a schematic diagram illustrating the composition of a hexadecimal request packet and a response packet according to an embodiment of the present invention;
fig. 5 is a schematic flow chart of a data flow of an application layer according to an embodiment of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1, a schematic structural diagram of a management system of an E1 device according to embodiment 1 of the present invention is shown, where the management system includes a network management client, a network management server, an E1 office device, and a plurality of E1 terminals, where the network management client is connected to the network management server through an ethernet, the network management server is connected to the E1 office device through a preset communication protocol, the E1 office device is connected to the E1 terminal through an E1 line, and each E1 terminal selects a timeslot of an E1 channel as a management channel.
Specifically, the management system comprises a network management client, a network management server, E1 local side equipment and a plurality of E1 terminals, wherein the network management client is connected with the network management server through an ethernet, the network management server is connected with the E1 local side equipment through a preset communication protocol, the E1 local side equipment is connected with the E1 terminals through an E1 line, and each E1 terminal selects a time slot of an E1 channel as a management channel. The network management client is used by a management user, and the management user remotely manages the E1 terminal through the network management client. Generally, the network management server and the E1 office equipment are disposed in the office machine room, which is an intermediate medium for data processing, transmission and storage, and the E1 terminal is disposed in the station machine room. In the E1 channel, 32 time slots are included, and in order to implement remote management of the E1 device, the invention adopts and occupies one of the time slots as a management channel.
As an improvement of the above scheme, a communication protocol between the E1 local side device and the E1 terminal includes a physical layer, a data link layer, a transport layer and an application layer; wherein the content of the first and second substances,
the physical layer is configured to complete frame synchronization between the E1 central office device and the E1 terminal;
the data link layer is used for realizing framing of data streams, and performing code insertion and check value insertion on effective data;
the transmission layer is used for realizing the self-definition of the data packet;
and the application layer is used for sending a data packet to the transmission layer or receiving the data packet transmitted by the transmission layer.
Specifically, referring to fig. 2, a schematic diagram of implementing a communication protocol between an E1 central office device and an E1 terminal according to embodiment 2 of the present invention is shown. As can be seen from fig. 2, the communication protocol between the E1 office device and the E1 terminal includes a physical layer, a data link layer, a transport layer and an application layer; wherein the content of the first and second substances,
and the physical layer is used for completing frame synchronization of the E1 local side equipment and the E1 terminal. The physical layer refers to the E1 interface circuitry. The E1 interface circuit of the E1 local side equipment is connected with the E1 interface circuit of the E1 terminal through an E1 line, so that the functions of frame synchronization, clock synchronization and the like of the E1 local side equipment and the E1 terminal are realized.
And the data link layer is used for realizing framing of the data stream, and carrying out code insertion and check value insertion on the effective data. And when no data is transmitted in the channel, transmitting an idle code. When data is transmitted in the channel, the data is transmitted. This ensures that the HDLC module does not send invalid data to the upper layer. The effective data is subjected to code insertion, so that in order to avoid bit combinations like idle codes in the effective data, 5 continuous 1 are inserted, and one 0 is inserted. When data is received again, if 5 consecutive 1 s are found, the following 0 s are deleted. Generally, a check value is inserted behind valid data to guarantee the validity of the data. When data with error check is received, the data can be discarded or the error is reported to the upper application.
The transmission layer is used for realizing the self-definition of the data packet; that is to say, the transport layer is a self-defined proprietary protocol middleware, and can self-define the data packet according to actual needs.
And the application layer is used for sending the data packet to the transmission layer or receiving the data packet transmitted by the transmission layer. The application layer is used to implement management and configuration applications.
As an improvement of the above scheme, the data frame of the data link layer includes an idle code, valid data, and a check value.
Specifically, referring to fig. 3, a schematic diagram of a composition of a data frame of a data link layer according to embodiment 3 of the present invention is shown. The data frame of the data link layer includes an idle code, valid data, and a check value. As can be seen from fig. 3, the sequence of the idle codes, the valid data, the check value and the idle codes is shown.
As an improvement of the scheme, the customization of the data packet comprises packaging, unpacking, checking, subpackaging, thread binding and instruction defining.
Specifically, the customization of the data packet includes packaging, unpacking, checking, packetizing, binding a thread, and defining an instruction. Preferably, the customization of the data packet is realized by a hexadecimal instruction packet. Fig. 4 is a schematic diagram showing the composition of a hexadecimal request packet and a response packet provided in embodiment 4 of the present invention.
In the hexadecimal command packet, a valid packet is determined by a start mark, an end mark, a length and a check value, so that an upper layer application is allowed to continuously send a plurality of data packets at one time. After receiving the data, the transport layer needs to find out valid packets that conform to the above fields from the data stream, and send the valid packets to the upper layer application for processing.
The sequence numbers in the packets are used to bind the different threads. Each time an instruction is sent, the sequence number is incremented by 1. Each thread records the sequence number corresponding to the instruction sent by the thread. This sequence number may be used to distinguish if different threads send the same request. The response packet will return the same sequence number. When the requester receives the response packet, the sequence number can be matched and the data sent back to the thread of the response for processing.
The module ID, the instruction ID and the channel ID in the data packet are used for defining the function of the instruction, and the instructions such as checking the equipment state, configuring the channel and the like can be customized very conveniently.
As an improvement of the scheme, the application layer adopts a C/S structure.
Specifically, the application layer adopts a C/S (Client-Server) structure. Generally, the E1 office device initiates a request command, and the E1 terminal returns a response after receiving the request. The request instruction can be used for actively inquiring the device state and the configuration device of the E1 terminal for the E1 local side device.
The E1 terminal may also report the event message actively, and the E1 office device returns a confirmation response after receiving the message. For example, the E1 terminal may be used to report alarm status, etc. Fig. 5 is a schematic flow diagram of a data flow of an application layer according to embodiment 5 of the present invention.
As an improvement of the above scheme, the preset communication protocol is a simple network management protocol.
Specifically, the preset communication protocol is a simple network management protocol (SNMP for short). It should be noted that the communication protocol herein refers to a communication protocol between the network management server and the E1 office device. The E1 office device can not only interface with the network management server through the communication protocol, but also select the remote management interface connected to the E1 terminal to realize the interface with the network management server.
To sum up, the management system of the E1 device provided in the embodiment of the present invention uses 1 timeslot of E1 as a management channel, so as to implement light weight of E1 in-band management, and support both remote management and configuration of devices and access to a network management server. The invention also has the following beneficial effects: the self-defined protocol and the light weight design of software are easy to realize and expand instructions; hardware relies on 1 time slot in an E1 channel, does not occupy extra cost, and can be expanded in the existing products; the architecture of the layered design ensures the reliability of data transmission at the data link layer and the transmission layer.
While the foregoing is directed to the preferred embodiment of the present invention, it will be understood by those skilled in the art that various changes and modifications may be made without departing from the spirit and scope of the invention.
Claims (6)
1. A management system of E1 equipment is characterized by comprising a network management client, a network management server, E1 local side equipment and a plurality of E1 terminals, wherein the network management client is connected with the network management server through an Ethernet, the network management server is connected with the E1 local side equipment through a preset communication protocol, the E1 local side equipment is connected with the E1 terminals through an E1 line, and each E1 terminal selects one time slot of an E1 channel as a management channel.
2. The management system of the E1 device of claim 1, wherein the communication protocol between the E1 office device and the E1 terminal includes a physical layer, a data link layer, a transport layer, and an application layer; wherein the content of the first and second substances,
the physical layer is configured to complete frame synchronization between the E1 central office device and the E1 terminal;
the data link layer is used for realizing framing of data streams, and performing code insertion and check value insertion on effective data;
the transmission layer is used for realizing the self-definition of the data packet;
and the application layer is used for sending a data packet to the transmission layer or receiving the data packet transmitted by the transmission layer.
3. The management system of the E1 device of claim 2, wherein the data frame of the data link layer includes an idle code, valid data, and a check value.
4. The management system of the E1 device of claim 2, wherein the customization of the data package includes packaging, unpacking, checking, packetizing, binding threads, and defining instructions.
5. The management system of the E1 device of claim 2, wherein the application layer employs a C/S structure.
6. The management system of the E1 device of claim 1, wherein the preset communication protocol is a simple network management protocol.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110159284.9A CN113037537A (en) | 2021-02-04 | 2021-02-04 | Management system of E1 equipment |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202110159284.9A CN113037537A (en) | 2021-02-04 | 2021-02-04 | Management system of E1 equipment |
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| CN113037537A true CN113037537A (en) | 2021-06-25 |
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| CN202110159284.9A Pending CN113037537A (en) | 2021-02-04 | 2021-02-04 | Management system of E1 equipment |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1308795A (en) * | 1998-05-08 | 2001-08-15 | 西门子公司 | Method and base station system, for assigning channels in a radio communications system |
| CN101039249A (en) * | 2006-10-27 | 2007-09-19 | 艾默生网络能源有限公司 | Method for transmitting monitor data and multiplexing equipment |
| WO2009079818A1 (en) * | 2007-12-12 | 2009-07-02 | Zte Corporation | A method and system for remotely managing a vdsl terminal device |
| CN102202243A (en) * | 2011-06-21 | 2011-09-28 | 珠海市佳讯实业有限公司 | Method and device for detecting signalling No.7 channel based on E1 |
| CN109379764A (en) * | 2018-11-16 | 2019-02-22 | Ut斯达康通讯有限公司 | File transmitting method and device |
-
2021
- 2021-02-04 CN CN202110159284.9A patent/CN113037537A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1308795A (en) * | 1998-05-08 | 2001-08-15 | 西门子公司 | Method and base station system, for assigning channels in a radio communications system |
| CN101039249A (en) * | 2006-10-27 | 2007-09-19 | 艾默生网络能源有限公司 | Method for transmitting monitor data and multiplexing equipment |
| WO2009079818A1 (en) * | 2007-12-12 | 2009-07-02 | Zte Corporation | A method and system for remotely managing a vdsl terminal device |
| CN102202243A (en) * | 2011-06-21 | 2011-09-28 | 珠海市佳讯实业有限公司 | Method and device for detecting signalling No.7 channel based on E1 |
| CN109379764A (en) * | 2018-11-16 | 2019-02-22 | Ut斯达康通讯有限公司 | File transmitting method and device |
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Application publication date: 20210625 |
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