CN107465536B - Network management message automatic routing method and system based on multiplexing equipment - Google Patents
Network management message automatic routing method and system based on multiplexing equipment Download PDFInfo
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- CN107465536B CN107465536B CN201710534267.2A CN201710534267A CN107465536B CN 107465536 B CN107465536 B CN 107465536B CN 201710534267 A CN201710534267 A CN 201710534267A CN 107465536 B CN107465536 B CN 107465536B
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- 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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- H—ELECTRICITY
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- 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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- H—ELECTRICITY
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- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
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- H04L43/10—Active monitoring, e.g. heartbeat, ping or trace-route
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
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Abstract
The invention discloses a network management message automatic routing method based on multiplexing equipment, which comprises the following steps: dividing time slots of the E1 link, wherein one time slot is a synchronous time slot, and the other time slot is a network management time slot; the multiplexing devices are in communication connection through the E1 link; setting equipment numbers for each multiplexing equipment, and enabling the network manager to be in communication connection with the multiplexing equipment; each multiplexing device sends heartbeat messages to the multiplexing device connected with the multiplexing device through an E1 link to acquire the information of adjacent devices, and further generates a routing table; according to the number of the destination device in the network management message, the multiplexing device judges whether the multiplexing device accords with the routing item or not by scanning the routing table so as to establish the automatic routing of the network management message. The invention also discloses a system corresponding to the method and system configuration thereof. The invention can realize the remote network management function and the automatic routing function of the network management message.
Description
Technical Field
The invention belongs to the field of communication, and particularly relates to a network management message automatic routing method and system based on multiplexing equipment.
Background
The vehicle-mounted multiplexing equipment is used as multi-service multiplexing and transmission equipment and can provide a comprehensive communication function for users. Generally, a plurality of multiplexing devices are used in a manner that 2 or more multiplexing devices are jointly networked, and an E1 link is used as a communication link between the multiplexing devices, as shown in fig. 1. At present, the management and control of the multiplexing equipment are also carried out through a network manager, and the network manager is in communication connection with the multiplexing equipment. If the network management is an independent PC and the independent PC can run network management software, the multiplexing device and the network management PC can be connected by a network cable, as shown in fig. 2. As the vehicle-mounted multi-service integrated access multiplexing device, the connection between the multiplexing devices may be a wireless E1 link, which is characterized in that the position of the multiplexing device may not be fixed, but it is impossible to provide a central network manager and connect the central network manager and the multiplexing device in a wired manner such as an optical fiber or an ethernet. This entails the following disadvantages: (1) additionally and nearby configuring a PC (personal computer) as a network pipe machine for the multiplexing equipment; (2) there must be a person familiar with the service to operate the network management nearby.
Disclosure of Invention
In order to solve the above problems, the present invention provides a method and system capable of implementing remote network management function and establishing automatic routing for network management message.
The technical scheme adopted by the invention for solving the problems is as follows:
on one hand, the invention discloses a network management message automatic routing method based on multiplexing equipment, which comprises the following steps:
dividing time slots of the E1 link, wherein one time slot is a synchronous time slot, and the other time slot is a network management time slot;
the multiplexing devices are in communication connection through the E1 link;
setting equipment numbers for each multiplexing equipment, and enabling the network manager to be in communication connection with the multiplexing equipment;
each multiplexing device sends heartbeat messages to the multiplexing device connected with the multiplexing device through an E1 link to acquire the information of adjacent devices, and further generates a routing table;
according to the number of the destination device in the network management message, the multiplexing device judges whether the multiplexing device accords with the routing item or not by scanning the routing table so as to establish the automatic routing of the network management message.
As an alternative to the above technical solution of the present invention, the E1 link is divided into 32 slots.
As a preferred solution of the above technical solution of the present invention, the routing table may include a timeslot, a timeslot status, a corresponding device number, and a lifetime of the device.
As a further improvement of the above technical solution of the present invention, there are 1 spare E1 link between two multiplexing devices for automatic switching in case of failure.
As an alternative of the above technical solution of the present invention, the communication connection between the network manager and the multiplexing device is performed in the following manner: the network management and the multiplexing equipment are connected in a TCP mode.
As an alternative to the above technical solution of the present invention, the step of generating the routing table may include:
when the multiplexing equipment runs, acquiring information of adjacent equipment by sending heartbeat messages to all directions and initializing survival time so as to generate an initial routing table;
and automatically reducing the survival time once per second, and when the survival time of a certain multiplexing device is 0, indicating that the corresponding multiplexing device is abnormal, and updating the corresponding state of the routing table at the moment.
As an alternative of the above technical solution of the present invention, the multiplexing device sends heartbeat messages to each direction every 60 seconds to update the lifetime in the routing table, and updates the lifetime each time the heartbeat message is received.
As an alternative of the above technical solution of the present invention, the step of establishing an automatic routing of the network management message may include:
a) the communication processing module scans the routing table and searches the device number corresponding to the enabled time slot according to the destination device number in the network management message;
b) if the routing item meeting the condition is found, directly sending network management information to the corresponding time slot, and if the routing item meeting the condition cannot be found, directly sending the network management information to all the time slots with the enabled states;
c) the multiplexing equipment receiving the network management message checks whether the number of the destination equipment is consistent with the number of the self equipment, if so, the network management message is executed and the execution result is replied, if not, the network management message is broadcasted to all time slots except the time slot for receiving the network management message according to the routing table, and if not, the network management message is abandoned.
On the other hand, the invention discloses a network management message automatic routing system based on multiplexing equipment, which comprises:
at least two multiplexing devices which are connected in a communication mode of an E1 link, and each multiplexing device is provided with a device number; and
the network management is in communication connection with the multiplexing equipment and is configured to send network management messages to the target equipment;
wherein,
the E1 link is divided into time slots, wherein one time slot is a synchronous time slot, and the other time slot is a network management time slot;
each multiplexing device acquires information of adjacent devices by sending heartbeat messages to all directions and generates a routing table;
and according to the destination equipment number in the network management message, each multiplexing equipment judges whether the multiplexing equipment accords with the routing item or not by scanning the routing table so as to start the automatic routing of the network management message.
As an alternative of the above technical solution of the present invention, the main control part of the multiplexing device may include:
a hardware layer including a network connection module and a communication module;
the software layer comprises a communication processing module and a network management message processing module;
the network connection module is responsible for network connection between the multiplexing equipment and the network management, the communication module is responsible for integrating all network management time slots of the multiplexing equipment, the communication processing module is responsible for communication and updating of a routing table, and the network management message processing module is responsible for processing network management messages and returning execution results.
Compared with the prior art, the invention has the beneficial technical effects that:
the invention uses a time slot of the E1 link as a network management message transmission channel, thereby realizing the remote network management function, namely, controlling the remote multiplexing equipment through the local network management, and directly using the existing physical connection (E1 link) without extra connection (network cable, optical fiber, etc.); the invention has no central network management, and any multiple equipment node can be used as a network management control end; the multiplexing equipment can send heartbeat messages to peripheral multiplexing equipment through a timing period so as to detect the equipment connection condition, thereby generating a routing table, and when the network management messages need to be transmitted to remote equipment, the multiplexing equipment can determine how to send, broadcast and discard the network management messages according to the routing table, thereby realizing the automatic routing of the network management messages; when any multiplexing device is recovered to a normal state from a fault, the routing table can be automatically updated without modifying the configuration.
Drawings
FIG. 1 is a diagram illustrating a prior art communication connection between multiple multiplexing devices;
fig. 2 is a schematic diagram of communication connection between a network manager and a multiplexing device in the prior art;
FIG. 3 is a flowchart illustrating the steps of a method for automatically routing a network management message based on a multiplexing device according to the present invention;
FIG. 4 is a schematic diagram of device connection of an automatic routing system for network management messages based on multiplexing devices according to the present invention; and
fig. 5 is a schematic structural diagram of a main control part of a multiplexing device in an automatic routing system of network management messages based on the multiplexing device according to the present invention.
Detailed Description
The technical solution of the present invention is further described in detail below with reference to the accompanying drawings.
Considering that the multiplexing devices can be connected through an E1 link, the invention can directly use a time slot of the E1 link as a network management message transmission channel, thereby realizing the remote network management function. The E1 link may be wired or wireless, such as wireless E1, SDH optical transmission, RS530 transmission, as long as it is based on the concept of E1. The network management message may be a command to be executed or other message.
Therefore, according to an aspect of the present invention, a method for automatically routing a network management message based on a multiplexing device, as shown in fig. 3, may include the following steps:
the method comprises the following steps of carrying out time slot division on an E1 link, preferably, dividing the E1 link into 32 time slots, wherein one time slot is a synchronous time slot, the other time slot is a network management time slot, and the network management time slot is used as a network management message transmission channel to transmit network management messages;
the multiplexing devices are connected in communication through the E1 link, and the connection can be between adjacent devices or indirectly through other multiplexing devices;
setting equipment numbers for each multiplexing equipment, wherein the equipment numbers of the equipment cannot be repeated, and enabling the network manager to be in communication connection with the multiplexing equipment;
each multiplexing device sends a heartbeat message to the multiplexing device connected to the multiplexing device through an E1 link to obtain information of an adjacent device, so as to generate a routing table, where the heartbeat message may be as shown in table 1 below, and preferably, the routing table may include a time slot, a time slot state, a corresponding device number, and a lifetime of the device, and as shown in table 2 below, the time slot state may be on or off, and a unit of the lifetime is preferably seconds;
according to the number of the destination device in the network management message, the multiplexing device judges whether the multiplexing device accords with the routing item or not by scanning the routing table so as to establish the automatic routing of the network management message.
TABLE 1
| Name (R) | Length of | Content providing method and apparatus |
| Heartbeat message encoding | 1 | 0x70 |
| Module numbering | 2 | Module numbering |
TABLE 2
| Time slot | Time slot status | Corresponding equipment number | Lifetime of equipment |
| 0 | Activation of | 0201 | 65 |
| 1 | Activation of | 0202 | 65 |
| 2 | Activation of | 0002 | 65 |
As a further improvement of the above embodiment of the present invention, there may be 1 spare E1 link between two multiplexing devices for automatic switching in case of failure, but there may be only one primary E1 link.
As an alternative to the above embodiment of the present invention, the network manager and the multiplexing device are communicatively connected by a TCP method, and the general structure of the communication protocol is shown in table 3 below.
TABLE 3
As another embodiment of the method for automatically routing a network management message based on a multiplexing device in the present invention, the method includes the basic steps of the above embodiment, and based on the above embodiment, the step of generating a routing table by the method may include:
when the multiplexing device runs, acquiring information of adjacent devices by sending heartbeat messages to all directions and initializing survival time, so as to generate an initial routing table, wherein the acquired information of the adjacent devices can comprise a time slot sequence, a time slot state, a corresponding device number and the survival time of the devices, and the initialized survival time can be 60 seconds;
and automatically reducing the survival time once per second, and when the survival time of a certain multiplexing device is 0, indicating that the corresponding multiplexing device is abnormal, and updating the corresponding state of the routing table at the moment.
As an alternative to the above-described embodiment of the present invention, the multiplexing device may send the heartbeat message to each direction every 60 seconds to update the lifetime in the routing table, for example, once the heartbeat message lifetime is sent, the increased lifetime may be freely set, and the lifetime is updated each time the heartbeat message is received, which may also reduce the lifetime.
As another embodiment of the method for automatically routing a network management message based on a multiplexing device in the present invention, the method includes the basic steps of the above embodiment, and based on the above embodiment, the step of automatically routing the network management message may include:
a) before the network management message is sent, the communication processing module firstly scans a routing table and searches a device number corresponding to the time slot with the starting state according to a target device number in the network management message;
b) if the routing item meeting the condition is found, directly sending network management information to the corresponding time slot, and if the routing item meeting the condition cannot be found, directly sending the network management information to all the time slots with the enabled states; and
c) the multiplexing equipment receiving the network management message checks whether the number of the destination equipment is consistent with the number of the self equipment, if so, the network management message is executed and the execution result is replied, if not, the network management message is broadcasted to all time slots except the time slot for receiving the network management message according to the routing table, and if not, the network management message is abandoned.
To describe the steps of the automatic routing of the network management message in the above embodiments in more detail, taking 7 multiplexing devices as an example, and each multiplexing device is numbered as 0001, 0002, 0003, … …, and 0007, the connection manner is as shown in fig. 4, if the network management issues the network management message to the 0007 device, the automatic routing of the network management message may be embodied as follows:
firstly, network management software issues a network management message through TCP, and the address of a target device is 0007;
0001 equipment receives the network management message through TCP connection, if the message is not the message of the equipment according to the analysis and judgment of a communication protocol, the 0001 equipment scans a local routing table, and if no direct relation exists between 0007 equipment and the local 0001 equipment after scanning, the network management message is broadcasted, namely the network management message is forwarded;
the network management message reaches 0002 equipment through an E1 link, and the 0002 equipment analyzes and judges the message according to the communication protocol and does not continuously broadcast the message, but does not continuously broadcast the message;
the network management message reaches the 0006 device through the E1 link, but the network management message does not belong to the network management message, and the 0006 device is only connected with the 0002 device, and the network management message is directly abandoned because the 0002 device is not a destination device;
the network management message reaches 0003 equipment through an E1 link, and the 0003 equipment analyzes and judges the message according to the communication protocol and does not continuously broadcast the message, but the message of the equipment;
the network management message reaches 0004 equipment through an E1 link, the 0004 equipment analyzes and judges that the message is not the equipment according to the communication protocol, but scans the local routing table to find that the 0007 equipment is directly connected with the equipment, and then the network management message is sent to the 0007 equipment;
the network management message reaches 0007 equipment through an E1 link, judges that the message is the equipment message, and executes the command in the network management message body;
0007 after the device has executed the command, it sends back an execution result message to the 0001 device in the same way.
According to another aspect of the present invention, an automatic routing system for network management messages based on multiplexing devices, as still shown in fig. 4, may include:
at least 2 multiplexing devices which are connected in a communication mode of an E1 link, and each multiplexing device is provided with a device number; and
the network management is in communication connection with the multiplexing equipment and is configured to send network management messages to the target equipment;
wherein,
the E1 link is divided into time slots, wherein one time slot is a synchronous time slot, and the other time slot is a network management time slot;
each multiplexing device acquires information of adjacent devices by sending heartbeat messages to all directions and generates a routing table;
and according to the destination equipment number in the network management message, each multiplexing equipment judges whether the multiplexing equipment accords with the routing item or not by scanning the routing table so as to start the automatic routing of the network management message.
As an alternative to the above-described embodiment of the present invention, as shown in fig. 5, the main control part of the multiplexing device may include:
a hardware layer including a network connection module and a communication module; and
the software layer comprises a communication processing module and a network management message processing module;
the network connection module is responsible for network connection between the multiplexing equipment and the network management, the communication module is responsible for integrating all network management time slots of the multiplexing equipment, the communication processing module is responsible for communication and updating of a routing table, and the network management message processing module is responsible for processing network management messages and returning execution results.
Based on the system configuration, the network management messages can be divided into local network management messages and remote network management messages. As a preferred embodiment of this embodiment, the local network management message channel is: network management
Network connection module
Communication processing module
The network management command processing module and the remote network management message channel are as follows: communication module
Communication processing module
And the network management command processing module. The communication module is preferably an HDLC communication module and may be used to extract 31 timeslots of the respective communication link.
While the preferred embodiments of the present invention have been illustrated and described, it will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention as defined by the appended claims.
Claims (7)
1. A network management message automatic routing method based on multiplexing equipment is characterized by comprising the following steps:
dividing time slots of the E1 link, wherein one time slot is a synchronous time slot, and the other time slot is a network management time slot;
the multiplexing devices are in communication connection through the E1 link;
setting equipment numbers for each multiplexing equipment, and enabling the network manager to be in communication connection with the multiplexing equipment;
each multiplexing device sends heartbeat messages to the multiplexing device connected with the multiplexing device through an E1 link to acquire the information of adjacent devices, and further generates a routing table; the step of generating a routing table comprises: when the multiplexing equipment runs, acquiring information of adjacent equipment by sending heartbeat messages to all directions, initializing survival time and generating an initial routing table; the survival time is automatically reduced once every second, and when the survival time of certain multiplexing equipment is 0, the corresponding state of the routing table is updated; the routing table comprises time slots, time slot states, corresponding equipment numbers and survival time of the equipment;
according to the number of the target device in the network management message, the multiplexing device scans the routing table to judge whether the multiplexing device accords with the routing item so as to establish the automatic routing of the network management message, wherein the step of establishing the automatic routing of the network management message comprises the following steps:
a) the communication processing module scans the routing table and searches the device number corresponding to the enabled time slot according to the destination device number in the network management message;
b) if the routing item meeting the condition is found, directly sending network management information to the corresponding time slot, and if the routing item meeting the condition cannot be found, directly sending the network management information to all the time slots with the enabled states;
c) the multiplexing equipment receiving the network management message checks whether the number of the destination equipment is consistent with the number of the self equipment, if so, the network management message is executed and the execution result is replied, if not, the network management message is broadcasted to all time slots except the time slot for receiving the network management message according to the routing table, and if not, the network management message is abandoned.
2. The method of claim 1, wherein the E1 link is divided into 32 slots.
3. The method according to claim 1, wherein there are 1 spare E1 links between two multiplexing devices for automatic switching in case of failure.
4. The method for automatically routing the network management message based on the multiplexing device according to claim 1, wherein the mode of communication connection between the network management and the multiplexing device is as follows: the network management and the multiplexing equipment are connected in a TCP mode.
5. The method as claimed in claim 4, wherein the multiplexing device sends heartbeat messages to all directions every 60 seconds to update the lifetime in the routing table, and the lifetime is updated every time the heartbeat message is received.
6. A network management message automatic routing system based on multiplexing equipment is characterized in that the system comprises:
at least two multiplexing devices which are connected in a communication mode of an E1 link, and each multiplexing device is provided with a device number;
the network management is in communication connection with the multiplexing equipment and is configured to send network management messages to the target equipment;
wherein,
the E1 link is divided into time slots, wherein one time slot is a synchronous time slot, and the other time slot is a network management time slot;
each multiplexing device acquires information of adjacent devices by sending heartbeat messages to all directions and generates a routing table;
and according to the destination equipment number in the network management message, each multiplexing equipment judges whether the multiplexing equipment accords with the routing item or not by scanning the routing table so as to start the automatic routing of the network management message.
7. The system according to claim 6, wherein the main control part of the multiplexing device comprises:
a hardware layer including a network connection module and a communication module; and
the software layer comprises a communication processing module and a network management message processing module;
the network connection module is responsible for network connection between the multiplexing equipment and the network management, the communication module is responsible for integrating all network management time slots of the multiplexing equipment, the communication processing module is responsible for communication and updating of a routing table, and the network management message processing module is responsible for processing network management messages and returning execution results.
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