CN109729388B - Method and device for switching video networking servers - Google Patents
Method and device for switching video networking servers Download PDFInfo
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Abstract
The invention provides a method and a device for switching a video networking server. The method comprises the following steps: when the video networking monitoring unified management platform is accessed to the video networking for the first time, receiving a first networking request broadcast packet sent by a first video networking server and a second networking request broadcast packet sent by a second video networking server; determining priorities corresponding to the first video network server and the second video network server respectively according to the first network access request broadcast packet and the second network access request broadcast packet; when the priority of the first video network server is higher than that of the second video network server, establishing network connection with the first video network server; when the first video network server is abnormal, disconnecting the network connection with the first video network server; and receiving a second network access request broadcast packet, and establishing network connection with a second video network server according to the second network access request broadcast packet. The invention solves the problem that the Mserver can not work normally due to server failure.
Description
Technical Field
The invention relates to the technical field of video networking, in particular to a video networking server switching method and a video networking server switching device.
Background
The video networking is an important milestone for network development, is a higher-level form of the internet, is a real-time network, can realize the real-time transmission of full-network high-definition videos which cannot be realized by the existing internet, pushes a plurality of internet applications to high-definition video, and enables a video networking conference based on the video networking technology to be developed rapidly, wherein the high-definition video is face to face.
When only one server exists in the video network, all services in the video network cannot normally run when the server cannot normally run under the abnormal condition.
Disclosure of Invention
In view of the above problems, embodiments of the present invention are proposed to provide a switching method of an internet of view server and a corresponding switching device of an internet of view server that overcome or at least partially solve the above problems.
In order to solve the above problem, an embodiment of the present invention discloses a method for switching a video networking server, which is applied to a video networking monitoring unified management platform, and includes: when the video network monitoring unified management platform is accessed to the video network for the first time, receiving a first network access request broadcast packet sent by a first video network server and a second network access request broadcast packet sent by a second video network server; determining priorities corresponding to the first video network server and the second video network server respectively according to the first network access request broadcast packet and the second network access request broadcast packet; establishing a network connection with the first video network server when the priority of the first video network server is higher than the priority of the second video network server; when the first video network server is abnormal, disconnecting the network connection with the first video network server; and receiving the second network access request broadcast packet, and establishing network connection with the second video network server according to the second network access request broadcast packet.
Preferably, the step of disconnecting the network connection with the first internet-of-view server when the first internet-of-view server is abnormal includes: monitoring whether a first heartbeat packet sent by the first video network server is received within a first preset time; and under the condition that the first heartbeat packet is not received within the first preset time, disconnecting the network connection with the first video network server.
Preferably, after the step of establishing a network connection with the first video network server, the method further comprises: when the restart operation of the video networking monitoring unified management platform is monitored, the MAC address of the first video networking server which is locally recorded and is networked last time is obtained; receiving a network access request broadcast packet; the network access request broadcast packet comprises target MAC addresses of all video network servers; matching the MAC address with each target MAC address one by one; when the matching is successful, establishing network connection with the first video network server; and when the matching fails, acquiring the priority of each video network server, selecting a target video network server with the highest priority from each video network server, and establishing network connection with the target video network server.
Preferably, after the step of establishing a network connection with the first video network server, the method further comprises: under the condition that the restart operation of the video networking monitoring unified management platform is monitored and the first video networking server and the second video networking server are normal, judging whether a third network access request broadcast packet sent by the first video networking server is received or not; under the condition that the third network access request broadcast packet is not received, after waiting for a set time, judging whether the third network access request broadcast packet is received or not; if so, establishing network connection with the first video network server; and if not, receiving the second network access request broadcast packet, and establishing network connection with the second video network server.
Preferably, after the step of receiving the second network access request broadcast packet and establishing a network connection with the second video network server according to the second network access request broadcast packet, the method further includes: when the first video network server recovers the working state, judging whether a second heartbeat packet sent by the second video network server is received or not; continuously establishing a network connection with the second video network server under the condition that the second heartbeat packet is received; and under the condition that the second heartbeat packet is not received within second preset time, receiving a fourth network access request broadcast packet sent by the first video network server, and establishing network connection with the first video network server.
In order to solve the above problem, an embodiment of the present invention further discloses a device for switching a video networking server, which is applied to a video networking monitoring unified management platform, and includes: the first network access request packet receiving module is used for receiving a first network access request broadcast packet sent by a first video network server and a second network access request broadcast packet sent by a second video network server when the video network monitoring unified management platform is accessed to the video network for the first time; the server priority determining module is used for determining the priorities corresponding to the first video network server and the second video network server respectively according to the first network access request broadcast packet and the second network access request broadcast packet; the first network connection establishing module is used for establishing network connection with the first video network server when the priority of the first video network server is higher than the priority of the second video network server; the first network connection disconnection module is used for disconnecting the network connection with the first video network server when the first video network server is abnormal; and the second network connection establishing module is used for receiving the second network access request broadcast packet and establishing network connection with the second video network server according to the second network access request broadcast packet.
Preferably, the first network connection disconnection module includes: the first heartbeat packet monitoring submodule is used for monitoring whether a first heartbeat packet sent by the first video network server is received within first preset time; and the first network connection disconnection submodule is used for disconnecting the network connection with the first video network server under the condition that the first heartbeat packet is not received within the first preset time.
Preferably, the method further comprises the following steps: the MAC address acquisition module is used for acquiring the locally recorded MAC address of the first video network server networked last time when the restart operation of the video network monitoring unified management platform is monitored; the second network access request packet receiving module is used for receiving a network access request broadcast packet; the network access request broadcast packet comprises target MAC addresses of all video network servers; the MAC address matching module is used for matching the MAC address with each target MAC address one by one; the third network connection establishing module is used for establishing network connection with the first video network server when the matching is successful; and the fourth network connection establishing module is used for acquiring the priority of each video network server when the matching fails, selecting a target video network server with the highest priority from each video network server, and establishing network connection with the target video network server.
Preferably, the method further comprises the following steps: the first network access request packet judging module is used for judging whether a third network access request broadcast packet sent by the first video network server is received or not under the condition that the restart operation of the video network monitoring unified management platform is monitored and the first video network server and the second video network server are normal; a second network access request packet judgment module, configured to judge whether the third network access request broadcast packet is received or not after waiting for a set time under the condition that the third network access request broadcast packet is not received; a fifth network connection establishing module, configured to establish a network connection with the first video network server when the third network access request broadcast packet is received; and the sixth network connection establishing module is used for receiving the second network access request broadcast packet and establishing network connection with the second video network server under the condition that the third network access request broadcast packet is not received.
Preferably, the method further comprises the following steps: the second heartbeat packet receiving module is used for judging whether a second heartbeat packet sent by the second video network server is received or not when the first video network server restores the working state; a seventh network connection establishing module, configured to continuously establish a network connection with the second video network server when the second heartbeat packet is received; and the eighth network connection establishing module is used for receiving a fourth network access request broadcast packet sent by the first video network server and establishing network connection with the first video network server under the condition that the second heartbeat packet is not received within second preset time.
In the embodiment of the invention, when the video network is accessed for the first time by the video network monitoring unified management platform, a first network access request broadcast packet sent by a first video network server and a second network access request broadcast packet sent by a second video network server are received, the priorities corresponding to the first video network server and the second video network server are determined according to the first network access request broadcast packet and the second network access request broadcast packet, when the priority of the first video network server is higher than that of the second video network server, the network connection with the first video network server is established, when the first video network server is abnormal, the network connection with the first video network server is disconnected, the second network access request broadcast packet is received, and the network connection with the second video network server is established according to the second network access request broadcast packet. The embodiment of the invention solves the problem that the Mserver (monitoring unified management platform) cannot work normally due to server failure in the video network of a single server.
Drawings
FIG. 1 is a schematic networking diagram of a video network of the present invention;
FIG. 2 is a schematic diagram of a hardware architecture of a node server according to the present invention;
fig. 3 is a schematic diagram of a hardware structure of an access switch of the present invention;
fig. 4 is a schematic diagram of a hardware structure of an ethernet protocol conversion gateway according to the present invention;
FIG. 5 is a flow chart of the steps of a method for switching servers of a video network according to the present invention;
fig. 6 is a flow chart of steps of a method for switching servers of a video network according to the present invention.
Detailed Description
In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in further detail below.
The video networking is an important milestone for network development, is a real-time network, can realize high-definition video real-time transmission, and pushes a plurality of internet applications to high-definition video, and high-definition faces each other.
The video networking adopts a real-time high-definition video exchange technology, can integrate required services such as dozens of services of video, voice, pictures, characters, communication, data and the like on a system platform on a network platform, such as high-definition video conference, video monitoring, intelligent monitoring analysis, emergency command, digital broadcast television, delayed television, network teaching, live broadcast, VOD on demand, television mail, Personal Video Recorder (PVR), intranet (self-office) channels, intelligent video broadcast control, information distribution and the like, and realizes high-definition quality video broadcast through a television or a computer.
To better understand the embodiments of the present invention, the following description refers to the internet of view:
some of the technologies applied in the video networking are as follows:
network Technology (Network Technology)
Network technology innovation in video networking has improved over traditional Ethernet (Ethernet) to face the potentially enormous video traffic on the network. Unlike pure network Packet Switching (Packet Switching) or network Circuit Switching (Circuit Switching), the Packet Switching is adopted by the technology of the video networking to meet the Streaming requirement. The video networking technology has the advantages of flexibility, simplicity and low price of packet switching, and simultaneously has the quality and safety guarantee of circuit switching, thereby realizing the seamless connection of the whole network switching type virtual circuit and the data format.
Switching Technology (Switching Technology)
The video network adopts two advantages of asynchronism and packet switching of the Ethernet, eliminates the defects of the Ethernet on the premise of full compatibility, has end-to-end seamless connection of the whole network, is directly communicated with a user terminal, and directly bears an IP data packet. The user data does not require any format conversion across the entire network. The video networking is a higher-level form of the Ethernet, is a real-time exchange platform, can realize the real-time transmission of the whole-network large-scale high-definition video which cannot be realized by the existing Internet, and pushes a plurality of network video applications to high-definition and unification.
Server Technology (Server Technology)
The server technology on the video networking and unified video platform is different from the traditional server, the streaming media transmission of the video networking and unified video platform is established on the basis of connection orientation, the data processing capacity of the video networking and unified video platform is independent of flow and communication time, and a single network layer can contain signaling and data transmission. For voice and video services, the complexity of video networking and unified video platform streaming media processing is much simpler than that of data processing, and the efficiency is greatly improved by more than one hundred times compared with that of a traditional server.
Storage Technology (Storage Technology)
The super-high speed storage technology of the unified video platform adopts the most advanced real-time operating system in order to adapt to the media content with super-large capacity and super-large flow, the program information in the server instruction is mapped to the specific hard disk space, the media content is not passed through the server any more, and is directly sent to the user terminal instantly, and the general waiting time of the user is less than 0.2 second. The optimized sector distribution greatly reduces the mechanical motion of the magnetic head track seeking of the hard disk, the resource consumption only accounts for 20% of that of the IP internet of the same grade, but concurrent flow which is 3 times larger than that of the traditional hard disk array is generated, and the comprehensive efficiency is improved by more than 10 times.
Network Security Technology (Network Security Technology)
The structural design of the video network completely eliminates the network security problem troubling the internet structurally by the modes of independent service permission control each time, complete isolation of equipment and user data and the like, generally does not need antivirus programs and firewalls, avoids the attack of hackers and viruses, and provides a structural carefree security network for users.
Service Innovation Technology (Service Innovation Technology)
The unified video platform integrates services and transmission, and is not only automatically connected once whether a single user, a private network user or a network aggregate. The user terminal, the set-top box or the PC are directly connected to the unified video platform to obtain various multimedia video services in various forms. The unified video platform adopts a menu type configuration table mode to replace the traditional complex application programming, can realize complex application by using very few codes, and realizes infinite new service innovation.
Networking of the video network is as follows:
the video network is a centralized control network structure, and the network can be a tree network, a star network, a ring network and the like, but on the basis of the centralized control node, the whole network is controlled by the centralized control node in the network.
As shown in fig. 1, the video network is divided into an access network and a metropolitan network.
The devices of the access network part can be mainly classified into 3 types: node server, access switch, terminal (including various set-top boxes, coding boards, memories, etc.). The node server is connected to an access switch, which may be connected to a plurality of terminals and may be connected to an ethernet network.
The node server is a node which plays a centralized control function in the access network and can control the access switch and the terminal. The node server can be directly connected with the access switch or directly connected with the terminal.
Similarly, devices of the metropolitan network portion may also be classified into 3 types: a metropolitan area server, a node switch and a node server. The metro server is connected to a node switch, which may be connected to a plurality of node servers.
The node server is a node server of the access network part, namely the node server belongs to both the access network part and the metropolitan area network part.
The metropolitan area server is a node which plays a centralized control function in the metropolitan area network and can control a node switch and a node server. The metropolitan area server can be directly connected with the node switch or directly connected with the node server.
Therefore, the whole video network is a network structure with layered centralized control, and the network controlled by the node server and the metropolitan area server can be in various structures such as tree, star and ring.
The access network part can form a unified video platform (the part in the dotted circle), and a plurality of unified video platforms can form a video network; each unified video platform may be interconnected via metropolitan area and wide area video networking.
Video networking device classification
1.1 devices in the video network of the embodiment of the present invention can be mainly classified into 3 types: servers, switches (including ethernet gateways), terminals (including various set-top boxes, code boards, memories, etc.). The video network as a whole can be divided into a metropolitan area network (or national network, global network, etc.) and an access network.
1.2 wherein the devices of the access network part can be mainly classified into 3 types: node servers, access switches (including ethernet gateways), terminals (including various set-top boxes, code boards, memories, etc.).
The specific hardware structure of each access network device is as follows:
a node server:
as shown in fig. 2, the system mainly includes a network interface module 201, a switching engine module 202, a CPU module 203, and a disk array module 204;
the network interface module 201, the CPU module 203, and the disk array module 204 all enter the switching engine module 202; the switching engine module 202 performs an operation of looking up the address table 205 on the incoming packet, thereby obtaining the direction information of the packet; and stores the packet in a queue of the corresponding packet buffer 206 based on the packet's steering information; if the queue of the packet buffer 206 is nearly full, it is discarded; the switching engine module 202 polls all packet buffer queues for forwarding if the following conditions are met: 1) the port send buffer is not full; 2) the queue packet counter is greater than zero. The disk array module 204 mainly implements control over the hard disk, including initialization, read-write, and other operations on the hard disk; the CPU module 203 is mainly responsible for protocol processing with an access switch and a terminal (not shown in the figure), configuring an address table 205 (including a downlink protocol packet address table, an uplink protocol packet address table, and a data packet address table), and configuring the disk array module 204.
The access switch:
as shown in fig. 3, the network interface module mainly includes a network interface module (a downlink network interface module 301 and an uplink network interface module 302), a switching engine module 303 and a CPU module 304;
wherein, the packet (uplink data) coming from the downlink network interface module 301 enters the packet detection module 305; the packet detection module 305 detects whether the Destination Address (DA), the Source Address (SA), the packet type, and the packet length of the packet meet the requirements, and if so, allocates a corresponding stream identifier (stream-id) and enters the switching engine module 303, otherwise, discards the stream identifier; the packet (downstream data) coming from the upstream network interface module 302 enters the switching engine module 303; the data packet coming from the CPU module 204 enters the switching engine module 303; the switching engine module 303 performs an operation of looking up the address table 306 on the incoming packet, thereby obtaining the direction information of the packet; if the packet entering the switching engine module 303 is from the downstream network interface to the upstream network interface, the packet is stored in the queue of the corresponding packet buffer 307 in association with the stream-id; if the queue of the packet buffer 307 is nearly full, it is discarded; if the packet entering the switching engine module 303 is not from the downlink network interface to the uplink network interface, the data packet is stored in the queue of the corresponding packet buffer 307 according to the guiding information of the packet; if the queue of the packet buffer 307 is nearly full, it is discarded.
The switching engine module 303 polls all packet buffer queues, which in this embodiment of the present invention is divided into two cases:
if the queue is from the downlink network interface to the uplink network interface, the following conditions are met for forwarding: 1) the port send buffer is not full; 2) the queued packet counter is greater than zero; 3) obtaining a token generated by a code rate control module;
if the queue is not from the downlink network interface to the uplink network interface, the following conditions are met for forwarding: 1) the port send buffer is not full; 2) the queue packet counter is greater than zero.
The rate control module 208 is configured by the CPU module 204, and generates tokens for packet buffer queues from all downstream network interfaces to upstream network interfaces at programmable intervals to control the rate of upstream forwarding.
The CPU module 304 is mainly responsible for protocol processing with the node server, configuration of the address table 306, and configuration of the code rate control module 308.
Ethernet protocol conversion gateway：
As shown in fig. 4, the apparatus mainly includes a network interface module (a downlink network interface module 401 and an uplink network interface module 402), a switching engine module 403, a CPU module 404, a packet detection module 405, a rate control module 408, an address table 406, a packet buffer 407, a MAC adding module 409, and a MAC deleting module 410.
Wherein, the data packet coming from the downlink network interface module 401 enters the packet detection module 405; the packet detection module 405 detects whether the ethernet MAC DA, the ethernet MAC SA, the ethernet length or frame type, the video network destination address DA, the video network source address SA, the video network packet type, and the packet length of the packet meet the requirements, and if so, allocates a corresponding stream identifier (stream-id); then, the MAC deletion module 410 subtracts MAC DA, MAC SA, length or frame type (2byte) and enters the corresponding receiving buffer, otherwise, discards it;
the downlink network interface module 401 detects the sending buffer of the port, and if there is a packet, obtains the ethernet MAC DA of the corresponding terminal according to the destination address DA of the packet, adds the ethernet MAC DA of the terminal, the MAC SA of the ethernet protocol gateway, and the ethernet length or frame type, and sends the packet.
The other modules in the ethernet protocol gateway function similarly to the access switch.
A terminal:
the system mainly comprises a network interface module, a service processing module and a CPU module; for example, the set-top box mainly comprises a network interface module, a video and audio coding and decoding engine module and a CPU module; the coding board mainly comprises a network interface module, a video and audio coding engine module and a CPU module; the memory mainly comprises a network interface module, a CPU module and a disk array module.
1.3 devices of the metropolitan area network part can be mainly classified into 2 types: node server, node exchanger, metropolitan area server. The node switch mainly comprises a network interface module, a switching engine module and a CPU module; the metropolitan area server mainly comprises a network interface module, a switching engine module and a CPU module.
2. Video networking packet definition
2.1 Access network packet definition
The data packet of the access network mainly comprises the following parts: destination Address (DA), Source Address (SA), reserved bytes, payload (pdu), CRC.
As shown in the following table, the data packet of the access network mainly includes the following parts:
| DA | SA | Reserved | Payload | CRC |
wherein:
the Destination Address (DA) is composed of 8 bytes (byte), the first byte represents the type of the data packet (such as various protocol packets, multicast data packets, unicast data packets, etc.), there are 256 possibilities at most, the second byte to the sixth byte are metropolitan area network addresses, and the seventh byte and the eighth byte are access network addresses;
the Source Address (SA) is also composed of 8 bytes (byte), defined as the same as the Destination Address (DA);
the reserved byte consists of 2 bytes;
the payload part has different lengths according to different types of datagrams, and is 64 bytes if the datagram is various types of protocol packets, and is 32+1024 or 1056 bytes if the datagram is a unicast packet, of course, the length is not limited to the above 2 types;
the CRC consists of 4 bytes and is calculated in accordance with the standard ethernet CRC algorithm.
2.2 metropolitan area network packet definition
The topology of a metropolitan area network is a graph and there may be 2, or even more than 2, connections between two devices, i.e., there may be more than 2 connections between a node switch and a node server, a node switch and a node switch, and a node switch and a node server. However, the metro network address of the metro network device is unique, and in order to accurately describe the connection relationship between the metro network devices, parameters are introduced in the embodiment of the present invention: a label to uniquely describe a metropolitan area network device.
In this specification, the definition of the Label is similar to that of the Label of MPLS (Multi-Protocol Label Switch), and assuming that there are two connections between the device a and the device B, there are 2 labels for the packet from the device a to the device B, and 2 labels for the packet from the device B to the device a. The label is classified into an incoming label and an outgoing label, and assuming that the label (incoming label) of the packet entering the device a is 0x0000, the label (outgoing label) of the packet leaving the device a may become 0x 0001. The network access process of the metro network is a network access process under centralized control, that is, address allocation and label allocation of the metro network are both dominated by the metro server, and the node switch and the node server are both passively executed, which is different from label allocation of MPLS, and label allocation of MPLS is a result of mutual negotiation between the switch and the server.
As shown in the following table, the data packet of the metro network mainly includes the following parts:
| DA | SA | Reserved | label (R) | Payload | CRC |
Namely Destination Address (DA), Source Address (SA), Reserved byte (Reserved), tag, payload (pdu), CRC. The format of the tag may be defined by reference to the following: the tag is 32 bits with the upper 16 bits reserved and only the lower 16 bits used, and its position is between the reserved bytes and payload of the packet.
Based on the characteristics of the video network, the monitoring recording scheme provided by the embodiment of the invention follows the protocol of the video network, and records the monitoring video acquired by the monitoring equipment in the video network so as to meet the relevant requirements of users.
Example one
Referring to fig. 5, a flowchart illustrating steps of a video networking server switching method provided in an embodiment of the present invention is shown, where the video networking server switching method may be applied to a video networking monitoring unified management platform, and specifically may include the following steps:
step 501: when the unified management platform for monitoring the video network is accessed to the video network for the first time, a first network access request broadcast packet sent by a first video network server and a second network access request broadcast packet sent by a second video network server are received.
In the embodiment of the present invention, the video network monitoring unified management platform (i.e. MServer) may be responsible for unified management of all accessed monitoring devices in the whole video network, and for docking services of other third party monitoring systems.
As the primary and standby video networking servers are deployed in the video networking, it can be understood that in the embodiment of the present invention, the first video networking server is the primary video networking server, and the second video networking server is the standby video networking server; and when the first video network server is the standby video network server, the second video network server is the main video network server, which is not limited in the embodiment of the present invention.
It is understood that the network access priority of the primary video network server is higher than that of the standby video network server, and in the subsequent steps of the embodiment of the present invention, the first video network server is used as the primary video network server, and specifically, the following steps will be described in detail.
After a first video network server and a second video network server (i.e., a master video network server) are deployed in a video network, the first video network server and the second video network server may simultaneously send a network access request broadcast packet, i.e., a first network access request broadcast packet and a second network access request broadcast packet, to the MServer.
When the MServer initially accesses the video network, the first network access request broadcast packet and the second network access request broadcast packet may be received, and step 502 is performed.
Step 502: and determining the priorities corresponding to the first video network server and the second video network server respectively according to the first network access request broadcast packet and the second network access request broadcast packet.
The network access request broadcast packet includes priorities corresponding to the various video network servers.
After the MServer receives the first network access request broadcast packet sent by the first video network server and the second network access request broadcast packet sent by the second video network server, the priority levels corresponding to the first video network server and the second video network server respectively can be determined according to the first network access request broadcast packet and the second network access request broadcast packet.
After determining the priorities corresponding to the first and second video network servers, respectively, step 503 is performed.
Step 503: establishing a network connection with the first video network server when the priority of the first video network server is higher than the priority of the second video network server.
When the priority of the first video network server is higher than that of the second video network server, the network connection between the MServer and the first video network server is established, namely, at the moment, the first video network server is a main video network server deployed in the video network, the second video network server is a standby video network server, the network connection between the MServer and the first video network server is established, and the first video network server provides network service for the MServer.
Of course, in a specific implementation, the second video network server may also be used as the primary video network server, and at this time, the priority of the second video network server is higher than that of the first video network server, so that the network connection between the MServer and the second video network server is established, and the second video network server provides the network service for the MServer.
It should be understood that the above-mentioned schemes are only detailed descriptions for better understanding the technical schemes of the embodiments of the present invention, and are not used as the only limitations of the embodiments of the present invention.
In the embodiment of the present invention, when the MServer executes the restart operation, the corresponding video network server may be searched for establishing the network connection according to the MAC address of the connected video network server that is saved when the MServer establishes the network connection last time, and specifically, the following preferred embodiments are described in detail.
In a preferred embodiment of the present invention, after the step 503, the method may further include:
step P1: and when the restart operation of the unified management platform for monitoring the video networking is monitored, acquiring the locally recorded MAC address of the first video networking server which is networked last time.
In the embodiment of the present invention, after the MServer establishes the network connection with the first internet-of-things server, the MAC address of the first internet-of-things server may be saved, and the time of the MAC, that is, the time of establishing the network with the first internet-of-things server, may be saved.
When the MServer is monitored to execute the restarting operation, the MAC address of the first video network server which is locally recorded by the MServer and is networked last time can be obtained.
It should be understood that, in the embodiment of the present invention, the last time the local record is obtained by performing a reboot operation after the MServer establishes the first internet-of-view server is the MAC address of the first internet-of-view server, that is, the internet-of-view server of the network connection closest to the current time.
In practical application, each pre-recorded MAC address can be obtained, the time for recording each MAC address can be obtained, and then the MAC address of the last networking video networking server can be determined according to the recorded MAC address and the time for recording each MAC address.
After acquiring the MAC address of the last networked first video network server, step P2 is performed.
Step P2: receiving a network access request broadcast packet; the network access request broadcast packet comprises target MAC addresses of all the video network servers.
The target MAC address refers to the MAC address of the video network server included in the network access request broadcast packet sent by each video network server received by the MServer.
After the MServer is restarted, the network access request broadcast packet sent by each video network server (not limited to two, but may be greater than two) deployed in advance may be received, so that the target MAC address of each video network server included in each network access request broadcast packet may be obtained, and step P3 is performed.
Step P3: and matching the MAC address with each target MAC address one by one.
After each destination MAC address is obtained, each destination MAC address may be matched one-to-one with the MAC address (i.e., the MAC address of the last networked first view network server).
When the matching is successful, step P4 is performed, otherwise step P5 is performed.
Step P4: and when the matching is successful, establishing network connection with the first video network server.
When the matching is successful, the video network server which sends each network access request broadcast packet comprises the first video network server, the first video network server can be preferentially selected to establish network connection, namely when the matching is successful, the network connection between the MServer and the first video network server is established, and the first video network server provides network service for the MServer.
Step P5: and when the matching fails, acquiring the priority of each video network server, selecting a target video network server with the highest priority from each video network server, and establishing network connection with the target video network server.
When the matching fails, the video network servers sending the network access request broadcast packets do not comprise the first video network server, and then a target video network server with the highest priority can be selected from the video network servers sending the network access request broadcast packets, a network with the target video network server is established, and the target video network server provides network service for the MServer.
Of course, when the MServer performs the immediate restart operation, it may be avoided that the MServer selects another video network server to establish the network connection, and specifically, the following detailed description of the preferred embodiment is provided.
In a preferred embodiment of the present invention, after the step 503, the method may further include:
step M1: and judging whether a third network access request broadcast packet sent by the first video network server is received or not under the condition that the restart operation of the video network monitoring unified management platform is monitored and the first video network server and the second video network server are normal.
In the embodiment of the invention, when the immediate restart operation executed by the MServer is monitored and the first video network server and the second video network server are both in the normal working state, whether the third network access request broadcast packet sent by the first video network server is received or not can be judged.
In the case where the third network access request broadcast packet is not received, step M2 is performed.
Step M2: and under the condition that the third network access request broadcast packet is not received, judging whether the third network access request broadcast packet is received or not after waiting for a set time.
If the MServer does not receive the third network access request broadcast packet, the MServer may wait for a set time, where the set time may be a network access request broadcast packet waiting time preset by the MServer, and may be 1min, 5min, and the like.
After waiting for the set time, the MServer may be monitored again whether the MServer receives the third network entry request broadcast packet.
After waiting for the set time, if the MServer receives the third network access request broadcast packet, step M3 is executed, otherwise, step M4 is executed.
Step M3: establishing a network connection with the first video network server.
After waiting for the set time, under the condition that the MServer receives a third network access request broadcast packet sent by the first video network server, the MServer establishes network connection with the first video network server so that the MServer provides network service for the first video network server.
Step M4: and receiving the second network access request broadcast packet, and establishing network connection with the second video network server.
After waiting for the set time, under the condition that the MServer does not receive the third network access request broadcast packet sent by the first video network server, receiving a second network access request broadcast packet sent by a second video network server, and establishing network connection with the second video network server according to the second network access request broadcast packet so as to provide network service for the MServer by the second video network server.
In the embodiment of the invention, when the MServer executes the immediate restart operation, the MServer can be prevented from selecting another video network server to establish network connection by judging whether the network access request broadcast packet of the video network server of which the network is established in advance is received.
After the first video network server has a higher priority than the second video network server and a network connection is established between the MServer and the first video network server, step 504 is performed.
Step 504: and when the first video network server is abnormal, disconnecting the network connection with the first video network server.
In the process that the first video network server provides network service for the MServer, the first video network server may be abnormal, and when the first video network server is abnormal, the MServer may disconnect the network connection with the first video network server.
The following preferred embodiment will be described in detail with respect to how MServer determines that an anomaly has occurred with the first Vision networking Server.
In a preferred embodiment of the present invention, the step 504 may include:
substep S1: monitoring whether a first heartbeat packet sent by the first video network server is received within a first preset time.
In this embodiment of the present invention, the first heartbeat packet refers to a heartbeat packet sent by the first internet of things server to the MServer.
The first preset time may be a time preset by the MServer when the first heartbeat packet is not received, such as 1min, 3min, and so on.
In practical applications, a person skilled in the art can set the specific value of the first preset time according to actual needs, and the embodiment of the present invention does not limit the specific value of the first preset time.
After the MServer establishes network connection with the first video network server, namely the first video network server provides network service for the MServer, the first video network server can continuously send a first heartbeat packet to the MServer.
The MServer can monitor the information that the first heartbeat packet is not received within the first preset time in real time.
In case MServer detects that the first heartbeat packet is not received within the first preset time, substep S2 is performed.
Substep S2: and under the condition that the first heartbeat packet is not received within the first preset time, disconnecting the network connection with the first video network server.
When the MServer does not monitor the received first heartbeat packet within the first preset time, the MServer indicates that the first video network server does not provide network service for the MServer any more, at the moment, the first video network server is possibly abnormal, and the MServer can actively disconnect the network connection with the first video network server.
After MServer disconnects the network connection with the first video network server, step 505 is performed.
Step 505: and receiving the second network access request broadcast packet, and establishing network connection with the second video network server according to the second network access request broadcast packet.
After the MServer disconnects the network connection with the first video network server, the network access request sent by other video network servers can be received, it can be understood that the first video network server and the second video network server are deployed in advance in the video network, when the first video network server is abnormal, the network access request is no longer sent to the MServer, at this time, the MServer can receive a second network access request broadcast packet sent from the second video network server, and after receiving the second network access request broadcast packet, the MServer can establish the network connection with the second video network server according to the second network access request broadcast packet, that is, the second video network server provides the network service for the MServer.
After the MServer establishes network connection with the second video network server and the first video network server recovers to be normal, at the moment, if the second video network server can still work normally, the second video network server continues to provide network service for the MServer, and when the second video network server is abnormal, the network connection with the first video network server is established so that the first video network server provides network service for the MServer.
Specifically, the following preferred embodiments are described in detail.
In a preferred embodiment of the present invention, after the step 505, the method may further include:
step N1: and when the first video network server recovers the working state, judging whether a second heartbeat packet sent by the second video network server is received.
In this embodiment of the present invention, the second heartbeat packet refers to a heartbeat packet sent by the second internet of things server to the MServer.
After the MServer establishes network connection with the second video network server, the second video network server can continuously send heartbeat packets to the MServer, and under the condition that the MServer does not receive the second heartbeat packets sent by the second video network server, the second video network server can be judged to be abnormal.
In the event that a second heartbeat packet is received by MServer, step N2 is performed.
And in the case that the second heartbeat packet is not received within the second preset time, the step N3 is executed.
Step N2: and under the condition that the second heartbeat packet is received, continuously establishing network connection with the second video network server.
Under the condition that the MServer can receive a second heartbeat packet sent by the second video network server, the second video network server still provides network service for the MServer normally, and then network connection with the second video network server can be continuously established.
Step N3: and under the condition that the second heartbeat packet is not received within second preset time, receiving a fourth network access request broadcast packet sent by the first video network server, and establishing network connection with the first video network server.
The second preset time may be a time pre-established by the MServer, and the second preset time may be 3min, 50s, and the like, and a specific value of the second preset time may be determined according to an actual situation, which is not limited in the embodiment of the present invention.
And under the condition that the MServer does not receive the second heartbeat packet within the second preset time, the MServer indicates that the second video network server is abnormal and does not provide network service for the MServer any more, the network connection with the second video network server can be disconnected, a fourth network access request broadcast packet sent by the first video network server is received, and the network connection with the first video network server is established according to the fourth network access request broadcast packet, so that the first video network server provides network service for the MServer.
The switching method of the video network server provided by the embodiment of the invention has the advantages that when the video network monitoring unified management platform is firstly accessed into the video network, receiving a first network access request broadcast packet sent by a first video network server and a second network access request broadcast packet sent by a second video network server, determining the priorities corresponding to the first video network server and the second video network server respectively according to the first network access request broadcast packet and the second network access request broadcast packet, establishing a network connection with the first video network server when the priority of the first video network server is higher than the priority of the second video network server, when the first video network server is abnormal, the network connection with the first video network server is disconnected, and receiving a second network access request broadcast packet, and establishing network connection with a second video network server according to the second network access request broadcast packet. The embodiment of the invention solves the problem that the Mserver (monitoring unified management platform) cannot work normally due to server failure in the video network of a single server.
Example two
Referring to fig. 6, a schematic structural diagram of a switching device of a video networking server according to an embodiment of the present invention is shown, where the switching device of the video networking server may be applied to a video networking monitoring unified management platform, and specifically may include:
a first network access request packet receiving module 610, configured to receive a first network access request broadcast packet sent by a first video network server and a second network access request broadcast packet sent by a second video network server when the video network monitoring unified management platform initially accesses the video network; a server priority determining module 620, configured to determine priorities corresponding to the first video network server and the second video network server, respectively, according to the first network access request broadcast packet and the second network access request broadcast packet; a first network connection establishing module 630, configured to establish a network connection with the first internet-of-view server when the priority of the first internet-of-view server is higher than the priority of the second internet-of-view server; a first network disconnection module 640, configured to disconnect a network connection with the first internet-of-view server when the first internet-of-view server is abnormal; a second network connection establishing module 650, configured to receive the second network access request broadcast packet, and establish a network connection with the second video network server according to the second network access request broadcast packet.
Preferably, the first network connection disconnection module 640 includes: the first heartbeat packet monitoring submodule is used for monitoring whether a first heartbeat packet sent by the first video network server is received within first preset time; and the first network connection disconnection submodule is used for disconnecting the network connection with the first video network server under the condition that the first heartbeat packet is not received within the first preset time.
Preferably, the method further comprises the following steps: the MAC address acquisition module is used for acquiring the locally recorded MAC address of the first video network server networked last time when the restart operation of the video network monitoring unified management platform is monitored; the second network access request packet receiving module is used for receiving a network access request broadcast packet; the network access request broadcast packet comprises target MAC addresses of all video network servers; the MAC address matching module is used for matching the MAC address with each target MAC address one by one; the third network connection establishing module is used for establishing network connection with the first video network server when the matching is successful; and the fourth network connection establishing module is used for acquiring the priority of each video network server when the matching fails, selecting a target video network server with the highest priority from each video network server, and establishing network connection with the target video network server.
Preferably, the method further comprises the following steps: the first network access request packet judging module is used for judging whether a third network access request broadcast packet sent by the first video network server is received or not under the condition that the restart operation of the video network monitoring unified management platform is monitored and the first video network server and the second video network server are normal; a second network access request packet judgment module, configured to judge whether the third network access request broadcast packet is received or not after waiting for a set time under the condition that the third network access request broadcast packet is not received; a fifth network connection establishing module, configured to establish a network connection with the first video network server when the third network access request broadcast packet is received; and the sixth network connection establishing module is used for receiving the second network access request broadcast packet and establishing network connection with the second video network server under the condition that the third network access request broadcast packet is not received.
Preferably, the method further comprises the following steps: the second heartbeat packet receiving module is used for judging whether a second heartbeat packet sent by the second video network server is received or not when the first video network server restores the working state; a seventh network connection establishing module, configured to continuously establish a network connection with the second video network server when the second heartbeat packet is received; and the eighth network connection establishing module is used for receiving a fourth network access request broadcast packet sent by the first video network server and establishing network connection with the first video network server under the condition that the second heartbeat packet is not received within second preset time.
The switching device of the video network server provided by the embodiment of the invention has the advantages that when the video network monitoring unified management platform is firstly accessed into the video network, receiving a first network access request broadcast packet sent by a first video network server and a second network access request broadcast packet sent by a second video network server, determining the priorities corresponding to the first video network server and the second video network server respectively according to the first network access request broadcast packet and the second network access request broadcast packet, establishing a network connection with the first video network server when the priority of the first video network server is higher than the priority of the second video network server, when the first video network server is abnormal, the network connection with the first video network server is disconnected, and receiving a second network access request broadcast packet, and establishing network connection with a second video network server according to the second network access request broadcast packet. The embodiment of the invention solves the problem that the Mserver (monitoring unified management platform) cannot work normally due to server failure in the video network of a single server.
For the device embodiment, since it is basically similar to the method embodiment, the description is simple, and for the relevant points, refer to the partial description of the method embodiment.
The embodiments in the present specification are described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other.
As will be appreciated by one skilled in the art, embodiments of the present invention may be provided as a method, apparatus, or computer program product. Accordingly, embodiments of the present invention may take the form of an entirely hardware embodiment, an entirely software embodiment or an embodiment combining software and hardware aspects. Furthermore, embodiments of the present invention may take the form of a computer program product embodied on one or more computer-usable storage media (including, but not limited to, disk storage, CD-ROM, optical storage, and the like) having computer-usable program code embodied therein.
Embodiments of the present invention are described with reference to flowchart illustrations and/or block diagrams of methods, terminal devices (systems), and computer program products according to embodiments of the invention. It will be understood that each flow and/or block of the flow diagrams and/or block diagrams, and combinations of flows and/or blocks in the flow diagrams and/or block diagrams, can be implemented by computer program instructions. These computer program instructions may be provided to a processor of a general purpose computer, special purpose computer, embedded processor, or other programmable data processing terminal to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing terminal, create means for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be stored in a computer-readable memory that can direct a computer or other programmable data processing terminal to function in a particular manner, such that the instructions stored in the computer-readable memory produce an article of manufacture including instruction means which implement the function specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be loaded onto a computer or other programmable data processing terminal to cause a series of operational steps to be performed on the computer or other programmable terminal to produce a computer implemented process such that the instructions which execute on the computer or other programmable terminal provide steps for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
While preferred embodiments of the present invention have been described, additional variations and modifications of these embodiments may occur to those skilled in the art once they learn of the basic inventive concepts. Therefore, it is intended that the appended claims be interpreted as including preferred embodiments and all such alterations and modifications as fall within the scope of the embodiments of the invention.
Finally, it should also be noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or terminal that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or terminal. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other like elements in a process, method, article, or terminal that comprises the element.
The foregoing describes in detail a video networking server switching method and a video networking server switching device provided by the present invention, and specific examples are applied herein to explain the principles and embodiments of the present invention, and the description of the foregoing embodiments is only used to help understand the method and the core ideas of the present invention; meanwhile, for a person skilled in the art, according to the idea of the present invention, there may be variations in the specific embodiments and the application scope, and in summary, the content of the present specification should not be construed as a limitation to the present invention.
Claims (8)
1. A switching method of a video network server is applied to a video network monitoring unified management platform and is characterized by comprising the following steps:
when the video network monitoring unified management platform is accessed to the video network for the first time, receiving a first network access request broadcast packet sent by a first video network server and a second network access request broadcast packet sent by a second video network server;
determining priorities corresponding to the first video network server and the second video network server respectively according to the first network access request broadcast packet and the second network access request broadcast packet;
establishing a network connection with the first video network server when the priority of the first video network server is higher than the priority of the second video network server;
when the first video network server is abnormal, disconnecting the network connection with the first video network server;
receiving the second network access request broadcast packet, and establishing network connection with the second video network server according to the second network access request broadcast packet;
wherein after the step of establishing a network connection with the first video network server, further comprising:
when the restart operation of the video networking monitoring unified management platform is monitored, the MAC address of the first video networking server which is locally recorded and is networked last time is obtained;
receiving a network access request broadcast packet; the network access request broadcast packet comprises target MAC addresses of all video network servers;
matching the MAC address with each target MAC address one by one;
when the matching is successful, establishing network connection with the first video network server;
and when the matching fails, acquiring the priority of each video network server, selecting a target video network server with the highest priority from each video network server, and establishing network connection with the target video network server.
2. The method according to claim 1, wherein the step of disconnecting the network connection with the first video network server when the first video network server is abnormal comprises:
monitoring whether a first heartbeat packet sent by the first video network server is received within a first preset time;
and under the condition that the first heartbeat packet is not received within the first preset time, disconnecting the network connection with the first video network server.
3. The method of claim 1, further comprising, after the step of establishing a network connection with the first video network server:
under the condition that the restart operation of the video networking monitoring unified management platform is monitored and the first video networking server and the second video networking server are normal, judging whether a third network access request broadcast packet sent by the first video networking server is received or not;
under the condition that the third network access request broadcast packet is not received, after waiting for a set time, judging whether the third network access request broadcast packet is received or not;
if so, establishing network connection with the first video network server;
and if not, receiving the second network access request broadcast packet, and establishing network connection with the second video network server.
4. The method according to claim 1, further comprising, after the step of receiving the second network access request broadcast packet and establishing a network connection with the second video network server according to the second network access request broadcast packet:
when the first video network server recovers the working state, judging whether a second heartbeat packet sent by the second video network server is received or not;
continuously establishing a network connection with the second video network server under the condition that the second heartbeat packet is received;
and under the condition that the second heartbeat packet is not received within second preset time, receiving a fourth network access request broadcast packet sent by the first video network server, and establishing network connection with the first video network server.
5. The utility model provides a video networking server auto-change over device, is applied to video networking control unified management platform which characterized in that includes:
the first network access request packet receiving module is used for receiving a first network access request broadcast packet sent by a first video network server and a second network access request broadcast packet sent by a second video network server when the video network monitoring unified management platform is accessed to the video network for the first time;
the server priority determining module is used for determining the priorities corresponding to the first video network server and the second video network server respectively according to the first network access request broadcast packet and the second network access request broadcast packet;
the first network connection establishing module is used for establishing network connection with the first video network server when the priority of the first video network server is higher than the priority of the second video network server;
the first network connection disconnection module is used for disconnecting the network connection with the first video network server when the first video network server is abnormal;
the second network connection establishing module is used for receiving the second network access request broadcast packet and establishing network connection with the second video network server according to the second network access request broadcast packet;
the device further comprises:
the MAC address acquisition module is used for acquiring the locally recorded MAC address of the first video network server networked last time when the restart operation of the video network monitoring unified management platform is monitored;
the second network access request packet receiving module is used for receiving a network access request broadcast packet; the network access request broadcast packet comprises target MAC addresses of all video network servers;
the MAC address matching module is used for matching the MAC address with each target MAC address one by one;
the third network connection establishing module is used for establishing network connection with the first video network server when the matching is successful;
and the fourth network connection establishing module is used for acquiring the priority of each video network server when the matching fails, selecting a target video network server with the highest priority from each video network server, and establishing network connection with the target video network server.
6. The apparatus of claim 5, wherein the first network disconnection module comprises:
the first heartbeat packet monitoring submodule is used for monitoring whether a first heartbeat packet sent by the first video network server is received within first preset time;
and the first network connection disconnection submodule is used for disconnecting the network connection with the first video network server under the condition that the first heartbeat packet is not received within the first preset time.
7. The apparatus of claim 5, further comprising:
the first network access request packet judging module is used for judging whether a third network access request broadcast packet sent by the first video network server is received or not under the condition that the restart operation of the video network monitoring unified management platform is monitored and the first video network server and the second video network server are normal;
a second network access request packet judgment module, configured to judge whether the third network access request broadcast packet is received or not after waiting for a set time under the condition that the third network access request broadcast packet is not received;
a fifth network connection establishing module, configured to establish a network connection with the first video network server when the third network access request broadcast packet is received;
and the sixth network connection establishing module is used for receiving the second network access request broadcast packet and establishing network connection with the second video network server under the condition that the third network access request broadcast packet is not received.
8. The apparatus of claim 5, further comprising:
the second heartbeat packet receiving module is used for judging whether a second heartbeat packet sent by the second video network server is received or not when the first video network server restores the working state;
a seventh network connection establishing module, configured to continuously establish a network connection with the second video network server when the second heartbeat packet is received;
and the eighth network connection establishing module is used for receiving a fourth network access request broadcast packet sent by the first video network server and establishing network connection with the first video network server under the condition that the second heartbeat packet is not received within second preset time.
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| CN111884825A (en) * | 2020-06-04 | 2020-11-03 | 视联动力信息技术股份有限公司 | Fault processing method and device, terminal equipment and storage medium |
| CN111787262B (en) * | 2020-07-10 | 2022-09-23 | 上海茂声智能科技有限公司 | Method, system, equipment and storage medium for local area network audio and video call |
| CN113489601B (en) * | 2021-06-11 | 2024-05-14 | 海南视联通信技术有限公司 | Anti-destruction method and device based on autonomous cloud network architecture of video networking |
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