CN109862439B - Data processing method and device - Google Patents
Data processing method and device Download PDFInfo
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- CN109862439B CN109862439B CN201910087659.8A CN201910087659A CN109862439B CN 109862439 B CN109862439 B CN 109862439B CN 201910087659 A CN201910087659 A CN 201910087659A CN 109862439 B CN109862439 B CN 109862439B
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Abstract
The invention provides a data processing method and a data processing device, which are applied to a video network. The method comprises the following steps: when receiving a video networking message to be transmitted through a video networking port, video networking gateway equipment judges the type of the video networking message; when the type of the video networking message is a video networking message carrying an IP data message, carrying out speed limit transmission on the video networking message according to a first preset speed limit value; and when the type of the video networking message is a video networking protocol message or a video networking service message, transmitting the video networking message. In the embodiment of the invention, the video network messages to be transmitted are classified, the transmission of the original service of the video network can be carried out without speed limit transmission, and the transmission of the IP data messages is carried out with speed limit transmission, so that the IP network service is prevented from occupying more video network bandwidth, the quality of the original service of the video network is ensured, and the user experience is improved.
Description
Technical Field
The present invention relates to the field of video networking technologies, and in particular, to a data processing method and a data processing apparatus.
Background
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.
In the video network, a video network-based service, such as a video conference, a video telephone, etc., is generally performed. If the service in other networks, such as the service based on the IP (Internet Protocol, Protocol for interconnection between networks) network, is to be performed through the video network, because the IP data traffic is large, the access service is wide in variety, and a large amount of services based on the IP network will occupy more video network bandwidth, the quality of the original service based on the video network will be affected, and the user experience will be reduced.
Disclosure of Invention
In view of the above problems, embodiments of the present invention are proposed to provide a data processing method and a corresponding data processing apparatus 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 data processing method, where the method is applied in a video network, where the video network includes a video network gateway device, and the video network gateway device includes a video network port for connecting a video network server, and the method includes:
the video network gateway equipment judges the type of a video network message to be transmitted when receiving the video network message through the video network port;
when the type of the video networking message is a video networking message carrying an IP data message, the video networking gateway equipment performs speed limit transmission on the video networking message according to a first preset speed limit value;
and the video networking gateway equipment transmits the video networking message when the type of the video networking message is a video networking protocol message or a video networking service message.
Optionally, the step of determining the type of the video networking message includes: the video network gateway equipment extracts a field of a representation type from a video network packet header of the video network message according to a preset video network packet header structure; and the video network gateway equipment acquires the type corresponding to the extracted field according to the preset corresponding relation between the field and the type, and the type is used as the type of the video network message.
Optionally, the step of performing rate-limiting transmission on the video network packet according to a first preset rate-limiting value includes: the video networking gateway equipment judges whether the residual tokens in a preset token bucket can bear the video networking message or not; the token bucket is stored with tokens according to the speed corresponding to the first preset speed limit value; when the judgment result is yes, the video networking gateway equipment transmits the video networking message; and if not, discarding the video networking message or putting the video networking message into a preset cache queue for caching.
Optionally, the video networking gateway device further includes a dedicated terminal port for connecting a video networking terminal; the method further comprises the following steps: and when the video networking gateway equipment receives the video networking service message to be transmitted through the special terminal port, the video networking service message is subjected to speed limit transmission according to a second preset speed limit value.
Optionally, the video networking gateway device further includes an access circuit AC port for connecting an IP network device, where the AC port includes a physical interface and a VLAN port; the method further comprises the following steps: when the video network gateway equipment receives an IP data message to be transmitted through the physical interface, the video network gateway equipment performs speed-limiting transmission on the IP data message according to a third preset speed-limiting value; when the video network gateway equipment receives an IP data message to be transmitted through the VLAN port, if the VLAN port has a corresponding preset speed limit value, the video network gateway equipment carries out speed limit transmission on the IP data message according to the preset speed limit value corresponding to the VLAN port.
On the other hand, the embodiment of the invention also discloses a data processing device, the device is applied to the video network, the video network comprises a video network gateway device, the video network gateway device comprises a video network port for connecting a video network server, and the video network gateway device comprises:
the determining module is used for judging the type of the video networking message when the video networking message to be transmitted is received through the video networking port;
the first transmission module is used for carrying out speed-limiting transmission on the video networking message according to a first preset speed-limiting value when the type of the video networking message is the video networking message carrying the IP data message;
and the second transmission module is used for transmitting the video networking message when the type of the video networking message is a video networking protocol message or a video networking service message.
Optionally, the determining module includes: the extraction submodule is used for extracting a field of a representation type from a video network packet header of the video network message according to a preset video network packet header structure; and the obtaining submodule is used for obtaining the type corresponding to the extracted field by the equipment according to the preset corresponding relation between the field and the type, and the type is used as the type of the video network message.
Optionally, the first transmission module comprises: the judging submodule is used for judging whether the rest tokens in a preset token bucket can bear the video networking message; the token bucket is stored with tokens according to the speed corresponding to the first preset speed limit value; the first processing submodule is used for transmitting the video networking message when the judgment result is yes; and the second processing submodule is used for discarding the video networking message or putting the video networking message into a preset cache queue for caching when the judgment result is negative.
Optionally, the video networking gateway device further includes a dedicated terminal port for connecting a video networking terminal; the video networking gateway device further comprises: and the third transmission module is used for carrying out speed-limiting transmission on the video networking service message according to a second preset speed-limiting value when the video networking service message to be transmitted is received through the special terminal port.
Optionally, the video networking gateway device further includes an access circuit AC port for connecting an IP network device, where the AC port includes a physical interface and a VLAN port; the video networking gateway device further comprises: the fourth transmission module is used for carrying out speed limit transmission on the IP data message according to a third preset speed limit value when the IP data message to be transmitted is received through the physical interface; and the fifth transmission module is used for carrying out speed-limiting transmission on the IP data message according to the preset speed-limiting value corresponding to the VLAN port if the VLAN port has the corresponding preset speed-limiting value when the IP data message to be transmitted is received through the VLAN port.
In the embodiment of the invention, when the video networking gateway equipment receives a video networking message to be transmitted through a video networking port, the type of the video networking message is judged; when the type of the video network message is a video network message carrying an IP data message, carrying out speed limit transmission on the video network message according to a first preset speed limit value; and when the type of the video networking message is a video networking protocol message or a video networking service message, transmitting the video networking message. Therefore, in the embodiment of the invention, the video network messages to be transmitted are classified, the transmission of the original service of the video network can be carried out without speed limit transmission, and the transmission of the IP data messages is carried out with speed limit transmission, so that the IP network service is prevented from occupying more video network bandwidth, the quality of the original service of the video network is ensured, and the user experience is improved.
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 schematic diagram of a device connection of an embodiment of the present invention;
FIG. 6 is a flow chart of the steps of a data processing method of an embodiment of the present invention;
FIG. 7 is a diagram illustrating a message transmission according to an embodiment of the present invention;
FIG. 8 is a schematic diagram of a rate limited transmission according to an embodiment of the present invention;
fig. 9 is a block diagram of a data processing apparatus according to an embodiment of 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.
1. 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 video networking destination address DA of the packet, adds the ethernet MAC DA of the terminal, the MAC SA of the ethernet coordination 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 data packets, and is 64 bytes if the data packet is a variety of protocol packets, and is 32+1024 or 1056 bytes if the data packet is a unicast data 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 data processing scheme provided by the embodiment of the invention follows the protocol of the video network, and can ensure that the original service of the video network is not influenced by the service of the IP network.
The data processing method of the embodiment of the invention can be applied to the video network. In video networking, video networking services, such as video telephone services, video conference services, etc., are generally performed. With the continuous expansion of the video networking function, some IP network services can be carried through the video networking.
An internet of view gateway device, an internet of view server and an internet of view terminal may be included in the internet of view. The video networking gateway device may be a video networking Modem (Modem) or the like. The video network terminal is a service landing device on the video network, an actual participant or a server of the video network service, and the video network terminal can be various conference set-top boxes, video telephone set-top boxes, operation trial set-top boxes and the like. The video network server may be the node server described above. And the video networking terminal and the video networking gateway equipment are registered in the video networking server so as to be accessed to the video networking for video networking service. After the terminal of the video network registers in the video network server, the video network server may allocate information such as a Media Access Control (MAC) address and a video network number to the terminal of the video network. The video networking gateway device can comprise a plurality of virtual terminals, each virtual terminal corresponds to one video networking tunnel, and after the video networking gateway device is registered in the video networking server, the video networking server can allocate information such as a video networking MAC address and a video networking number to each virtual terminal in the video networking gateway device.
The video networking gateway device may include an upper video networking gateway device (such as an upper video networking Modem) and a lower video networking gateway device (such as a lower video networking Modem). After registration, dialing is carried out between the superior video networking gateway equipment and the subordinate video networking gateway equipment so as to establish connection between the superior video networking gateway equipment and the subordinate video networking gateway equipment, and the connection relation between the superior video networking gateway equipment and the subordinate video networking gateway equipment can be stored in the video networking server. The corresponding connection relation between the virtual terminal (namely, the video networking tunnel) in the upper-level video networking gateway device and the virtual terminal (namely, the video networking tunnel) in the lower-level video networking gateway device can be stored in the video networking server. In the implementation, the connection relationship between the superior video networking gateway device and the subordinate video networking gateway device can be embodied by storing the corresponding connection relationship between the video networking MAC address of the virtual terminal in the superior video networking gateway device and the video networking MAC address of the virtual terminal in the subordinate video networking gateway device.
An IP network device may be included in the IP network. The IP network device may include a first IP network device (e.g., an IP network server) and a second IP network device (e.g., an IP network client), such as a network disk server and a network disk client. The network disk server is a video network data storage network disk system. The network disk client may be client software installed on a PC (personal computer), a mobile phone, a tablet computer, or the like, and is used for logging in a network disk server, reading and writing network disk data, and the like.
A video network port for connecting a video network server, a dedicated terminal port for connecting a video network terminal, and an AC (access circuit) port for connecting an IP network device may be included in the video network gateway device.
Referring to fig. 5, a schematic diagram of a device connection of an embodiment of the present invention is shown. As can be seen from fig. 5, the lower level video networking gateway device is connected to the video networking terminal through the dedicated terminal port, connected to the IP network client through the AC port, and connected to the video networking server through the video networking port. The superior video network gateway equipment is connected with a video network server through a video network port, is connected with a video network terminal through a special terminal port, is connected with an IP network server through an AC port, and the IP network server is accessed into an IP network.
Referring to fig. 6, a flow chart of steps of a data processing method of an embodiment of the present invention is shown.
The data processing method of the embodiment of the invention can comprise the following steps:
The video network gateway device can be connected with a video network terminal through a special terminal port and connected with a video network server through a video network port. When the video network terminal goes up, the video network terminal packages the related video network service data (such as video data, audio data and the like) into an uplink video network service message, and transmits the uplink video network service message to the video network gateway device through a special terminal port of the video network gateway device, and then the video network gateway device transmits the uplink video network service message to the video network server through the video network port. And during downlink, the video network server packages the related video network service data into a downlink video network service message, transmits the downlink video network service message to the video network gateway equipment through the video network port, and transmits the downlink video network service message to the video network terminal through the special terminal port by the video network gateway equipment.
The video networking protocol message can be transmitted between the video networking gateway equipment and the video networking server through the video networking port. During uplink, the CPU of the video network gateway device encapsulates relevant protocol information (such as a request command, a response command, etc.) into an uplink video network protocol packet, and transmits the uplink video network protocol packet to the video network server through the video network port. And during downlink, the video network server encapsulates the related protocol information into a downlink video network protocol message and transmits the downlink video network protocol message to a CPU of the video network gateway equipment through the video network port.
The video network gateway device can be connected with the IP network device through an AC port and is connected with a video network server through a video network port. When the IP network equipment goes up, the IP network equipment packages related IP data into an uplink IP data message, the uplink IP data message is transmitted to the video network gateway equipment through a special terminal port of the video network gateway equipment, the video network gateway equipment packages the uplink IP data message into an uplink video network message bearing the uplink IP data message based on a video network protocol, and the video network gateway equipment transmits the uplink video network message bearing the IP data message to a video network server through a video network port. During downlink, the video network server transmits a downlink video network message bearing the downlink IP data message to the video network gateway device through the video network port, the video network gateway device analyzes the downlink video network message bearing the downlink IP data message to obtain the downlink IP data message, and then the downlink IP data message is transmitted to the IP network device through the AC port.
The IP data message may include an IP packet header and a data segment, and the video network message carrying the IP data message refers to a message transmitted on a video network link and is composed of the video network packet header and the data segment carrying the message. The video network packet header refers to the header of the video network message and contains information such as a video network MAC address and a video network protocol. The data section of the bearer message is a data area for bearing an IP data message in the video networking message.
Referring to fig. 7, a schematic diagram of message transmission according to an embodiment of the present invention is shown. As can be seen from fig. 7, the messages transmitted through the dedicated terminal port of the video networking gateway device include video networking service messages (denoted by "→" in fig. 7), and specifically include uplink video networking service messages and downlink video networking service messages. Messages transmitted over the AC port of the video networking gateway device include IP data messages (used in FIG. 7 for
Representing IP data packets), specifically including uplink IP data packets and downlink IP data packets. The messages transmitted at the video networking port of the video networking gateway device include: the video networking service messages specifically comprise uplink video networking service messages and downlink video networking service messages; video networking protocol messages (used in FIG. 7)
Representing a video networking protocol message), specifically including an uplink video networking protocol message and a downlink video networking protocol message; video networking messages carrying IP data messages (used in FIG. 7)
Video networking messages representing IP data bearers) including, in particular, upstream video networking messages carrying upstream IP data messages and downstream video networking messages carrying downstream IP data messages.
And when the video networking gateway equipment receives the video networking message to be transmitted through the video networking port, judging the type of the video networking message to be transmitted.
Step 601 may include: the video network gateway equipment extracts a field of a representation type from a video network packet header of a video network message to be transmitted according to a preset video network packet header structure; and acquiring the type corresponding to the extracted field according to the corresponding relation between the preset field and the type, and taking the type as the type of the video network message to be transmitted.
The following examples are given. For example, a field with field number 0 may be preset as a field indicating a transmission direction, a field with field number 1 as a field indicating a type, and so on. The video networking message in the embodiment of the invention can comprise three types of video networking protocol messages, video networking service messages and video networking messages bearing IP data messages. Therefore, the corresponding relationship between the field representing the type and the type can be preset, for example, when the field is set to be 0x0001, the corresponding type is a video networking protocol message, when the field is set to be 0x0002, the corresponding type is a video networking service message, when the field is set to be 0x0003, the corresponding type is a video networking message carrying an IP data message, and the like. Therefore, when the video networking gateway device receives the video networking message to be transmitted through the video networking port, the field with the field number of 1 is extracted from the video networking message, for example, the extracted field is 0x0003, and the video networking message with the type of carrying the IP data message corresponding to 0x0003 is obtained according to the correspondence between the field and the type, so that the type of the video networking message to be transmitted can be determined to be the video networking message with the IP data message.
When the type of the video networking message to be transmitted is the video networking message carrying the IP data message, in order to avoid that the IP network service occupies more video networking bandwidth, the video networking message carrying the IP data message can be subjected to speed limit transmission according to a first preset speed limit value.
Specifically, the first preset speed limit may include a first preset uplink speed limit and a first preset downlink speed limit, and the first preset uplink speed limit and the first preset downlink speed limit may be the same or different. Therefore, if the video network message to be transmitted is an uplink video network message carrying an uplink IP data message, the uplink video network message carrying the uplink IP data message can be subjected to speed-limiting transmission according to a first preset uplink speed-limiting value; if the video network message to be transmitted is a downlink video network message carrying a downlink IP data message, the downlink video network message carrying the downlink IP data message can be subjected to speed-limiting transmission according to a first preset downlink speed-limiting value.
When speed limit transmission is carried out, if the data volume of the video network messages to be transmitted exceeds a first preset speed limit value, the video network messages to be transmitted are discarded or put into a preset cache queue for caching.
In implementation, the rate-limited transmission can be performed in a token bucket manner. Fig. 8 is a schematic diagram of a rate-limited transmission according to an embodiment of the present invention. As shown in fig. 8, the token is stored in the token bucket according to the speed corresponding to the first preset speed limit, for example, if the first preset speed limit is r, the speed corresponding to the first preset speed limit may be 1/r. When the video networking messages (namely the data packets) to be transmitted exist, the video networking messages to be transmitted form a QoS queue, and the corresponding number of tokens are taken out from the token bucket to carry out enqueue cache on the video networking messages to be transmitted and are transmitted. And the tokens in the token bucket are refreshed by the system at regular time, and the number of the tokens is refreshed at regular time according to the first preset speed limit value.
Therefore, the step of performing the speed limit transmission on the video network message according to the first preset speed limit value may include: the video networking gateway equipment judges whether the rest tokens in a preset token bucket can bear the video networking message; if so, transmitting the video networking message; and if not, discarding the video networking message, or putting the video networking message into a preset cache queue for caching, and continuing to transmit when the residual tokens in the token bucket can bear the video networking message.
When the type of the video networking message to be transmitted is a video networking protocol message or a video networking service message (including uplink and downlink situations), in order to ensure the normal operation of the video networking service, the video networking message to be transmitted can be directly transmitted without carrying out speed-limiting transmission on the video networking message.
In the embodiment of the invention, the video network messages to be transmitted are classified, the transmission of the original service of the video network can be carried out without speed limit transmission, and the transmission of the IP data messages is carried out with speed limit transmission, so that the IP network service is prevented from occupying more video network bandwidth, the quality of the original service of the video network is ensured, and the user experience is improved.
In the embodiment of the invention, in order to further improve the service quality and improve the user experience, the video networking service message transmitted by the special terminal port can be subjected to speed-limiting transmission. Therefore, the data processing method of the embodiment of the present invention may further include: and when the video networking gateway equipment receives the video networking service message to be transmitted through the special terminal port, carrying out speed limit transmission on the video networking service message according to a second preset speed limit value.
Specifically, the second preset speed limit may include a second preset uplink speed limit and a second preset downlink speed limit, and the second preset uplink speed limit and the second preset downlink speed limit may be the same or different. Therefore, if the video networking service message to be transmitted is an uplink video networking service message, the uplink video networking service message can be subjected to speed-limiting transmission according to a second preset uplink speed-limiting value; if the video networking service message to be transmitted is a downlink video networking service message, the downlink video networking service message can be subjected to speed-limiting transmission according to a second preset downlink speed-limiting value.
When the speed limit transmission is carried out, if the data volume of the video networking service message to be transmitted exceeds a second preset speed limit value, the video networking service message to be transmitted is discarded or put into a preset cache queue for caching. For a specific speed limiting process, reference is made to the above step 602 and the related description of fig. 8, and this is not discussed in detail in the embodiments of the present invention.
In the embodiment of the invention, the IP data message transmitted by the AC port can be subjected to speed-limited transmission. In an implementation, the AC port may include a physical interface and a VLAN (Virtual Local Area Network) port (also referred to as a subinterface, a logical interface).
Therefore, the data processing method of the embodiment of the present invention may further include:
a1, when receiving the IP data message to be transmitted through the physical interface, the video network gateway device transmits the IP data message at a speed limit according to a third preset speed limit value.
Specifically, the third preset speed limit may include a third preset uplink speed limit and a third preset downlink speed limit, and the third preset uplink speed limit and the third preset downlink speed limit may be the same or different. Therefore, if the IP data message to be transmitted is an uplink IP data message, the uplink IP data message can be subjected to speed-limiting transmission according to a third preset uplink speed-limiting value; if the IP data message to be transmitted is a downlink IP data message, the downlink IP data message can be transmitted at a speed limit according to a third preset downlink speed limit value.
When the speed limit transmission is carried out, if the data volume of the IP data message to be transmitted exceeds a third preset speed limit value, discarding the IP data message to be transmitted or putting the IP data message to be transmitted into a preset buffer queue for buffering. For a specific speed limiting process, reference is made to the above step 602 and the related description of fig. 8, and this is not discussed in detail in the embodiments of the present invention.
A2, when the video network gateway device receives the IP data message to be transmitted through the VLAN port, if the VLAN port has a corresponding preset speed limit value, the video network gateway device performs speed limit transmission on the IP data message according to the preset speed limit value corresponding to the VLAN port.
In implementation, the AC port may include a plurality of VLAN ports, different levels may be set for different VLAN ports, different speed limit values may be set for different VLAN ports, or one or more VLAN ports may be set to not limit speed. Therefore, each VLAN port may or may not have a corresponding preset speed limit.
Therefore, when the IP data message to be transmitted is received through the VLAN port, if the VLAN port has the corresponding preset speed limit value, the speed limit transmission is carried out on the IP data message according to the preset speed limit value corresponding to the VLAN port.
Specifically, the preset speed limit value corresponding to the VLAN port may include a preset uplink speed limit value corresponding to the VLAN port and a preset downlink speed limit value corresponding to the VLAN port, and the preset uplink speed limit value corresponding to the VLAN port and the preset downlink speed limit value corresponding to the VLAN port may be the same or different. Therefore, if the IP data message to be transmitted is an uplink IP data message, the uplink IP data message can be transmitted at a speed limit according to a preset uplink speed limit value corresponding to the VLAN port; if the IP data message to be transmitted is a downlink IP data message, the downlink IP data message can be transmitted at a speed limit according to a preset downlink speed limit value corresponding to the VLAN port.
When the speed limit transmission is carried out, if the data volume of the IP data message to be transmitted exceeds a second preset speed limit value, discarding the IP data message to be transmitted or putting the IP data message to be transmitted into a preset buffer queue for buffering. For a specific speed limiting process, reference is made to the above step 602 and the related description of fig. 8, and this is not discussed in detail in the embodiments of the present invention.
When the IP data message to be transmitted is received through the VLAN port, if the VLAN port does not have a corresponding preset speed limit value, the IP data message is transmitted, namely the IP data message to be transmitted can be directly transmitted without carrying out speed limit transmission on the IP data message.
It should be noted that, for the specific numerical values of the preset speed limit values, a person skilled in the art may select any suitable value according to practical experience, and the embodiment of the present invention is not limited to this.
In the embodiment of the invention, the video networking speed control and the internet traffic management are realized by a method for limiting the speed of each port of the video networking gateway equipment. Since many user equipments are connected to the ports of the video network gateway equipment, controlling the network speed of the ports of the video network gateway equipment also controls the network speed of the user equipments. The video networking gateway equipment can set the network speed for each port, and can set different network speeds for different ports, so that higher bandwidth is set for important equipment such as servers, optimization and reasonable distribution of network resources are realized, key equipment or application can be guaranteed to enjoy higher network speed, and work can be carried out more conveniently, and the bandwidth really creates value for enterprises.
It should be noted that, for simplicity of description, the method embodiments are described as a series of acts or combination of acts, but those skilled in the art will recognize that the present invention is not limited by the illustrated order of acts, as some steps may occur in other orders or concurrently in accordance with the embodiments of the present invention. Further, those skilled in the art will appreciate that the embodiments described in the specification are presently preferred and that no particular act is required to implement the invention.
Referring to fig. 9, a block diagram of a data processing apparatus according to an embodiment of the present invention is shown. The data processing device of the embodiment of the invention can be applied to the video network. An internet of view gateway device is included in the internet of view, the internet of view gateway device including an internet of view port for connecting to an internet of view server.
The data processing device of the embodiment of the invention can comprise the following modules positioned in the video networking gateway equipment:
the video networking gateway device comprises:
a determining module 901, configured to determine a type of a video networking message when the video networking message to be transmitted is received through the video networking port;
the first transmission module 902 is configured to, when the type of the video networking message is a video networking message carrying an IP data message, perform rate-limiting transmission on the video networking message according to a first preset rate-limiting value;
a second transmission module 903, configured to transmit the video networking message when the type of the video networking message is a video networking protocol message or a video networking service message.
Optionally, the determining module includes: the extraction submodule is used for extracting a field of a representation type from a video network packet header of the video network message according to a preset video network packet header structure; and the obtaining submodule is used for obtaining the type corresponding to the extracted field by the equipment according to the preset corresponding relation between the field and the type, and the type is used as the type of the video network message.
Optionally, the first transmission module comprises: the judging submodule is used for judging whether the rest tokens in a preset token bucket can bear the video networking message; the token bucket is stored with tokens according to the speed corresponding to the first preset speed limit value; the first processing submodule is used for transmitting the video networking message when the judgment result is yes; and the second processing submodule is used for discarding the video networking message or putting the video networking message into a preset cache queue for caching when the judgment result is negative.
Optionally, the video networking gateway device further includes a dedicated terminal port for connecting a video networking terminal; the video networking gateway device further comprises: and the third transmission module is used for carrying out speed-limiting transmission on the video networking service message according to a second preset speed-limiting value when the video networking service message to be transmitted is received through the special terminal port.
Optionally, the video networking gateway device further includes an access circuit AC port for connecting an IP network device, where the AC port includes a physical interface and a VLAN port; the video networking gateway device further comprises: the fourth transmission module is used for carrying out speed limit transmission on the IP data message according to a third preset speed limit value when the IP data message to be transmitted is received through the physical interface; and the fifth transmission module is used for carrying out speed-limiting transmission on the IP data message according to the preset speed-limiting value corresponding to the VLAN port if the VLAN port has the corresponding preset speed-limiting value when the IP data message to be transmitted is received through the VLAN port.
In the embodiment of the invention, the video network messages to be transmitted are classified, the transmission of the original service of the video network can be carried out without speed limit transmission, and the transmission of the IP data messages is carried out with speed limit transmission, so that the IP network service is prevented from occupying more video network bandwidth, the quality of the original service of the video network is ensured, and the user experience is improved.
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 data processing method and the data processing apparatus provided by the present invention are described in detail above, and the principle and the implementation of the present invention are explained in the present document by applying specific examples, and the description of the above examples is only used to help understanding the method and the core idea 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 (6)
1. A data processing method is applied to video networking, wherein a video networking gateway device is included in the video networking, the video networking gateway device comprises a video networking port for connecting a video networking server, and the method comprises the following steps:
the video network gateway equipment judges the type of a video network message to be transmitted when receiving the video network message through the video network port;
when the type of the video networking message is a video networking message carrying an IP data message, the video networking gateway equipment performs speed limit transmission on the video networking message according to a first preset speed limit value;
the video networking gateway equipment transmits the video networking message when the type of the video networking message is a video networking protocol message or a video networking service message;
the step of carrying out speed limit transmission on the video network message according to a first preset speed limit value comprises the following steps:
the video networking gateway equipment judges whether the residual tokens in a preset token bucket can bear the video networking message or not; the token bucket is stored with tokens according to the speed corresponding to the first preset speed limit value;
when the judgment result is yes, the video networking gateway equipment transmits the video networking message; if not, discarding the video networking message or putting the video networking message into a preset cache queue for caching;
the video network gateway equipment also comprises a special terminal port for connecting a video network terminal; the method further comprises the following steps:
and when the video networking gateway equipment receives the video networking service message to be transmitted through the special terminal port, the video networking service message is subjected to speed limit transmission according to a second preset speed limit value.
2. The method of claim 1, wherein the step of determining the type of the video networking message comprises:
the video network gateway equipment extracts a field of a representation type from a video network packet header of the video network message according to a preset video network packet header structure;
and the video network gateway equipment acquires the type corresponding to the extracted field according to the preset corresponding relation between the field and the type, and the type is used as the type of the video network message.
3. The method of claim 1, wherein the video networking gateway device further comprises an Access Circuit (AC) port for connecting IP network devices, wherein the AC port comprises a physical interface and a VLAN port; the method further comprises the following steps:
when the video network gateway equipment receives an IP data message to be transmitted through the physical interface, the video network gateway equipment performs speed-limiting transmission on the IP data message according to a third preset speed-limiting value;
when the video network gateway equipment receives an IP data message to be transmitted through the VLAN port, if the VLAN port has a corresponding preset speed limit value, the video network gateway equipment carries out speed limit transmission on the IP data message according to the preset speed limit value corresponding to the VLAN port.
4. A data processing device is applied to video networking, wherein a video networking gateway device is included in the video networking, the video networking gateway device comprises a video networking port for connecting a video networking server, and the video networking gateway device comprises:
the determining module is used for judging the type of the video networking message when the video networking message to be transmitted is received through the video networking port;
the first transmission module is used for carrying out speed-limiting transmission on the video networking message according to a first preset speed-limiting value when the type of the video networking message is the video networking message carrying the IP data message;
the second transmission module is used for transmitting the video networking message when the type of the video networking message is a video networking protocol message or a video networking service message;
wherein the first transmission module comprises:
the judging submodule is used for judging whether the rest tokens in a preset token bucket can bear the video networking message; the token bucket is stored with tokens according to the speed corresponding to the first preset speed limit value;
the first processing submodule is used for transmitting the video networking message when the judgment result is yes;
the second processing submodule is used for discarding the video networking message or putting the video networking message into a preset cache queue for caching when the judgment result is negative;
the video network gateway equipment also comprises a special terminal port for connecting a video network terminal; the video networking gateway device further comprises:
and the third transmission module is used for carrying out speed-limiting transmission on the video networking service message according to a second preset speed-limiting value when the video networking service message to be transmitted is received through the special terminal port.
5. The apparatus of claim 4, wherein the determining module comprises:
the extraction submodule is used for extracting a field of a representation type from a video network packet header of the video network message according to a preset video network packet header structure;
and the obtaining submodule is used for obtaining the type corresponding to the extracted field by the equipment according to the preset corresponding relation between the field and the type, and the type is used as the type of the video network message.
6. The apparatus of claim 4, wherein the video networking gateway device further comprises an Access Circuit (AC) port for connecting IP network devices, the AC port comprising a physical interface and a VLAN port; the video networking gateway device further comprises:
the fourth transmission module is used for carrying out speed limit transmission on the IP data message according to a third preset speed limit value when the IP data message to be transmitted is received through the physical interface;
and the fifth transmission module is used for carrying out speed-limiting transmission on the IP data message according to the preset speed-limiting value corresponding to the VLAN port if the VLAN port has the corresponding preset speed-limiting value when the IP data message to be transmitted is received through the VLAN port.
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