CN111555983B - Heaven and earth-oriented multicast data transmission method and device - Google Patents
Heaven and earth-oriented multicast data transmission method and device Download PDFInfo
- Publication number
- CN111555983B CN111555983B CN202010224294.1A CN202010224294A CN111555983B CN 111555983 B CN111555983 B CN 111555983B CN 202010224294 A CN202010224294 A CN 202010224294A CN 111555983 B CN111555983 B CN 111555983B
- Authority
- CN
- China
- Prior art keywords
- multicast
- routing
- configuration
- address
- source
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L45/00—Routing or path finding of packets in data switching networks
- H04L45/16—Multipoint routing
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L12/00—Data switching networks
- H04L12/28—Data switching networks characterised by path configuration, e.g. LAN [Local Area Networks] or WAN [Wide Area Networks]
- H04L12/46—Interconnection of networks
- H04L12/4633—Interconnection of networks using encapsulation techniques, e.g. tunneling
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L45/00—Routing or path finding of packets in data switching networks
- H04L45/14—Routing performance; Theoretical aspects
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Data Exchanges In Wide-Area Networks (AREA)
Abstract
The application discloses a method and a device for transmitting multicast data facing heaven and earth, wherein the method comprises the following steps: carrying out multicast routing configuration according to a control instruction sent by a received multicast source and an IGMP protocol to obtain multicast routing information, wherein the multicast source is a space network device; and receiving the multicast data sent by the multicast source, and sending the multicast data to a multicast data receiving end according to the multicast routing information, wherein the multicast data receiving end is a ground network device. The method and the device solve the technical problem that the multicast data transmission method in the prior art is poor in applicability.
Description
Technical Field
The present application relates to the field of satellite communications technologies, and in particular, to a method and an apparatus for transmitting multicast data for space-ground.
Background
With the development of Internet technology, especially the continuous development of satellite Internet technology, a world-wide integrated network is becoming a future development trend, wherein the world-wide integrated network includes a space network and a ground network, and a satellite internal network and the ground network in the world-wide integrated network still conform to commercial Internet Protocol standards, such as personal information Management Protocol (PIM) or Internet Group Management Protocol (IGMP); due to the characteristics of large delay, high error rate, high satellite movement speed relative to the ground and the like in data transmission in the space-ground integrated network, the commercial internet protocol standard cannot be completely applied to the space-ground integrated network, and the data transmission in the space-ground integrated network needs to use a special transmission protocol, for example, based on a CCSDS space link bearer IP service protocol (IP OVER CCSDS). Therefore, in the prior art, the multicast data of the heaven and earth integrated network cannot be transmitted through the commercial internet protocol standard, so that the applicability of the multicast data transmission method of the heaven and earth integrated network is poor.
Disclosure of Invention
The technical problem that this application was solved is: aiming at the problem of poor applicability of the multicast data transmission method in the prior art, the satellite gateway performs multicast routing configuration through an IGMP protocol, and realizes multicast data transmission between a space network and a ground network according to configured routing information, so that the problem that the space network cannot realize multicast data transmission between the space network and the ground network by using a commercial standard protocol is avoided, and the applicability of the scheme is improved.
In a first aspect, an embodiment of the present application provides a method for transmitting multicast data oriented to the sky and the earth, where the method includes:
carrying out multicast routing configuration according to a control instruction sent by a received multicast source and an IGMP protocol to obtain multicast routing information, wherein the multicast source is a space network device;
and receiving the multicast data sent by the multicast source, and sending the multicast data to a multicast data receiving end according to the multicast routing information, wherein the multicast data receiving end is a ground network device.
In the scheme provided by the embodiment of the application, the satellite gateway performs multicast routing configuration through a control instruction sent by a multicast source and an IGMP protocol to obtain multicast routing information, and forwards multicast data sent by the multicast source to a multicast data receiving end according to the multicast routing information. Therefore, in the solution provided in the embodiment of the present application, the satellite gateway performs multicast routing configuration through an IGMP protocol, and realizes multicast data transmission between the spatial network and the ground network according to the configured routing information, so as to avoid that the spatial network cannot realize multicast data transmission between the spatial network and the ground network using a commercial standard protocol, thereby improving the applicability of the solution.
Optionally, the performing multicast routing configuration according to the control instruction sent by the multicast source and the IGMP protocol includes:
analyzing the control instruction to obtain configuration parameters, wherein the configuration parameters comprise a port number, an IP address of a multicast source, an operation type and an IP address of a multicast group;
and determining task information according to the configuration parameters, and performing multicast routing configuration according to the task information and the IGMP protocol, wherein the multicast routing configuration comprises an entrance routing configuration or an exit routing configuration.
Optionally, determining task information according to the configuration parameter includes:
judging whether routing information corresponding to the IP address of the multicast group exists in a preset multicast group information base or not;
if the routing information exists, judging whether the IP address of the multicast source exists in the multicast group information base or not;
and if the IP address of the multicast source exists, determining the task information according to the IP address of the multicast source and the port number.
Optionally, the configuring the multicast routing according to the task information and the IGMP protocol includes:
if the multicast routing configuration is the entrance routing configuration, the IP address of the multicast source is encapsulated into a message in an IGMPV3 format; sending the message to the multicast source so that the multicast source generates inlet multicast routing information according to the message; or
If the multicast routing configuration is the exit routing configuration, the IP address of the multicast source is encapsulated into a message in an IGMPV3 format; and generating outlet multicast routing information according to the message.
Optionally, after performing multicast routing configuration according to a control instruction sent by a receiving multicast source to obtain multicast routing information, the method further includes:
and receiving a query message sent by the multicast source, and periodically maintaining the multicast routing information according to the query message.
In a second aspect, an embodiment of the present application provides an apparatus for multicast data transmission facing heaven and earth, where the apparatus includes:
the device comprises a configuration unit, a multicast routing configuration unit and a multicast routing information processing unit, wherein the configuration unit is used for performing multicast routing configuration according to a control instruction sent by a received multicast source and an IGMP protocol to obtain multicast routing information, and the multicast source is a space network device;
and the receiving and sending unit is used for receiving the multicast data sent by the multicast source and sending the multicast data to a multicast data receiving end according to the multicast routing information, wherein the multicast data receiving end is ground network equipment.
Optionally, the configuration unit is specifically configured to:
analyzing the control instruction to obtain configuration parameters, wherein the configuration parameters comprise a port number, an IP address of a multicast source, an operation type and an IP address of a multicast group;
and determining task information according to the configuration parameters, and performing multicast routing configuration according to the task information and the IGMP protocol, wherein the multicast routing configuration comprises an entrance routing configuration or an exit routing configuration.
Optionally, the configuration unit is specifically configured to:
judging whether routing information corresponding to the IP address of the multicast group exists in a preset multicast group information base or not;
if the routing information exists, judging whether the IP address of the multicast source exists in the multicast group information base or not;
and if the IP address of the multicast source exists, determining the task information according to the IP address of the multicast source and the port number.
Optionally, the configuration unit is specifically configured to:
if the multicast routing configuration is the entrance routing configuration, the IP address of the multicast source is encapsulated into a message in an IGMPV3 format; sending the message to the multicast source so that the multicast source generates inlet multicast routing information according to the message; or
If the multicast routing configuration is the exit routing configuration, the IP address of the multicast source is encapsulated into a message in an IGMPV3 format; and generating outlet multicast routing information according to the message.
Optionally, the apparatus further comprises: a maintenance unit;
the maintenance unit is specifically configured to: and receiving a query message sent by the multicast source, and periodically maintaining the multicast routing information according to the query message.
In a third aspect, an embodiment of the present application provides a device for multicast data transmission facing heaven and earth, where the device includes:
a memory for storing instructions for execution by the at least one processor;
a processor for executing instructions stored in the memory to perform the method of the second aspect.
In a fourth aspect, the present application provides a computer readable storage medium having stored thereon computer instructions which, when run on a computer, cause the computer to perform the method of the second aspect.
Drawings
Fig. 1 is a schematic structural diagram of a space-and-ground oriented multicast data transmission system according to an embodiment of the present application;
fig. 2 is a schematic flowchart of a method for transmitting multicast data oriented to the sky and the earth according to an embodiment of the present application;
fig. 3 is a schematic structural diagram of a space-and-ground-oriented multicast data transmission apparatus according to an embodiment of the present application;
fig. 4 is a schematic structural diagram of a space-and-ground-oriented multicast data transmission apparatus according to an embodiment of the present application;
fig. 5 is a schematic structural diagram of a space-and-place-oriented multicast data transmission apparatus according to an embodiment of the present application.
Detailed Description
In order to better understand the technical solutions, the technical solutions of the present application are described in detail below with reference to the drawings and specific embodiments, and it should be understood that the specific features in the embodiments and examples of the present application are detailed descriptions of the technical solutions of the present application, and are not limitations of the technical solutions of the present application, and the technical features in the embodiments and examples of the present application may be combined with each other without conflict.
Referring to fig. 1, an embodiment of the present application provides a space-oriented multicast data transmission system, where the system includes: a spatial network subsystem 1 and a ground network subsystem 2. The spatial network subsystem 1 comprises a multicast source 11, a satellite gateway 12 and a spatial link node 13; the ground network subsystem 2 comprises a ground link node 21, a ground gateway 22 and a multicast data receiving end 23; the multicast source 11 serves as a multicast data source and sends multicast data to the satellite gateway 12, after receiving the multicast data, the satellite gateway 12 sends the multicast data to the spatial link node 13, the spatial link node 13 sends the multicast data to the ground link node 21, then the ground link node 21 forwards the received multicast data to the ground gateway 22, and forwards the multicast data to the multicast data receiving end 23 through the ground gateway 22 and the ground network. It should be understood that in the solution provided in the embodiment of the present application, the multicast source 11 may be a one-stage or multi-stage switch.
The method for transmitting multicast data for heaven and earth provided by the embodiment of the present application is described in further detail below with reference to the drawings in the specification, and a specific implementation manner of the method may include the following steps (a method flow is shown in fig. 2):
step 201, the satellite gateway performs multicast routing configuration according to a control instruction and an IGMP protocol sent by a received multicast source, to obtain multicast routing information, where the multicast source is a spatial network device.
Specifically, in the solution provided in the embodiment of the present application, the multicast source sends a control instruction to the satellite gateway, the satellite gateway performs multicast routing configuration according to the control instruction after receiving the control instruction, and the satellite gateway performs multicast routing configuration according to the control instruction sent by receiving the multicast source.
In a possible implementation manner, the performing multicast routing configuration according to a control instruction sent by a reception multicast source and an IGMP protocol includes: analyzing the control instruction to obtain configuration parameters, wherein the configuration parameters comprise a port number, an IP address of a multicast source, an operation type and an IP address of a multicast group; and determining task information according to the configuration parameters, and performing multicast routing configuration according to the task information and the IGMP protocol, wherein the multicast routing configuration comprises an entrance routing configuration or an exit routing configuration.
Specifically, the control instruction sent by the multicast source carries configuration parameters such as a port number, an IP address of the multicast source, an operation type, and an IP address of the multicast group, where the operation type includes addition or deletion. After receiving the control instruction, the satellite gateway analyzes the control instruction to obtain the configuration parameter, and determines the task information according to the configuration parameter.
In one possible implementation manner, determining task information according to the configuration parameter includes: identifying the state of the task information according to the port number, wherein the identification comprises entrance processing or exit processing; judging whether routing information corresponding to the IP address of the multicast group exists in a preset multicast group information base or not; if the routing information exists, judging whether the IP address of the multicast source exists in the multicast group information base or not; and if the IP address of the multicast source exists, determining the task information according to the IP address of the multicast source and the identifier.
Specifically, in the solution provided in this embodiment of the present application, a preset port number, egress information, and ingress information are stored in advance in a database corresponding to the satellite gateway, for example, the preset port number is 0XFF. There are various ways for the satellite gateway to identify the task information state according to the port number, and a preferred way is described below as an example.
Identifying the state of the task information according to the port number, including: judging whether the port is the same as the preset port number or not; if the task information is the same as the access processing information, identifying the state of the task information as the access processing; otherwise, the state of the task information is marked as exit processing.
Further, after the satellite gateway identifies the state of the task information, updating the exit information or the entry information in the database according to the port number, and then determining the task information according to the configuration parameters. Since the operation types include adding or deleting two types, and the process of determining the task information according to the configuration parameters by the satellite network managers of different operation types is different, the process of determining the task information according to the configuration parameters under the two operation types is briefly introduced below.
1. The type of operation being addition
The satellite gateway traverses all multicast sources in a preset multicast group information base by taking the IP address of the multicast group in the configuration parameters as an index, and judges whether routing information corresponding to the IP address of the multicast group exists in the preset multicast group information base or not; if the routing information exists, further traversing all multicast sources in the multicast group information base, and judging whether the IP address of the multicast source exists in the multicast group information base; and if the IP address of the multicast source exists, determining the task information according to the IP address of the multicast source and the identifier.
Further, in the solution provided in the embodiment of the present application, the method further includes: if the routing information corresponding to the IP address of the multicast group does not exist in the preset multicast group information base, traversing the multicast group stored in the preset multicast group information base to judge whether an unused multicast group exists, and if the unused multicast group exists, analyzing and packaging the configuration parameters and adding the configuration parameters into the task information.
Further, in the solution provided in the embodiment of the present application, the method further includes: if the IP address of the multicast source does not exist in the multicast group information base, determining at least one multicast source corresponding to the multicast group from the multicast group information base, determining whether an unused multicast source exists in the at least one multicast source, if so, adding the IP address of the multicast source into the multicast group information base, and increasing the number of the multicast sources in the multicast group information base by 1.
2. The operation type being delete
The satellite gateway traverses all multicast sources in a preset multicast group information base by taking the IP address of the multicast group in the configuration parameters as an index, and judges whether routing information corresponding to the IP address of the multicast group exists in the preset multicast group information base or not; if the routing information exists, further traversing all multicast sources in the multicast group information base, and judging whether the IP address of the multicast source exists in the multicast group information base; if the IP address of the multicast source exists, the IP address of the multicast source in the multicast group information base is cleared, the number of the multicast sources in the multicast group information base is reduced by 1, and the task information is determined according to the IP address of the multicast source and the identification.
Further, in the solution provided in the embodiment of the present application, the method further includes: and if the preset multicast group information base does not have the routing information corresponding to the IP address of the multicast group, not processing.
Further, in the solution provided in the embodiment of the present application, the method further includes: if the IP address of the multicast source does not exist in the multicast group information base, storing the IP of the multicast source into a temporary data storage buffer area to be processed, clearing the IP address of the multicast source in the multicast group information base, and subtracting 1 from the number of the multicast sources in the multicast group information base. And finally, generating task information according to the information of the buffer area to be processed.
Further, after determining the task information, the satellite gateway performs the multicast routing configuration according to the task information, and in the solution provided in this embodiment of the present application, there are multiple ways of performing the multicast routing configuration according to the task information, and a preferred way is described as an example.
In a possible implementation manner, the configuring, according to the task information and the IGMP protocol, the multicast routing includes: if the multicast routing configuration is the entrance routing configuration, the IP address of the multicast source is encapsulated into a message in an IGMPV3 format; sending the message to the multicast source, so that the multicast source generates inlet multicast routing information according to the message; or if the multicast routing configuration is the exit routing configuration, the IP address of the multicast source is encapsulated into a message in an IGMPV3 format; and generating outlet multicast routing information according to the message.
Specifically, in the solution provided in the embodiment of the present application, the multicast routing configuration includes an ingress routing configuration or an egress routing configuration. For example, to facilitate understanding of the above process of configuring the multicast routing according to the task information, the following briefly introduces the processes of configuring the ingress routing and configuring the egress routing, respectively.
1. Ingress routing configuration
1. For add operations
The satellite gateway traverses all multicast sources in the multicast group information base, encapsulates IP addresses of all the multicast sources into a message format of an Internet group management Protocol Version3 (Internet group management Protocol Version3, IGMPv 3), and the message type is an IGMPv3 response message, the multicast source type is addition, then sends the IGMPv3 message to the multicast source corresponding to the satellite gateway through a socket interface, and the multicast source generates inlet multicast routing information according to the IGMPv3 message after receiving the IGMPv3 message.
2. For delete operations
The satellite gateway traverses all multicast sources in the multicast group information base, encapsulates the IP addresses of all the multicast sources into messages in an IGMPv3 format, the message type is an IGMPv3 response message, the multicast source type is deletion, then sends the IGMPv3 messages to the multicast source corresponding to the satellite gateway through a socket interface, and after receiving the IGMPv3 messages, the multicast source generates inlet multicast routing information according to the IGMPv3 messages.
It should be understood that, in the solution provided in the embodiment of the present application, the method for generating the ingress multicast routing information by the multicast source is the same as the commercial protocol standard. The entry multicast routing information refers to link information for information interaction between the multicast source and the satellite gateway.
2. Egress route configuration
1) For add operations
The satellite gateway traverses all multicast sources in the multicast group information base, encapsulates the IP addresses of all the multicast sources into messages in an IGMPv3 format, the message type is an IGMPv3 response message, the multicast source type is addition, then sends the IGMPv3 messages to a protocol stack of the satellite gateway through a socket interface, and generates outlet multicast route information in the multicast source corresponding to the satellite gateway after receiving the IGMPV3 messages.
2. For delete operations
The satellite gateway clears 0 the IP address of the multicast source in the multicast group information base, encapsulates the IP address of the multicast source into a message in an IGMPv3 format, and the message type is an IGMPv3 response message, the multicast source type is deleted, then sends the IGMPv3 message to a protocol stack of the satellite gateway through a socket interface, and generates outlet multicast path information in the multicast source corresponding to the satellite gateway after receiving the IGMPV3 message.
It should be understood that, in the solution provided in the embodiment of the present application, the method for generating the egress multicast routing information by the multicast source is the same as the commercial protocol standard. The export multicast routing information refers to link information for information interaction between the satellite gateway and the spatial link nodes.
Step 202, the satellite gateway receives the multicast data sent by the multicast source and sends the multicast data to a multicast data receiving end according to the multicast routing information, wherein the multicast data receiving end is a ground network device.
Specifically, in the solution provided in this embodiment, the ground gateway in the ground network subsystem may generate ingress route information and egress route information through an IGMP protocol, where the ingress route information refers to link information between the ground gateway and a ground link node, and the egress route information refers to link information between the ground gateway and a multicast data receiving end. After configuring the entrance routing information and the exit routing information according to the IGMP protocol, the satellite gateway receives multicast data sent by a multicast source according to the entrance routing information, sends the multicast data to a spatial link node according to the exit routing information, and then sends the multicast data to a ground link node. And the ground link node sends the multicast data to the ground gateway according to the entrance routing information, and then the ground gateway sends the multicast data to a multicast data receiving end according to the exit routing information.
Further, in order to ensure that the ground-based integrated network can smoothly communicate with each other, in the solution provided in the embodiment of the present application, after step 201, the method further includes: and receiving a query message sent by the multicast source, and periodically maintaining the multicast routing information according to the query message.
Specifically, in the solution provided in this embodiment of the present application, the multicast routing information includes ingress routing information and egress routing information, and for facilitating understanding of the above process of maintaining the multicast routing information, the following briefly introduces the process of maintaining the ingress routing information and the egress routing information, respectively.
1. Maintaining ingress routing information
In the scheme provided by the embodiment of the application, a system timer is further arranged in the space-ground integrated network system, the satellite gateway packages information in the multicast data information base into an IGMPV3 message every 60 seconds according to time information of the system timer, and sends the IGMPV3 message to a multicast source corresponding to the satellite gateway, the multicast source refreshes the ingress routing information after receiving the IGMPV3 message, and if the ingress routing information is not refreshed for more than 180 seconds, the ingress routing information is automatically deleted.
2. Maintaining egress routing information
In the scheme provided by the embodiment of the application, a system timer is further arranged in the space-ground integrated network system, according to the time information of the system timer, the satellite gateway packages the information in the multicast data information base into an IGMPV3 message every 125 seconds, and sends the IGMPV3 message to a protocol stack of the satellite gateway, the multicast source refreshes the ingress route information after receiving the IGMPV3 message, and if the ingress route information is not refreshed for more than 300 seconds, the egress route information is automatically deleted.
In the scheme provided by the embodiment of the application, the satellite gateway performs multicast routing configuration through a control instruction sent by a multicast source and an IGMP protocol to obtain multicast routing information, and forwards multicast data sent by the multicast source to a multicast data receiving end according to the multicast routing information. Therefore, in the solution provided in the embodiment of the present application, the satellite gateway performs multicast routing configuration through an IGMP protocol, and realizes multicast data transmission between the spatial network and the ground network according to the configured routing information, so as to avoid that the spatial network cannot realize multicast data transmission between the spatial network and the ground network using a commercial standard protocol, thereby improving the applicability of the solution.
Based on the same inventive concept as the method shown in fig. 2, an embodiment of the present application provides a space-oriented multicast data transmission apparatus, referring to fig. 3, the apparatus includes:
the configuration unit is used for carrying out multicast routing configuration according to a control instruction sent by a receiving multicast source and an IGMP protocol to obtain multicast routing information, wherein the multicast source is space network equipment;
and the receiving and sending unit is used for receiving the multicast data sent by the multicast source and sending the multicast data to a multicast data receiving end according to the multicast routing information, wherein the multicast data receiving end is ground network equipment.
Optionally, the configuration unit is specifically configured to:
analyzing the control instruction to obtain configuration parameters, wherein the configuration parameters comprise a port number, an IP address of a multicast source, an operation type and an IP address of a multicast group;
and determining task information according to the configuration parameters, and performing multicast routing configuration according to the task information and the IGMP protocol, wherein the multicast routing configuration comprises an entrance routing configuration or an exit routing configuration.
Optionally, the configuration unit is specifically configured to:
judging whether routing information corresponding to the IP address of the multicast group exists in a preset multicast group information base or not;
if the routing information exists, judging whether the IP address of the multicast source exists in the multicast group information base or not;
and if the IP address of the multicast source exists, determining the task information according to the IP address of the multicast source and the port number.
Optionally, the configuration unit is specifically configured to:
if the multicast routing configuration is the entrance routing configuration, the IP address of the multicast source is encapsulated into a message in an IGMPV3 format; sending the message to the multicast source so that the multicast source generates inlet multicast routing information according to the message; or
If the multicast routing configuration is the exit routing configuration, the IP address of the multicast source is encapsulated into a message in an IGMPV3 format; and generating outlet multicast routing information according to the message.
Optionally, referring to fig. 4, the apparatus further comprises: a maintenance unit;
the maintenance unit is specifically configured to: and receiving a query message sent by the multicast source, and periodically maintaining the multicast routing information according to the query message.
Referring to fig. 5, the present application provides a space-oriented multicast data transmission apparatus, including:
a memory 501 for storing instructions for execution by at least one processor;
a processor 502 for executing instructions stored in memory to perform the method described in fig. 2.
A computer-readable storage medium having stored thereon computer instructions which, when executed on a computer, cause the computer to perform the method of fig. 2.
As will be appreciated by one skilled in the art, embodiments of the present application may be provided as a method, system, or computer program product. Accordingly, the present application may take the form of an entirely hardware embodiment, an entirely software embodiment or an embodiment combining software and hardware aspects. Furthermore, the present application 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, optical storage, and the like) having computer-usable program code embodied therein.
The present application is described with reference to flowchart illustrations and/or block diagrams of methods, apparatus (systems), and computer program products according to embodiments of the application. It will be understood that each flow and/or block of the flowchart illustrations and/or block diagrams, and combinations of flows and/or blocks in the flowchart illustrations 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 apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing apparatus, 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 apparatus 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 apparatus to cause a series of operational steps to be performed on the computer or other programmable apparatus to produce a computer implemented process such that the instructions which execute on the computer or other programmable apparatus provide steps for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
It will be apparent to those skilled in the art that various changes and modifications may be made in the present application without departing from the spirit and scope of the application. Thus, if such modifications and variations of the present application fall within the scope of the claims of the present application and their equivalents, the present application is intended to include such modifications and variations as well.
Claims (4)
1. A method for transmitting multicast data facing heaven and earth is characterized by comprising the following steps:
carrying out multicast routing configuration according to a control instruction sent by a received multicast source and an IGMP protocol to obtain multicast routing information, wherein the multicast source is a space network device;
receiving multicast data sent by the multicast source, and sending the multicast data to a multicast data receiving end according to the multicast routing information, wherein the multicast data receiving end is ground network equipment;
the method for configuring the multicast routing according to the control instruction sent by the multicast source and the IGMP protocol comprises the following steps:
analyzing the control instruction to obtain configuration parameters, wherein the configuration parameters comprise a port number, an IP address of a multicast source, an operation type and an IP address of a multicast group;
determining task information according to the configuration parameters, and performing multicast routing configuration according to the task information and the IGMP protocol, wherein the multicast routing configuration comprises an entrance routing configuration or an exit routing configuration;
determining task information according to the configuration parameters, including:
judging whether routing information corresponding to the IP address of the multicast group exists in a preset multicast group information base or not;
if the routing information exists, judging whether the IP address of the multicast source exists in the multicast group information base or not;
if the IP address of the multicast source exists, determining the task information according to the IP address of the multicast source and the port number;
performing the multicast routing configuration according to the task information and the IGMP protocol, including:
if the multicast routing configuration is the entrance routing configuration, the IP address of the multicast source is encapsulated into a message in an IGMPV3 format; sending the message to the multicast source so that the multicast source generates inlet multicast routing information according to the message; or
If the multicast routing configuration is the exit routing configuration, the IP address of the multicast source is encapsulated into a message in an IGMPV3 format; and generating outlet multicast routing information according to the message.
2. The method of claim 1, wherein after performing multicast routing configuration according to a control command sent by a receiving multicast source and obtaining multicast routing information, the method further comprises:
and receiving a query message sent by the multicast source, and periodically maintaining the multicast routing information according to the query message.
3. A space-and-ground oriented multicast data transmission apparatus, comprising:
the configuration unit is used for carrying out multicast routing configuration according to a control instruction sent by a receiving multicast source and an IGMP protocol to obtain multicast routing information, wherein the multicast source is space network equipment;
a receiving and sending unit, configured to receive multicast data sent by the multicast source, and send the multicast data to a multicast data receiving end according to the multicast routing information, where the multicast data receiving end is a ground network device;
the configuration unit is specifically configured to:
analyzing the control instruction to obtain configuration parameters, wherein the configuration parameters comprise a port number, an IP address of a multicast source, an operation type and an IP address of a multicast group;
determining task information according to the configuration parameters, and performing multicast routing configuration according to the task information and the IGMP protocol, wherein the multicast routing configuration comprises an entrance routing configuration or an exit routing configuration;
the configuration unit is specifically configured to:
judging whether routing information corresponding to the IP address of the multicast group exists in a preset multicast group information base or not;
if the routing information exists, judging whether the IP address of the multicast source exists in the multicast group information base or not;
if the IP address of the multicast source exists, determining the task information according to the IP address of the multicast source and the port number;
the configuration unit is specifically configured to:
if the multicast routing configuration is the entrance routing configuration, the IP address of the multicast source is encapsulated into a message in an IGMPV3 format; sending the message to the multicast source so that the multicast source generates inlet multicast routing information according to the message; or
If the multicast routing configuration is the exit routing configuration, the IP address of the multicast source is encapsulated into a message in an IGMPV3 format; and generating outlet multicast routing information according to the message.
4. An apparatus for multicast data transmission oriented to the sky and the earth, comprising:
a memory for storing instructions for execution by at least one processor;
a processor for executing instructions stored in a memory to perform the method of claim 1 or 2.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010224294.1A CN111555983B (en) | 2020-03-26 | 2020-03-26 | Heaven and earth-oriented multicast data transmission method and device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010224294.1A CN111555983B (en) | 2020-03-26 | 2020-03-26 | Heaven and earth-oriented multicast data transmission method and device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN111555983A CN111555983A (en) | 2020-08-18 |
| CN111555983B true CN111555983B (en) | 2023-03-24 |
Family
ID=72007260
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010224294.1A Active CN111555983B (en) | 2020-03-26 | 2020-03-26 | Heaven and earth-oriented multicast data transmission method and device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111555983B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115150319B (en) * | 2022-09-02 | 2022-11-22 | 中国电子科技集团公司第五十四研究所 | Simple and complex star multicast routing method based on distributed control |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002009848A (en) * | 2000-06-23 | 2002-01-11 | Hitachi Ltd | Gateway and multicast communication system |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2826211B1 (en) * | 2001-06-18 | 2004-12-10 | Cit Alcatel | METHOD AND DEVICE FOR LIGHTENING THE SIGNALING LOAD OF A "MULTI-TRANSMISSION" PROTOCOL USING A TRANSMISSION MEDIUM WHICH DOES NOT ALLOW MUTUAL LISTENING BETWEEN TERMINALS OF A NETWORK |
| CN102891980B (en) * | 2012-11-01 | 2015-03-25 | 中国电子科技集团公司第五十四研究所 | Route allocation method of satellite IP (Internet Protocol) video conference system |
| CN108632149B (en) * | 2017-03-20 | 2021-04-02 | 北京美讯泰科通信技术有限责任公司 | Multicast method and routing device for satellite frame relay network |
| CN108111424B (en) * | 2017-12-25 | 2020-08-21 | 航天恒星科技有限公司 | Multicast rapid establishing method and system based on satellite communication system |
-
2020
- 2020-03-26 CN CN202010224294.1A patent/CN111555983B/en active Active
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002009848A (en) * | 2000-06-23 | 2002-01-11 | Hitachi Ltd | Gateway and multicast communication system |
Non-Patent Citations (1)
| Title |
|---|
| 《卫星组播IGMP路由协议的研究与仿真》;骆佳;《CNKI优秀硕士学位论文全文库》;20090215;全文 * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN111555983A (en) | 2020-08-18 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US20170012880A1 (en) | Multicast message forwarding method and device | |
| CN105684382A (en) | Packet control method, switch and controller | |
| US11184267B2 (en) | Intelligent in-band telemetry auto-configuration for IP networks | |
| CN104780080B (en) | Deep message detection method and system | |
| CN106878184B (en) | Data message transmission method and device | |
| US6654350B1 (en) | Method and apparatus for tracking a transaction across a multi-hop network | |
| CN105100002B (en) | The operating method and device of attribute | |
| CN111555983B (en) | Heaven and earth-oriented multicast data transmission method and device | |
| CN115225734A (en) | Message processing method and network equipment | |
| CN111225070A (en) | Flow control method, device and system and SDN controller | |
| CN114338510B (en) | Data forwarding method and system for controlling and forwarding separation | |
| CN106302837A (en) | The mac address table management method of a kind of optical network unit and device | |
| CN109144989B (en) | Data cleaning method and device | |
| CN111682968A (en) | Communication equipment network access management method and system | |
| CN101989946B (en) | Compression method of communication equipment route forwarding table | |
| CN101540711B (en) | Method, system and equipment for establishing point-to-multi-point tunnel in packet network | |
| CN116266145A (en) | Method, system and equipment for processing call | |
| CN109587087B (en) | Message processing method and system | |
| CN109814871B (en) | Node management method and system based on DDS bus | |
| CN110784535B (en) | Message forwarding method, device and network equipment | |
| CN106487694A (en) | A kind of data flow processing method and device | |
| US8130765B2 (en) | Method for processing data packets while communicating with a machine via one or more secondary networks | |
| CN111031402B (en) | Information transmission method and system based on video networking | |
| CN113068241B (en) | Terminal data routing method, base station and medium | |
| US10367725B2 (en) | Network programming |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |