CN112995177B - Unicast addressing conversion method suitable for space-based network - Google Patents
Unicast addressing conversion method suitable for space-based network Download PDFInfo
- Publication number
- CN112995177B CN112995177B CN202110212446.0A CN202110212446A CN112995177B CN 112995177 B CN112995177 B CN 112995177B CN 202110212446 A CN202110212446 A CN 202110212446A CN 112995177 B CN112995177 B CN 112995177B
- Authority
- CN
- China
- Prior art keywords
- addressing
- client
- network
- server
- addressing conversion
- 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
- H04L61/00—Network arrangements, protocols or services for addressing or naming
- H04L61/09—Mapping addresses
- H04L61/25—Mapping addresses of the same type
- H04L61/2503—Translation of Internet protocol [IP] addresses
- H04L61/256—NAT traversal
- H04L61/2564—NAT traversal for a higher-layer protocol, e.g. for session initiation protocol [SIP]
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L61/00—Network arrangements, protocols or services for addressing or naming
- H04L61/09—Mapping addresses
- H04L61/25—Mapping addresses of the same type
- H04L61/2503—Translation of Internet protocol [IP] addresses
- H04L61/256—NAT traversal
- H04L61/2575—NAT traversal using address mapping retrieval, e.g. simple traversal of user datagram protocol through session traversal utilities for NAT [STUN]
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L61/00—Network arrangements, protocols or services for addressing or naming
- H04L61/09—Mapping addresses
- H04L61/25—Mapping addresses of the same type
- H04L61/2503—Translation of Internet protocol [IP] addresses
- H04L61/256—NAT traversal
- H04L61/2585—NAT traversal through application level gateway [ALG]
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L65/00—Network arrangements, protocols or services for supporting real-time applications in data packet communication
- H04L65/10—Architectures or entities
- H04L65/1016—IP multimedia subsystem [IMS]
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Multimedia (AREA)
- Mobile Radio Communication Systems (AREA)
Abstract
The invention discloses a unicast addressing conversion method suitable for a space-based network, aiming at solving the problems of routing safety, mobility, expansibility and the like when a large-scale user of the space-based network is networked. The method generates conversion information of user addressing identification and satellite network addressing identification by maintaining the mapping relation between the addressing identification of the whole network user subnet and the addressing identification in the satellite network, completes the conversion of the user addressing mode at the edge node of the satellite network, and forwards user data in the satellite network according to the satellite addressing identification. The scheme realizes the isolation of user subnet routing information and routing information in a satellite network, the user performs routing exchange in a ground subnet according to a standard addressing mode, and performs routing in a space-based network based on a satellite addressing identifier, so that the problems of routing safety, mobility and the like caused by the adoption of the traditional IP network technology in the space-based network are solved, meanwhile, the satellite processing load of the space-based network is also reduced, and the large-scale user networking of the space-based network is supported.
Description
Technical Field
The invention relates to the technical field of heaven and earth integrated network communication, in particular to a unicast addressing conversion method suitable for a heaven-earth base network.
Background
The space-ground integrated network is an information network consisting of satellites, constellations and corresponding ground infrastructure with different orbits, types and characteristics, which are connected together through inter-satellite and satellite-ground links and can be divided into a space-based network, a space-based access network and a ground node network according to the difference of the functions of satellite nodes. The space-based network is mainly deployed in a layered mode by adopting multifunctional satellites or ground gateway stations distributed on different orbital planes such as GEO, IGSO or HEO, global seamless coverage is achieved, the space-based network is mainly used for extension and expansion of the ground network, and functions of flow sharing, communication guarantee in a hostile environment, global communication transmission and the like can be provided for the ground network.
In the space-based network, there are two addressing systems, one is to use the same IP addressing system as the ground network, and the other is to use a dedicated addressing system. The first idea can realize the integration of a satellite network and a ground network more easily and realize a unified routing exchange architecture, the idea and the ground adopt the same routing protocol, a ground system is carried according to the concept, and the node, the link and the topological characteristic of a space-based network are not considered, so the concept can be seamlessly integrated with the ground network, but the concept cannot be better suitable for the space-based network, and a special addressing system in the second idea is customized aiming at the network characteristic of the space-based network, so the capacity and the efficiency of the space-based network can be improved under the same condition.
In the interconnection of terrestrial networks, there are also a number of addressing translation schemes, such as various tunneling techniques. The tunnel technology is to hide the addressing mode of the user data by multilayer encapsulation and carry out routing addressing in a bearer network based on the addressing identification of outer encapsulation. Simple tunneling techniques can only achieve address translation between point-to-point users. BGP/MPLS VPN technology can implement addressing translation for multiple user mesh communications. However, the BGP protocols in the BGP/MPLS VPN adopt unicast for synchronization of addressing conversion information on the one hand, and are superimposed on the IP technology on the other hand, so that the implementation is complex, the configuration is cumbersome, and the BGP protocols cannot be directly applied to the space-based network with limited resources and difficult maintenance and upgrade.
At present, a standard IP routing protocol mode is adopted in a space-based network, a ground system is carried, and the node, link and topological characteristics of the space-based network are not considered, so that the space-based network can be seamlessly fused with the ground network, but the space-based network cannot be better applied, and the optimization cannot be realized in the networking aspects of expansibility, safety, mobility, operation configuration, system overhead and the like.
Disclosure of Invention
The invention discloses a unicast addressing conversion method suitable for a space-based network, aiming at solving the problems of routing safety, mobility, expansibility and the like when a large-scale user of the space-based network is networked.
In order to achieve the purpose of the invention, the technical scheme adopted by the invention is as follows:
a unicast addressing conversion method suitable for space-based network is realized by two parts of a client and a server together; the method mainly comprises the following steps:
(1) the client acquires the network position and the identity information of the server, and reports and sends the addressing conversion information to the server after generating the addressing conversion information and knowing that the transmission link is communicated;
(2) after receiving the new addressing conversion information, the server side updates the whole network addressing conversion information database, distributes the new addressing conversion information to the whole network client side, and regularly distributes all the collected addressing conversion information to the whole network client side;
(3) if the client receives all the addressing conversion information distributed by the server, the addressing conversion information generated by other clients is stored and updated;
(4) the client performs addressing conversion on the user data based on the stored addressing conversion information, including conversion between a user network link layer frame and a satellite network link layer frame on the user data, and encapsulation and decapsulation of the satellite network addressing identification.
(5) And after receiving the addressing conversion updating information, the server updates the whole network addressing conversion information database and distributes the information to the whole network client.
The method comprises the steps that a keep-alive mechanism exists between a client and a server, addressing conversion information reported by the client is set to be invalid after the server cannot sense the existence of the client, and the invalid addressing conversion information is distributed to the whole network client; after the client cannot sense the server, invalidation processing is carried out on the currently received addressing conversion information; the keep-alive mechanism comprises the following modes:
a) the client periodically reports the addressing conversion information of the client to the server, and the server periodically broadcasts the addressing conversion information of the whole network to all the clients;
b) the client and the server use the heartbeat message to carry out periodic detection;
c) and determining the connection state between the client and the server by combining the network entry and exit states notified by the transmission link unit of the equipment where the client is located.
The client is deployed at all edges of the space-based network which need to be subjected to addressing conversion, and the edges are independent physical devices including a satellite terminal and a spacecraft or space-based network devices which need to be subjected to addressing conversion.
The server is deployed on any one or more devices in the space-based network, and the devices and all the devices where the clients are located are network-reachable; the deployment mode of the server is logically distributed or logically centralized, and the server finally needs to finish the summary and synchronization of the whole network addressing conversion information.
The network position and identity information of the server side comprise an IP address, a protocol port number, a used addressing identification and a station address of the equipment in which the server side is located; the method for the client to acquire the network position and the identity information of the server comprises the steps of acquisition through a third-party way, static configuration or periodic broadcast distribution in a space-based network by the server.
The addressing conversion information generated by the client in the step (1) is mapping information of a user subnet addressing identifier and a satellite network addressing identifier, wherein the user subnet addressing identifier comprises an IPv4 address, an IPv6 address, an IPv4 network segment, an IPv6 network segment, an MAC address and a custom identifier; the satellite network addressing identification comprises a satellite station number of equipment to which the client belongs, a satellite side IP address of the equipment to which the client belongs, and a satellite number and a downlink port number of a satellite in which the client belongs; the method for generating the addressing conversion information by the client comprises static configuration, dynamic protocol interaction and dynamic capture; the method for the client to know the transmission link communication comprises the steps of broadcasting and distributing network access success information and received server position information, wherein the network access success information is notified by a transmission link unit of equipment where the client is located.
The client generates and reports addressing conversion information containing virtual subnet identification in the step (1), and the server has the addressing conversion information of all virtual subnets of the whole network; the client only receives the addressing conversion information which is diffused by the server and is identified in the same virtual subnet as the client; the client can be configured to have a plurality of virtual subnet identifications for supporting networking requirements of multiple users.
The distribution mode of the service end to the collected addressing conversion information in the step (2) comprises triggering distribution and periodic distribution; when the addressing conversion information changes, the server-side triggers and distributes the information after delaying a random jitter time, so that the convergence of the addressing conversion information is accelerated; the server side also distributes periodic addressing conversion information;
the trigger distribution and periodic distribution modes comprise broadcast, multicast and unicast distribution, and the corresponding distribution mode is selected according to the receiving capability and mode supported and configured by the client.
After the addressing conversion information generated by the client in the step (5) is changed, sending addressing conversion updating information to the server, wherein the content of the addressing conversion updating information comprises newly added addressing conversion information, newly deleted addressing conversion information and the change of the existing addressing conversion information; the modes of addressing conversion update information sent by the client to the server comprise trigger update and periodic update.
After the client receives all the addressing conversion information distributed by the server in the step (3), if the effective addressing conversion information of a plurality of different satellite network addressing identifications exists in the same user subnet addressing identification, one piece is selected by adopting an optimal selection strategy or a plurality of pieces are selected by adopting a load balancing strategy for storage and updating.
When the client performs addressing conversion on the user data in the step (4), if the client cannot receive the addressing conversion information distributed by the server, initiating periodic query of the addressing conversion information to the server according to the user subnet addressing identification of the user data; the server side inquires the addressing conversion information database, sends addressing conversion inquiry response to the client side, maintains an inquiry timeout timer of the addressing conversion information, and pushes updated addressing conversion information to the inquiry client side when the addressing conversion information changes. And when the query timeout timer is overtime, deleting the query client information and canceling pushing.
Compared with the background technology, the invention has the following advantages:
the space-based network unicast addressing conversion system realizes the isolation of user subnet routing information and routing information in a satellite network, the user performs routing exchange in a ground subnet according to a standard addressing mode, and performs routing in the space-based network based on a satellite addressing identifier, so that the problems of routing expansibility, safety, mobility and the like caused by the adoption of the traditional IP network technology in the space-based network are solved, meanwhile, the satellite processing load of the space-based network is reduced, the operation configuration of the satellite is simplified, and the large-scale user networking of the space-based network is supported.
Drawings
Fig. 1 is a scene diagram supporting multiple users to perform networking simultaneously in different networking modes according to the present invention.
Fig. 2 is a scene diagram supporting user partition of virtual subnets according to the present invention.
Fig. 3 is a data forwarding diagram of the unicast addressing conversion system of the present invention.
Detailed Description
The preferred embodiments of the present invention will be described with reference to fig. 1-3, it being understood that the preferred embodiments described herein are merely illustrative and explanatory of the invention and are not restrictive thereof.
Fig. 1 depicts a scenario in which a space-based network unicast addressing conversion system supports multiple users to perform networking simultaneously in different networking modes. Fig. 1 shows a unicast addressing conversion system composed of 6 clients and 1 server, in which 2 clients form a two-layer interworking domain, 2 clients form a three-layer IPv4 interworking domain, 2 clients form a three-layer IPv6 interworking domain, and all clients belong to the same management interworking domain.
Wherein, 2 client-sides finish the conversion between user MAC address and satellite addressing mark, and report to the server-side; 2, the client-side completes the conversion between the user IPv4 route and the satellite addressing identification and reports the route to the server-side; 2, the client-side completes the conversion between the user IPv6 route and the satellite addressing identification and reports the route to the server-side; the 6 clients all complete the conversion of management IP routing and satellite addressing identification and report to the server; the server side stores all the addressing conversion information of all the users in different networking modes and finishes the collection and diffusion of the addressing conversion information; and the client of the user searches for a forwarding scene of the user data according to the addressing conversion information diffused by the server.
Fig. 2 depicts a scenario in which the space-based network unicast addressing conversion system supports users to partition virtual subnets, and enables communication in the user virtual subnets to be isolated from virtual subnets. Fig. 2 shows a unicast addressing conversion system consisting of 3 clients and 1 server, where 2 clients belong to the same virtual subnet 1 and 1 client belongs to the virtual subnet 2.
The 2 clients in the virtual subnet 1 can be intercommunicated, the clients in the virtual subnet 1 and the clients in the virtual subnet 2 cannot be intercommunicated, and the addressing conversion information stored by the server is isolated according to the virtual subnet. The space-based network unicast addressing conversion system supports the overlapping of user address spaces and the belonging of users to a plurality of virtual subnets.
Fig. 3 is a schematic diagram of data forwarding of a space-based network unicast addressing conversion system, wherein a client is deployed on a satellite terminal, and the client acquires IP network segment or MAC address information of a user subnet, generates addressing conversion information and reports the addressing conversion information to a server; and the server collects the reported addressing conversion information and performs diffusion distribution on the addressing conversion information to the client on the satellite terminal. After receiving the data of the user subnet, the client performs addressing conversion on the data of the user subnet according to the stored addressing conversion information, encapsulates the addressing identification of the satellite network, forwards the data in the space-based network according to the addressing identification of the satellite network, strips the addressing identification of the satellite network after the user data reaches the target satellite terminal, completes the conversion between the addressing identification of the satellite network and the addressing identification of the user subnet, and forwards the data in the target user subnet according to the standard addressing identification.
The unicast addressing conversion method suitable for the space-based network provided by the invention realizes the isolation of the subnet addressing information of the user and the addressing information in the satellite network, the user performs route exchange in a ground subnet according to a standard addressing mode, and performs routing in the space-based network based on the satellite addressing identification, thereby solving the problems of route safety, mobility, expansibility and the like caused by the adoption of the traditional IP network technology in the space-based network, simultaneously reducing the processing load on the satellite of the space-based network and supporting the large-scale user networking of the space-based network. The method specifically comprises the following steps:
a unicast addressing conversion method suitable for space-based network is realized by two parts of a client and a server together; the method mainly comprises the following steps:
(1) the client acquires the network position and the identity information of the server, and reports and sends the addressing conversion information to the server after generating the addressing conversion information and knowing that the transmission link is communicated;
the network position and identity information of the server side comprises an IP address, a protocol port number, a used addressing identification and a station address of the equipment in which the server side is located; the method for the client to acquire the network position and the identity information of the server comprises the steps of acquisition through a third-party way, static configuration or periodic broadcast distribution in a space-based network by the server.
The addressing conversion information generated by the client is the mapping information of the user subnet addressing identification and the satellite network addressing identification, and the user subnet addressing identification comprises an IPv4 address, an IPv6 address, an IPv4 network segment, an IPv6 network segment, an MAC address and a custom identification; the satellite network addressing identification comprises a satellite station number of equipment to which the client belongs, a satellite side IP address of the equipment to which the client belongs, and a satellite number and a downlink port number of a satellite in which the client belongs; the method for generating the addressing conversion information by the client comprises static configuration, dynamic protocol interaction and dynamic capture; the method for the client to know the transmission link communication comprises the steps of broadcasting and distributing network access success information and received server position information, wherein the network access success information is notified by a transmission link unit of equipment where the client is located.
The client generates the reported addressing conversion information containing the virtual subnet identification, and the server has the addressing conversion information of all the virtual subnets of the whole network; the client only receives the addressing conversion information which is diffused by the server and is identified in the same virtual subnet as the client; the client can be configured to have a plurality of virtual subnet identifications for supporting networking requirements of multiple users.
(2) After receiving the new addressing conversion information, the server side updates the whole network addressing conversion information database, distributes the new addressing conversion information to the whole network client side, and regularly distributes all the collected addressing conversion information to the whole network client side;
the distribution mode of the server side to the collected addressing conversion information comprises triggering distribution and periodic distribution; when the addressing conversion information changes, the server-side triggers and distributes the information after delaying a random jitter time, so that the convergence of the addressing conversion information is accelerated; the server side also distributes periodic addressing conversion information;
the trigger distribution and periodic distribution modes comprise broadcast, multicast and unicast distribution, and the corresponding distribution mode is selected according to the receiving capability and mode supported and configured by the client.
(3) If the client receives all the addressing conversion information distributed by the server, the addressing conversion information generated by other clients is stored and updated;
after the client receives all addressing conversion information distributed by the server, if the effective addressing conversion information of a plurality of different satellite network addressing identifications exists in the same user subnet addressing identification, one satellite network addressing conversion information is selected by adopting an optimal selection strategy or a plurality of satellite network addressing conversion information are selected by adopting a load balancing strategy for storage and updating.
(4) The client performs addressing conversion on the user data based on the stored addressing conversion information, including conversion between a user network link layer frame and a satellite network link layer frame on the user data, and encapsulation and decapsulation of the satellite network addressing identification.
When the client performs addressing conversion on user data, if the client cannot receive addressing conversion information distributed by the server, the client initiates periodic query of the addressing conversion information to the server according to a user subnet addressing identifier of the user data; the server side inquires the addressing conversion information database, sends addressing conversion inquiry response to the client side, maintains an inquiry timeout timer of the addressing conversion information, and pushes updated addressing conversion information to the inquiry client side when the addressing conversion information changes. And when the query timeout timer is overtime, deleting the query client information and canceling pushing.
(5) And after receiving the addressing conversion updating information, the server updates the whole network addressing conversion information database and distributes the information to the whole network client. Wherein, the content of the addressing conversion updating information comprises newly added addressing conversion information, newly deleted addressing conversion information and the change of the existing addressing conversion information; the modes of addressing conversion update information sent by the client to the server comprise trigger update and periodic update.
The method comprises the steps that a keep-alive mechanism exists between a client and a server, addressing conversion information reported by the client is set to be invalid after the server cannot sense the existence of the client, and the invalid addressing conversion information is distributed to the whole network client; after the client cannot sense the server, invalidation processing is carried out on the currently received addressing conversion information; the keep-alive mechanism comprises the following modes:
a) the client periodically reports the addressing conversion information of the client to the server, and the server periodically broadcasts the addressing conversion information of the whole network to all the clients;
b) the client and the server use the heartbeat message to carry out periodic detection;
c) and determining the connection state between the client and the server by combining the network entry and exit states notified by the transmission link unit of the equipment where the client is located.
The client is deployed at all edges of the space-based network which need to be subjected to addressing conversion, and the edges are independent physical devices including a satellite terminal and a spacecraft or space-based network devices which need to be subjected to addressing conversion. The server is deployed on any one or more devices in the space-based network, and the devices and all the devices where the clients are located are network-reachable; the deployment mode of the server is logically distributed or logically centralized, and the server finally needs to finish the summary and synchronization of the whole network addressing conversion information.
The invention generates the addressing conversion information of the user addressing identification and the satellite network addressing identification by maintaining the mapping relation between the addressing identification of the user subnet in the whole network and the addressing identification in the satellite network, completes the conversion of the user addressing mode at the edge node of the satellite network, and forwards the user data in the satellite network according to the satellite addressing identification. The scheme realizes the isolation of the user subnet routing information and the routing information in the satellite network, the user carries out routing exchange in the ground subnet according to a standard addressing mode, and the routing is carried out in the space-based network based on the satellite addressing identification.
The above description is only a preferred embodiment of the present invention, and is not intended to limit the scope of the present invention. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (11)
1. A unicast addressing conversion method suitable for space-based network is realized by two parts of a client and a server together; the method is characterized by mainly comprising the following steps:
(1) the client acquires the network position and the identity information of the server, and reports and sends the addressing conversion information to the server after generating the addressing conversion information and knowing that the transmission link is communicated;
(2) after receiving the new addressing conversion information, the server side updates the whole network addressing conversion information database, distributes the new addressing conversion information to the whole network client side, and regularly distributes all the collected addressing conversion information to the whole network client side;
(3) if the client receives all the addressing conversion information distributed by the server, the addressing conversion information generated by other clients is stored and updated;
(4) the client performs addressing conversion on user data based on the stored addressing conversion information, including conversion between a user network link layer frame and a satellite network link layer frame on the user data, and encapsulation and decapsulation of a satellite network addressing identifier;
(5) and after receiving the addressing conversion updating information, the server updates the whole network addressing conversion information database and distributes the information to the whole network client.
2. The unicast addressing conversion method applicable to the space-based network according to claim 1, characterized in that a keep-alive mechanism exists between the client and the server, and after the server cannot sense the existence of the client, the addressing conversion information reported by the client is set to be invalid, and the invalid addressing conversion information is distributed to the whole network client; after the client cannot sense the server, invalidation processing is carried out on the currently received addressing conversion information; the keep-alive mechanism comprises the following modes:
a) the client periodically reports the addressing conversion information of the client to the server, and the server periodically broadcasts the addressing conversion information of the whole network to all the clients;
b) the client and the server use the heartbeat message to carry out periodic detection;
c) and determining the connection state between the client and the server by combining the network entry and exit states notified by the transmission link unit of the equipment where the client is located.
3. The unicast addressing conversion method applicable to the space-based network according to claim 1, wherein the client is deployed at all edges of the space-based network that need addressing conversion, and the edges are individual physical devices including a satellite terminal and a spacecraft or space-based network devices that need addressing conversion.
4. The unicast addressing conversion method applicable to the space-based network of claim 1, wherein the server is deployed on any one or more devices in the space-based network, and the device is network-reachable with all devices where the client is located; the deployment mode of the server is logically distributed or logically centralized, and the server finally needs to finish the summary and synchronization of the whole network addressing conversion information.
5. The unicast addressing conversion method applicable to space-based network of claim 1, wherein the network location and identity information of the server includes the IP address, protocol port number, used addressing identification and station address of the device where the server is located; the method for the client to acquire the network position and the identity information of the server comprises the steps of acquisition through a third-party way, static configuration or periodic broadcast distribution in a space-based network by the server.
6. The unicast addressing conversion method applicable to space-based network of claim 1, wherein the addressing conversion information generated by the client in step (1) is mapping information of user subnet addressing identifier and satellite network addressing identifier, and the user subnet addressing identifier comprises IPv4 address, IPv6 address, IPv4 segment, IPv6 segment, MAC address and custom identifier; the satellite network addressing identification comprises a satellite station number of equipment to which the client belongs, a satellite side IP address of the equipment to which the client belongs, and a satellite number and a downlink port number of a satellite in which the client belongs; the method for generating the addressing conversion information by the client comprises static configuration, dynamic protocol interaction and dynamic capture; the method for the client to know the transmission link communication comprises the steps of broadcasting and distributing network access success information and received server position information, wherein the network access success information is notified by a transmission link unit of equipment where the client is located.
7. The unicast addressing conversion method applicable to space-based network of claim 1, wherein in step (1), the addressing conversion information generated and reported by the client comprises virtual subnet identification, and the server has the addressing conversion information of all virtual subnets of the whole network; the client only receives the addressing conversion information which is diffused by the server and is identified in the same virtual subnet as the client; the client can be configured to have a plurality of virtual subnet identifications for supporting networking requirements of multiple users.
8. The unicast addressing conversion method applicable to space-based network of claim 1, wherein the distribution manner of the collected addressing conversion information by the service end in step (2) comprises trigger distribution and periodic distribution; when the addressing conversion information changes, the server-side triggers and distributes the information after delaying a random jitter time, so that the convergence of the addressing conversion information is accelerated; the server side also distributes periodic addressing conversion information;
the trigger distribution and periodic distribution modes comprise broadcast, multicast and unicast distribution, and the corresponding distribution mode is selected according to the receiving capability and mode supported and configured by the client.
9. The unicast addressing conversion method applicable to space-based network of claim 1, wherein in step (5), after the addressing conversion information generated by the client changes, the client sends addressing conversion update information to the server, and the content of the addressing conversion update information comprises newly added addressing conversion information, newly deleted addressing conversion information and the change of the existing addressing conversion information; the modes of addressing conversion update information sent by the client to the server comprise trigger update and periodic update.
10. The unicast addressing conversion method applicable to space-based network of claim 5, wherein in step (3), after the client receives all the addressing conversion information distributed by the server, if there are effective addressing conversion information of a plurality of different satellite network addressing identifications to the same user subnet addressing identification, one is selected by using an optimal selection strategy or a plurality of is selected by using a load balancing strategy for storage and update.
11. The unicast addressing conversion method applicable to space-based network of claim 1, wherein in step (4), when the client performs addressing conversion on the user data, if the client cannot receive the addressing conversion information distributed by the server, the client initiates a periodic query of the addressing conversion information to the server according to the user subnet addressing identifier of the user data; the server side inquires an addressing conversion information database, sends addressing conversion inquiry response to the client side, maintains an inquiry timeout timer of the addressing conversion information, and pushes updated addressing conversion information to the inquiry client side when the addressing conversion information changes; and when the query timeout timer is overtime, deleting the query client information and canceling pushing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110212446.0A CN112995177B (en) | 2021-02-25 | 2021-02-25 | Unicast addressing conversion method suitable for space-based network |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110212446.0A CN112995177B (en) | 2021-02-25 | 2021-02-25 | Unicast addressing conversion method suitable for space-based network |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN112995177A CN112995177A (en) | 2021-06-18 |
| CN112995177B true CN112995177B (en) | 2021-11-19 |
Family
ID=76350689
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110212446.0A Active CN112995177B (en) | 2021-02-25 | 2021-02-25 | Unicast addressing conversion method suitable for space-based network |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112995177B (en) |
Families Citing this family (3)
| 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 |
| CN115426031B (en) * | 2022-11-03 | 2023-01-24 | 中国电子科技集团公司第五十四研究所 | Centralized and distributed combined space-based network routing control system |
| CN115514410B (en) * | 2022-11-24 | 2023-03-21 | 成都国星宇航科技股份有限公司 | Remote sensing satellite data transmission system based on Ethernet |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6181697B1 (en) * | 1998-03-31 | 2001-01-30 | At&T Corp. | Method for a unicast endpoint client to access a multicast internet protocol (IP) session and to serve as a redistributor of such session |
| US6937574B1 (en) * | 1999-03-16 | 2005-08-30 | Nortel Networks Limited | Virtual private networks and methods for their operation |
| US7676595B2 (en) * | 2003-12-29 | 2010-03-09 | Intel Corporation | Anycast addressing for internet protocol version six |
| CN102957619B (en) * | 2011-08-25 | 2016-05-18 | 清华大学 | Virtual route system and method |
| CN107592153A (en) * | 2016-07-06 | 2018-01-16 | 北京信威通信技术股份有限公司 | A kind of method and device based on LEO mobile satellite communication system |
| CN110493130B (en) * | 2019-07-27 | 2021-06-15 | 西南电子技术研究所（中国电子科技集团公司第十研究所） | Dynamic and static hybrid routing method for heaven-earth integrated network |
-
2021
- 2021-02-25 CN CN202110212446.0A patent/CN112995177B/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| CN112995177A (en) | 2021-06-18 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN112995177B (en) | Unicast addressing conversion method suitable for space-based network | |
| CN111313961B (en) | Routing control method suitable for space-ground biplane network architecture | |
| CN110034817B (en) | Low-orbit satellite network routing method and device based on software defined network | |
| CN108881029B (en) | Low-orbit satellite network addressing and routing method and system based on satellite-ground decoupling | |
| US6982966B2 (en) | Satellite routing protocol with dynamic IP addressing | |
| CN113014496B (en) | Central control-based PIM-SSM multicast label routing method | |
| CN113014487B (en) | Central control-based PIM-DM multicast label routing method | |
| EP1192555B1 (en) | An efficient internet service implementation for mesh satellite networks | |
| CN109547096B (en) | Addressing and routing method suitable for global low-earth-orbit satellite constellation | |
| CN102118456B (en) | Mixed addressing method for heaven and earth networks based on geographical position information | |
| CN109194383B (en) | Method for managing mobility in low-orbit satellite communication system | |
| CN112929275B (en) | Central control-based PIM-SM multicast label routing method | |
| KR20070095998A (en) | A multicast architecture for wireless mesh networks | |
| CN109511151B (en) | Networking method and communication method of star networking | |
| CN101730166B (en) | System and method for mobile IP | |
| CN113872672A (en) | Satellite-to-ground label routing method for broadband user service intercommunication of low-orbit satellite network | |
| CN113852410A (en) | Satellite-to-ground label routing method for idle state scene of low-orbit network broadband user | |
| CN115426034B (en) | Satellite network networking method based on label routing | |
| Atiquzzaman et al. | TraSH-SN: A transport layer seamless handoff scheme for space networks | |
| KR20140117987A (en) | Mobile commuication network and mobile communication method using the same | |
| Ekici et al. | BGP-S: a protocol for terrestrial and satellite network integration in network layer | |
| JP2000341330A (en) | Communication protocol proxy processing method, communication protocol proxy processing unit and communication protocol proxy picture service unit | |
| CN114567370A (en) | High-orbit backbone network distributed routing communication method | |
| CN107370841A (en) | A kind of method of address resolution efficient on multi-hop wireless network | |
| Go et al. | Challenges and solutions for routing in converged satellite and terrestrial networks |
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 |