WO2011032462A1 - Procédé d'envoi et de réception de données, système et routeur correspondants - Google Patents

Procédé d'envoi et de réception de données, système et routeur correspondants Download PDF

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Publication number
WO2011032462A1
WO2011032462A1 PCT/CN2010/076532 CN2010076532W WO2011032462A1 WO 2011032462 A1 WO2011032462 A1 WO 2011032462A1 CN 2010076532 W CN2010076532 W CN 2010076532W WO 2011032462 A1 WO2011032462 A1 WO 2011032462A1
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destination
data packet
aid
terminal
source
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PCT/CN2010/076532
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English (en)
Chinese (zh)
Inventor
刘韫晖
黄兵
江华
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中兴通讯股份有限公司
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Publication of WO2011032462A1 publication Critical patent/WO2011032462A1/fr

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W40/00—Communication routing or communication path finding
    • H04W40/02—Communication route or path selection, e.g. power-based or shortest path routing
    • H04W40/22—Communication route or path selection, e.g. power-based or shortest path routing using selective relaying for reaching a BTS [Base Transceiver Station] or an access point

Definitions

  • the present invention relates to the field of Internet technologies, and in particular, to a data transmission and reception method and system and a router.
  • IP TransmissionCP/IP
  • IP addresses have the dual attributes of identity and location, and are the root cause of the Internet's inability to support mobility.
  • the identity attribute of the terminal the IP address cannot be changed during the terminal movement. Otherwise, the upper layer service connection such as TCP and User Datagram Protocol (UDP) will be interrupted as the address changes; as the location attribute of the terminal, The IP address must be changed during the terminal move (the address must have the current subnet prefix), otherwise the router cannot forward the packet to the terminal correctly.
  • UDP User Datagram Protocol
  • the IP address must be changed during the terminal move (the address must have the current subnet prefix), otherwise the router cannot forward the packet to the terminal correctly.
  • the dual nature of IP addresses is also the reason why the security of the Internet cannot be fundamentally resolved.
  • the mobile terminal Since the IP address must contain the location attribute of the terminal, the mobile terminal cannot be assigned a fixed IP address, so the identity of an attacker such as a hacker cannot be determined based on the IP address on the Internet. This is the root cause of the current unresolved security issues such as attacks, fraud and abuse on the Internet.
  • next-generation network technologies based on identity and location separation, such as the Network for Location Identification and Identity Separation Protocol (LISP), Host Identity Protocol (Host). Identity Protocol, HIP) and integrated networks.
  • ILP Network for Location Identification and Identity Separation Protocol
  • Host Host Identity Protocol
  • HIP Identity Protocol
  • the common feature of these technologies is the introduction of two coding spaces, one for the terminal.
  • Identity a location that represents the terminal.
  • Each terminal has both an identity code and a location code.
  • the upper layer service connection such as TCP and UDP is based on the identity code of the terminal to establish a communication connection with the peer.
  • TCP and UDP is based on the identity code of the terminal to establish a communication connection with the peer.
  • each terminal After the identity coding and location coding of the terminal are separated, each terminal can be assigned a fixed identity code as the identity of the communication between the terminals. This allows users to access the Internet in their true identity.
  • the next generation Internet (hereinafter referred to as the new network) based on identity and location separation, the transmission method of identity and location identification in the network is a very important key technology, which determines the degree of influence of the implementation of the new network on the existing network, and the new The transmission efficiency of the network.
  • Access identifier identifies user identity information
  • Route identifier identifies user location information
  • Access Support Node Completes the mapping between the access identifier and the exchange route identifier.
  • the sending process of the data packet includes:
  • Step 1 The user terminal sends a data packet with the access identifier as the source/destination address to the ASN.
  • Step 3 The ASN replaces the access identifier in the data packet with the route identifier and sends it to the backbone network.
  • Step 4 The backbone part network transmits the data packet with the route identifier as the source/destination address.
  • Step 5 After receiving the data packet, the ASN searches for the corresponding access identifier according to the route identifier in the data packet.
  • Step 6 The destination ASN replaces the route identifier in the data packet with the access identifier and sends it to the destination.
  • User terminal The destination ASN replaces the route identifier in the data packet with the access identifier and sends it to the destination.
  • each terminal needs to be assigned a route identifier, and the destination ASN can find the correct access identifier according to the route identifier, so as to send the data packet to the destination terminal, which requires a large number of route identifiers, which is intensified.
  • the IP address of the backbone network is tight; and the router at the destination end needs to query the correspondence between the AID and the RID to complete the data packet to the destination terminal, which increases the burden on the destination end.
  • the technical problem to be solved by the present invention is to provide a data transmission and reception method and system and a router, which solves the problem of tight IP address resources and realizes transmitting as much data as possible with a small number of IP addresses.
  • a data transmission method of the present invention is applied to a network system based on separation of an access identifier (AID) and a route identifier (RID), including:
  • the source terminal sends the first data packet to the destination terminal, and the AID of the source terminal and the AID of the destination terminal are respectively used as the source address and the destination address of the first data packet;
  • the source router After receiving the first data packet, the source router obtains the RID of the destination router to which the destination terminal belongs according to the AID of the destination terminal, and re-encapsulates the AID of the source terminal and the destination terminal together with the data content of the first data packet into the second data packet.
  • Data payload, the RID of the source router and the RID of the destination router are respectively used as the source address and the destination address of the second data packet;
  • the source router sends the second data packet to the destination router through the backbone network.
  • the method further includes: the destination router decapsulating the received second data packet, and re-encapsulating to recover the first data packet, and transmitting the first data packet to the destination terminal.
  • the AID of the terminal in the system is unique to the entire network.
  • the source router queries the AID-RID mapping information according to the AID of the destination terminal, and obtains the RID and AID-RID mapping of the destination router to which the destination terminal belongs.
  • the information is the correspondence between the RID and the AID of all terminals subordinate to the ASN identified by the RID.
  • a data transmission system includes a source terminal, a destination terminal, a source router, and a destination router. among them:
  • the source terminal is configured to: send the first data packet to the destination terminal, and use the AID of the source terminal and the AID of the destination terminal as the source address and the destination address of the first data packet respectively;
  • the source router is configured to: after receiving the first data packet, query the RID of the destination router to which the destination terminal belongs according to the AID of the destination terminal, and re-encapsulate the AID of the source terminal and the destination terminal together with the data content of the first data packet.
  • the data payload of the second data packet is used as the source address and the destination address of the second data packet, and the second data packet is sent to the destination router through the backbone network.
  • the destination router is configured to: decapsulate the received second data packet, and re-encapsulate and restore the first data packet, and send the first data packet to the destination terminal.
  • the AID of the terminal in the system is unique to the entire network.
  • the source router is configured to: 4) query the AID-RID mapping information to obtain the RID of the destination router to which the destination terminal belongs, and the AID-RID mapping information is the RID and all terminals of the ASN subordinate to the RID. Correspondence of AID.
  • a data receiving method is applied to a network system based on AID and RID separation, comprising: after receiving a second data packet sent by a source router, the destination router decapsulates the received second data packet, and the second data packet Encapsulating the AID of the active terminal, the AID of the destination terminal, and the data information in the data payload;
  • the destination router encapsulates the decapsulated data information as data content into the data payload of the third data packet, and uses the AID of the source terminal and the AID of the destination terminal as the source address and the destination address of the third data packet respectively;
  • the destination router sends the third data packet to the destination terminal.
  • a data receiving system is applied to a network system based on AID and RID separation, including a source router, a destination router, and a destination terminal, where:
  • the source router is set to: send a second data packet to the destination router;
  • the destination router is configured to: after receiving the second data packet sent by the source router, decapsulating the received second data packet, and encapsulating the AID of the active terminal and the AID of the destination terminal in the data payload of the second data packet And data information; encapsulating the decapsulated data information as data content
  • the data payload of the three data packets, the AID of the source terminal and the AID of the destination terminal are respectively used as the source address and the destination address of the third data packet, and the third data packet is sent to the destination terminal.
  • a data transmission method is applied to a network system based on AID and RID separation, comprising: a source terminal sending a first data packet to a destination terminal, and using an AID of the source terminal and an AID of the destination terminal as the source of the first data packet respectively Address and destination address;
  • the source access support node After receiving the first data packet, the source access support node (ASN) obtains the RID of the destination ASN to which the destination terminal belongs according to the AID of the destination terminal, and sets the AID of the source terminal and the destination terminal together with the data content of the first data packet. Repacking the data content of the second data packet, and using the RID of the ASN and the RID of the destination ASN as the source address and the destination address of the second data packet;
  • the source ASN sends the second data packet to the destination ASN through the generalized forwarding plane.
  • the ASN decapsulates the received second data packet, and re-encapsulates the data packet to the first data packet, and sends the first data packet to the destination terminal.
  • the AID of the terminal in the system is unique to the entire network.
  • the source ASN queries the AID-RID mapping information from the identity location register (ILR) of the mapping forwarding plane or locally to obtain the destination terminal.
  • ILR identity location register
  • the AID-RID mapping information is the correspondence between the RID and the AID of all terminals subordinate to the ASN identified by the RID.
  • the RID is the IPv4 address of the ASN identified by the RID.
  • the source ASN receives the first data packet from the source terminal via the access network.
  • the source ASN uses the encapsulation format of the Transmission Control Protocol (TCP) packet or the encapsulation format of the User Datagram Protocol (UDP) packet in the step of encapsulating the second data packet.
  • TCP Transmission Control Protocol
  • UDP User Datagram Protocol
  • a data transmission system includes a source terminal, a destination terminal, a source ASN, and a destination ASN, where:
  • the source terminal is configured to: send the first data packet to the destination terminal, and use the AID of the source terminal and the AID of the destination terminal as the source address and the destination address of the first data packet, respectively;
  • the source ASN is set to: after receiving the first data packet, query according to the AID of the destination terminal.
  • the RID of the destination ASN to which the destination terminal belongs is re-encapsulated with the data content of the first data packet and the data content of the first data packet into the data content of the second data packet, and the RID of the ASN and the RID of the destination ASN are respectively taken as The source address and the destination address of the second data packet; and transmitting the second data packet to the destination ASN through the generalized forwarding plane.
  • the destination ASN is further configured to: decapsulate the received second data packet, and re-encapsulate and restore the first data packet, and send the first data packet to the destination terminal.
  • the AID of the terminal in the system is unique to the entire network.
  • the system further includes a mapping forwarding plane, where the mapping forwarding plane includes an ILR, and the ILR is set to: store AID-RID mapping information;
  • the source ASN is set to: query the AID-RID mapping information from the ILR or locally to obtain the RID of the destination ASN to which the destination terminal belongs.
  • the AID-RID mapping information is the correspondence between the RID and the AID of all terminals subordinate to the ASN identified by the RID.
  • the RID is the IPv4 address of the ASN identified by the RID.
  • the source ASN is set to: When encapsulating the second data packet, the encapsulation format of the TCP data packet or the encapsulation format of the UDP data packet is used.
  • a data receiving method is applied to a network system based on separation of an access identifier and a route identifier, including:
  • the destination ASN After receiving the second data packet sent by the source ASN, the destination ASN decapsulates the received second data packet, and encapsulates the AID of the active terminal, the AID of the destination terminal, and the data information in the data payload of the second data packet; The destination ASN encapsulates the decapsulated data information as a data payload of the third data packet, and uses the AID of the source terminal and the AID of the destination terminal as the source address and the destination address of the third data packet, respectively;
  • the ASN sends the third data packet to the destination terminal.
  • the destination ASN receives the second data packet from the source ASN via the generalized forwarding plane; and sends the third data packet to the destination terminal via the access network.
  • a data receiving system is applied to a network system based on a separation of an access identifier and a route identifier, including a source ASN, a destination ASN, and a destination terminal, where:
  • the source ASN is set to: send a second data packet to the destination ASN;
  • the destination ASN is set to: after receiving the second data packet sent by the source ASN, decapsulating the received second data packet, and encapsulating the AID of the active terminal and the AID of the destination terminal in the data payload of the second data packet And the data information; the decapsulated data information is encapsulated as the data payload of the third data packet, and the AID of the source terminal and the AID of the destination terminal are respectively used as the source address and the destination address of the third data packet; The third data packet is sent to the destination terminal.
  • the system also includes: a generalized forwarding plane and an access network, wherein:
  • the destination ASN is configured to: receive the second data packet from the source ASN via the generalized forwarding plane; and send the third data packet to the destination terminal via the access network.
  • a data transmission method is applied to a network system based on AID and RID separation, comprising: a source terminal sending a first data packet to a destination terminal, and using an AID of the source terminal and an AID of the destination terminal as the source of the first data packet respectively Address and destination address;
  • the source access switching router After receiving the first data packet, the source access switching router (ASR) obtains the RID of the destination ASR to which the destination terminal belongs according to the AID of the destination terminal, and sets the AID of the source terminal and the destination terminal together with the data content of the first data packet. Re-encapsulating the data content of the second data packet, and using the RID of the ASR and the RID of the destination ASR as the source address and the destination address of the second data packet;
  • the source ASR sends the second data packet to the destination ASR through the backbone network.
  • the method further includes: the destination ASR decapsulating the received second data packet, and re-encapsulating to recover the first data packet, and transmitting the first data packet to the destination terminal.
  • the AID of the terminal in the system is unique to the entire network.
  • the source ASR queries the AID-RID mapping information from the mapping server of the backbone network or locally to obtain the RID of the destination ASR to which the destination terminal belongs.
  • the AID-RID mapping information is a correspondence between the RID and the AID of all terminals subordinate to the ASR identified by the RID.
  • a data transmission system is applied to a network system based on AID and RID separation, including a source terminal, a destination terminal, a source ASR, and a destination ASR, where:
  • the source terminal is configured to: send the first data packet to the destination terminal, and use the AID of the source terminal and the AID of the destination terminal as the source address and the destination address of the first data packet, respectively;
  • the source ASR is configured to: after receiving the first data packet, query the RID of the destination ASR to which the destination terminal belongs according to the AID of the destination terminal, and re-encapsulate the AID of the source terminal and the destination terminal together with the data content of the first data packet.
  • the data content of the second data packet is used as the source address and the destination address of the second data packet, and the second data packet is sent to the destination ASR through the backbone network.
  • the destination ASR is configured to: decapsulate the received second data packet, and re-encapsulate and restore the first data packet, and send the first data packet to the destination terminal.
  • the AID of the terminal in the system is unique to the entire network.
  • the system further includes a mapping server, the mapping server configured to: store AID-RID mapping information;
  • the source ASR is set to: query the AID-RID mapping information from the mapping server of the backbone network or locally, and obtain the RID of the destination ASR to which the destination terminal belongs.
  • the AID-RID mapping information is the correspondence between the RID and the AID of all terminals subordinate to the ASR identified by the RID.
  • a data receiving system is applied to a network system based on a separation of an access identifier and a route identifier, including a source ASR, a destination ASR, and a destination terminal, where:
  • the source ASR is set to: send a second data packet to the destination ASR;
  • the destination ASR is set to: after receiving the second data packet sent by the source ASR, decapsulating the received second data packet, and encapsulating the AID of the active terminal and the AID of the destination terminal in the data payload of the second data packet And the data information; the decapsulated data information is encapsulated as the data payload of the third data packet, and the AID of the source terminal and the AID of the destination terminal are respectively used as the source address and the destination address of the third data packet; The third data packet is sent to the destination terminal.
  • a router includes a transceiver module, a query module, a package module, and a decapsulation module, wherein: the transceiver module is configured to: send the received first data packet to the decapsulation module, the first data The source address and the destination address of the packet are respectively the AID of the source terminal and the AID of the destination terminal; the second data packet is sent to the destination router through the backbone network; the decapsulation module is set to: decapsulate the first data packet, and the destination terminal The AID is sent to the query module; the AID of the source terminal, the AID of the destination terminal, and the data content of the first data packet are sent to the encapsulation module;
  • the query module is configured to: obtain the RID of the destination router to which the destination terminal belongs according to the AID of the destination terminal, and send the RID to the package module;
  • the encapsulation module is configured to: re-encapsulate the AID of the source terminal and the destination terminal together with the data content of the first data packet into the data content of the second data packet, and use the RID of the router and the RID of the destination router as the second data packet respectively.
  • Source address and destination address ; send the second data packet to the transceiver module.
  • the transceiver module is further configured to: send the received third data packet to the decapsulation module; and send the fourth data packet to the source terminal;
  • the decapsulation module is further configured to: decapsulate the third data packet, and send the AID of the source terminal, the AID of the destination terminal, and the data content of the third data packet to the encapsulation module;
  • the encapsulation module is further configured to: encapsulate the data content of the third data packet into the data content of the fourth data packet, and use the AID of the source terminal and the AID of the destination terminal as the destination address and the source address of the fourth data packet, and the fourth data The packet is sent to the transceiver module.
  • the present invention encapsulates the access identifier in a data packet on the basis of being compatible with the existing IPv4 protocol, and the ASN implements data packet distribution according to the access identifier encapsulated in the data packet, thereby saving the address occupation of the route identifier. It can reduce the impact on the existing network, maintain the uniqueness of the access identifier, and can adapt to the need to solve the ambiguity problem of the Internet IP address; and the destination router can use the corresponding relationship between the AID and the RID without using the query.
  • the AID of the source terminal encapsulated in the data packet and the AID of the destination terminal transmit a data packet to the destination terminal.
  • Figure 1 is an architectural diagram of a network separated from identity and location identifiers
  • FIG. 2 is an architectural diagram of another network in which identity and location identification are separated; 3 is a flowchart of a data transmission method according to the present invention.
  • Figure 5 is a frame structure of a UDP data packet in the present invention.
  • FIG. 6 is a structural diagram of an access support node according to the present invention.
  • the access identifier (AID) of the entire network is configured for each user terminal, and the AID does not change with the movement of the terminal, and the continuity of the service is maintained;
  • the IPv4 address of the ASN is used as the Routing-Location Identifier (RID) of the data transmission.
  • the user terminals under the same access support node use the same RID, that is: Use one route identifier to correspond to multiple access identifiers, saving IP address;
  • the source and destination access identifiers of the access nodes are used as the source and destination addresses of the data packets between the access support nodes, and the source and destination access identifiers are encapsulated as the data packet contents.
  • FIG. 1 is an integrated network in which identity and location identifiers are separated, wherein a mapping server, an authentication server, an Access Switch Router (ASR), and a General Switch Router (GSR) are in the same network of the backbone network. In the plane, the ASR is connected to the terminal.
  • ASR Access Switch Router
  • GSR General Switch Router
  • FIG. 2 shows another network with separate identity and location identifiers.
  • the logical functions of each network element are as follows:
  • An access support node is configured to provide access services for various mobile terminals, assign an access identifier (AID) and a route identifier (RID) to the accessed user, and encapsulate the user data packet and send it to the Transmission in the core network.
  • AID access identifier
  • RID route identifier
  • Map forwarding plane consisting of multiple Identity Location Registers (ILRs) / Packet Transfer Function (PTF) entity, responsible for maintaining the mapping between the user's identity and routing identity in the network, and providing query services to ASN and other ILRs.
  • ILRs Identity Location Registers
  • PTF Packet Transfer Function
  • the authentication center is responsible for recording information such as user categories and user service levels. When users access, they authenticate and authorize users.
  • the Certification Authority supports two-way authentication between the network and the user.
  • the IP backbone network is an interconnection network between ASNs.
  • the main function is to select and forward data packets according to the routing identifiers in the data packets, and forward the data sent by the ASN to the correct destination.
  • the IP network is controlled by the core switching router. (Core Switch Router, CSR).
  • CSR Core Switch Router
  • the IP backbone network is the same as the existing IP network and does not require any modifications.
  • Interoperability Switch Node is an interworking node between the identity and location identifiers and other networks. Two different types of networks must communicate through the ISN.
  • the wireless network is responsible for providing and maintaining the Layer 2 link between the user terminal and the ASN. In the cellular mobile network, it is responsible for wireless resource allocation and management.
  • the wireless network may be Wideband Code Division Multiple Access (WCDMA), Time Division-Synchronous Code Division Multiple Access (TD-SCDMA), Code Division Multiple Access 2000 (Code Division Multiple) Access 2000, CDMA2000), Long Term Evolution (LTE) and other wireless networks.
  • WCDMA Wideband Code Division Multiple Access
  • TD-SCDMA Time Division-Synchronous Code Division Multiple Access
  • CDMA2000 Code Division Multiple Access 2000
  • LTE Long Term Evolution
  • the method of the present invention can be applied to the above two networks in which identity and location identification are separated.
  • the present invention is not limited to the network using ASR and ASN, and the network separated from the identity and location identifier of other routers can be used. Use the method of the invention.
  • the data transmission method of the present invention includes:
  • Step 301 The source terminal sends the first data packet to the source ASN.
  • the source address of the first data packet is the AID (source AID) of the source terminal, and the destination address is the AID (destination AID) of the destination terminal.
  • the packet format is the standard Ipv4 packet format.
  • Step 302 After receiving the first data packet sent by the source terminal through the access side network, the source ASN receives the first data packet. Query the AID-RID mapping information to obtain the RID (destination RID) corresponding to the destination AID, and re-encapsulate the source and destination AIDs with the data content of the first data packet into the data content of the second data packet, and set its own RID (source) RID) as the source address of the second data packet, using the destination RID as the destination address;
  • FIG. 4 shows the encapsulation format of the Transmission Control Protocol (TCP) packet after re-encapsulation of the source ASN.
  • the source RID is used as the destination address and the destination RID is used as the destination address to encapsulate the source and destination AIDs with the data content.
  • FIG. 5 shows the encapsulation format of the User Datagram Protocol (UDP) packet after the source ASN is repackaged.
  • UDP User Datagram Protocol
  • the AID-RID mapping information may be locally configured in an Identity Location Register (IRR) or an ASN.
  • IRR Identity Location Register
  • the ILR is a server that stores a mapping relationship between an access identifier and a route identifier.
  • the ASN may query the mapping information from the ILR or locally to determine the RID.
  • the mapping information is a correspondence between an RID and an AID of all user terminals under the ASN identified by the RID.
  • Step 303 The source ASN sends the re-encapsulated second data packet to the backbone network, and the generalized switching router forwards the second data packet to the destination ASN according to the destination RID.
  • Step 304 The destination ASN decapsulates the received second data packet to obtain the source and destination AIDs, and re-encapsulates and restores the first data packet.
  • the destination router decapsulates the received second data packet, and encapsulates the AID of the active terminal and the AID of the destination terminal in the data payload of the second data packet. And the data information; the destination router encapsulates the decapsulated data information as the data content as the data payload of the third data packet, and uses the AID of the source terminal and the AID of the destination terminal as the source address and the destination address of the third data packet respectively.
  • the third data packet is the first data packet sent by the source terminal.
  • Step 305 The destination ASN sends the restored first data packet to the destination terminal.
  • Step 306 The destination terminal sends the returned data packet to the destination ASN, using its own AID as the source address, and using the AID of the source terminal as the destination address.
  • Step 307 After receiving the returned data packet of the destination terminal, the destination ASN queries the corresponding RID according to the destination address of the data packet, and the data content of the source, destination AID, and returned data packet is heavy. Encapsulated as the data content of the fourth data packet, using the RID of the ASN to which the destination terminal currently belongs as the destination address, and its own RID as the source address;
  • Step 308 The destination ASN sends the fourth data packet to the backbone network, and the generalized switching router forwards the fourth data packet to the source ASN according to the destination address.
  • the processing flow is the same as the destination ASN, including: decapsulating the fourth data packet, and encapsulating the data content of the fourth data packet into the data content of the fifth data packet, and the AID of the source terminal and The AID of the destination terminal is used as the destination address and the source address of the fifth data packet, and the fifth data packet is sent to the source terminal.
  • the processing method is similar to the above-described procedure, except that the processing performed by the ASN is completed by the ASR instead.
  • the present invention further provides a data transmission system, including: a source terminal, a destination terminal, a source ASN, and a destination ASN, where:
  • the source terminal is configured to send the first data packet to the destination terminal, and use the AID of the source terminal and the AID of the destination terminal as the source address and the destination address of the first data packet, respectively;
  • the source ASN is configured to: after obtaining the first data packet, query, according to the AID of the destination terminal, the RID of the destination ASN to which the destination terminal belongs, and re-encapsulate the AID of the source terminal and the destination terminal together with the data content of the first data packet.
  • the RID of the current ASN and the RID of the destination ASN are respectively used as the source address and the destination address of the second data packet; and the second data packet is sent to the destination ASN through the backbone network;
  • the AID-RID correspondence is queried from the ILR or locally, and the RID of the destination ASN to which the destination terminal belongs is obtained.
  • the AID-RID correspondence is the correspondence between the RID and the AID of all terminals of the ASN to which it is identified.
  • the destination ASN is configured to decapsulate the received second data packet, and after re-encapsulation, restore the first data packet, and send the first data packet to the destination terminal.
  • the AID of the terminal in the system is unique to the entire network.
  • FIG. 6 is a structural diagram of a router according to the present invention, including: a transceiver module, a query module, and a seal Install and unpack the module, where:
  • a transceiver module configured to send the received first data packet to the decapsulation module, where a source address and a destination address of the first data packet are an AID of the source terminal and an AID of the destination terminal, respectively;
  • the data packet is sent to the destination router; and is further configured to send the received third data packet to the decapsulation module; and send the fourth data packet to the source terminal;
  • Decapsulating module configured to decapsulate the first data packet, and send the AID of the destination terminal to the query module; send the AID of the source terminal, the AID of the destination terminal, and the data content of the first data packet to the encapsulation module; Decapsulating the third data packet, and transmitting the AID of the source terminal, the AID of the destination terminal, and the data content of the third data packet to the encapsulation module;
  • the query module is configured to obtain the RID of the destination ASN to which the destination terminal belongs according to the AID of the destination terminal, and send the RID to the encapsulation module;
  • the encapsulating module is configured to re-encapsulate the AID of the source terminal and the destination terminal together with the data content of the first data packet into the data content of the second data packet, and use the RID of the ASN and the RID of the destination ASN as the second data packet respectively.
  • the source address and the destination address; the second data packet is sent to the transceiver module; and the data content of the third data packet is further encapsulated into the data content of the fourth data packet, and the AID of the source terminal and the AID of the destination terminal are used as the first
  • the destination address and the source address of the four data packets are sent to the transceiver module.
  • the present invention encapsulates an access identifier in a data packet on the basis of compatibility with the existing IPv4 protocol, and the ASN implements data packet distribution according to the access identifier encapsulated in the data packet, thereby saving the address occupation of the route identifier. Reduce the impact on the existing network, maintain the uniqueness of the access identifier, and adapt to the need to solve the ambiguity problem of the Internet IP address; and the destination router can use the data packet without querying the correspondence between the AID and the RID.
  • the AID of the source terminal encapsulated and the AID of the destination terminal send a data packet to the destination terminal.

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  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Data Exchanges In Wide-Area Networks (AREA)

Abstract

L'invention porte sur un procédé et un système de transmission de données appliqués dans un système de réseau basé sur la séparation de l'identifiant d'accès (AID) et de l'identifiant de routage (RID), le procédé comprenant : l'envoi d'un premier paquet de données d'un terminal source à un terminal destinataire, en utilisant l'AID du terminal source et l'AID du terminal destinataire en tant qu'adresse de source et adresse de destinataire du premier paquet de données respectivement. Après réception du premier paquet de données, le routeur source s'informe du RID du routeur destinataire du terminal destinataire conformément à l'AID du terminal destinataire, et ré-encapsule le contenu de données du premier paquet de données, conjointement avec les AID du terminal source et du terminal destinataire, sous la forme des données utiles d'un deuxième paquet de données, et utilise le RID du routeur source et le RID du routeur destinataire en tant qu'adresse de source et adresse de destinataire du deuxième paquet de données respectivement. Le routeur source envoie ensuite le deuxième paquet de données au routeur destinataire par l'intermédiaire d'un réseau d'infrastructure. La présente invention porte également sur un procédé et un système de réception de données correspondants. L'occupation d'adresse du RID peut être économisée par la présente invention.
PCT/CN2010/076532 2009-09-17 2010-09-01 Procédé d'envoi et de réception de données, système et routeur correspondants WO2011032462A1 (fr)

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Families Citing this family (9)

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Publication number Priority date Publication date Assignee Title
CN103002572B (zh) * 2011-09-16 2018-04-17 中兴通讯股份有限公司 一种获取无线局域网用户位置信息的方法及装置
CN103036758B (zh) * 2011-10-10 2017-02-15 中兴通讯股份有限公司 一种标识网与传统网络互联互通的方法、asr及isr
CN103095581B (zh) * 2011-10-31 2017-03-22 中兴通讯股份有限公司 分离终端身份位置标识的系统、方法和服务路由器
CN103166825B (zh) * 2011-12-16 2018-07-31 中兴通讯股份有限公司 通过扩展通用路由封装技术实现网络互通的方法和系统
CN103312609B (zh) * 2013-06-09 2016-08-10 杭州华三通信技术有限公司 一种报文承载方法及设备
CN106953799A (zh) * 2016-01-06 2017-07-14 中国移动通信集团海南有限公司 一种移动终端的通信方法及装置
CN108881020B (zh) * 2017-05-11 2020-11-06 中兴通讯股份有限公司 有源可信路由管理的方法、装置及其计算机设备
CN107682903B (zh) * 2017-08-24 2020-09-29 中国互联网络信息中心 一种基于标识的网络移动路由方法
CN110875913A (zh) 2018-09-03 2020-03-10 阿里巴巴集团控股有限公司 数据传输方法和系统

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1801764A (zh) * 2006-01-23 2006-07-12 北京交通大学 一种基于身份与位置分离的互联网接入方法
CN101119181A (zh) * 2007-09-13 2008-02-06 北京交通大学 一体化网络网通层的数据报文报头格式的形成和使用方法
CN101127663A (zh) * 2007-09-13 2008-02-20 北京交通大学 一种移动自组织网络接入一体化网络的系统及方法
WO2008038862A1 (fr) * 2006-09-29 2008-04-03 Electronics And Telecommunications Research Institute Procédé de reconnaissance de services destiné à un routeur mis en oeuvre dans un environnement ipv6

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20060271629A1 (en) * 2005-05-26 2006-11-30 Macdowell Alexander D Distributed Challenge and Response Recognition System
CN101459698B (zh) * 2007-12-14 2012-11-14 中国人民解放军信息工程大学 域内和域间的网络互连方法及其系统

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1801764A (zh) * 2006-01-23 2006-07-12 北京交通大学 一种基于身份与位置分离的互联网接入方法
WO2008038862A1 (fr) * 2006-09-29 2008-04-03 Electronics And Telecommunications Research Institute Procédé de reconnaissance de services destiné à un routeur mis en oeuvre dans un environnement ipv6
CN101119181A (zh) * 2007-09-13 2008-02-06 北京交通大学 一体化网络网通层的数据报文报头格式的形成和使用方法
CN101127663A (zh) * 2007-09-13 2008-02-20 北京交通大学 一种移动自组织网络接入一体化网络的系统及方法

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