WO2015018069A1 - Procédé, dispositif et système pour acquérir un service par un terminal de réseau - Google Patents

Procédé, dispositif et système pour acquérir un service par un terminal de réseau Download PDF

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Publication number
WO2015018069A1
WO2015018069A1 PCT/CN2013/081191 CN2013081191W WO2015018069A1 WO 2015018069 A1 WO2015018069 A1 WO 2015018069A1 CN 2013081191 W CN2013081191 W CN 2013081191W WO 2015018069 A1 WO2015018069 A1 WO 2015018069A1
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WIPO (PCT)
Prior art keywords
address
service
network
network terminal
message
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PCT/CN2013/081191
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English (en)
Chinese (zh)
Inventor
宿宝伍
沈承虎
Original Assignee
华为技术有限公司
Priority date (The priority date 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 date listed.)
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Application filed by 华为技术有限公司 filed Critical 华为技术有限公司
Priority to CN201380005839.8A priority Critical patent/CN104521189B/zh
Priority to PCT/CN2013/081191 priority patent/WO2015018069A1/fr
Publication of WO2015018069A1 publication Critical patent/WO2015018069A1/fr

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Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L12/00—Data switching networks
    • H04L12/64—Hybrid switching systems
    • H04L12/6418—Hybrid transport

Definitions

  • the present invention relates to network communication technologies, and in particular, to a method, device and system for acquiring services by a network terminal.
  • the technical solution for the IPTV service and the OTT service is supported by the STB (Set Top Box) in the prior art.
  • the STB obtains the private network for implementing the service from the server providing the IPTV service and the server providing the OTT service, respectively.
  • the IP address using different IP addresses, sends service request messages of different formats to the network terminal, and uses the bridging and routing methods to transmit the service to the upper layer network device respectively.
  • a large number of STBs in the current network cannot support the above. Function, so the need to replace the STB, increased costs.
  • the embodiments of the present invention provide a method, a device, and a system for acquiring a service by a network terminal, to solve the above problem.
  • a first aspect a method for a network terminal to obtain a service, where the method includes a built-in routing table of a network terminal, where the entry of the routing table includes a correspondence between an address network segment of the service and an Internet Protocol IP address of the network terminal,
  • the method includes:
  • the network terminal receives the first packet requesting the first service, where the first packet carries the destination IP address and the source IP address;
  • the source IP address of the second "3" text is a first IP address of the network terminal
  • the entry of the routing table further includes a correspondence between a second address network segment of the second service and a second logical WAN port of the network terminal; a third packet of the second service, where the third packet carries a destination IP address and a source IP address;
  • the fourth layer that sends the second service is sent to the upper layer network, and the source IP address of the fourth packet The address is the second IP address of the network terminal.
  • the method further includes:
  • the entry of the routing table further includes a third IP address of the network terminal
  • the fifth packet of the request service is sent to the upper layer network, and the source IP address of the fifth packet of the request service is received. Is the third IP address of the network terminal.
  • the method further includes: the network terminal acquiring a first IP address that is allocated by the first service server to the network terminal, and the first IP address The address is configured into the routing table of the network terminal.
  • the method further includes: the network terminal acquiring a second IP address that is allocated by the second service server to the network terminal, and the second IP The address is configured into the routing table of the network terminal.
  • the method further includes:
  • a network terminal including a user interface module, is configured to receive a message of a request service sent by a user terminal, where the request service packet carries a destination internet protocol IP address and a source IP address; and a forwarding control module
  • the forwarding control module includes a routing table, where the entry of the routing table includes a correspondence between an address network segment of the service and an IP address of the network terminal, where the forwarding control module is configured to determine the Whether the destination IP address is in the first address network segment of the first service in the routing table, and if yes, sending the second packet of the request service to the upper layer network, where the second packet of the request service is The source IP address is a first IP address of the network terminal;
  • the network side interface module is configured to receive, according to the sending of the second packet of the forwarding control module, the text of the request service sent by the upper layer network.
  • the entry of the routing table of the forwarding control module further includes a correspondence between a second address network segment of the second service and a second IP address of the network terminal.
  • the forwarding control module is further configured to receive a third packet that requests a second service, where the third packet carries a destination IP address and a source IP address.
  • the fourth layer that sends the second service is sent to the upper layer network, and the source IP address of the fourth packet The address is the second IP address of the network terminal.
  • the entry of the routing table of the forwarding control module further includes a third IP address of the network terminal.
  • the forwarding control module is further configured to: if it is determined that the entry in the routing table does not have an address network segment corresponding to the destination IP address of the received request packet, The layer network sends a fifth packet of the request service, and the source IP address of the fifth packet of the request service is the third IP address of the network terminal.
  • the network terminal further includes a dynamic host configuration protocol DHCP module, including a DHCP module, configured to acquire a first IP address that is allocated by the first service server to the network terminal And configuring the first IP address into the routing table of the network terminal.
  • a dynamic host configuration protocol DHCP module including a DHCP module, configured to acquire a first IP address that is allocated by the first service server to the network terminal And configuring the first IP address into the routing table of the network terminal.
  • the DHCP module is further configured to acquire, by the second service server, a second that is allocated to the network terminal An IP address, and configuring the second IP address into the routing table of the network terminal.
  • the network terminal further includes an Ethernet bearer PPP protocol PPPoE module, where the PPPoE module is configured to establish a PPPoE connection with the broadband remote access server BRAS, and obtain the BRAS Determining a third IP address assigned by the network terminal, and configuring the third IP address into the routing table of the forwarding control module.
  • the PPPoE module is configured to establish a PPPoE connection with the broadband remote access server BRAS, and obtain the BRAS Determining a third IP address assigned by the network terminal, and configuring the third IP address into the routing table of the forwarding control module.
  • a communication system comprising the network terminal mentioned in the second aspect or any one of the possible implementations of the second aspect.
  • the user terminal uses an IP address to transmit a plurality of service packets. After receiving the packet, the network terminal queries the routing table and sends the packet to the server of different services.
  • a variety of services enable the STB connected to the user terminal in the live network to be replaced without saving network resources.
  • FIG. 1 is a schematic structural diagram of a communication network networking based on an embodiment of the present invention
  • FIG. 2 is a schematic flowchart of a method for acquiring a service by a network terminal according to an embodiment of the present invention
  • FIG. 3 is a schematic flowchart of a method for acquiring a service by a network terminal according to another embodiment of the present invention
  • the network terminal obtains a schematic diagram of the business process
  • FIG. 5 is a schematic block diagram of a network terminal according to another embodiment of the present invention.
  • FIG. 1 is a schematic structural diagram of a communication network networking based on an embodiment of the present invention.
  • a plurality of user terminals 111, 112, 113, 114 are coupled to the network terminal 120.
  • the user terminal can be a PC, an STB, a telephone, a wireless terminal, or the like.
  • the network terminal here may be an optical network terminal ONT or a Digital Subscriber Line Access Multiplexer (DSLAM) or an Ethernet terminal.
  • ONT optical network terminal
  • DSLAM Digital Subscriber Line Access Multiplexer
  • the user terminal can be connected to the ONT 120 via a cable or to the ONT 120 via a wireless air interface.
  • FTTB Fiber to The Building
  • FTTC Fiber To The Curb
  • user terminals can be connected to the ONT 120 through a user gateway, such as a home gateway.
  • the ONT 120 is a terminal of a Passive Optical Network (PON), which belongs to a user-side edge device of an access aggregation layer.
  • the ONT 120 connects the user terminal to the OLT accessing the aggregation layer.
  • the ONT can also be represented as an ONU or an MDU.
  • the ONT is usually a device directly connected to the user terminal, and the user gateway and the like can also be connected between the ONT and the MDU and the user terminal.
  • the ONU, the ONT, and the MDU may be used interchangeably, and for the sake of convenience, the subsequent unified is represented by the ONT.
  • the ONT 120 can include a user interface module 122, a forwarding control module 124, and a PON interface module 126.
  • the user interface module 122 is configured to provide an interface for connecting the user link, and can be logically divided into a plurality of LANs, such as LAN1, LAN2, LAN3, and LAN4 shown in FIG. 1, and each LAN can correspond to one user terminal.
  • the forwarding control module 124 can perform NAT and routing operations on the message between the user interface module 122 and the PON interface module 126. For example, the uplink packet from the user interface module 124 is NAPT-operated and then routed to the PON interface module. Corresponding WAN port of 126, and routing the downlink packet from PON interface module 126 to the corresponding LAN after NAT operation mouth.
  • the OLT 130 is a device at the access aggregation layer, which provides a service aggregation function in the uplink direction and a service distribution function in the downlink.
  • the OLT 130 is also capable of converting between a PON protocol (e.g., GPON protocol, EPON protocol) and an upper layer network protocol.
  • OLT 130 is coupled to service control layer devices such as BRAS 142 and SR 144.
  • the access aggregation layer may also include one or more local area network switches (not shown) coupled between the OLT and the service control layer device for providing aggregation switching for services.
  • T-CONT 1 , T-CONT 2 and T-CONT 3 shown in FIG. 1 represent service containers defined by the GPON system, and each ONT 120 can be assigned one or more T-CONTs to transmit data, wherein different service types Can correspond to different T-CONTs.
  • the logical link is similar to the T-CONT of a GPON system.
  • the above GPON can be applied to ITU-T G.984, ITU-T G.987, or a combination of the two, and the uplink rates are 1G and 10G, respectively.
  • higher-speed GPON systems can also be used.
  • 40G GPON can be applied to IEEE 802.3ah, IEEE 802.3 av, or a combination of the two, and the uplink rates are 1G and 10G respectively.
  • it can also be used in future higher-rate EPON systems, such as 40G EPON.
  • G following the number indicates Gigabit.
  • the BRAS can implement network bearer functions, such as the PPPoE connection for terminating users and the traffic function of the aggregated users. Through the BRAS, service policy parameters such as IP address, address lease, etc. can be returned for the user terminal.
  • the DHCP server provides service policy parameters such as IP address and address lease time for user access.
  • the DHCP server can be connected to the BRAS remotely or it can be built into the BRAS.
  • the business operation system provides a variety of services, such as OTT service, HIS service, VoIP service, and IPTV service. Each service can provide corresponding services to one or more business servers. These businesses
  • the OTT service refers to the Internet operator using the broadband network of the telecom operator to develop its own services and directly provide services and billing to users.
  • the applications in the store are all OTT businesses.
  • An embodiment of the present invention provides a method for a network device to obtain a service, as shown in FIG. 3, as follows: S300: A network terminal receives a first packet of a request service.
  • the user terminal sends a service request message to the network terminal, where the service request message carries a source IP address and a destination IP address.
  • the source IP address is the private network IP address of the user terminal.
  • the destination IP address is the address of the server that provides the service to which the packet requesting the service is ultimately sent.
  • the service request message also carries the active MAC address and the destination MAC address.
  • the source MAC address is the MAC address of the user terminal, and the destination MAC address is the MAC address of the network terminal.
  • the network terminal can detect whether the user terminal is a legitimate user terminal by using the source MAC address.
  • S310 Determine whether the destination IP carried in the first packet is in the first address network segment of the first service.
  • the network terminal queries the local routing table of the network terminal, as shown in Table 1, and determines whether the destination IP address carried in the service request packet belongs to the route. A specific address network segment in the table.
  • the destination IP carried in the first packet is in the first address network segment of the first service, and the second packet of the request service is sent to the upper layer network.
  • the second packet is to convert the source IP address in the first packet to the first WAN port address of the network terminal.
  • the WAN port address described here is the public network IP address of the network terminal. As shown in Table 1, the first WAN port address corresponds to the first IP address, the second WAN port address corresponds to the second IP address, and so on.
  • the network terminal determines whether the destination IP address carried in the service request packet belongs to the second address network segment in the routing table.
  • the destination IP address carried in the first packet is in the second address network segment of the second service, and the third network packet of the request service is sent to the upper layer network device.
  • the source IP address in the third packet is transformed into the second of the network terminal.
  • the WAN port address that is, the second IP address corresponding to the second service.
  • the upper layer network device sends a fourth packet requesting the service.
  • the source IP address of the fourth page is transformed into the WAN port address corresponding to the default route of the network terminal, that is, the third IP address.
  • the fourth packet is to convert the source IP address in the first packet to the WAN port address corresponding to the default route of the network terminal.
  • the user terminal uses an IP address to send multiple service messages.
  • the network terminal queries the routing table and sends the packet to the server of different services to obtain multiple services.
  • the STB connected to the user terminal in the existing network does not need to be replaced, which saves network resources.
  • the user terminal and the network terminal are STB and ONT, respectively, and the ONT can provide the IPTV service and the OTT service to the user through the STB.
  • the network terminal in the embodiment of the present invention is not limited to the ONT, and the service provided by the network terminal is not limited to the IPTV service and ⁇ .
  • Step 0 ⁇ Obtain an IP address for accessing the Internet through the PPPoE connection establishment process, and configure the obtained IP address into the routing table on the ONT.
  • This process can be implemented by the PPPoE client of the ONT and the remote PPPoE server.
  • the ONT After the ONT is powered on, establish a PPPoE connection with the BRAS as the PPPoE server, obtain the IP address of the Internet access, and configure the obtained IP address to the routing table on the ONT.
  • the IP can be configured as the WAN port address of the default routing setting as the IP address to access the Internet.
  • Table 1 shows an example of a routing table.
  • the routing table entry contains the address network segment, mask, WAN port address, and next hop address.
  • the address network segment is usually provided by the operator providing the service.
  • the WAN port, the network terminal and the network side interface, in the embodiment of the present invention is a logically divided WAN port, that is, the IP address obtained by the network terminal from different service servers, which can be configured for multiple WAN ports.
  • Multiple public IP addresses each WAN port corresponds to a public IP address.
  • These public network IP addresses can be provided by different servers. For example, public network IP addresses of multiple types of services can be assigned to network terminals by the servers of their respective service operators. Different services, using different IP addresses.
  • the WAN port is coupled to the PON interface module, and the PON interface module can be logically divided into multiple WAN ports. Step 1: The STB sends a DHCP Discovery message to the ONT.
  • the DHCP discovery sent by the STB to the ONT is called the first DHCP discovery packet.
  • Table 2 shows an example of the structure of a DHCP message.
  • OP the operation type of the message, which is divided into a request message and a response message, 1 is a request message; 2 is a response message.
  • the specific packet type is identified in the option field.
  • Htype Hardware class, Ethernet is 1; Htype can represent the hardware class of the DHCP client. Hlen: Hardware length, Ethernet is 6; Hlen can represent the hardware length of the DHCP client. Hops: Number of DHCP relays through which DHCP messages pass. This field is incremented by one each time a DHCP message passes through a DHCP relay. If it is in the same network, it is 0.
  • Transaction ID Transaction ID, which is used to match the request and corresponding message between the client and the server. The random number is selected by the client when it initiates a request, and is used to identify the address request process.
  • the time specified by the user the time after the start of the address acquisition and update; the time elapsed after the DHCP client starts the DHCP request. If not used, it can be set to a fixed value, such as fixed to 0.
  • Flags From 0-15bits, the first left bit is 1 to indicate that the server will broadcast packets to the client, 0 means unicast, and the rest are not used.
  • Ciaddr the IP address of the client
  • IP address used in the bootstrap process the IP address of the server from which the DHCP client obtains information such as the IP address.
  • Giaddr Forwarding proxy (gateway) IP address; usually the IP address of the first DHCP relay that the DHCP client sends after requesting a message.
  • Sname Optional name of the server, ending with 0x00; usually the server name of the DHCP client to obtain information such as the IP address.
  • the startup file name usually the startup configuration file specified by the DHCP server for the DHCP client. Name and path information.
  • Option fields each field can be variable length. These fields can be selected as needed. For example, you can include some or all of the configuration information such as the type of the packet, the effective lease, the IP address of the DNS server, the IP address of the WINS server, and the vendor ID.
  • the DHCP Option field is represented by the format of Type-Length-Value. The contents of the Option option can be found in the Internet Engineering Task Force standard RFC 2132 and RFC 3442.
  • the broadcast packet is sent by the DHCP client to the DHCP client.
  • the purpose of the broadcast is to enable the DHCP server to receive the packet.
  • the client can add a request parameter list ("Request Parameter List”) option in the option field of this message to indicate the various parameters that you want to obtain.
  • the DHCP Discovery message can carry the Option 60 field to provide authentication information, and can also provide authentication information through other option fields.
  • the Option 60 field contains some authentication information, such as one or more information such as vendor, STB identifier, MAC address, account number, and password.
  • the ONT side can legally authenticate the STB based on the verification information.
  • the information carried in the Option 60 field may be different according to different operators.
  • the Option 60 field mentioned in the embodiment of the present invention is not limited to a specific carrier.
  • Step 2 After the ONT receives the first DHCP Discovery message sent by the STB, the relay or proxy STB sends a second DHCP Discovery message to the DHCP server remotely connected to the ONT to request an IP lease.
  • the second DHCP discovery includes verification information from the STB, such as the content of the Option 60 field, to be provided to the remotely connected DHCP server.
  • the second DHCP discovery message can be transparently transmitted to the DHCP server of the IPTV service platform through the IPTV SR.
  • the remotely connected DHCP Server can be placed in an SR or other device that includes a DHCP Server.
  • the ONT can perform legal authentication on the STB based on the verification information in the first DHCP discovery packet.
  • the ONT may extract the Option 60 field from the first DHCP discovery packet and then re-encapsulate to generate a second DHCP discovery packet.
  • the ONT can also extract the content in the first DHCP discovery message, such as the verification information of the STB, to generate a second DHCP discovery message.
  • the ONT can contain the DHCP Server module and DHCP Client module internally. Piece.
  • the DHCP server module copies the field information contained in the packet to the DHCP client module in the ONT.
  • the DHCP client proxy STB sends a DHCP discovery packet to the network, that is, the second DHCP discovery packet. .
  • the second DHCP discovery packet is a broadcast packet.
  • the second DHCP discovery message can be relayed to the designated IPTV DHCP server via the IPTV SR.
  • Step 3 After receiving the second DHCP discovery message, the IPTV DHCP server responds by using a DHCP Offer message to return an IP address that can be assigned to the ONT.
  • the packets provided by DHCP can carry routing information. The routing information can be returned through the Option 121 field.
  • the DHCP-provided message can reach the ONT via the SR.
  • the IPTV DHCP server can perform authentication based on the Option 60 information. After the authentication is passed, the DHCP-backed packet is sent to the SR, and the SR forwards the DHCP-provided packet.
  • Step 4 After receiving the DHCP provisioning packet that provides the IP address, the ONT sends a DHCP Request packet to the SR to select an IP address.
  • the DHCP request message carries the selected IP address to indicate "the IP address desired by the user", and the address is selected from the IP address provided in the DHCP-provided message.
  • the DHCP client of the ONT After receiving the DHCP-supplied message from the SR, the DHCP client of the ONT sends a broadcast DHCP request message to the SR.
  • This "DHCP Server IP Address" is used by the IPTV DHCP server to verify whether the IP address selected in the DHCP Request message is an offer issued by itself.
  • the SR After receiving the DHCP Request message sent by the ONT, the SR sends the DHCP Request message to the IPTV DHCP server. After the authentication is passed based on Option 60, the IPTV DHCP Server sends a DHCP Confirm message to the SR to confirm the IP lease.
  • the static routing entry is carried in the Option 121 field in the DHCP acknowledgement packet.
  • Step 5 After receiving the DHCP request message, the IPTV DHCP server responds to a DHCP acknowledgement message if it agrees to the IP address selected by the DHCP client, and adds the IP address lease option to the DHCP acknowledgement message field. If the IPTV DHCP Server does not agree with the IP address selected by the DHCP client, it returns a DHCP unacknowledged message.
  • the DHCP request packet carries the server selected by the DHCP client. Address, such as the content of the Siaddr field, the IPTV DHCP Server determines whether to process the DHCP request message based on the address of the server selected by the DHCP client.
  • the SR forwards the Option 121 field to the ONT.
  • the ONT responds to the receipt of the DHCP acknowledgment message, and uses the IP address in the received DHCP acknowledgment message as the logical WAN port address of the IPT V service, and configures the static routing entry in the received DHCP acknowledgment message to the ONT.
  • the routing table shown in Table 1. If the IPTV WAN port has not been created on the ONT, the IPT V WAN port creation operation can be triggered.
  • the IPT V WAN port here is a logical WAN port.
  • the configuration of the routing table may be configured by using Optionl 21, or may be configured by other methods, such as the technical report TR 069 defined by the broadband forum.
  • TR is a technical report. abbreviation.
  • Step 6-8 The ONT assigns a private network IP address to the STB.
  • the user terminal can use the same private network IP address to access different types of services, such as using the address as the IP address of the OTT service and the IPTV service.
  • the ONT After receiving the IP address assigned by the IPTV DHCP Server, the ONT will take an address from its local address pool and assign it to the STB as the private IP address of the STB.
  • the STB can use the private IP address as a unique address for requesting different types of services.
  • the DHCP request message carries the DHCP Option 60 information in step 7 to report the configuration information of the STB.
  • the ONT can ignore the information or check the STB based on the information.
  • Step 9 The STB sends a packet requesting a service to the ONT. After receiving the packet, the ONT forwards the packet according to the packet content and the routing table information. The service packet of each service type corresponds to the service. The WAN port is forwarded to the upper layer network.
  • the ONT can forward service packets of multiple service types to their corresponding WAN ports.
  • Each WAN port corresponds to a unique WAN port address.
  • the ONT searches the routing table, forwards it from the HSI WAN port, performs NAT operation before forwarding it from the WAN port, and converts the private network IP address that is the source IP address into HSI.
  • WAN port address For the downlink service packet of the OTT service received from the PON interface, the routing table is searched, and the NAT operation is performed, and the destination IP address of the downlink service packet is converted into the STB pair.
  • the IP address of the private network should be forwarded to the port or interface corresponding to the STB.
  • the ONT For the packet of the IPTV service from the STB, the ONT searches the routing table, forwards it out from the IPTV WAN port, performs NAT operation before forwarding it from the WAN port, and converts the private network IP address that is the source IP address into the IPTV WAN port. Address: For the IPTV service received from the PON interface, the ONT searches the routing table, performs NAT operations, and forwards the packet to the corresponding port or interface of the STB.
  • the service text sent by the STB can carry:
  • Source MAC address The physical address used to identify the STB.
  • Destination MAC address The physical address used to identify the ONT.
  • the source IP address is used to identify the IP address of the STB.
  • the source IP address is a private network IP address.
  • IP address The IP address used to identify the service
  • the ONT After receiving the above packet, the ONT verifies whether the STB is legal according to the source MAC address.
  • the destination IP address is 126.201.1.5, which is the IP address of the IPTV service.
  • the ONT queries the routing table according to the destination IP address carried in the packet. As shown in Table 1, the destination IP address belongs to the IPTV service address network segment, and is forwarded from the WAN port corresponding to the IPTV service address network segment, that is, the IPTV WAN port.
  • the service message is sent.
  • the source IP address in the service packet that is, the private network IP address 192.168.1.25
  • the WAN port address corresponding to the IPTV service address network segment that is, the IPTV WAN port IP
  • the next hop address the following hop IP address 101.7.1.9.
  • the ONT translates the source private network IP address into the WAN port in the default route and encapsulates the next hop address, such as the BRAS IP address.
  • the embodiment of the present invention is only described by taking the ONT as an example.
  • the method described in the foregoing steps may also be used.
  • the embodiment of the present invention is not limited to the ONT.
  • FIG. 5 is a schematic diagram of a network terminal according to an embodiment of the present invention. As shown in FIG. 5, the network terminal 500 can include:
  • the user interface module 510 is configured to couple at least one user terminal. Through the user interface module 510 Sending a downlink packet to the user terminal and receiving an uplink packet from the user terminal.
  • the device is configured to receive a service packet of a specific service type sent by the user terminal, where the service text of the specific type of service carries a destination IP address and a source IP address.
  • the user interface module 510 can transmit and receive various types of packets, including but not limited to at least one of the following: a DHCP message, a service of the OTT service, a service message of the IPTV service, a service message of the VoIP service, and the like.
  • a DHCP message a service of the OTT service
  • a service message of the IPTV service a service message of the VoIP service
  • the like a service message of the VoIP service
  • the forwarding control module 520 is coupled to the user interface module 510, and is coupled to the network interface module 530.
  • the forwarding control module 520 stores a routing table.
  • the table structure of the routing table is as shown in Table 1.
  • the routing table may be built in the forwarding control module forwarding control module 520, and may also be stored in the memory of the network terminal 100 externally coupled to the forwarding control module 520 for access by the forwarding control module 520.
  • the forwarding control module 520 determines that the destination IP address carried in the received uplink service packet is included in the configured network segment corresponding to the specific service type, and is forwarded through the WAN port corresponding to the address network. Before being forwarded to the WAN port, the packet is received from the user interface module 510 for NAT operation and packet encapsulation.
  • the service of the specific service type includes at least one of the following: an IPTV service and a VoIP service.
  • the forwarding control module 520 determines that the destination IP address carried in the received uplink service packet cannot be matched to the address network segment corresponding to the specific service type, the forwarding control module 520 sends the destination IP address to the default WAN port. Before forwarding the packet to the default WAN port, the received upstream packet is encapsulated with NAT and encapsulated.
  • the service of the specific service type includes at least one of the following: an HSI service and an OTT service.
  • the network terminal supports multiple WAN ports, and the forwarding control module 520 can match the destination IP address and the corresponding address network segment according to a service order, and if it can match an address network, according to the matched address network. Segment, determine the WAN port corresponding to the address network segment. If the forwarding control module 520 does not match, it is forwarded through the default WAN port.
  • the forwarding control module 520 For details on the matching process, NAT operations, and packet encapsulation, refer to the description of the method.
  • the forwarding control module 520 receives the downlink service packet from the network interface module 530.
  • the content of the downlink service packet is matched with the routing table and forwarded to the corresponding interface of the STB.
  • the forwarding control module 520 can perform a NAT operation on the downlink service packet.
  • the network interface module 530 is configured to send an uplink packet to the upper layer network and receive the downlink packet sent by the upper layer network.
  • the network interface module 530 includes multiple WAN ports, and the WAN ports corresponding to different service types are also different. These WAN ports are logically divided WAN ports, that is, logical WAN ports.
  • the network interface module 530 can be a PON interface module, and the PON interface module includes a PON MAC processing circuit or processor.
  • the PON interface module can include an optical transceiver module.
  • the network terminal 500 may also include a DHCP module 540 and a PPPoE module 550.
  • the PPPoE module 550 is responsible for establishing and maintaining a PPPoE connection between the network terminal 500 and the PPP server, and obtains an IP address assigned to the network terminal 500 through the PPPoE process for accessing the Internet.
  • the IP address can serve as the default WAN port address of the user terminal connected to the network terminal 500.
  • the default WAN port supports services of at least one of the HSI service and the OTT service.
  • the DHCP module 540 as an intermediate module of the user terminal and the DHCP server connected to the network terminal 500, saves the public network IP address of the corresponding service allocated by the service provider's DHCP server to the user terminal to the network terminal 500, and allocates the same to the user terminal. Private network IP address.
  • the network terminal 500 allows a user terminal to use the same private network IP address for different types of services.
  • Table 1 shows an example of the public network IP address of the corresponding service stored on the network terminal 500.
  • the user terminal uses an IP address to transmit a plurality of service packets. After receiving the packet, the network terminal queries the routing table and sends the packet to the server of different services.
  • a variety of services enable user terminals in the existing network to access multiple services without replacing them, and the implementation is simple, saves network resources, and improves user satisfaction.
  • An embodiment of the present invention further provides a communication system, and a schematic diagram of a networking structure of the communication system is shown in FIG. 1 .
  • the communication system includes the network terminal 120 provided by the embodiment of the present invention. One end of the network terminal is connected to the user terminal, and one end is connected to the upper layer network.
  • the network terminal and the user terminal in the system, the message interaction before the upper layer network, and the execution process are performed.
  • the structure of the specific network terminal please refer to See the description of the embodiment corresponding to FIG. 5 and FIG. 5, and details are not described herein again.
  • Computer readable media includes both computer storage media and communication media including any medium that facilitates transfer of a computer program from one location to another.
  • a storage medium may be any available media that can be accessed by a computer.
  • computer readable media may comprise RAM, ROM, EEPROM, CD-ROM or other optical disk storage, disk storage media or other magnetic storage device, or can be used for carrying or storing in the form of an instruction or data structure.
  • the desired program code and any other medium that can be accessed by the computer may suitably be a computer readable medium.
  • the software is transmitted from a website, server, or other remote source using coaxial cable, fiber optic cable, twisted pair, digital subscriber line (DSL), or wireless technologies such as infrared, radio, and microwave, then the coaxial cable , fiber optic cable, twisted pair, DSL, or wireless technologies such as infrared, wireless, and microwaves are included in the fixing of the associated media.
  • coaxial cable, fiber optic cable, twisted pair, DSL, or wireless technologies such as infrared, wireless, and microwaves are included in the fixing of the associated media.
  • a disk and a disc include a compact disc (CD), a laser disc, a disc, a digital versatile disc (DVD), a floppy disk, and a Blu-ray disc, wherein the disc is usually magnetically copied, and the disc is The laser is used to optically replicate the data. Combinations of the above should also be included within the scope of the computer readable media.

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

Abstract

Les modes de réalisation de la présente invention concernent un procédé, un dispositif et un système pour acquérir un service par un terminal de réseau. Le procédé comprend : recevoir, par le terminal de réseau, un premier message pour demander un premier service, le premier message contenant une adresse IP de destination et une adresse IP source; s'il est déterminé que l'adresse IP de destination se trouve dans un premier segment de réseau d'adresse du premier service, transmettre un second message pour demander le service à un réseau de couche supérieure, l'adresse IP source du second message étant la première adresse IP du terminal de réseau; et répondre à la transmission du second message, et recevoir le service demandé transmis par le réseau de couche supérieure. Grâce à la solution technique décrite ci-dessus, un terminal d'utilisateur peut envoyer de multiples messages de service en adoptant une adresse IP, le terminal de réseau interroge une table de routage après avoir reçu les messages et transmet les messages à des serveurs de différents services, acquérant ainsi de multiples services, si bien que le terminal d'utilisateur dans un réseau existant n'a pas besoin d'être remplacé, et les ressources sont économisées.
PCT/CN2013/081191 2013-08-09 2013-08-09 Procédé, dispositif et système pour acquérir un service par un terminal de réseau WO2015018069A1 (fr)

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PCT/CN2013/081191 WO2015018069A1 (fr) 2013-08-09 2013-08-09 Procédé, dispositif et système pour acquérir un service par un terminal de réseau

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