WO2018049613A1 - Procédé, appareil et système de communication de données - Google Patents

Procédé, appareil et système de communication de données Download PDF

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Publication number
WO2018049613A1
WO2018049613A1 PCT/CN2016/099075 CN2016099075W WO2018049613A1 WO 2018049613 A1 WO2018049613 A1 WO 2018049613A1 CN 2016099075 W CN2016099075 W CN 2016099075W WO 2018049613 A1 WO2018049613 A1 WO 2018049613A1
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WIPO (PCT)
Prior art keywords
onu
port
olt
capability set
registration request
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PCT/CN2016/099075
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English (en)
Chinese (zh)
Inventor
高建河
高波
吴徐明
殷锦蓉
曾小飞
付生猛
Original Assignee
华为技术有限公司
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Priority to PCT/CN2016/099075 priority Critical patent/WO2018049613A1/fr
Publication of WO2018049613A1 publication Critical patent/WO2018049613A1/fr

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04J—MULTIPLEX COMMUNICATION
    • H04J14/00—Optical multiplex systems
    • H04J14/02—Wavelength-division multiplex systems

Definitions

  • the present invention relates to the field of optical communication technologies, and in particular, to a data communication method, apparatus, and system.
  • the EPON 100 may include at least one optical line terminal (OLT) 110, an optical distribution network 120 (ODN), and a plurality of optical network units (ONUs) 130.
  • ODN optical line terminal
  • ONUs optical network units
  • an ONU communicates with the OLT through one of its own ports.
  • the OLT successfully receives the registration request message sent by the ONU from the port, the OLT sends the registration request message to the port according to the registration request message.
  • a logical link identifier LLID is assigned to identify the traffic flow in the ONU.
  • an ONU corresponds to a port, so the OLT can identify the service flow sent by the ONU through the port of the registration request message sent.
  • a 50G EPON or 100G EPON system is proposed.
  • the operating rate of each port of the ONU is 25Gbps, and the ONU needs 2 or 4
  • the ports share the 50G or 100G service flow.
  • the current OLT is a management process for the registration of a single-port ONU, even if the OLT follows the existing single-port ONU. After the process is completed, the OLT still cannot identify which registered ports belong to the same ONU, and the OLT cannot implement further management and configuration of the multi-port ONU. That is, the OLT pair in the next-generation PON system.
  • the problem of port management of ONUs with multiple ports needs to be resolved.
  • the embodiment of the present invention provides a data communication method, a related device, and a system, which are used to solve the problem of port management of an OLT to a plurality of port ONUs in a next-generation PON system, so that the OLT recognizes the port of the multi-port ONU, and further The further management and configuration of the ONU is implemented, which greatly simplifies the management process of the ONU and improves the reliability of the system.
  • an embodiment of the present application provides a data communication method, which is applied to a passive optical network system, where the method includes:
  • the optical network unit ONU sends a registration request message, where the registration request message includes: the first port identifier Port1 of the ONU and the first virtual medium intervention control vMAC1 address of the ONU; and the ONU receives the first logical link identifier LLID1
  • the ONU sends a message including capability set information, where the capability set information of the ONU includes: mapping of other port identifiers Port x of the ONU and other vMACx addresses of the ONU, where x is an integer greater than 1 or
  • the message of the capability set information is a registration confirmation message.
  • the ONU after the ONU first completes the registration authentication of the first port by using the first port identified by the first port identifier Port1, the first port is determined as the basic port, and the ONU completes the registration basic.
  • the port reports the capability set information including the mapping relationship between the other port identifiers and other virtual MAC addresses, so that the OLT receives the location under the ONU through the basic port.
  • the OLT establishes at least: an ONU unique identifier (where the LLID1 can be used to uniquely identify the ONU), and a port identifier of each port of the ONU identified by the LLID1 and a correspondence table of virtual MAC addresses, by which the OLT can know
  • an ONU unique identifier where the LLID1 can be used to uniquely identify the ONU
  • a port identifier of each port of the ONU identified by the LLID1 and a correspondence table of virtual MAC addresses by which the OLT can know
  • the information about all ports under the ONU the OLT can know which ports belong to the same ONU through the table, and solve the problem of port management of the OLT to multiple port ONUs in the next-generation PON system, which greatly simplifies the management process of the ONU. Improve the reliability of the system.
  • the capability set information may further include at least one of: a number of ports of the ONU, a port type of the ONU, and a Information on whether other ports are available.
  • the OLT can know whether the ONU supports multiple ports; if the ONU supports multiple ports, how many ports can be supported.
  • the capability set information reported by the ONU to the OLT may further include: a Bit Map bit bitmap of the enabled port.
  • the OLT passes the entries of the foregoing table, so that the OLT further determines whether the ONU is allowed to have a multi-port capability, and which ports of the multi-ports supported by the ONU can be used.
  • the OLT establishes and maintains the table, and the OLT can pass the table. More comprehensive management of ONUs.
  • the method further includes:
  • the ONU sends another registration request message, where the other registration request message includes: the other port identifier Portx of the ONU and the other vMAC address vMACx address of the ONU; the ONU receives the OLT to send the other port assignment Logical link identifier LLIDx; said x Is an integer greater than 1.
  • the ONU sends the mapping between the other port identifiers and other vMAC address information to the OLT, so that the OLT registers the other ports of the ONU through the registration authentication of the other ports of the ONU. And further recording the LLID information corresponding to the other port by the other port, and the OLT further records the information into the table, thereby further improving the information of the table, and the OLT can learn, by using the table, which ports belong to the same ONU, and can also pass the The information recorded in the table further identifies which ports the data stream comes from, and improves the management and configuration of the multi-port ONU, thereby improving the reliability and stability of the system.
  • the method further comprises: the ONU receiving a query message for requesting the capability set information.
  • the ONU is the capability set information of the ONU after receiving the query message that the ONU requests the ONU to report the capability set information of the ONU, and then the ONU receives the message and reports the capability set information of the ONU.
  • the ONU actively reports its capability set as described above. information.
  • the ONU may send the capability set information of the ONU in the registration confirmation message to the OLT by responding to the registration confirmation message of the OLT.
  • an embodiment of the present application provides a data communication method, which is applied to a passive optical network system, where the method includes:
  • the optical line terminal OLT receives the registration request message, where the registration request message includes: the first port identifier Port1 of the ONU and the first virtual medium intervention control vMAC1 address of the ONU;
  • the OLT sends a first logical link identifier LLID1 to the first port of the ONU in response to the registration request message;
  • the OLT receives a message including capability set information, where the capability set information of the ONU includes:
  • the other port of the ONU identifies a mapping of Port x and other vMACx addresses of the ONU, the x is an integer greater than 1 or the capability set query information is a registration confirmation message;
  • the OLT generates a table, where the table includes: LLID1, a mapping relationship between Port1 of the ONU and a vMAC1 address of the ONU, and mappings of other Portx and other vMACx addresses of the ONU.
  • the OLT can obtain information about all ports under the ONU, and the OLT can know which ports belong to the same ONU through the table, and solve the problem of port management of the OLT to multiple port ONUs in the next-generation PON system, greatly It simplifies the process of managing the ONU and improves the reliability of the system.
  • the capability set information may further include at least one of: a number of ports of the ONU, a port type of the ONU, and a Information on whether other ports are available.
  • the OLT can know whether the ONU supports multiple ports; if the ONU supports multiple ports, how many ports can be supported.
  • the capability set information reported by the ONU to the OLT may further include: a Bit Map bit bitmap of the enabled port.
  • the OLT passes the entries of the foregoing table, so that the OLT further determines whether the ONU is allowed to have a multi-port capability, and which ports of the multi-ports supported by the ONU can be used, and the OLT establishes and maintains the table, and the OLT can
  • the table is more comprehensive to manage the ONU.
  • the method further includes:
  • the OLT receives another registration request message, where the other registration request message includes: another port identifier Port x of the ONU and another vMAC address vMACx address of the ONU;
  • the OLT sends a logical link identifier LLIDx assigned to other ports; the x is an integer greater than one.
  • the method further includes:
  • the OLT sends a query message for requesting the capability set information to the ONU. It is also possible that the ONU actively reports its capability set information as described above.
  • an embodiment of the present application provides an optical network unit ONU, where the ONU includes:
  • a first sender configured to send a registration request message, where the registration request message includes: a first port identifier Port1 of the ONU and a first virtual medium intervention control vMAC1 address of the ONU; and a message including capability set information is sent,
  • the capability set information of the ONU includes: mapping of other port identifiers Port x of the ONU and other vMACx addresses of the ONU, where x is an integer greater than 1 or the capability set query information is a registration confirmation message;
  • the first receiver is configured to receive the first logical link identifier LLID1.
  • the first port is determined as a basic port, and the ONU passes the registered basic port.
  • the capability set information including the mapping relationship between the other port identifiers and the other virtual MAC addresses is reported, so that the OLT receives the mapping relationship between all the ports and the virtual MAC address of the ONU through the basic port, where the OLT is configured to complete the registration authentication.
  • the first port is assigned LLID1, which can be used to uniquely identify the ONU.
  • the OLT establishes at least: an ONU unique identifier (where the LLID1 can be used to uniquely identify the ONU), and a port identifier of each port of the ONU identified by the LLID1 and a correspondence table of virtual MAC addresses, by which the OLT can know Information about all ports under the ONU, the OLT can know which ports belong to the same ONU through the table, and solve the OLT to multiple port ONUs in the next generation PON system.
  • the problem of port management greatly simplifies the management process of the ONU and improves the reliability of the system.
  • the capability set information may further include at least one of: information indicating whether the other port is available, the number of ports of the ONU, and The port type of the ONU.
  • the OLT can know whether the ONU supports multiple ports; if the ONU supports multiple ports, how many ports can be supported.
  • the capability set information reported by the ONU to the OLT may further include: a Bit Map bit bitmap of the enabled port.
  • the OLT passes the entries of the foregoing table, so that the OLT further determines whether the ONU is allowed to have a multi-port capability, and which ports of the multi-ports supported by the ONU can be used, and the OLT establishes and maintains the table, and the OLT can
  • the table is more comprehensive to manage the ONU.
  • the first transmitter of the ONU is further configured to send another registration request message, where the other registration request message includes: another port identifier of the ONU, Port x, and other vMAC addresses of the ONU. a vMACx address; the ONU receives a logical link identifier LLIDx sent by the OLT for other ports; the x is an integer greater than 1.
  • the ONU sends the mapping between the other port identifiers and other vMAC address information to the OLT, so that the OLT registers the other ports of the ONU through the registration authentication of the other ports of the ONU.
  • the OLT further records the information into the table, thereby further improving the information of the table, and the OLT can learn, by using the table, which ports belong to the same ONU, and can also pass the The information recorded in the table further identifies which ports the data stream comes from, and improves the management and configuration of the multi-port ONU, thereby improving the reliability and stability of the system.
  • the first receiver of the ONU is further configured to receive, by the ONU, a query message for requesting the capability set information.
  • the ONU is the capability set information of the ONU after receiving the query message that the ONU requests the ONU to report the capability set information of the ONU, and then the ONU receives the message and reports the capability set information of the ONU.
  • the ONU actively reports its capability set as described above. information.
  • the ONU may send the capability set information of the ONU in the registration confirmation message to the OLT by responding to the registration confirmation message of the OLT.
  • an embodiment of the present application provides an optical line terminal OLT, where the OLT includes:
  • a second receiver configured to receive a registration request message, where the registration request message includes: a first port identifier Port1 of the ONU and a first virtual medium intervention control vMAC1 address of the ONU; and receiving a message including capability set information,
  • the capability set information of the ONU includes: mapping of other port identifiers Portx of the ONU and other vMACx addresses of the ONU, where x is an integer greater than 1 or the capability set query information is a registration confirmation message;
  • the processor is configured to: in response to the registration request message, assign a first logical link identifier LLID1 to the first port of the ONU; generate a table, where the table entry includes at least: LLID1, Port1 of the ONU A mapping relationship between the mapping relationship with the vMAC1 address of the ONU and other Portx of the ONU and other vMACx addresses.
  • the OLT can obtain information about all ports under the ONU, and the OLT can know which ports belong to the same ONU through the table, and solve the problem of port management of the OLT to multiple port ONUs in the next-generation PON system, greatly It simplifies the process of managing the ONU and improves the reliability of the system.
  • the energy The force set information may also include at least one of: a number of ports of the ONU, a port type of the ONU, and information indicating whether the other ports are available.
  • the OLT can know whether the ONU supports multiple ports; if the ONU supports multiple ports, how many ports can be supported.
  • the capability set information reported by the ONU to the OLT may further include: a Bit Map bit bitmap of the enabled port.
  • the OLT passes the entries of the foregoing table, so that the OLT further determines whether the ONU is allowed to have a multi-port capability, and which ports of the multi-ports supported by the ONU can be used, and the OLT establishes and maintains the table, and the OLT can
  • the table is more comprehensive to manage the ONU.
  • the second receiver is configured to receive another registration request message, where the other registration request message includes: another port identifier of the ONU, Portx, and other vMAC address vMACx addresses of the ONU;
  • the OLT sends a logical link identifier LLIDx assigned to other ports; the x is an integer greater than one.
  • the second transmitter further sends an inquiry message for requesting the capability set information to the ONU. It is also possible that the ONU actively reports its capability set information as described above.
  • an embodiment of the present application provides a passive optical network system PON, where the system includes: an optical line terminal OLT and an optical network unit ONU, where the OLT is connected to the ONU through an optical distribution network, such as the ONU.
  • an embodiment of the present application further provides a data communication device, where the data communication device package include:
  • a first sending unit configured to send a registration request message, where the registration request message includes: a first port identifier Port1 of the ONU and a first virtual medium intervention control vMAC1 address of the ONU; and sending a message including capability set information,
  • the capability set information of the ONU includes: mapping of other port identifiers Portx of the ONU and other vMACx addresses of the ONU, where x is an integer greater than 1 or the capability set query information is a registration confirmation message;
  • the first receiving unit is configured to receive the first logical link identifier LLID1.
  • the first port is determined as a basic port, and the ONU passes the registered basic port.
  • the capability set information including the mapping relationship between the other port identifiers and the other virtual MAC addresses is reported, so that the OLT receives the mapping relationship between all the ports and the virtual MAC address of the ONU through the basic port, where the OLT is configured to complete the registration authentication.
  • the first port is assigned LLID1, which can be used to uniquely identify the ONU.
  • the OLT establishes at least: an ONU unique identifier (where the LLID1 can be used to uniquely identify the ONU), and a port identifier of each port of the ONU identified by the LLID1 and a correspondence table of virtual MAC addresses, by which the OLT can know
  • an ONU unique identifier where the LLID1 can be used to uniquely identify the ONU
  • a port identifier of each port of the ONU identified by the LLID1 and a correspondence table of virtual MAC addresses by which the OLT can know
  • the information about all ports under the ONU the OLT can know which ports belong to the same ONU through the table, and solve the problem of port management of the OLT to multiple port ONUs in the next-generation PON system, which greatly simplifies the management process of the ONU. Improve the reliability of the system.
  • the capability set information may further include at least one of: information indicating whether the other port is available, the number of ports of the ONU, and The port type of the ONU.
  • the OLT can know whether the ONU supports multiple ports; The ONU supports multiple ports and how many ports can be supported.
  • the capability set information reported by the ONU to the OLT may further include: a Bit Map bit bitmap of the enabled port.
  • the OLT passes the entries of the foregoing table, so that the OLT further determines whether the ONU is allowed to have a multi-port capability, and which ports of the multi-ports supported by the ONU can be used, and the OLT establishes and maintains the table, and the OLT can
  • the table is more comprehensive to manage the ONU.
  • a data communication device comprising:
  • a second receiving unit configured to receive a registration request message, where the registration request message includes: a first port identifier Port1 of the ONU and a first virtual medium intervention control vMAC1 address of the ONU; and receiving a message including capability set information,
  • the capability set information of the ONU includes: mapping of other port identifiers Portx of the ONU and other vMACx addresses of the ONU, where x is an integer greater than 1 or the capability set query information is a registration confirmation message;
  • the processing unit is configured to: in response to the registration request message, assign a first logical link identifier LLID1 to the first port of the ONU; generate a table, where the table includes: LLID1, Port1 of the ONU, and the ONU The mapping relationship between the vMAC1 address and the other Portx of the ONU and other vMACx addresses.
  • the first port is determined as the basic port, and the ONU reports the basic port through registration.
  • the capability set information including the mapping relationship between the port identifier and the other virtual MAC address, so that the OLT receives the mapping relationship between all ports and the virtual MAC address of the ONU through the basic port, where the OLT is configured to complete the registration authentication.
  • the first port is assigned LLID1, and the LLID1 can be used to uniquely identify the ONU.
  • the OLT is established at least Including: the ONU unique identifier (where the LLID1 can be used to uniquely identify the ONU), and the port identifier of each port of the ONU identified by the LLID1 and the correspondence table of the virtual MAC address.
  • the OLT can learn all the ports under the ONU.
  • the OLT can know which ports belong to the same ONU through the table, and solve the problem of port management of the OLT to multiple port ONUs in the next-generation PON system, which greatly simplifies the management process of the ONU and improves the reliability of the system. Sex.
  • the capability set information further includes at least one of: information indicating whether the other port is available, a number of ports of the ONU, and a port type of the ONU.
  • the second receiving unit is further configured to receive and receive another registration request message, where the other registration request message includes: another port identifier of the ONU, Portx, and other vMACs of the ONU. Address vMACx address;
  • the second sending unit is further configured to send a logical link identifier LLIDx allocated to other ports of the ONU; the x is an integer greater than 1.
  • the optical network unit ONU sends a registration request message, where the registration request message includes: a first port identifier Port1 of the ONU and a first virtual medium intervention control vMAC1 address of the ONU; Receiving a first logical link identifier LLID1; the ONU transmitting a message including capability set information, where the capability set information of the ONU includes: mapping of other port identifiers Portx of the ONU and other vMACx addresses of the ONU, The message that x is an integer greater than 1 or the capability set information is a registration confirmation message.
  • the OLT can obtain information about all ports under the ONU, and the OLT can know which ports belong to the same ONU through the table, and solve the problem of port management of the OLT to multiple port ONUs in the next-generation PON system, greatly It simplifies the process of managing the ONU and improves the reliability of the system.
  • FIG. 1 is a schematic diagram of a network architecture of a PON system provided by the prior art
  • FIG. 2 is a schematic diagram of a network architecture of a next-generation EPON system according to an embodiment of the present invention
  • FIG. 3 is a data communication method according to an embodiment of the present invention.
  • FIG. 4 is a port attribute table of an ONU according to an embodiment of the present invention.
  • FIG. 5 is another data communication method according to an embodiment of the present invention.
  • FIG. 6 is another data communication method according to an embodiment of the present invention.
  • FIG. 7 is an extended OAM message format provided by an embodiment of the present invention.
  • FIG. 8 is a field description of an extended OAM message format according to an embodiment of the present invention.
  • FIG. 9 is an extended Opcode format according to an embodiment of the present invention.
  • FIG. 10 is another OAM message format according to an embodiment of the present invention.
  • FIG. 11 is a schematic structural diagram of an ONT according to an embodiment of the present disclosure.
  • FIG. 12 is a schematic structural diagram of another OLT according to an embodiment of the present disclosure.
  • FIG. 13 is a schematic structural diagram of another data communication apparatus according to an embodiment of the present invention.
  • Embodiments of the present invention provide a data communication method and related device and system, which are used to solve the port management problem of an OLT to a multi-port ONU in a next-generation EPON system, and implement an OLT-to-multi-port ONU in a next-generation EPON system.
  • Port management which in turn implements OLT to ONU Further configuration and management greatly improve the reliability of the system.
  • the next-generation EPON system 100 includes an OLT 110, a plurality of ONUs 120, and an Optical Distribution Network (ODN) 130.
  • ODN Optical Distribution Network
  • the OLT 110 includes a message distributor and respective downlink ports.
  • the illustration is given by the message distributor as a demultiplexer DeMultiplexing, which is given as four downlink ports in the example of the downlink port diagram, here given as an example, at least two downlink ports are provided.
  • An electrical signal is generated between the DeMultiplexing and the port, and the DeMultiplexing and the downlink port are both disposed on a board of the OLT, and each of the downlink ports can convert an electrical signal into an optical signal and output through the port.
  • the four downlink ports of the OLT and the multiplexer WDM are connected by a branch fiber, and optical signals are transmitted in each branch fiber.
  • the wavelengths of the optical signals transmitted in the branched fibers may be the same or different. It should be noted that if the WDM is set in the OLT, the downlink ports of the OLT and the WDM are connected by a waveguide. The WDM and the beam splitter 130 are connected by a trunk fiber, and the beam splitter 130 is connected to the WDM of the terminal side through a branch fiber. The WDM is connected to the message reassembler through the uplink ports of the terminal-side device ONU, and the message reassembler is a multiplexer or a multiplexer in the example of FIG. 2, including but not limited to the multiplexer or the multiplexer. Waves.
  • the WDM on the terminal side and each uplink port on the ONU 120 Optical signals are transmitted between the respective branch fibers.
  • the WDM of the terminal is set on the ONU 120
  • the WDM and the ONU 120 are connected by a waveguide for transmitting an optical signal.
  • Each of the uplink ports on the ONU 120 converts the optical signal into an electrical signal, and transmits the signal to Multiplxing to perform packet reassembly.
  • An electrical signal is transmitted between the respective uplink ports and the Multiplxing.
  • the ONU sends the reassembled service flow to the user through each downlink port (not shown in FIG. 2).
  • the network structure diagram of FIG. 2 is described in the following manner: the OLT receives a service flow from the network side, and distributes the service flow through at least two channels through each downlink port, and FIG. 2 gives For example, four channels are respectively transmitted for ⁇ 0- ⁇ 4, wherein the one service stream is split into data packets of variable lengths and transmitted through respective channels.
  • the WDM aggregates the data packets of the respective channels, and transmits them to the WDM of each terminal side through the optical splitter 130, and demultiplexes them to the respective channels ⁇ 0- ⁇ 4 of the respective ONUs 120 by the WDM on the terminal side, and performs datagrams through the respective channels.
  • the transmission of the text finally reorganizes the message through Multiplexing, and sends the reassembled data packet, that is, the service flow, to the user.
  • the above channel can be understood as a wavelength channel, or it can be another channel.
  • the channel can be a logical channel or a physical layer fiber link.
  • the channel can be understood as a logical or physical link from each downlink port of the OLT to each uplink port of the ONU.
  • the network architecture of the above-mentioned next-generation EPON is an example of a 100GEPON architecture, that is, data transmission is performed between the OLT and the ONU through four channels, each channel carrying 25 Gbps data packets, and a total of 100 Gbps data packets can be transmitted. It should be noted that if the OLT and the ONU transmit data through two channels, each channel carries 25 Gbps data packets, and a total of 50 Gbps data packets can be transmitted.
  • the architecture of the above example can also be a 50 G EPON architecture. Here No restrictions.
  • the data packet transmitted between the OLT and the ONU may be Ethernet data or a forward error correction code code word FEC codeword, and the Ethernet data is encapsulated and transmitted in the payload data block of the FEC codeword.
  • the above description is based on the system architecture of 100G EPON.
  • the above system is not limited to 100G EPON, 50G EPON and TWDM-PON (WDM/TDM hybrid passive optical network), or GPON can be applied.
  • a data communication method is provided, as shown in FIG. Applied to the above passive optical network system, the method includes:
  • the optical network unit ONU sends a registration request message, where the registration request message includes: a first port identifier Port1 of the ONU and a first virtual medium intervention control vMAC1 address of the ONU.
  • the ONU registration and certification process is prior art, and follows the GPON, EPON, XGPON or XGEPON, or even 50G EPON, 100G EPON standard regulations or the existing registration certification process, which will not be described here.
  • the ONU has multiple ports, wherein the port may be a physical port or a logical port.
  • the port on which the upstream and downstream wavelengths of the ONU are located, or the port on which the electrical layer of the physical layer is sent and received, or the port on which the optical module with a single wavelength pair is located is called a port. It is a port corresponding to a 25Gbps logical channel.
  • the address information of the port is identified by using a MAC address, where the MAC address includes a virtual MAC address vMAC address, where the vMAC address may be
  • the MAC address can also be a logical MAC address.
  • the first port is determined to be a basic port. It should be noted that the ONU has multiple ports, and the port that can be registered for the first time through the port is the basic port, or the ONU can specify any one of the multiple ports, and the port is registered. After the authentication process, set to the basic port. The OLT will use this basic port to collect information about other ports under the ONU.
  • various messages involved in the following processes may be (Multi-Point Control Protocol, MPCP) messages or operations, management, and maintenance messages (operations).
  • MPCP Multi-Point Control Protocol
  • OAM administration and maintenance
  • PLOAM physical layer OAM
  • vMAC vMAC address
  • the optical line terminal OLT receives the registration request message, where the registration request message includes: a first port identifier (Port ID) Port1 of the ONU and a first virtual medium intervention control vMAC1 address of the ONU.
  • the registration request message includes: a first port identifier (Port ID) Port1 of the ONU and a first virtual medium intervention control vMAC1 address of the ONU.
  • the OLT sends a first logical link identifier LLID1 to the first port of the ONU in response to the registration request message.
  • the ONU receives the first logical link identifier LLID1, and returns a registration confirmation message to the OLT.
  • the OLT receives a response message of the ONU.
  • the OLT locally establishes the first port identifier Port1, the vMAC1 address, and the LLID1.
  • the corresponding relationship between the OLTs can save the corresponding relationship locally.
  • the OLT registers the first port after the authentication is passed as the basic port, and the LLID1 is used to uniquely identify the ONU, so that the ONU can report the capability set information of other ports of the ONU through the basic port, for example, other port identifiers and other virtual MAC addresses. The ability to map information about the relationship set.
  • the ONU sends a message including the capability set information to the OLT, where the capability set information of the ONU includes: mapping of other port identifiers of the ONU, Portx, and other vMACx addresses of the ONU, where the x is greater than An integer of 1.
  • the message of the capability set information may be a registration confirmation message, that is, the ONU actively reports the capability set information to the OLT by using the registration confirmation message; or the OLT may send the query message to the ONU, After requesting the ONU to send the capability set information, the ONU receives the query message and sends the capability set information to the OLT.
  • the ONU reports the capability set information to the OLT through the basic port, that is, the first port.
  • the foregoing capability message may further include at least one of the following: a number of ports of the ONU, a port type of the ONU, and information indicating whether the other port is available.
  • the capability information may further include: unique identification information of the ONU.
  • the OLT generates a table according to the capability information of the ONU, where the table includes: an ONU unique identifier LLID1, a mapping relationship between the port 1 of the ONU and a vMAC1 address of the ONU, and other Portx sums of the ONU. Mapping of other vMACx addresses.
  • the table further includes: a correspondence between Port1 and LLID1.
  • the table further includes: an OLT to enable port mapping of Port1, that is, the OLT sets the port usage status of the Port1.
  • Table 1 is the port attribute table of the ONU maintained by the OLT.
  • the OLT specifies LLID1 to uniquely identify the ONU.
  • the OLT can also specify other LLIDx or vMAC1 or other vMACx to uniquely identify the ONU.
  • the method may further include:
  • the ONU initiates a registration authentication request to the OLT through the other ports of the ONU, and requests the OLT to perform registration authentication on other ports of the ONU.
  • the registration authentication request includes a port number and a vMAC address that the ONU needs to authenticate.
  • S316 The OLT completes the authentication of other ports of the ONU in sequence, and sequentially assigns LLIDs to other ports of the ONU.
  • the ONU sequentially sends a registration response to the OLT.
  • each port of the ONU is registered and authenticated, and each port can perform data communication normally.
  • the OLT further refines the table 1 according to the above-mentioned LLIDx allocated for other ports of the ONU, so as to subsequently configure, maintain and manage the port of the ONU.
  • the OLT adds the mapping of Portx and the allocated LLIDx to the generated table.
  • the OLT can further configure the multi-port enable bit mapping, port number, port type, etc. according to other port information of the ONU, for example, to make the table clearer, more complete, and more convenient.
  • the OLT manages the ports of each ONU.
  • the OLT may also start a timer, and after each timer is registered, the registration confirmation or registration response message is fed back to the OLT before the timer expires. If a port of the ONU does not feed back the registration confirmation or registration response message to the OLT after the timer expires, the port registration failure is considered.
  • the OLT can re-execute the above method flow by registering the port that the ONU fails to register, or the OLT can re-register the ONU, including all ports of the ONU. Register for certification.
  • the following describes the ONU port attribute table maintained by the OLT.
  • FIG. 4 is a table of all the entries of Table 1.
  • the mapping between the unique identifier of the ONU, the port identifier of the ONU, and the vMACx address of the ONU, and the LLID of the ONU are the main entries of the port information for the OLT to identify the multi-port ONU.
  • the port type of the ONU, the number of ports of the ONU, the supported LLID of the ONU, and the ONU multi-port enable bit mapping are optional.
  • ONU unique identifier used to uniquely identify the ONU.
  • ONU port type Used to indicate whether the ONU supports multiple ports or single ports.
  • Number of ports on the ONU Used to indicate the number of ports supported by the ONU. If the ONU is a single-port type in the ONU port type, the number of the ONU ports is 1. If the port type of the ONU is multi-port, the number of ports of the ONU indicates the number of ports supported by the ONU. For example, 2 indicates that the ONU has Two ports, if the rate of each port of the ONU is 25Gbps, the ONU can transmit 50G data stream.
  • Each port vMAC address is used to indicate the MAC address information of each port supported by the ONU.
  • the MAC address here may be a logical MAC address or a physical MAC address.
  • the vMAC addresses corresponding to the ports of the ONU may be the same or different. Generally, the vMAC address corresponding to each port of the ONU is different, and can be used to identify the address of the port.
  • Port corresponding LLID used to indicate the LLID assigned by each port of the ONU.
  • the OLT can assign an LLID to the ONU to identify the ONU. It can also assign multiple LLIDs to the ONU. Different ports correspond to different LLIDs.
  • the ONU LLID is used to indicate whether the multi-LLID supported by the ONU or the single LLID is supported. If the ONU supports multiple LLIDs, the OLT Each port of the ONU is assigned a different LLID, and one of the LLIDs can be specified to uniquely identify the ONU. If the ONU supports a single LLID, the OLT allocates an LLID to the multi-port of the ONU, and the LLID is used to uniquely identify the ONU, but each port of the ONU may also be assigned a different LLID.
  • the multi-port enable flag is used to identify the multi-port enable status of the ONU. That is, if the multi-port enable flag value is 1, the corresponding port can be used. A value of 0 indicates that the corresponding port is forbidden to use.
  • OLT For example: 3 ONUs are connected to one OLT: ONU1, ONU2, ONU3, and ONU4.
  • ONU2 Taking ONU2 as an example, the above data communication method is as follows:
  • the ONU2 sends a registration request to the OLT through the port port1, where the registration request message includes: the first port identifier ID1: port1 of the ONU and the first virtual media intervention control vMAC1 address of the ONU: vMAC1.
  • the OLT receives a registration request message, where the registration request message includes: Port1 and vMAC1.
  • the OLT sends a logical link identifier LLID2 to the port Port1 of the ONU2 in response to the registration request message.
  • the ONU2 receives the logical link identifier LLID2 and returns a registration confirmation message to the OLT.
  • Port1 is the basic port of the ONU2.
  • the OLT may allocate different and globally unique LLIDs for different ports of the same ONU; or assign the same LLID to different ports of the same ONU, and the ONU internally distinguishes them by other means, for example, in Table 1, ONU2 Supporting a single LLID, the OLT assigns an LLID2 to the ONU.
  • the LLID2 is used to uniquely identify the ONU2, and the ONU2 still assigns an LLID to each port. Used to distinguish the data flow of each port. For example, after the registration authentication is completed, the OLT allocates LLID2 to the port1. After the port 2 of the ONU completes the registration authentication, the OLT allocates LLID3 to the port 2.
  • the OLT allocates multiple LLIDs for multiple ports of the ONU, and specifies one LLID to uniquely identify the ONU.
  • the port that passes the first-time registration authentication is the basic port, and the LLID assigned to the basic port is used to uniquely identify the LLID of the ONU.
  • the ONU3 supports multiple LLIDs.
  • the OLT allocates four LLIDs to the ONU.
  • the port that the ONU first authenticates is Port1.
  • the OLT assigns LLID4 to Port1.
  • the LLID4 is used to uniquely identify the ONU3.
  • the remaining LLIDs are used for other ports of the ONU. Configuration.
  • the port1 of the ONU2 is registered and authenticated.
  • the OLT can record the port attribute entry of the ONU2: Port 1, vMAC1, and LLID2. Further, the OLT can also perform an enable bit mapping on the already registered Port1, and configure Port1 to be in an enabled state, that is, data can be sent through the port.
  • the OLT can record the related entries of the port attribute table of Port1 of the ONU2, and can save the entries of the table locally or upload to other servers, or save the entries.
  • the OLT can specify the port 1 of the multi-port of the ONU 2 that is the first to complete the registration authentication as the basic port, and complete the collection of the capability set information of the other ports of the subsequent ONU 2 through the basic port; If a port is registered for authentication, the port that is registered for authentication is the basic port.
  • the ONU can report the capability set information of other ports on the ONU through the basic port. For example, the mapping between other port IDs and other virtual MAC addresses. The ability to set information and so on.
  • the ONU2 sends a message including the capability set information to the OLT through the basic port Port1, where the capability set information of the ONU includes: other port identifiers of the ONU, Portx, and the Mapping of other vMACx addresses of the ONU, the x being an integer greater than one.
  • the capability set information sent by the ONU in step S508 may also be sent to the OLT in the registration confirmation message of S506.
  • the OLT may send an inquiry message to the ONU2, and request the ONU2 to send the capability set information, ONU2. Receiving the query message, sending capability set information to the OLT.
  • the OLT generates Table 1 based on the capability set information of the ONU 2.
  • the capability set information reported by the ONU2 may include: the second port identifier Port2 of the ONU2 and the corresponding MAC address vMAC2, and the OLT records port attribute information of Port1 and Port2 of the ONU2.
  • the ONU2 has two ports, and supports multiple ports, Port1.
  • Correspondence between vMAC1 and LLID2 ONU2 supports a single LLID.
  • LLID1 is a global identifier assigned by the OLT to the ONU2. It is used to uniquely identify the ONU2, and the OLT configuration port1 and port2 are both enabled and can be used to send and receive data streams.
  • the ONU2 sends a registration request message to the OLT through the port2, where the registration request message includes: Port2 and vMAC2.
  • the OLT receives the registration request message of the ONU2, allocates the LLID2 to the Port2 of the ONU2, and sends it to the ONU2.
  • the ONU2 receives the LLID2 allocated by the OLT and responds to the OLT.
  • the OLT receives the response message of the ONU2, further improves the information of Table 1 according to the information such as Port2, vMAC2, and LLID3 of the ONU2, and further knows the information of each port of the ONU through the table. For example, the OLT further records the correspondence between Port2, vMAC2, and LLID3. , ONU port type, port number, ONU multi-port enable bit mapping and other information.
  • the OLT can know the port information of the multi-port ONU connected by the OLT, and then receive the data stream sent from the ONU2, and the number stream is identified by LLID2, and the OLT is based on
  • the correspondence between LLID2 and Port1 in Table 1 indicates that the data stream is from the Port1 port of ONU2 and the MAC address corresponding to the port is vMAC1.
  • the OLT can obtain information about all ports under the ONU, and the OLT can know which ports belong to the same ONU through the table, and solve the problem of port management of the OLT to multiple port ONUs in the next-generation PON system, greatly It simplifies the process of managing the ONU and improves the reliability of the system.
  • the present invention also provides a data communication method.
  • the data communication method is not only applicable to the failure of the basic port of the ONU, but also the port of the ONU is a normal port, and the basic port is not required to be specified.
  • the difference from the above embodiment is that the OLT no longer specifies a basic port, and multiple ports of the ONU have equal status, and each port can be registered autonomously, that is, in order for the OLT to distinguish which ports belong to the same ONU, each port
  • the report information includes the port number of all the ports on the ONU to identify the mapping between the port and the vMAC address information, and the physical MAC address used to uniquely identify the ONU.
  • the OLT authenticates each port of the ONU according to the information reported by the ONU, and generates
  • the structure of Table 1 in FIG. 4 is uniquely different from Table 1 in that the ONU is uniquely identified as the physical address of the ONU or the specified vMAC address for uniquely identifying the ONU, rather than the LLID of the ONU.
  • the table in which the ONU uniquely identifies the entry in Table 1 is replaced with the physical address of the ONU or the vMAC of the ONU can be used to describe the table generated by the OLT of this embodiment.
  • the unique identifier of the ONU can be extended to the information that uniquely identifies the ONU, such as the sequence number (SN) of the ONU.
  • the physical MAC address of the ONU may also include the virtual MAC address of the ONU, or may be different from the vMAC address. If the physical MAC address of the ONU includes the virtual MAC address of the ONU, the entry uniquely identified by the ONU in Table 1 of the OLT needs to specify any vMAC to uniquely identify the ONU; if the physical MAC address of the ONU and the vMAC of the ONU Differently, the ONU unique identifier is identified by the physical MAC address of the ONU.
  • an embodiment of the present invention further provides another method for data communication. As shown in FIG. 6, the method is also applied to the foregoing PON system, where the method includes:
  • the ONU sends a first registration request message to the OLT, where the first registration request includes: a physical MAC address of the ONU, a first mapping relationship, and other mapping relationships.
  • the first mapping relationship includes: the first port identifier Port1 of the ONU and the first virtual MAC address vMAC1 of the ONU; the other mapping relationship includes: other port identifiers of the ONU and other virtual MAC addresses vMACx of the ONU , the x is an integer greater than one.
  • the ONU sends a mapping of Port 1 and vMAC1 and a mapping of Portx and vMACx through the first port.
  • the OLT receives the first registration request sent by the ONU, allocates LLID1 to the ONU, and sends the LLID1 to the ONU.
  • the ONU receives the LLID1 allocated by the OLT, and returns a registration response to the OLT.
  • the OLT generates a table according to the registration request of the ONU, where the table includes: the ONU uniquely identifies the MAC1, the mapping relationship between the Port1 of the ONU and the vMAC1 address of the ONU, and other Portx and other vMACx of the ONU.
  • the mapping relationship of addresses includes: the ONU uniquely identifies the MAC1, the mapping relationship between the Port1 of the ONU and the vMAC1 address of the ONU, and other Portx and other vMACx of the ONU.
  • the table further includes: a correspondence between Port1 and LLID1.
  • the table further includes: an OLT pair port mapping map of the port 1, that is, an OLT pair The Port1 port usage status is set.
  • Table 1 is the port attribute table of the ONU maintained by the OLT.
  • the OLT specifies LLID1 to uniquely identify the ONU.
  • the OLT can also specify other LLIDx or vMAC1 or other vMACx to uniquely identify the ONU.
  • the ONU repeatedly performs 2 n -1 steps S600-S604 until all ports under the ONU complete registration, where n is an integer from 2 to 10.
  • the OLT further refines the table 1 according to the above-mentioned LLIDx allocated for other ports of the ONU, so as to subsequently configure, maintain and manage the port of the ONU.
  • the OLT adds the mapping of Portx and the allocated LLIDx to the generated table.
  • the OLT can further configure the multi-port enable bit mapping, port number, port type, etc. according to other port information of the ONU, for example, to make the table clearer, more complete, and more convenient.
  • the OLT manages the ports of each ONU.
  • the OLT may also start a timer, and after each timer is registered, the registration confirmation or registration response message is fed back to the OLT before the timer expires. If a port of the ONU does not feed back the registration confirmation or registration response message to the OLT after the timer expires, the port registration failure is considered.
  • the OLT can re-execute the above method flow by registering the port on which the ONU fails to register, or the OLT can cause the ONU to re-register, and all ports of the ONU are re-registered and authenticated.
  • the table generated by the OLT in this embodiment is an ONU port attribute table, and the difference between the information of the table and the table 1 has been described above, and the same points and differences have been described, and details are not described herein again.
  • the OLT of the foregoing embodiment of the present invention does not need to specify a basic port for the ONU, and is therefore applicable to various ONUs.
  • the ONU registers the report, the related attribute information of the port that is reported and reported is reported and reported.
  • the OLT can obtain information about all ports under the ONU.
  • the OLT can know which ports belong to the same ONU through the table, and solve the OLT in the next generation PON system.
  • the problem of port management for multiple port ONUs greatly simplifies the management process of the ONU and improves the reliability of the system.
  • the various message formats mentioned in all the foregoing embodiments may be specifically as follows: may be implemented by extending an OAM message, and the specific OAM message format is as described in the fields of the OAM message in FIG. 7 and FIG. 8.
  • the format of the OAM message is based on the format of the existing OAM message.
  • the DA, SA, and length are all in the format of the existing OAM message.
  • the description of the field, here focuses on the new Code field and Data field.
  • the organization uniqueness identifier OUI 3 bytes, which is the organization uniqueness identifier OUI.
  • the value should be configurable, and China Telecom's OUI is tentatively set to 0x111111;
  • Extended opcode (Ext.Opcode): used to indicate the type of operation of the extension, the specific values are shown in the following table;
  • Payload Represents the content of a specific data payload.
  • the message format of the capability set information reported by the ONU in the OAM packet is as shown in Table 4 of FIG.
  • the embodiment of the present invention further provides an embodiment of various components for performing the foregoing communication method, specifically:
  • FIG. 11 is an optical network unit ONU, where the ONU includes:
  • the first transmitter 1100 is configured to send a registration request message, where the registration request message includes: a first port identifier Por1 of the ONU and a first virtual medium intervention control vMAC1 address of the ONU; and a message including capability set information is sent.
  • the capability set information of the ONU includes: mapping of other port identifiers Portx of the ONU and other vMACx addresses of the ONU, where x is an integer greater than 1 or the capability set query information is a registration confirmation message;
  • the first receiver 1102 is configured to receive the first logical link identifier LLID1.
  • the capability set information further includes at least one of: information indicating whether the other port is available, a number of ports of the ONU, and a port type of the ONU.
  • the processing of the ONU For the processing of the ONU, reference may be made to the processing of the embodiment of the present invention, and the processing of the corresponding method is not performed in the foregoing embodiment.
  • the description of the method embodiment relates to the sending side or receiving of the ONU.
  • the actions of the side can be performed by the transmitter of the ONU and the receiver of the ONU.
  • Even the processing functions other than the sending or receiving functions of the ONU can be completed by the processor of the ONU, for example, the MAC chip of the ONU.
  • the processor of the ONU for example, the MAC chip of the ONU.
  • the location of the above ONU in the system can be referred to the system architecture diagram of FIG. 2.
  • the OLT can obtain information about all ports under the ONU, and the OLT can know which ports belong to the same ONU through the table, and solve the problem of port management of the OLT to multiple port ONUs in the next-generation PON system, greatly It simplifies the process of managing the ONU and improves the reliability of the system.
  • An embodiment of the present invention further provides an optical line terminal OLT.
  • the OLT includes:
  • the second receiver 1200 is configured to receive a registration request message, where the registration request message includes: the first port identifier Port1 of the ONU and the first virtual media intervention control vMAC1 address of the ONU; and the message that includes the capability set information is received.
  • the capability set information of the ONU includes: mapping of other port identifiers Portx of the ONU and other vMACx addresses of the ONU, where x is an integer greater than 1 or the capability set query information is a registration confirmation message;
  • the processor 1202 is configured to: in response to the registration request message, assign a first logical link identifier LLID1 to the first port of the ONU; generate a table, where the table entry includes at least: LLID1, the ONU The mapping relationship between ID1 and the vMAC1 address of the ONU and other IDXs of the ONU and other vMACx addresses.
  • the capability set information further includes at least one of: information indicating whether the other port is available, a number of ports of the ONU, and a port type of the ONU.
  • the second receiver 1200 is configured to receive another registration request message, where the other registration request message includes: mapping of another port identifier Portx of the ONU and other vMAC address vMACx addresses of the ONU;
  • the OLT further includes a second transmitter 1204 for transmitting a logical link identifier LLIDx allocated to other ports of the ONU; the x is an integer greater than one.
  • the processing flow of the OLT may be referred to the processing of the embodiment of the present invention.
  • the OLT is not divided into specific hardware.
  • the description of the method embodiment relates to the sending or receiving of the OLT.
  • the actions of the side can be performed by the transmitter of the OLT and the receiver of the OLT.
  • Even the processing functions other than the sending or receiving functions of the OLT can be completed by the processor of the OLT, such as the MAC chip of the OLT.
  • the processor of the OLT such as the MAC chip of the OLT.
  • the location of the above OLT in the system can refer to the system architecture diagram of FIG. 2.
  • the OLT can obtain information about all ports under the ONU, and the OLT can know which ports belong to the same ONU through the table, and solve the problem of port management of the OLT to multiple port ONUs in the next-generation PON system, greatly It simplifies the process of managing the ONU and improves the reliability of the system.
  • the embodiment of the present invention further provides a passive optical network system PON.
  • the system includes: an optical line terminal OLT and an optical network unit ONU, where the OLT is connected to the ONU through an optical distribution network.
  • OLT For details about the specific structure of the ONU and the functions performed by the respective modules, refer to FIG. 11 and the ONUs described in the corresponding embodiments.
  • OLT refer to the OLT as described in FIG. 12 and the corresponding embodiments.
  • the OLT can obtain information about all ports under the ONU, and the OLT can know which ports belong to the same ONU through the table, and solve the problem of port management of the OLT to multiple port ONUs in the next-generation PON system, greatly It simplifies the process of managing the ONU and improves the reliability of the system.
  • An embodiment of the present invention further provides a data communication device, where the data communication device includes:
  • a first sending unit configured to send a registration request message, where the registration request message includes: The first port of the ONU identifies Port1 and the first virtual medium of the ONU to intervene to control the vMAC1 address; and sends a message including the capability set information, where the capability set information of the ONU includes: the other port identifier IDx of the ONU and the ONU Mapping of other vMACx addresses, the x is an integer greater than 1 or the capability set query information is a registration confirmation message;
  • the first receiving unit is configured to receive the first logical link identifier LLID1.
  • the capability set information further includes at least one of: information indicating whether the other port is available, a number of ports of the ONU, and a port type of the ONU.
  • the data communication device may be an ONU 120 or an Optical Network Terminal (ONT) in the system FIG. 2 or other terminal-side devices.
  • ONT Optical Network Terminal
  • the processing flow of the foregoing data communication device may refer to the processes in FIG. 2-6 and the corresponding method embodiments, where the specific hardware division of the data communication device is not performed in the foregoing embodiment, where the data communication is involved according to the description of the method embodiment.
  • the actions of the transmitting side or the receiving side of the device can be performed by its transmitter and receiver, and even other processing functions other than the transmitting or receiving functions of the data communication device can pass through its processor, such as a MAC chip.
  • a MAC chip such as a MAC chip
  • the data communication device can learn related information of all ports under the data communication device through the table, and the OLT can know which ports belong to the same ONU through the table, and solve the port management of the OLT to multiple port ONUs in the next generation PON system.
  • the problem greatly simplifies the management process of the ONU and improves the reliability of the system.
  • An embodiment of the present invention further provides a data communication device, where the data communication device includes:
  • a second receiving unit configured to receive a registration request message, where the registration request message includes: a first port identifier Port1 of the ONU and a first virtual media intervention control vMAC1 of the ONU
  • the registration request message includes: a first port identifier Port1 of the ONU and a first virtual media intervention control vMAC1 of the ONU
  • Receiving a message including capability set information, the capability set information of the ONU includes: mapping of other port identifiers Portx of the ONU and other vMACx addresses of the ONU, the x being an integer greater than 1 or the capability
  • the set query information is a registration confirmation message;
  • a processing unit configured to: in response to the registration request message, assign a first logical link identifier LLID1 to the first port of the ONU; generate a table, where the table includes: LLID1, ID1 of the ONU, and the ONU The mapping relationship between the vMAC1 address and the other IDx of the ONU and other vMACx addresses.
  • the capability set information further includes at least one of: information indicating whether the other port is available, a number of ports of the ONU, and a port type of the ONU.
  • the second receiving unit is further configured to receive and receive another registration request message, where the other registration request message includes: another port identifier IDx of the ONU and another vMAC address vMACx address of the ONU.
  • the second sending unit is further configured to send a logical link identifier LLIDx allocated to other ports of the ONU; the x is an integer greater than 1.
  • the data communication device may be an OLT 110 or a central office device as in the system FIG.
  • the data communication device can obtain information about all ports under the ONU through the table, and the OLT can know which ports belong to the same ONU through the table, and solve the problem that the OLT manages ports of multiple port ONUs in the next-generation PON system. It greatly simplifies the management process of the ONU and improves the reliability of the system.
  • the embodiment of the invention further provides a data communication device, as shown in FIG. 13, the data communication
  • the device includes a processor, a memory, and a bus system, the processor and the memory being coupled by the bus system, the memory for storing instructions, the processor for executing instructions stored by the memory,
  • the processor is configured to: according to the first port identifier Port1 of the ONU included in the received registration request message, and the first virtual medium of the ONU to control the vMAC1 address; and the capability set information of the ONU includes:
  • the other port of the ONU identifies a mapping of Portx and other vMACx addresses of the ONU, the x is an integer greater than 1 or the capability set query information is a registration confirmation message and the first port is assigned to the ONU.
  • the logical link identifier LLID1 generates a table, and the table includes: LLID1, a mapping relationship between Port1 of the ONU and a vMAC1 address of the ONU, and mappings between other Portxs of the ONU and other vMACx addresses.
  • the data communication device may be an OLT 110 or a central office device as in the system FIG.
  • the embodiment of the present invention further provides another ONU corresponding to FIG. 6 and the corresponding embodiment, where the ONU includes:
  • the sender is configured to send a first registration request message to the OLT, where the first registration request includes: a physical MAC address of the ONU, a first mapping relationship, and other mapping relationships.
  • the first mapping relationship includes: the first port identifier Port1 of the ONU and the first virtual MAC address vMAC1 of the ONU; the other mapping relationship includes: other port identifiers of the ONU and other virtual MAC addresses vMACx of the ONU , the x is an integer greater than one.
  • the ONU sends a mapping of Port 1 and vMAC1 and a mapping of Portx and vMACx through the first port.
  • the receiver is configured to receive the LLID1 allocated by the OLT, and return a registration response to the OLT.
  • the ONU further includes a processor for repeatedly performing 2 n -1 steps S600-S604 until all ports under the ONU complete registration, where n is an integer from 2 to 10.
  • the OLT further refines the table 1 according to the above-mentioned LLIDx allocated for other ports of the ONU, so as to subsequently configure, maintain and manage the port of the ONU.
  • the processing of the ONU For the processing of the ONU, reference may be made to the processing of the embodiment of the present invention, and the processing of the corresponding method is not performed in the foregoing embodiment.
  • the description of the method embodiment relates to the sending side or receiving of the ONU.
  • the actions of the side can be performed by the transmitter of the ONU and the receiver of the ONU.
  • Even the processing functions other than the sending or receiving functions of the ONU can be completed by the processor of the ONU, for example, the MAC chip of the ONU.
  • the processor of the ONU for example, the MAC chip of the ONU.
  • the location of the above ONU in the system can be referred to the system architecture diagram of FIG. 2.
  • the OLT can obtain information about all ports under the ONU, and the OLT can know which ports belong to the same ONU through the table, and solve the problem of port management of the OLT to multiple port ONUs in the next-generation PON system, greatly It simplifies the process of managing the ONU and improves the reliability of the system.
  • An embodiment of the present invention further provides an OLT, where the OLT includes:
  • a receiver configured to receive a first registration request sent by the ONU
  • a processor configured to allocate LLID1 to the ONU; the OLT generates a table according to the registration request of the ONU, where the table includes: the ONU uniquely identifies the MAC1, the Port1 of the ONU, and the ONU The mapping relationship between the vMAC1 address and the other Portx and other vMACx addresses of the ONU
  • a transmitter configured to send the LLID1 to the ONU.
  • the table further includes: a correspondence between Port1 and LLID1.
  • the table further includes: an OLT to enable port mapping of Port1, that is, the OLT sets the port usage status of the Port1.
  • Table 1 is the port attribute table of the ONU maintained by the OLT.
  • the OLT specifies LLID1 to uniquely identify the ONU.
  • the OLT can also specify other LLIDx or vMAC1 or other vMACx to uniquely identify the ONU.
  • the OLT further refines the table 1 according to the above-mentioned LLIDx allocated for other ports of the ONU, so as to subsequently configure, maintain and manage the port of the ONU.
  • the OLT adds the mapping of Portx and the allocated LLIDx to the generated table.
  • the OLT can further configure the multi-port enable bit mapping, port number, port type, etc. according to other port information of the ONU, for example, to make the table clearer, more complete, and more convenient.
  • the OLT manages the ports of each ONU.
  • the OLT may also start a timer, and after each timer is registered, the registration confirmation or registration response message is fed back to the OLT before the timer expires. If a port of the ONU does not feed back the registration confirmation or registration response message to the OLT after the timer expires, the port registration failure is considered.
  • the OLT can re-execute the above method flow by registering the port on which the ONU fails to register, or the OLT can cause the ONU to re-register, and all ports of the ONU are re-registered and authenticated.
  • the processing flow of the foregoing OLT may refer to the processing of FIG. 2-6 and the corresponding method embodiment,
  • the foregoing embodiment does not perform specific hardware partitioning on the OLT.
  • the actions of the sending side or the receiving side of the OLT may be performed by the transmitter of the OLT and the receiver of the OLT, and even
  • the processing functions of the OLT, except for the sending or receiving functions, can be performed by the processor of the OLT, such as the MAC chip of the OLT.
  • the processor of the OLT such as the MAC chip of the OLT.
  • the location of the above OLT in the system can refer to the system architecture diagram of FIG. 2.
  • the OLT can obtain information about all ports under the ONU, and the OLT can know which ports belong to the same ONU through the table, and solve the problem of port management of the OLT to multiple port ONUs in the next-generation PON system, greatly It simplifies the process of managing the ONU and improves the reliability of the system.
  • the embodiment of the present invention further provides a passive optical network system PON.
  • the system includes: an optical line terminal OLT and an optical network unit ONU, and the OLT passes the optical distribution network.
  • OLT passes the optical distribution network.
  • the specific structure of the ONU and the functions performed by the respective modules refer to the description of the embodiment of the ONU.
  • OLT refer to the description of the OLT related embodiment.
  • the OLT can obtain information about all ports under the ONU, and the OLT can know which ports belong to the same ONU through the table, and solve the problem of port management of the OLT to multiple port ONUs in the next-generation PON system, greatly It simplifies the process of managing the ONU and improves the reliability of the system.
  • the table generated by the OLT in this embodiment is an ONU port attribute table, and the difference between the information of the table and the table 1 has been described above, and the same points and differences have been described, and details are not described herein again.
  • the above embodiment of the present invention provides that the OLT does not need to specify a basic port for the ONU, and therefore It is used by various ONUs to report the related attribute information of the port that is registered and reported by the ONU every time the registration is reported. It also needs to report the attribute information of the port other than the port of the ONU.
  • the OLT can Knowing the information about all ports under the ONU, the OLT can know which ports belong to the same ONU through the table, and solve the problem of port management of the OLT to multiple port ONUs in the next-generation PON system, which greatly simplifies the management of the ONU. The process improves the reliability of the system.
  • the disclosed apparatus may be implemented in other ways.
  • the device embodiments described above are merely illustrative.
  • the division of the above units is only a logical function division. In actual implementation, there may be another division manner. For example, multiple units or components may be combined or integrated. Go to another system, or some features can be ignored or not executed.
  • the mutual coupling or direct coupling or communication connection shown or discussed may be an indirect coupling or communication connection through some interface, device or unit, and may be electrical or otherwise.
  • the units described above as separate components may or may not be physically separated, and the components displayed as units may or may not be physical units, ie may be located in one place, or It can also be distributed to multiple network elements. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution of the embodiment.
  • each functional unit in each embodiment of the present invention may be integrated into one processing unit, or each unit may exist physically separately, or two or more units may be integrated into one unit.
  • the above integrated unit can be implemented in the form of hardware or in the form of a software functional unit.
  • the above-described integrated unit if implemented in the form of a software functional unit and sold or used as a stand-alone product, may be stored in a computer readable storage medium.
  • the instructions include a plurality of instructions for causing a computer device (which may be a personal computer, server or network device, etc., and in particular a processor in a computer device) to perform all or part of the steps of the above-described methods of various embodiments of the present invention.
  • the foregoing storage medium may include: a U disk, a mobile hard disk, a magnetic disk, an optical disk, a read-only memory (ROM), or a random access memory (RAM), and the like. The medium of the code.

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  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Small-Scale Networks (AREA)

Abstract

La présente invention concerne un procédé, un appareil et un système de communication conçus pour un réseau optique passif. Le procédé comprend les étapes suivantes : une ONU envoie un message de demande d'enregistrement, le message de demande d'enregistrement comprenant une première identification de port (Port 1) de l'ONU et une première adresse de contrôle d'accès au support virtuel (vMAC 1) de l'ONU; l'ONU reçoit une première identification de liaison logique (LLID 1); l'ONU envoie un message comprenant des informations d'ensemble de capacités, les informations d'ensemble de capacités de l'ONU comprenant d'autres identifications de port (Port x) de l'ONU et la mise en correspondance d'autres adresses vMAC x de l'ONU, x étant un nombre entier supérieur à 1, ou le message des informations d'ensemble de capacités étant un message d'accusé de réception d'enregistrement. Le problème de gestion de ports d'une ONU multiport par un OLT dans un système PON de prochaine génération est résolu, ce qui permet de réaliser une gestion et une configuration supplémentaires de l'ONU par l'intermédiaire de la reconnaissance de ports de l'ONU multiport par l'OLT, ce qui simplifie considérablement le processus de gestion de l'ONU et améliore la fiabilité du système.
PCT/CN2016/099075 2016-09-14 2016-09-14 Procédé, appareil et système de communication de données WO2018049613A1 (fr)

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