The present invention provides a method for analyzing OMCI (ONT Management Control Interface) packets, comprising: transmitting, by an OLT (Optical Line Transmission), an OMCI packet including multiple settings; receiving, by an ONT (Optical Network Terminal), the OMCI packet; wherein the ONT includes an OMCI protocol analyzer, the OMCI protocol analyzer parse the settings and generates an ER-diagram (Entity Relationship Diagram).

The present disclosure relates to passive optical network (PON) systems, an optical line terminal (OLT), and an optical network unit (ONU). One example PON system includes an OLT and at least two ONUs, and the OLT and the ONUs exchange data on one downstream channel and two upstream channels. The OLT sends downstream data to each ONU on the downstream channel, where the downstream data includes an upstream bandwidth grant which is used to control the ONU to send upstream data. Each ONU receives the downstream data on the downstream channel, and sends the upstream data on a first upstream channel or a second upstream channel based on the upstream bandwidth grant included in the downstream data. The OLT receives, on the first upstream channel and the second upstream channel, the upstream data sent by each ONU.

An OLT comprises a processor configured to: obtain optical powers associated with ONUs, and generate an instruction instructing a transmit order of transmissions based on the optical powers; a transmitter coupled to the processor and configured to transmit the instruction to the ONUs; and a receiver coupled to the processor and configured to receive the transmissions from the ONUs based on the instruction. An apparatus comprises a receiver configured to receive an instruction instructing a transmit order of transmissions based on optical powers associated with ONUs; a processor coupled to the receiver and configured to process the instruction; and a transmitter coupled to the processor and configured to transmit a transmission based on the instruction.

The present disclosure relates to message transmission methods in a PON system. One example method includes sending, by an optical line terminal (OLT), a first message to an unregistered optical network unit (ONU), where the first message includes at least one piece of indication message, and one piece of indication message of the at least one piece of indication message indicates a first power range and a first time range associated with the first power range, and receiving, by the OLT in the first time range, a registration message sent by the ONU, where a downstream receive power of the ONU falls within the first power range.

An OLT comprises a processor configured to generate a first message comprising a first field instructing an ONU to report its data rate capability as at least one of 10 Gb/s, 25 Gb/s, or 50 Gb/s; a transmitter coupled to the processor and configured to transmit the first message to the ONU; and a receiver coupled to the processor and configured to receive a second message from the ONU in response to the first message, the second message comprises a second field indicating the data rate capability. A method comprises generating a first message comprising a first field instructing reporting of a data rate capability as at least one of 10 Gb/s, 25 Gb/s, or 50 Gb/s; transmitting the first message; and receiving a second message in response to the first message, the second message comprises a second field indicating the data rate capability.

An optical device may include a communication interface and processing logic configured to receive a broadcast contention-based allocation from an optical line terminal (OLT), wherein the contention-based allocation is associated with activation of the optical device in an optical network. The processing logic may also be configured to transmit a message in response to the contention-based allocation, wherein the message includes information identifying the optical device and receive, from the OLT, an assignment message or a feedback message in response to the transmitted message. The processing logic may be further configured to execute a retransmission procedure based on the assignment or feedback message indicating that a collision occurred.

A method for multi-rate data interaction in an optical network, a network device, and a non-transitory computer-readable storage medium are disclosed. The method may include: acquiring a rate capability supported by an ONU; and interacting service data via a channel corresponding to the rate according to the rate capability supported by the ONU.

An optical network includes an arrangement of optical nodes. An optical node of the arrangement, and corresponding method, perform optical connectivity discovery and negotiation-less optical fiber continuity verification in the optical network. An overall topology of optical connectivity provisioned for the arrangement is discovered by the optical node based on messages received from a management network communicatively coupling the optical nodes to each other. The optical node synchronizes, temporally and sequentially, with the other optical nodes based on the messages received, assigns fiber of the overall topology, based on a verification sequencing method, to verification slots of a verification sequence, and verifies continuity of fiber according to the verification slots of the verification sequence. The discovery, synchronization, and assignment operations enable the optical node and peer node to perform the optical fiber continuity verification in a symmetric, decentralized, and negotiation-less manner.

Disclosed in embodiments of the present invention are a data transmission method and apparatus, a wireless Access Point (AP), a Passive Optical Network module of an Optical Network Unit (ONU PON), WLAN and PON networking, and a storage medium. The method includes: sending, based on a data transmission request of a Station (STA), inform signaling carrying data packet information to a Passive Optical Network module of an Optical Network Unit (ONU PON), the inform signaling being used for the ONU PON to apply for a corresponding bandwidth from an Optical Line Terminal (OLT) based on the data packet information; and receiving service data from the STA and forwarding the same to the ONU PON, the service data being used to be forwarded to the OLT according to the corresponding bandwidth.

Optical subcarriers may be employed to transmit data in a point-to-multi-point network whereby a hub node including a network switch receives such data from a client and transmits information indicative of such data to multiple leaf or network nodes, where data intended for such leaf node is output. Often the rate at which data is supplied to the hub node is different than the rate at which information indicative of the data is transmitted. Moreover, the client data may have a format that is different than that associated with the transmitted information indicative of the client data. Consistent with the present disclosure, client data is inverse multiplexed to lower data rate streams and then multiplexed to a plurality of inputs, each of which corresponding to a respective optical subcarrier. Information indicative of the data may be allocated to multiple subcarriers, if the a single carrier lacks sufficient capacity or bandwidth to meet the bandwidth requirements of the leaf node. Buffer circuits may also be employed to “shape” or delay the outputs or flows of the multiplexer so that data is fed, for example, to a transmit portion of chip 200b of the network switch at a uniform rate rather than in non-uniform data bursts, which, under certain circumstances, could exceed the capacity of such transmit portion. In a further example, leaf nodes include circuitry for monitoring the amount of received data, and, if such received exceeds a certain threshold, a request is sent from the leaf node to the hub to transmit data at a rate equal to or substantially equal to the received data rate. As a result, symmetric data flows may be achieved whereby the leaf nodes transmit and receive data at the same or substantially the same rate.