A method and a network device for establishing FlexE path includes a first forwarding node receiving a first path establishment request message sent by a first source node, where the first path establishment request message is used to establish a first FlexE path between the first source node and a first destination node, and the first FlexE path is used to transmit a first service flow; the first forwarding node establishing a second FlexE path between the first forwarding node and a second forwarding node based on the first path establishment request message, and deleting an established third FlexE path between the first forwarding node and the second forwarding node after the second FlexE path is established; and the first forwarding node establishing and storing a correspondence between the first FlexE path and the second FlexE path.

Provided are a method and apparatus for transmitting configuration information, a storage medium and a system. The method for transmitting configuration information includes: mapping a client signal into a predetermined container corresponding to the client signal; encoding configuration information of the predetermined container according to a predetermined format; and sending the optical transport network frame that carries the predetermined container and the encoded configuration information of the predetermined container in the payload area.

A transmission system includes: an optical transmission module capable of modulating a first digital radio signal in order to obtain a first optical signal; an optical reception module capable of receiving a second optical signal and demodulating same in order to obtain a demodulated radio signal; and a digitizing module capable of digitizing the demodulated radio signal in order to obtain a second digital radio signal. The transmission module includes: a module for adding a first management signal to the first digital radio signal, the rate of the first management signal being less than that of the first digital radio signal. The optical digitizing module includes an extraction module capable of extracting a second management signal from the demodulated radio signal, the rate of the second management signal being less than that of the second digital radio signal.

A method and apparatus for performing event-driven diagnostics and/or prognostics of a network behaviour of a hierarchical optical network comprising the steps of recording at least one set of historical multi-level events representing different hierarchy levels of said optical network; mining of machine learned event patterns within the recorded multi-level events; mapping the determined mined event patterns to a multi-level network topology of said optical network and/or to a channel connectivity of channels through said optical network; and matching observed real-time multi-level target events of said optical network with at least one of the previously determined mined event patterns and performing a unified cause and effect analysis of network states and/or network components of said optical network for a recognized matching event pattern using the network topology and/or channel connectivity associated with the matching event pattern.

A method and node are disclosed. In the method, circuitry of a first node generates a link state advertising message including bandwidth information indicative of unreserved number of optical channel data unit containers for a plurality of different types of signals supported by an interface of the first node. The link state advertising message is transmitted from the first node to a plurality of second nodes within a mesh network.

A line module configured to provide a protected transponded service includes a plurality of ports; switch interface circuitry communicatively coupled to a switch module; and interface circuitry communicatively coupled to the plurality of ports and the switch interface circuitry, wherein the interface circuitry includes a cross-point switch between the plurality of ports and the switch interface circuitry; wherein bandwidth of the plurality of ports is greater than bandwidth of the switch interface circuitry to the switch module; and wherein the protected transponded service is configured between the plurality of ports directly via the interface circuitry and is selectively routed to the switch module via the switch interface circuitry for restoration thereof, responsive to a failure.

A transmission system includes: an optical transmission module capable of modulating a first digital radio signal in order to obtain a first optical signal; an optical reception module capable of receiving a second optical signal and demodulating same in order to obtain a demodulated radio signal; and a digitizing module capable of digitizing the demodulated radio signal in order to obtain a second digital radio signal. The transmission module includes: a module for adding a first management signal to the first digital radio signal, the rate of the first management signal being less than that of the first digital radio signal. The optical digitizing module includes an extraction module capable of extracting a second management signal from the demodulated radio signal, the rate of the second management signal being less than that of the second digital radio signal.

A method, device and system for detecting optical signal are provided. The method includes that: an optical signal receiving node receives, from an optical signal sending node, an optical channel signal and the in-band overhead information of the optical channel signal; the optical signal receiving node carries out a misconnection detection on the optical channel signal according to the in-band overhead information and generates corresponding alarm information after determining that there is a misconnection, wherein an OCh TTI and Optical channel signal normal central frequency are carried in the in-band overhead information. The disclosure addresses the problem of how to effectively detect the misconnection of optical fibers after coherent reception technologies, including flexible grid, inverse multiplexing and optical devices, are introduced into related technologies and improves the optical signal receiving accuracy and the error detection and correction capability of a system.

A control device includes an acquisition unit that acquires information from a distributed station that notifies the information related to one or more events occurred within a predetermined time period at a predetermined notification frequency, an information analysis unit that executes analysis processing on the information, a frequency derivation unit that derives an occurrence frequency of the information, a load derivation unit that derives a load of analysis processing of the information, and a frequency control unit that controls the predetermined notification frequency with a frequency lower than the occurrence frequency as an upper limit on the basis of at least one of an analysis result of the information, an occurrence frequency of the information, and a load of analysis processing of the information.

The present disclosure provides an information transmission method, an information transmission device, a communication device and a readable storage medium. The information transmission method includes: obtaining OAM information from an optical network; encapsulating the obtained OAM information to form an OAM frame, the OAM frame including N data frames each having a frame length of L, N varying along with a volume of the OAM information, L being a constant value regardless of the volume of the OAM information; and transmitting the OAM frame. The OAM information is transmitted in a length-constant frame, so it is able to facilitate encoding and decoding of a message, simplifying the processing and reduce the time consumption, and facilitate the extension in accordance with a message content and ensure the extendibility, thereby to solve such problems as complicated processing, being time-consuming, and poor extendibility in the conventional OAM information transmission scheme.