The embodiments of the present disclosure relate to the field of communications technologies, and disclose a lossless adjustment method of ODUflex channel bandwidth and ODUflex channel. The lossless adjustment method includes: respectively adjusting, according to bandwidth adjustment indication request information, a time slot occupied by an ODUflex frame in a higher order optical channel data unit at an egress side of each network node on an ODUflex channel; and adjusting, according to rate adjustment indication information, a transmission rate of the ODUflex frame of each network node on the ODUflex channel, to enable the transmission rate of each network node on the ODUflex channel to be unified.

In some examples, a controller for a network includes a path computation module configured for execution by one or more processors to obtain configuration information for at least one point-to-multipoint label switched path (P2MP LSP); obtain, from the network via at least one protocol, network topology information defining a network topology for the network; determine, based on the network topology, a first solution comprising first respective paths through the network for the at least one P2MP LSP; determine, after generating a modified network topology based on the network topology, a second solution comprising second respective paths through the network for the at least one P2MP LSP. The controller also includes a path provisioning module configured for execution by the one or more processors to configure the network with the solution of the first solution and the second solution having the lowest total cost.

Provided are a service flow transmission method and apparatus, a device, and a storage medium. The service flow transmission method includes: acquiring service flows; and performing transmission via different FlexE outgoing interfaces according to priorities of the service flows. By means of determining priorities of service flows, and performing transmission via different FlexE outgoing interfaces according to the priorities of the service flows, mutual interference between service flows can be prevented.

Disclosed herein are methods and systems for routing traffic. One exemplary system includes a muxponder module deployed in an optical network, the muxponder having an optical receiver, a first and second electrical port, a demultiplexer having a built-in digital cross-connect, and a processor accessing a first calculated carrier frequency to assign traffic streams associated with a first service identification code to a first and second host lane of the first electrical port, and a second calculated carrier frequency to assign traffic streams associated with a second service identification code to a third and fourth host lane of the second electrical port, and having logic to control the digital cross-connect to route a first and a second traffic stream to the first electrical port based on the first service identification code, and a third and a fourth traffic stream to the second electrical port based on the second service identification code.

This application discloses a communication method and apparatus, which belong to the communication field and are used for data frame transmission. The method is applied to a transit node of a communication system, and the method includes: receiving a data frame, where the data frame includes a bandwidth exclusive channel number, and the data frame is an optical transport network data frame or a microwave data frame; when the bandwidth exclusive channel number carried in the data frame is a preset bandwidth exclusive channel number, obtaining scheduling information and a sink node address from the data frame; and scheduling the data frame based on the scheduling information, and forwarding the data frame to a sink node indicated by the sink node address. In this application, bandwidth utilization of the bandwidth exclusive channel is improved.