A method for switching data signals transmitted over a transport network is disclosed. The method comprises receiving a plurality of input data signals of a first signal type wherein the plurality of data signals of the first signal type comprises data signals exchanged between a Radio Equipment and a Radio Equipment Controller and aggregating the plurality of input data signals into an aggregated first data signal. The method also comprises receiving a second data signal of a second signal type different to the first signal type, and multiplexing the first data signal with the second data signal to form a combined data signal. The method further comprises forwarding the combined data signal to the transport network. Multiplexing the first data signal with the second data signal comprises, for a frame of the combined data signal, allocating the first data signal to a portion of the frame reserved for the first data signal, and allocating the second data signal to a remaining portion of the frame.

A method and an apparatus for sending a service, a method and an apparatus for receiving a service, and a network system. The method for sending a service includes obtaining, by a transmit end device, an original data stream, inserting a quantity mark k into the original data stream, to generate a first data stream, where the quantity mark k is a quantity of first data units in the original data stream, and k is greater than or equal to 0, and sending the first data stream.

Methods and systems of a disaggregated integrated synchronous optical network (SONET) and optical transport network (OTN) switching system that includes using plug-in universal (PIU) modules for OTN to Ethernet transceiving, SONET PIU modules for Ethernet to SONET transceiving, and an Ethernet fabric as a switching core are disclosed. An OTN over Ethernet module in each of the PIU modules and an Ethernet over SONET module in each of the SONET PIU modules may enable various SONET and OTN functionality to be realized using the Ethernet fabric which may include multiple Ethernet switches.

A method for switching data signals transmitted over a transport network is disclosed. The method comprises receiving a plurality of input data signals of a first signal type wherein the plurality of data signals of the first signal type comprises data signals exchanged between a Radio Equipment and a Radio Equipment Controller and aggregating the plurality of input data signals into an aggregated first data signal. The method also comprises receiving a second data signal of a second signal type different to the first signal type, and multiplexing the first data signal with the second data signal to form a combined data signal. The method further comprises forwarding the combined data signal to the transport network. Multiplexing the first data signal with the second data signal comprises, for a frame of the combined data signal, allocating the first data signal to a portion of the frame reserved for the first data signal, and allocating the second data signal to a remaining portion of the frame.

A data transmission method and apparatus, a network device, and a storage medium are provided. In the method, a first network device determines whether there is a packet to be sent at a switching moment of a current time window; and the first network device sends a preset identification packet to a second network device in a case where there is no packet to be sent at the switching moment of the current time window, wherein the preset identification packet carries a window value of the current time window, and the window value is used for enabling the second network device to determine switching moments of different time windows of the first network device.

Disclosed may be a repair information storage circuit. The repair information storage circuit may include a fuse set. A plurality of fuses included in the fuse set may be allocated to the respective bits of preliminary repair information and defect check information. The fuse allocated to the defect check information may be ruptured to store information on whether the fuse set has a defect.

In general, techniques are described for extending routing protocol advertisements to include respective attributes of constituent links of an aggregation group. In one example, a network device includes a management interface that receives configuration information that specifies first and second constituent links for a layer two (L2) aggregated interface. The first and second constituent links are physical links connected to respective physical interfaces of forwarding units of the network device. A routing protocol daemon of the control unit generates a link state message that specifies layer three (L3) routing information associated with the aggregated interface and further specifies an attribute of the first constituent link and an attribute of the second constituent link. The routing protocol daemon sends the link state message from the network device to another network device of the network in accordance with a routing protocol.

A method for switching data signals transmitted over a transport network is disclosed. The method comprises receiving a plurality of input data signals of a first signal type wherein the plurality of data signals of the first signal type comprises data signals exchanged between a Radio Equipment and a Radio Equipment Controller and aggregating the plurality of input data signals into an aggregated first data signal. The method also comprises receiving a second data signal of a second signal type different to the first signal type, and multiplexing the first data signal with the second data signal to form a combined data signal. The method further comprises forwarding the combined data signal to the transport network. Multiplexing the first data signal with the second data signal comprises, for a frame of the combined data signal, allocating the first data signal to a portion of the frame reserved for the first data signal, and allocating the second data signal to a remaining portion of the frame.

A data processing method, a communications device, and a communications system, where in a process of transmitting a packet service, a code block stream carrying the packet service is first obtained, then, rate adaptation is performed on the obtained code block stream, and finally, the rate-adapted code block stream is mapped to an optical channel payload unit (OPU) signal. Compared with a mapping manner in which a Generic Framing Procedure (GFP) is used, the data processing method, the communications device, and the communications system feature low processing complexity and/or high bandwidth utilization.

An optical module with a dual layer printed circuit board assembly (PCBA) structure. The optical module includes a first casing and a second casing, and a first PCBA board and a second PCBA board located between the first casing and the second casing, a plurality of power components arranged on opposing surfaces of at least one of the first PCBA board and the second PCBA board, a layer of thermal superconducting medium of a bent arrangement including a first thermal conducting part and a second thermal conducting part arranged opposite to each other, the first thermal conducting part being thermally connected to the power component, and the second thermal conducting part being thermally connected to at least one of the first casing and the second casing, and at least one insulating layer arranged between the layer of thermal superconducting medium and the power components.