Abstract: The present invention discloses a method and an apparatus for transporting an ultra-high-speed Ethernet service. The method includes: distributing an ultra-high-speed Ethernet service data flow into n virtual channels, where a rate of the ultra-high-speed Ethernet service data flow is higher than a rate of 100GE; synchronously adding a marker to data of each of the n virtual channels; mapping the data of the n virtual channels channel by channel; and framing and transmitting the data of the n virtual channels. The method adopts a channelized transport manner to transparently transport an ultra-high-speed Ethernet service, and implements mapping processing on the ultra-high-speed Ethernet service, so as to reduce its complexity to a level for processing a low-rate Ethernet service and reduce implementation difficulty.

Abstract: In the field of optical communications, a method and a device for adjusting transmission of transport network data are provided. The method includes the following steps. Information of adjusting a designated Optical Transport Network (OTN) line sent from an OTN is received. The OTN line corresponding to the information of adjusting the designated OTN line is adjusted. Changed data traffic of the adjusted OTN line is calculated. An Ethernet channel to be adjusted according to the changed data traffic is designated, and the Ethernet channel to be adjusted is adjusted correspondingly. The device includes a Link Capacity Adjustment Scheme (LCAS) module and a channel processing module. According to the method and the device, the adjustment of the OTN line is associated with the adjustment of the Ethernet channel, thereby ensuring the data transmission efficiency, and improving the overall performance of a network.

Abstract: A method and an apparatus for sending an Ethernet physical-layer OAM overhead, and a method and an apparatus for receiving an Ethernet physical-layer OAM overhead are disclosed herein. A method for sending an Ethernet physical-layer OAM overhead includes: adjusting the order of sending a payload block and part of Inter-Packet Gaps (IPGs) in a data stream to be transmitted; and when receiving a request for sending an OAM overhead, substituting the OAM overhead for the part of IPGs, and sending the OAM overhead before sending the payload block. Through the present invention, the order of sending IPGs and payload blocks in an MAC data stream can be adjusted, and the OAM overhead can be sent in time.

Abstract: A method and an apparatus for sending an Ethernet physical-layer OAM overhead, and a method and an apparatus for receiving an Ethernet physical-layer OAM overhead are disclosed herein. A method for sending an Ethernet physical-layer OAM overhead includes: adjusting the order of sending a payload block and part of Inter-Packet Gaps (IPGs) in a data stream to be transmitted; and when receiving a request for sending an OAM overhead, substituting the OAM overhead for the part of IPGs, and sending the OAM overhead before sending the payload block. Through the present invention, the order of sending IPGs and payload blocks in an MAC data stream can be adjusted, and the OAM overhead can be sent in time.

Abstract: A method, a system, and a device for transmitting data in an OTN are disclosed herein. The method for transmitting data in an OTN includes: mapping the at least one pair of ODU0's to an ODTU to form an ODTUvkt, wherein k is greater than or equal to 1, t is 2 or 3, and an external structure of the ODTUvkt is the same as an external structure of an ODTUkt; and mapping the ODTUvkt to timeslot i and timeslot i+n of a 1.25 G ODUt, indicating the type of at least one pair of ODU0's carried in timeslot i to be ODUk, and transmitting the ODUk to a destination node.

Abstract: Embodiments of the present invention disclose a method for the generic mapping procedure GMP mapping, a method for GMP demapping, and an apparatus. The method for mapping includes: carrying, in an overhead GMP OH of the ith GMP block container, information about a TS that needs to be occupied by the (i+n)th GMP block container; adjusting the (i+n)th GMP block container according to the information about the TS that needs to be occupied by the (i+n)th GMP block container; performing, according to the adjusted (i+n)th GMP block container, the GMP mapping on customer service data to be sent, so that a receive end is capable of adopting a corresponding demapping manner according to a change of the block container, which implements lossless mapping and demapping processing by adopting a GMP for a variable block container.

Abstract: A bandwidth adjusting method and a communication node are provided. The adjusting method includes: sending, by an upstream ingress unit, a group of multi-channel parallel basic switch cells in which adjustment signaling is carried to all downstream branch egress units; sending normal signaling when determining that adjustment response statuses returned by all the downstream branch egress units are reception acknowledgment; after receiving the normal signaling by the downstream branch egress unit, adding or removing the basic switch cell into or from a next group of multi-channel parallel basic switch cells according to the adjustment signaling; and adjusting a time slot of an HO ODU sent by the downstream branch egress unit to a downstream node, and instructing the downstream node to adjust the time slot of the HO ODU. Through the method and the communication node, lossless bandwidth adjustment in a point-to-multipoint OTN asymmetric bandwidth carrier system is implemented.

Abstract: The embodiments of the present invention relate to the field of communications technologies, and disclose a lossless adjustment method of ODUflex channel bandwidth and an 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.

Abstract: In the field of optical communications, a method and a device for adjusting transmission of transport network data are provided. The method includes the following steps. Information of adjusting a designated Optical Transport Network (OTN) line sent from an OTN is received. The OTN line corresponding to the information of adjusting the designated OTN line is adjusted. Changed data traffic of the adjusted OTN line is calculated. An Ethernet channel to be adjusted according to the changed data traffic is designated, and the Ethernet channel to be adjusted is adjusted correspondingly. The device includes a Link Capacity Adjustment Scheme (LCAS) module and a channel processing module. According to the method and the device, the adjustment of the OTN line is associated with the adjustment of the Ethernet channel, thereby ensuring the data transmission efficiency, and improving the overall performance of a network.

Abstract: A method, a system, and a device for transmitting data in an OTN are disclosed herein. The method for transmitting data in an OTN includes: mapping the at least one pair of ODU0's to an ODTU to form an ODTUvkt, wherein k is greater than or equal to 1, t is 2 or 3, and an external structure of the ODTUvkt is the same as an external structure of an ODTUkt; and mapping the ODTUvkt to timeslot i and timeslot i+n of a 1.25 G ODUt, indicating the type of at least one pair of ODU0's carried in timeslot i to be ODUk, and transmitting the ODUk to a destination node.

Abstract: A method and an apparatus for sending an Ethernet physical-layer OAM overhead, and a method and an apparatus for receiving an Ethernet physical-layer OAM overhead are disclosed herein. A method for sending an Ethernet physical-layer OAM overhead includes: adjusting the order of sending a payload block and part of Inter-Packet Gaps (IPGs) in a data stream to be transmitted; and when receiving a request for sending an OAM overhead, substituting the OAM overhead for the part of IPGs, and sending the OAM overhead before sending the payload block. Through the present invention, the order of sending IPGs and payload blocks in an MAC data stream can be adjusted, and the OAM overhead can be sent in time.

Abstract: A method and apparatus for distributing and receiving high-speed Ethernet Media Independent Interface (MII) blocks are provided to moderate the increase of control lines with the increase of the bit width and to simplify the block types in the coding process of the Physical Coding Sublayer (PCS). The technical solution disclosed herein includes: processing received Media Access Control (MAC) layer data, and adjusting distribution of control characters to generate a 64-bit block; obtaining a control signal code of the 64-bit block according to the relation between the form of the 64-bit block and the control signal code; and binding each 64-bit block to the corresponding control signal code respectively, and sending bound data over a separate channel.