Method for transmitting service stream in flexible ethernet and apparatus
地域：
Shenzhen
摘要
Embodiments provide a method for transmitting a service stream in a flexible Ethernet and an apparatus. The method includes: obtaining a to-be-transmitted service stream, where the service stream is to be transmitted by using a target virtual connection supported by a physical connection group between a transmit end and a receive end, the physical connection group includes multiple physical connections and supports at least one virtual connection, and the target virtual connection is any one of the at least one virtual connection; determining, from total bandwidth resources of the multiple physical connections and according to timeslot configuration tables used by the multiple physical connections, a timeslot bandwidth resource that belongs to the target virtual connection; and transmitting the service stream to the receive end by using the timeslot bandwidth resource that belongs to the target virtual connection.
說明書
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This application is a continuation of U.S. patent application Ser. No. 15/873,397, filed on Jan. 17, 2018, which is a continuation of International Application No. PCT/CN2016/090161, filed on Jul. 15, 2016. The International Application claims priority to Chinese Patent Application No. 201510423022.3, filed on Jul. 17, 2015. All of the afore-mentioned patent applications are hereby incorporated by reference in their entireties.
Embodiments of the present invention relate to the Ethernet field, and more specifically, to a method for transmitting a service stream in a flexible Ethernet and an apparatus.
Introduction of a concept of a flexible Ethernet (FlexEth) provides a feasible evolution direction for virtualization of an Ethernet physical connection. In the FlexEth, one or more physical connections are bound by using cascading to constitute a physical connection group, to obtain a bandwidth resource pool. Total bandwidth resources of the bandwidth resource pool are a sum of bandwidth resources of all physical connections in the physical connection group. From another perspective, the physical connection group may be considered as a high speed logical connection that is implemented between a transmit end and a receive end. The logical connection has a total bandwidth of the bandwidths of the physical interface connections that are bound using cascading. In the FlexEth, the bandwidth resources of the physical connection group are further divided into several timeslots using time division. Several virtual connections are supported by binding the timeslots using cascading, thereby providing a powerful flexibility characteristic for data transmission in the Ethernet.
權利要求
The invention claimed is:1. A method, comprising:obtaining, by a transmit end, a service stream, wherein the service stream is to be transmitted by the transmit end to a receive end using a target virtual connection, the target virtual connection is supported by a physical connection group, the physical connection group comprises a plurality of physical connections, and the plurality of physical connections of the physical connection group is connected between the transmit end and the receive end; and transmitting, by the transmit end, the service stream to the receive end using a timeslot bandwidth resource that belongs to the target virtual connection, wherein, for each physical connection of the plurality of physical connections, a plurality of overhead code blocks transmitted over the respective physical connection comprises a first field and a management channel, wherein each first field indicates an identifier of a timeslot configuration table, each management channel transmits content of the timeslot configuration table, and the timeslot configuration table indicates the timeslot bandwidth resource that belongs to the target virtual connection. 2. The method according to claim 1 , wherein:the timeslot bandwidth resource that belongs to the target virtual connection comprises one or more timeslots of one physical connection of the physical connection group; or the timeslot bandwidth resource that belongs to the target virtual connection comprises one or more timeslots of more than one physical connection of the physical connection group. 3. The method according to claim 1 , wherein each management channel further transmits content of a physical connection configuration table of the physical connection group, wherein the physical connection configuration table of the physical connection group indicates an identifier of each physical connection of the plurality of physical connections in the physical connection group and a sequence between the plurality of physical connections. 4. The method according to claim 3 , wherein each management channel transmits, based on a protocol packet, content of the timeslot configuration table or content of the physical connection configuration table of the physical connection group. 5. The method according to claim 4 , wherein each management channel further requests, based on the protocol packet, a change of the timeslot configuration table or the physical connection configuration table of the physical connection group. 6. The method according to claim 1 , wherein all fields of M overhead code blocks in each plurality of overhead code blocks transmit the management channels, M is a positive integer, wherein the management channels transmit content of the timeslot configuration table or content of a physical connection configuration table of the physical connection group using Ethernet packets, and synchronization headers of the M overhead code blocks are usable for synchronization of the Ethernet packets. 7. The method according to claim 1 , wherein the management channels implement a management channel of the physical connection group, the plurality of physical connections in the physical connection group share the management channel of the physical connection group, and content of the one or more timeslot configuration tables used by the plurality of physical connections, or content of a physical connection configuration table of the physical connection group, is transmitted using the management channel of the physical connection group. 8. A method, comprising:receiving, by a receive end, a data stream sent by a transmit end using a physical connection group, wherein the physical connection group comprises a plurality of physical connections, the physical connection group supports a target virtual connection, the target virtual connection transmits a service stream, wherein, for each physical connection of the plurality of physical connections, a plurality of overhead code blocks transmitted over the respective physical connection comprises a first field and a management channel, wherein each first field indicates an identifier of a timeslot configuration table, each management channel transmits content of the timeslot configuration table, and wherein the timeslot configuration table indicates a timeslot bandwidth resource that belongs to the target virtual connection; and restoring, from the data stream and according to the timeslot bandwidth resource that belongs to the target virtual connection, the service stream transmitted over the target virtual connection. 9. The method according to claim 8 , wherein the management channels further transmit:content of a physical connection configuration table of the physical connection group, wherein the physical connection configuration table of the physical connection group indicates an identifier of each physical connection of the plurality of physical connections in the physical connection group and a sequence between the plurality of physical connections. 10. The method according to claim 9 , wherein the management channels transmit, based on a protocol packet, content of the timeslot configuration table or content of the physical connection configuration table of the physical connection group. 11. A transmitter, comprising:at least one processor configured to:obtain a service stream, wherein the service stream is to be transmitted by the transmit end to a receive end using a target virtual connection, the target virtual connection is supported by a physical connection group, the physical connection group comprises a plurality of physical connections, and the plurality of physical connections is connected between the transmit end and the receive end; and transmit the service stream to the receive end using a timeslot bandwidth resource that belongs to the target virtual connection, wherein, for each physical connection of the plurality of physical connections, a plurality of overhead code blocks transmitted over the respective physical connection comprises a first field and a management channel, wherein each first field indicates an identifier of a timeslot configuration table, each management channel transmits content of the timeslot configuration table, and wherein the timeslot configuration table indicates the timeslot bandwidth resource that belongs to the target virtual connection. 12. The transmitter according to claim 11 , wherein:the timeslot bandwidth resource that belongs to the target virtual connection comprises one or more timeslots of one physical connection of the physical connection group; or the timeslot bandwidth resource that belongs to the target virtual connection comprises one or more timeslots of more than one physical connection of the physical connection group. 13. The transmitter according to claim 11 , wherein each management channel further transmits content of a physical connection configuration table of the physical connection group, wherein the physical connection configuration table of the physical connection group indicates an identifier of each physical connection of the plurality of physical connections in the physical connection group and a sequence between the plurality of physical connections. 14. The transmitter according to claim 13 , wherein each management channel transmits, based on a protocol packet, content of the timeslot configuration table or content of the physical connection configuration table of the physical connection group. 15. The transmitter according to claim 14 , wherein each management channel further requests, based on the protocol packet, a change of the timeslot configuration table or the physical connection configuration table of the physical connection group. 16. The transmitter according to claim 11 , wherein all fields of M overhead code blocks in each plurality of overhead code blocks transmit the management channels, M is a positive integer, wherein the management channels transmit the content of the timeslot configuration table or content of a physical connection configuration table of the physical connection group using Ethernet packets, and synchronization headers of the M overhead code blocks are usable for synchronization of the Ethernet packets. 17. The transmitter according to claim 11 , wherein the management channels implement a management channel of the physical connection group, the plurality of physical connections in the physical connection group share the management channel of the physical connection group, and content of the one or more timeslot configuration tables used by the plurality of physical connections, or content of a physical connection configuration table of the physical connection group, is transmitted using the management channel of the physical connection group. 18. A receiver, comprising:at least one processor configured to:receive, by a receive end, a data stream sent by a transmit end using a physical connection group, wherein the physical connection group comprises a plurality of physical connections, the physical connection group supports a target virtual connection, the target virtual connection transmits a service stream, wherein, for each physical connection of the plurality of physical connections, a plurality of overhead code blocks transmitted over the respective physical connection comprises a first field and a management channel, wherein each first field indicates an identifier of a timeslot configuration table, each management channel transmits content of the timeslot configuration table, and wherein the timeslot configuration table indicates a timeslot bandwidth resource that belongs to the target virtual connection; and restore, from the data stream and according to the timeslot bandwidth resource that belongs to the target virtual connection, the service stream transmitted over the target virtual connection. 19. The receiver according to claim 18 , wherein the management channels further transmit:content of a physical connection configuration table of the physical connection group, wherein the physical connection configuration table of the physical connection group indicates an identifier of each physical connection of the plurality of physical connections in the physical connection group and a sequence between the plurality of physical connections. 20. The receiver according to claim 18 , wherein the management channels transmit, based on a protocol packet, content of the timeslot configuration table or content of a physical connection configuration table of the physical connection group.
意見反饋