Method and Apparatus for Transmitting Service Flow Based on Flexible Ethernet, and Communication System

A flexible Ethernet-based service flow transmission apparatus comprising:

• a processor;
• a memory storing a program to be executed in the processor, the program comprising instructions to:
• when a first PHY in a bundling group fails, determine, based on a preconfigured first timeslot configuration table, K target timeslot(s) in N timeslots that is mapped to the first PHY, wherein at least one service flow is transmitted on the flexible Ethernet by using the bundling group, a bandwidth resource corresponding to the bundling group corresponds to M timeslots, service data of the at least one service flow is encapsulated in the N timeslots in the M timeslots, each timeslot in the N timeslots is mapped to one PHY in the bundling group, and service data encapsulated in a timeslot is transmitted by using a PHY to which the timeslot is mapped, wherein M is an integer greater than 1, and N is an integer greater than or equal to 1, and M≥N,
• wherein the first timeslot configuration table comprises a mapping relationship between the M timeslots and PHYs in the bundling group, K is an integer greater than or equal to 1;
• determine K idle timeslot(s) in the M timeslots, based on the first timeslot configuration table;
• and
• transmit service data corresponding to the K target timeslot(s) by using the K idle timeslot(s).

A communications system, comprising a flexible Ethernet-based network device, wherein at least one service flow is transmitted on the flexible Ethernet by using a bundling group, a bandwidth resource corresponding to the bundling group corresponds M timeslots, service data of the at least one service flow is encapsulated in N timeslots in the M timeslots, each timeslot in the N timeslots is mapped to one PHY in the bundling group, and service data encapsulated in a timeslot is transmitted by using a PHY to which the timeslot is mapped, wherein M is an integer greater than 1, and N is an integer greater than or equal to 1, and M≥N;

• and
• the network device is configured to:
• when a first PHY in the bundling group fails, determine, based on a preconfigured first timeslot configuration table, K target timeslot(s) in the N timeslots that is mapped to the first PHY, wherein the first timeslot configuration table comprises a mapping relationship between the M timeslots and PHYs in the bundling group, K is an integer greater than or equal to 1;
• the network device is further configured to determine K idle timeslot(s) in the M timeslots, based on the first timeslot configuration table;
• and
• the network device is further configured to transmit service data corresponding to the K target timeslot(s) by using the K idle timeslot(s).

A non-transitory computer readable medium, where the non-transitory computer readable medium is applied for transmitting a service flow based on a flexible Ethernet, wherein at least one service flow is transmitted on the flexible Ethernet by using a bundling group, a bandwidth resource corresponding to the bundling group is distributed into M timeslots, service data of the at least one service flow is encapsulated in N timeslots in the M timeslots, each timeslot in the N timeslots is mapped to one PHY in the bundling group, and service data encapsulated in a timeslot is transmitted by using a PHY to which the timeslot is mapped, wherein M is an integer greater than 1, and N is an integer greater than or equal to 1, and M≥N;

• and
• the non-transitory computer readable medium comprises instructions which, when executed by a computer, cause the computer to carry out steps:
• when a first PHY in the bundling group fails, determining, based on a preconfigured first timeslot configuration table, K target timeslot(s) in the N timeslots that is mapped to the first PHY, wherein the first timeslot configuration table comprises a mapping relationship between the M timeslots and PHYs in the bundling group, K is an integer greater than or equal to 1;
• determining K idle timeslot(s) in the M timeslots, based on the first timeslot configuration table;
• and
• transmitting service data corresponding to the K target timeslot(s) by using the K idle timeslot(s).