Communication method, communications device, and storage medium

A communication method, comprising:

• generating, by a second device, first indication information indicating a protocol type supported by a second port of the second device, wherein the protocol type supported by the second port of the second device comprises at least one of a flexible Ethernet protocol or a standard Ethernet protocol;
• sending, by the second device to a first device, the first indication information indicating the protocol type supported by the second port;
• sending, by the second device to the first device, second indication information indicating a first protocol type currently used by the second port of the second device to send first information, wherein the sending, by the second device to the first device, second indication information indicating a first protocol type used by the second port to send first information comprises:
• in response to that determining the first protocol type used by the second port to send information is the flexible Ethernet protocol, sending, by the second device, the second indication information that comprises a first preset physical coding sublayer (PCS) code block;
• and
• sending, by the second device, the first information to a first port of the first device based on the first protocol type used by the second port of the second device.

A communications device, comprising:

• at least one processor;
• and
• one or more memories coupled to the at least one processor and storing programming instructions for execution by the at least one processor to:
• obtain a protocol type supported by a second port of a second device;
• obtain a first protocol type used by the second port to send information, wherein the obtaining a first protocol type used by the second port to send information comprises:
• determining whether a first preset physical coding sublayer (PCS) code block is received;
• and
• in response to determining that the first preset PCS code block is received, determining that the first protocol type used by the second port to send information is a flexible Ethernet protocol;
• and
• determine a first target protocol type based on the first protocol type supported by the second port and a protocol type supported by a first port of the communications device, wherein the first target protocol type comprises the flexible Ethernet protocol;
• and
• communicate through the first port with the second device through the second port based on the first target protocol type, wherein the communicating through the first port with the second device through the second port based on the first target protocol type comprises receiving, based on the first target protocol type through the first port, first information sent from the second port of the second device.