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 is at least one of a flexible Ethernet protocol or a standard Ethernet protocol;
• sending, by the second device, the first indication information indicating the protocol type supported by the second port;
• and
• sending, by the second device, second indication information indicating a protocol type currently used by the second port for transmission, wherein the sending, by the second device, the second indication information indicating the protocol type supported by the second port comprises:
• when the second port supports the flexible Ethernet protocol and the standard Ethernet protocol, sending, by the second device, the second indication information based on a preset protocol type, wherein the preset protocol type is the standard Ethernet protocol and the second indication information does not comprise a first preset physical coding sublayer (PCS) code block.

A first device, comprising:

• at least one processor;
• and
• at least one memories coupled to the at least one processor and storing programming instructions for execution by the at least one processor to perform operations comprising:
• obtaining a protocol type supported by a second port of a second device, wherein the protocol type supported by the second port of the second device is at least one of a flexible Ethernet protocol or a standard Ethernet protocol, a first port of the first device supports the flexible Ethernet protocol and the standard Ethernet protocol;
• obtaining a first protocol type used by the second port for transmission, wherein the obtaining, by the first device, a first protocol type used by the second port for transmission 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 not received, determining that the first protocol type used by the second port for transmission is the standard Ethernet protocol;
• determining, based on the protocol type supported by the second port and a protocol type supported by the first port of the first device, whether a target protocol type is the flexible Ethernet protocol or the standard Ethernet protocol;
• and
• communicating with the second device based on the target protocol type through the first port and the second port.

A second device, comprising:

• at least one processor;
• and
• at least one memories coupled to the at least one processor and storing programming instructions for execution by the at least one processor to perform operations comprising:
• generating 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 is at least one of a flexible Ethernet protocol or a standard Ethernet protocol;
• sending the first indication information indicating the protocol type supported by the second port;
• and
• sending second indication information indicating a protocol type currently used by the second port for transmission, wherein the sending, by the second device, the second indication information indicating the protocol type supported by the second port comprises:
• when the second port supports the flexible Ethernet protocol and the standard Ethernet protocol, sending the second indication information based on a preset protocol type, wherein the preset protocol type is the standard Ethernet protocol and the second indication information does not comprise a first preset physical coding sublayer (PCS) code block.

A communication system comprising a first device and a second device, wherein the first device and the second device are configured to perform operations comprising:

• obtaining, by the first device, a protocol type supported by a second port of a second device, wherein the protocol type supported by the second port of the second device is at least one of a flexible Ethernet protocol or a standard Ethernet protocol, and a first port of the first device supports the flexible Ethernet protocol and the standard Ethernet protocol;
• generating, by the second device, first indication information used to indicate the protocol type supported by the second port of the second device;
• sending, by the second device, the first indication information used to indicate the protocol type supported by the second port;
• obtaining, by the first device, a first protocol type used by the second port for transmission, wherein the obtaining, by the first device, a first protocol type used by the second port for transmission 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 not received, determining that the first protocol type used by the second port for transmission is the standard Ethernet protocol;
• determining, by the first device and based on the protocol type supported by the second port and a protocol type supported by the first port, whether a target protocol type is the flexible Ethernet protocol or the standard Ethernet protocol;
• and
• communicating, by the first device with the second device based on the target protocol type through the first port and the second port.