Communication devices that communicate using frames and computer-readable media for controlling communication devices

A communication device comprising:

• a processor;
• and
• a memory configured to store computer-readable instructions therein,
• wherein the computer-readable instructions instruct the processor to operate as:
• a data length acquisition device configured to acquire a data length value comprised in a user datagram protocol (“UDP”) header of a received frame received by executing a UDP communication with a first device;
• a transmission device configured to generate a transmission frame and to transmit the transmission frame to a second device when executing a UDP communication with the second device,
• wherein a size of the transmission frame is based on a specific value determined utilizing the data length value;
• and
• a determination device configured to determine the specific value by utilizing the data length value, such that
• a current maximum segment size (“MSS”) value of the communication device changes to an upper limit MSS value of the communication device when the current MSS value of the communication device is less than or equal to the candidate MSS value of the first device and the upper limit MSS value is less than a candidate MSS value of the first device, and
• the current MSS value of the communication device changes to the candidate MSS value of the first device when the current MSS value is less than or equal to the candidate MSS value of the first device and the upper limit MSS value of the communication device is greater than or equal to the candidate MSS value of the first device,
• wherein the current MSS value is a value of an MSS of the communication device,
• wherein the upper limit MSS value is a value of an upper limit of an MSS of the communication device, and
• wherein the candidate MSS value is a candidate for a value of an MSS of the first device obtained from the data length value.

A non-transitory, computer-readable storage medium comprising computer-readable instructions for a processor of a communication device, the computer-readable instructions instructing the processor to perform the steps of:

• acquiring a reference maximum segment size (“MSS”) value from a first device by executing a transmission control protocol communication with the first device, wherein the reference MSS value is a value of an MSS of the first device;
• determining a size of a transmission frame based on a specific value determined utilizing the reference MSS value of the first device;
• and
• generating the transmission frame based on the size and transmitting the transmission frame to a second device when executing a user datagram protocol communication with the second device,
• wherein determining the size of the transmission frame based on the specific value determined utilizing the reference MSS value of the first device comprises determining the specific value by utilizing the reference MSS value of the first device, such that a current MSS value of the communication device changes to an upper limit MSS value of the communication device when the current MSS value is less than or equal to the reference MSS value of the first device and the upper limit MSS value is less than the reference MSS value of the first device,
• wherein the current MSS value is a value of an MSS of the communication device, and
• wherein the upper limit MSS value is a value of an upper limit of the MSS of the communication device.

A non-transitory, computer-readable storage medium comprising computer-readable instructions for a processor of a communication device, the computer-readable instructions instructing the processor to perform the steps of:

• acquiring a data length value comprised in a user datagram protocol (“UDP”) header of a received frame received by executing a UDP communication with a first device;
• determining a size of a transmission frame based on a specific value determined utilizing the data length value;
• and
• generating the transmission frame based on the size and transmitting the transmission frame to a second device when executing a UDP communication with the second device
• wherein determining the size of the transmission frame based on the specific value determined utilizing the data length value comprises determining the specific value by utilizing the data length value, such that
• a current maximum segment size (“MSS”) value of the communication device changes to an upper limit MSS value of the communication device when the current MSS value of the communication device is less than or equal to the candidate MSS value of the first device and the upper limit MSS value is less than a candidate MSS value of the first device, and
• the current MSS value of the communication device changes to the candidate MSS value of the first device when the current MSS value is less than or equal to the candidate MSS value of the first device and the upper limit MSS value of the communication device is greater than or equal to the candidate MSS value of the first device,
• wherein the current MSS value is a value of an MSS of the communication device,
• wherein the upper limit MSS value is a value of an upper limit of an MSS of the communication device, and
• wherein the candidate MSS value is a candidate for a value of an MSS of the first device obtained from the data length value.

A communication device comprising:

• a reference maximum segment size (“MSS”) value acquisition device configured to acquire a reference MSS value from a first device by executing a transmission control protocol communication with the first device;
• a transmitter configured to generate a transmission frame and to transmit the transmission frame to a second device when executing a user datagram protocol communication with the second device,
• wherein the reference MSS value is a value of an MSS of the first device, and
• wherein a size of the transmission frame is based on a specific value determined utilizing the reference MSS value of the first device;
• and
• a determination device configured to determine the specific value by utilizing the reference MSS value of the first device, such that a current MSS value of the communication device changes to an upper limit MSS value of the communication device when the current MSS value is less than or equal to the reference MSS value of the first device and the upper limit MSS value is less than the reference MSS value of the first device,
• wherein the current MSS value is a value of an MSS of the communication device, and
• wherein the upper limit MSS value is a value of an upper limit of the MSS of the communication device.

A communication device comprising:

• a data length acquisition device configured to acquire a data length value comprised in a user datagram protocol (“UDP”) header of a received frame received by executing a UDP communication with a first device;
• a transmitter configured to generate a transmission frame and to transmit the transmission frame to a second device when executing a UDP communication with the second device,
• wherein a size of the transmission frame is based on a specific value determined utilizing the data length value;
• and
• a determination device configured to determine the specific value by utilizing the data length value, such that
• a current maximum segment size (“MSS”) value of the communication device changes to an upper limit MSS value of the communication device when the current MSS value of the communication device is less than or equal to the candidate MSS value of the first device and the upper limit MSS value is less than a candidate MSS value of the first device, and
• the current MSS value of the communication device changes to the candidate MSS value of the first device when the current MSS value is less than or equal to the candidate MSS value of the first device and the upper limit MSS value of the communication device is greater than or equal to the candidate MSS value of the first device,
• wherein the current MSS value is a value of an MSS of the communication device,
• wherein the upper limit MSS value is a value of an upper limit of an MSS of the communication device, and
• wherein the candidate MSS value is a candidate for a value of an MSS of the first device obtained from the data length value.