public void setProtocolName(String protocolName) {
        this.protocolName = protocolName;
    }
<p>
The name of the communication protocol for the interface.
</p>

@param protocolName
       The name of the communication protocol for the interface.
aws-java-sdk-iotfleetwise/src/main/java/com/amazonaws/services/iotfleetwise/model/CanInterface.java