UART Debug in Arduino

uart_debug.ino

#include <SoftwareSerial.h>

const int baud = 9600;
const int rx_pin = 2;
const int tx_pin = 3;
SoftwareSerial ss(rx_pin,tx_pin);

void setup()  {
  Serial.begin(9600);
  Serial.println("Arduino Serial Monitor Initialize");

  ss.begin(baud);
}

void loop() {
  if(ss.available()) Serial.write(ss.read());
  if(Serial.available()) ss.write(Serial.read());
}