def METHOD_NAME(self):
    """Passe existing syslog conf and extract config values
    Returns:
        tuple: interval,burst,target_ip
    """
    interval = '0'
    burst = '0'
    target_ip = None
    with open(self.SYSLOG_CONF_PATH, 'r') as f:
        content = f.read()
        pattern = re.compile(self.INTERVAL_PATTERN)
        for match in pattern.finditer(content):
            interval = match.group(1)
            break
        pattern = re.compile(self.BURST_PATTERN)
        for match in pattern.finditer(content):
            burst = match.group(1)
            break
        pattern = re.compile(self.TARGET_IP_PATTERN)
        for match in pattern.finditer(content):
            target_ip = match.group(1)
            break
    return interval, burst, target_ip