code: String
  rrToString() {
  	StringBuffer sb = new StringBuffer();
  	sb.append(prefixBits);
  	if (suffix != null) {
  		sb.append(" ");
  		sb.append(suffix.getHostAddress());
  	}
  	if (prefix != null) {
  		sb.append(" ");
  		sb.append(prefix);
  	}
  	return sb.toString();
  }
docs: Converts rdata to a String