Nouman Ahmed, CCIE #19730
IE R&S Workbook v 4 : This product needs no introduction. A very well-written workbook and the end labs are much tougher than what you should expect in CCIE. COD by BRIANS: Waooo. What should I say about this? Brians, you really know the stuff. A MUST [IN ORDER] TO BE A CCIE.