When I went to Cisco shop to get a router in order to relearn all the commands I had used before and certify myself to CCNA and CCN. The price didn't allow me to be capable of doing so. I have for months used other software based router applications. The lack of supported commands didn't allow me to continue, I was confused. My goal wasn't only to pass on the exams but to learn and become a good network professional. After days of goggling and test, GNS3 was my solution. I thank every member of the GNS3 team special for you Jimmy and Stephen. I’m willing to help in order to keep it as the ever best software based network platform.