Information Technology Blog (Archive)

I rebuild the network model (not the exact) using Packet Tracer  we actually designed and implemented last October 24, 2010 during our Cisco Final Skill-based Assessment in which we are required to design a network with 2 domains (LAB1 and LAB2) where each domain contains different VLANS. We should also implement router-on-a-stick to make the VLANS communicate with each other. Plus some hosts must be able to connect to the Cisco Server and access the Cisco curriculum, while some will be refused connectivity from the wireless routers using Mac Address Filtering. The one biggest mistake we did was to configure the trunk interface of the switch connected to the router  (R1) with a Native VLAN with the command: S2(config-if)#switchport trunk native vlan 88 Thus, the switch cannot be pinged by any other device except the router it is directly connected with. That issue took us 4 hours to troubleshoot, (6 hours of completing the whole activity + 4 hours of troubleshooting = 10 hours...

 Yay! Finally I had a taste of GUI in Java, but actually I used JFrame Form. It can perfom basic arithmetic, modulo, power of 2, square root, decimal to binary, changing of sign and includes the C, CE and Backspace buttons. I really enjoy making interactive applications like this one, and the Actionscript 3.0 game I've posted before. The challenging part is taking note of every possible input and making your application handle it (but honestly it helps improve my logic skill).