This course focuses on advanced IP addressing techniques, intermediate routing protocols, command-line interface configuration of switches, Ethernet switching, VLANs, STP, and VTP. Upon completion, student should be able to perform tasks related to VLSM, routing protocols, switching concepts and configuration, STP, VLANs, and VTP. WAN theory and design, WAN technology, PPP, Frame Relay and ISDN will be covered. Again this course enhances the mastering of some topics including network congestion problems, TCP/IP transport and network layer protocols, advanced routing and switching configuration, ISDN protocols and PPP encapsulation operations on a router.