Today my mind is just a running loop of the following:
IP-VPN-CMD-L/DAP-SSA-PS-PCL-VLAN-WAN-LAN-SAN-PAN
Sever-Administrator-Global drives-Routers-Switches
Fiber wire-Bus-Star-Mesh-Token ring-Controller
Fiery-Crimping tool-Voltage meter-Client-User
Network-Hubs-ISDN-CAT-4-PTP-PSTN-SSL-Topology