Physical Lan Design and Details of the MDF And IDF Rooms
Figure 1.0 Locations of MDF
and IDFs. The MDF is located at the POP (Point of Presence). The IDFs are
identified by the red boxes and are labeled from I1 to I6.
Three school routers, SunsetA, SunsetB, and
SunsetC are located at the MDF, and there is one IDF for each subnetwork. Each
cable run, denoted by the red line of Figure 1.0, contains 5 CAT5 UTP cables
capable of supporting Gigabit Ethernet that connects the IDFs to the MDF. The
MDF contains 4 12-port switches (3 for the curriculum LAN and 1 for the
administrative LAN) to connect to the routers, which in turn provide
connectivity to the WAN.
The IDFs each contain 3 12-port switches, which
connect to the data media termination points (DMPT), Figures 2.1 and 2.2 below.
Each red line for Figures 2.1 and 2.2 contain 4 CAT5 UTP capable of at least
100Mbps for each DMTP, connected from the IDF switches and terminated at the
data media termination points. Each DMTP contains three 10-port hubs, each hub
connected to one of the four CAT5 UTP and serving to support the 24 curriculum
computers for each room. The other CAT5 cable connects to the teacherís
computer and is terminated not at the IDF but at the MDF where the hubs for the
administrative LANs are located.
Building A West
Sunset Building A East, Buildings B and C