Earlham College Distribution

    This a diagram of the network connection in the Computing Center in Lilly Library.  This is only a logical representation of the network connection.  The physical reality is more complicated.  Notice that all of the connections go into the router.  This component is the heart and soul of the network.  If the router goes down, then the network goes down.  Though it does not happen too often, components such as router do crash.  Usually, they stay up a long time, then they go through a brief period where they might crash every 3 hours.
    The Earlham College network is designed to run at 10Mbps (Mega bits per second).  All building on campus with the exception of the Meetinghouse, Norwich Lodge, and College Houses have CAT 5 Twisted-pair cables installed.  All of the active componets on campus, with the exception of the switch, are designed to support 10Mbps.  The connection between the router and the switch is 100Mbps.
    The reason why only the router and the switch have the 100Mbps connection is because the switch services the CC subnet.  The CC subnet includes all of the servers, Yang, Chi, Newearl, WebDB, and more.  I will put those servers on the diagram soon.  By giving the servers the 100Mbps connection, that alleviates some of the congestion on the network and it allows the servers to put out more data in less time. 
Copyright February 12, 1999
Robert Kentaro Innes
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