t ready or isn't there, no communication. Once the connection is made all the information sent down the connection will arrive at the other end.A connectionless protocol is like the postal service in that all information is sent in individual messages (called packets or datagrams). The individual datagrams have no knowledge or interconnection. Often they are delivered using totally different routes.Unreliable and reliable protocolsWhen a protocol is called unreliable this does not imply that a large percentage of the information it sends is not arriving at the other end. Instead it means that the protocol does not check whether or not the information it just sent actually arrives at the other end.On the other hand a reliable network protocol will send a piece of information and will wait to make sure that the information arrived at the other end (this is achieved by the receiver sending an acknowledgment back to the sender saying "yep received that piece, send me another"). 1.5 TYPES OF NETWORKING HARDWAREThere is a wide range of different networking hardware that can be used. It's beyond the scope of this subject to examine each of these. However the following readings from the Internet have been located.FDDI: http://www.iol.unh.edu/training/fddi/htmls/index.html ISDN: http://www.acc.com/White/isdn.html Frame relay: http://www.acc.com/White/frame.html ATM: http://juggler.lanl.gov/lanp/atm.tutorial.html Ethernet: http://wwwhost.ots.utexas.edu/ethernet/ SECTION 22.1 TCP/IPA)What is TCP/IP?The Transmission Control Protocol (TCP) The Transmission Control Protocol works with IP to provide reliable delivery. It provides a means to ensure that the various datagrams making up a message are reassembled in the correct order at their final destination and that any missing datagrams are re-sent until they are correctly received.The primary purpose of TCP is to avoid the loss, damage, duplication, delay, or misordering of packets that can occur un...
