Network Protocols Exploration TDC375 Autumn 2009 10 John Kristoff DePaul University 1 Layering Why or why not OSI model TCP IP protocol suite Models versus implementations TDC375 Autumn 2009 10 John Kristoff DePaul University 2 Addressing Fixed size versus variable length Hierarchy and aggregation Centralized assignment versus distributed TDC375 Autumn 2009 10 John Kristoff DePaul University 3 Fragmentation Maximum transmission unit MTU discovery Where does fragmentation occur TDC375 Autumn 2009 10 John Kristoff DePaul University 4 Routing Source based versus network based Distance vector versus link state Policy routing Mobility issues TDC375 Autumn 2009 10 John Kristoff DePaul University 5 Error control Detection and reporting Correction and recovery What are the cause of errors Link based or end to end based control TDC375 Autumn 2009 10 John Kristoff DePaul University 6 Flow control Implicit versus explicit Windowing End to end based versus network based Timers and restransmissions TDC375 Autumn 2009 10 John Kristoff DePaul University 7 Network management Simplicity versus complexity In band versus out of band QoS CoS Billing TDC375 Autumn 2009 10 John Kristoff DePaul University 8 Internetwork security Placement of security services Defense in depth and belt and suspenders Obscurity Walled gardens Trade offs TDC375 Autumn 2009 10 John Kristoff DePaul University 9 Standards Access and transparency Vendors and competing interests Intellectual property concerns Design by committee syndrome TDC375 Autumn 2009 10 John Kristoff DePaul University 10
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