Lecture Networking essentials plus (3 e) Chapter 7 Elements of network connectivity. The main contents of the chapter consist of the following Connectivity devices, connection services, modem technology, expanding a network using components, WAN Overview,...
Elements of Network Connectivity Connectivity Devices Connection Services Connectivity Devices Modem Technology Expanding a Network Using Components Digital Signals Versus Analog Waves Modems: Digital to Analog and Analog to Digital Internal Modem External Modem Asynchronous Serial Data Stream Asynchronous Versus Synchronous Ethernet Hubs Connected in Series Token-Ring Hubs Connected in Ring 10 Gateways Strip Old Stack and Add New Stack 20 Mainframe Gateway 21 Connection Services Carriers WAN Overview Sending Data Across a WAN 22 RAS Allows Access to Network 23 Analog Line Connects Computers Using Modems 24 Digital Data Service Line 25 Simple Packet-Switching Network 26 X.25 Packet Switching 27 Examples of DTEs 28 Frame Relay Uses Point-to-Point System 29 ATM Cell 30 ATM Switches Act as Multiplexers 31 FDDI Uses Dual-Ring Topology 32 Class A Computer: Both Rings Class B Computer: One Ring 33 FDDI Uses Beaconing 34 ... Repeaters Connect Different Types of Media 12 Bridge Connecting Two Networks 13 Routing Table Keeps Track of Addresses 14 Routing Table Allows Bridges to Segment Networks 15 Remote Bridges Used... Allows Access to Network 23 Analog Line Connects Computers Using Modems 24 Digital Data Service Line 25 Simple Packet-Switching Network 26 X.25 Packet Switching 27 Examples of DTEs 28 Frame Relay... Networks 15 Remote Bridges Used to Connect Remote Sites 16 Routers Talk to Routers 17 Bridges: Data-Link Layer Routers: Network Layer 18 Routers Use Multiple Paths 19 Gateways Strip Old Stack and Add