TAILIEUCHUNG - Lecture Network + Guide to Networks (5th edition) - Chapter 7: WANs and remote connectivity

Chapter 7 objectives: Identify a variety of uses for WANs; explain different WAN topologies, including their advantages and disadvantages; compare the characteristics of WAN technologies, including their switching type, throughput, media, security, and reliability;. Inviting you to refer. | WAN Essentials 9 7 2011 Objectives Identify a variety of uses for WANs Explain different WAN topologies including their advantages and disadvantages Compare the characteristics of WAN technologies including their switching type throughput media security and reliability Describe several WAN transmission and connection methods including PSTN ISDN T-carriers DSL broadband cable ATM and SONET Describe multiple methods for remotely connecting to a network WAN Essentials WAN - Network traversing some distance connecting LANs - Transmission methods dependent on business needs WAN and LAN common properties - Client-host resource sharing Layer 3 protocols packet-switched digitized data WAN and LAN differences - Layers 1 and 2 access methods topologies media - LAN wiring private - WAN wiring public through NSPs network service providers 1 Figure 7-1 Differences in LAN and WAN connectivity WAN site - Individual geographic locations WAN link - WAN site to WAN site connection WAN Topologies Differences from LAN topologies - Distance covered number of users distance traveled - Connect sites via dedicated links Much slower than LAN connections Use different connectivity devices WAN connections - Require Layer 3 devices Routers - Not capable of nonroutable protocols 9 7 2011 Bus Each site connects to two sites maximum serially - Similar LAN topology site dependency Network site dependent on every other site to transmit and receive traffic - Difference from LAN topology Different locations connected to another through point-to-point links Best use - Organizations requiring small WAN dedicated circuits Drawback - Not scalable 2 Bus cont d. Figure 7-2 A bus topology WAN Ring cont d. Figure 7-3 A ring topology WAN 9 7 2011 Ring Each site connected to two other sites - Forms ring pattern Similar to LAN ring topology Differences from LAN ring topology - Connects locations - Relies on redundant rings Data rerouted upon site failure - Expansion Difficult expensive Best use - Connecting .

• Quản trị mạng
• Guide to Networks
• Network operating systems
• WAN essentials
• WAN topologies
• Public Switched Telephone Network
• Frame relay
• Types of Networks
• Peer to Peer Networks
• Server Networks
• Client Networks
• 802
• 11 Wireless Networks
• The Definitive Guide
• 2nd Edition
• Wireless Networks
• wireless technology
• Client support
• Server communication
• Client communication
• Organizing Network elements
• Networking standards organizations
• Networking standards
• American National Standards Institute
• Electronic Industries Alliance
• Simple physical topologies
• Ethernet standards
• Logical topologies
• Ethernet frames
• TCP IP protocols
• Characteristics of TCP IP
• The TCP IP core protocols
• Assigning IP addresses
• Transmission basics
• Digital signaling
• Data modulation
• Networking media
• Network hardware
• Network Interface Cards
• LAN connectivity hardware
• VLAN management
• Bayesian networks
• Influence diagrams
• Bayesian networks and influence diagrams
• A guide to construction
• Eliciting the model
• Data driven modeling
• 11 Networks
• The 802
• 11 MAC
• Framing in Detail
• Security
• Take 2 802
• 1x
• 11a 5 GHz OFDM PHY
• cisco exam
• Internetworking
• cisco network
• Building Cisco
• Remote Access Networks
• Cisco Fundamentals
• information technology
• network management
• computer synthesis
• computer networks
• Introduction to VPN Technology
• Remote Access VPN
• Android basics 15
• Home screen
• networks and devices
• Bluetooth Device
• Wireless & networks
• security settings
• Laboratory Informatics
• Total Cost of Ownership
• Computer Basics
• Communication Networks
• Essential Software
• Clinical
• marketing
• online
• guide
• essential
• emarketing
• business
• networks
• weaving
• Ethernet Switches
• Joann Zimmerman
• Juniper Networks Warrior
• Peter Southwick
• CCNP SWITCH Portable
• CCNP level
• Command Guide Scott
• Cisco® Switched Networks
• Empson Hans Roth
• Official Certification Guide
• CCNP SWITCH 642 813
• network security
• programming languages​​
• information security
• IDS systems
• Maximum Security
• Guide to Protecting
• Internet Site
• MCSE Training
• Networking Essentials
• Networking Terms
• Terminology
• Local Area Networks
• Wide Area Networks
• ADC
• Krone
• Cable