A 2 Chapter 2 Network Classification Why do Wans not operate at as high speed as LANs do? The communication circuits that make up A WaN exist in a much harsher environment Than those of a lan more likely to experience errors Expensive leased lines network Management and operation www.gxmu.edu.cn
Network Management and Operation Why do WANs not operate at as high speed as LANs do ? The communication circuits that make up A WAN exist in a much harsher environment Than those of a LAN. more likely to experience errors. Expensive leased lines . www.gxmu.edu.cn Chapter 2 Network Classification
Chapter 2 Network Classification 2. 4 NETWORKS CLASSIFIED BY TOPOLOGY Network Topology The configuration of a communication network- he way the circuits are connected together 3。解 Fuyc。 anette LIne Tree Bus The primary purpose of the network topology isn't to indicate the technology used by the network network Management and operation www.gxmu.edu.cn
Network Management and Operation 2.4 NETWORKS CLASSIFIED BY TOPOLOGY Network Topology : The configuration of a communication networkthe way the circuits are connected together. www.gxmu.edu.cn *The primary purpose of the network topology isn't to indicate the technology used by the network. Chapter 2 Network Classification
Chapter 2 Network Classification 4.1 Star network g5 All circuits radiate from a central node, which is often a cluster of servers or a host computer It is still often used for voice network Nodes Hub 交换机 Star networks can have a maximum of six arms F
Network Management and Operation 2.4.1 Star network All circuits radiate from a central node, which is often a cluster of servers or a host computer. It is still often used for voice network. www.gxmu.edu.cn Star networks can have a maximum of six arms F Chapter 2 Network Classification
Chapter 2 Network Classification Advane and Disa vance >ease to manage and control network >If central node is down >Protocol was network is out of servicel relatively simple >Star confiquration >In times of peak traffic I was easy to Central node may implement become overloaded network Management and operation www.gxmu.edu.cn
Network Management and Operation www.gxmu.edu.cn ➢ease to manage and control network. ➢Protocol was relatively simple. ➢Star configuration was easy to implement. Chapter 2 Network Classification ➢If central node is down, network is out of service. ➢In times of peak traffic, Central node may become overloaded. Advance and Disadvance
Chapter 2 Network Classification 4.2 Hierarchica network A network in which the top node in the structure is called the root node is called a hierarchical network It has a tree structure At least three levels in the hierarchy. WHY Two levels= equality network Management and operation www.gxmu.edu.cn
Network Management and Operation 2.4.2 Hierarchical network A network in which the top node in the structure is called the root node is called a hierarchical network. It has a tree structure. At least three levels in the hierarchy .WHY? Two levels= equality www.gxmu.edu.cn tree Chapter 2 Network Classification