Network & Telecommunications

Running Head : NETWORK TELECOMMUNICATIONS

Network Telecommunications

2007

Network Telecommunications

Many people depend on logical and physical designs for networking and telecommunications ' purposes . In colleges and universities around the world , faculty and staff rely on networking to receive e-mails from students , stay in contact with administration , receive updated information about campus news , and even to grade s . Online /virtual universities depend upon networking even more . For example , the classrooms are networked and students attend them by logging in with a user id and password . All correspondence is submitted by technology

as well . Thus , it is important to understand the difference between a logical design and a physical design within a network

Johnson indicated , The Logical Design would be the IP structure of your network (2002 . It deals with A , B , or C classes address schemes Logical design discusses subnetting environment , number of computers needed , and locations of computers . It caters IP design to needs . The design can be a simple one which means about 10 users (Johnson , 2002

On the other hand , the Physical design will be the topology you will be using (Johnson , 2002 . Physical design types are Ethernet , fiber ISDN , and so forth . This type of design can be star or linear . However the network must have physical cabling , switches , routers , etc . in for the logical design to be implemented (Johnson , 2002

Any time a technician wants to design a network , he /she must first understand the definition of topology as it applies to both physical and logical designs . Topology is .a of any kind of locality in terms of its layout ' `In communication networks , a topology is a usually schematic of the arrangement of a network , including its nodes and connecting lines There are two ways of defining network geometry : the physical topology and the logical (or signal topology (Harris , 2007

In physical topology , which is workstations with geometric layout , there are six different types . These six types include bus network , star network , ring network , Token Ring , Mesh network , and star network . A picture of each of these networks is listed below as a prelude to the summaries of each network type

As shown in picture above , s from top left to bottom center Bus , Star , Token ring , Ring , Mesh , Tree . Picture s located at Searchnetworking .com (2007

Bus network is a direct connection of each workstation to one another in a network

Star network is an indirect connection of each workstation to one another in network through a server /central computer

Ring network is where some workstations are directly connected while others are indirectly connected with data simultaneously being transmitted through at least one transitional node

Token Ring is a type of protocol where signals only travel one way

Mesh network includes a full mesh or a partial mesh . A full mesh has all workstations connected with one another . In a partial mesh , only some workstations are directly connected while others are connected to only those workstations to which they have the most...