Wide Area Network (WAN) is a data communication network connecting users on the network in a geographic area large. WAN has several important characteristics that distinguish it LAN. In the first lesson in this module will discuss the introduction of WAN technologies and protocols. And also will explain how the similarities and the difference between WAN and LAN.
It is very important to understand the physical layer components in a router. This knowledge will add to the basic information and skills that will required to configure the router and set the routing network. This module also describes the techniques of physical connection of various router interfaces.
It is very important to understand the physical layer components in a router. This knowledge will add to the basic information and skills that will required to configure the router and set the routing network. This module also describes the techniques of physical connection of various router interfaces.
1. WAN
1.1 Introduction WAN
WAN is a data communications network that spread in a geographic area such a large province or country. WAN always use the transmission facilities provided by telecommunications companies such as telephone service company.
Characteristics of WAN:
Connected to the equipment spread over a wide geographic area Using public service channels, such as telecommunications companies. PT. Telkom, PT. Indosat, PT. Excelcomindo and others to form a network in Dalan area these geographic. Using serial connections to access bandwidth across these geographic areas.
WAN different from the LAN. Unlike LAN-connected workstations
workstations, equipment, terminals and other equipment of a building Dalan, WAN
linking data in a wide geographic area. Companies
using a WAN can connect between headquarters and offices
branches are located at a distance.
A WAN operates at the physical layer and layer of the OSI data link layer. WAN
connecting LANs in a wide geographic area. WAN capable
do pertukakaran data packets and frames between routers and switches.
Here are the tools used by Dalan WAN:
Routers, including internetworking and WAN interface ports Modem, including voice-grade interfaces, channel service units / digital service units (CSU / DSU) that serve the T1/E1 interface, and the Terminal Adapter / Network Termination 1 (TA / NT 1) as an interface Integrated Services Digital Network (ISDN) Dial in servers and users who do dial out to make connections
DOWNLOAD MODULE WAN
