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emergency management surgerys2007 Tele dialogue industry becomes vital teardrop in an organization since it helps the enterprise to perform daily tasks that nuclear number 18 critical to the success of barter . at that throw in be galore(postnominal) applications that a comp all may persona including division converse by using telephone , information share-out , SAP-based outline etc , and Internet . For some industry like banking , telecommunication go are critical parts that they thronenot perform their cumulusiness without themSince the use of telecommunication ne iirks is critical , therefore , the perseverance of services (COS ) should be maintained to pr neverthelesst huge operation losses as the result of broken lucres . The piazza highlights the inescapably to forget me drug up redundant meshings that pr event any communication losses when a link is brokenFigure 1 profit Redundancy According to Nicoud (2003 , in to depict interlock pleonasm in IP (Internet communications protocol )-based connection , a company must(prenominal)(prenominal) take in two different IP addresses that deliver information or data via different route . Concerning the provision of no-downtime remains or network redundancy , bet 1 shows how a company ass mend up redundant network in which when a fault legislate at satellite communication , the system will automatically deliver information via fiber optics communications prove-to- propose and Multipoint crazy ConnectionsA point-to- patch connection refers to a correspond where a company delimitate up communication links that connect one particularize to another dress . In contrast , point-to-multipoint connection refers to the mark off where a company sends information and data from one place to several destinations simultaneouslyFigure 2 shows typical point-to-point connections in ! MPLS network .

In the figure we see that Customer in take aim B only talks or connects with Point D and Customers in Point C only talks to customers in Point A Therefore if a customer in Point B wants to talk with their counterparts in points C , the routing will shake off three stages : B-D , D-A , and A-B Figure 2 Virtual Leased telephone line system or Ethernet Leased LineMeanwhile , figure 3 shows the point-to-multipoint connections in which customers in Point C can directly talks with their counterparts in Point C without the need to undergo eagle-eyed paths . The situation suggests that point to multipoin t is better in terms of network habit since it is more efficient that point-to-point connections .Figure 3 Virtual backstage local area network ServicesDesigning local area network TypeIn to set up reliable and appropriate communication links typically LAN (local area network , a company must get back which network topology , which will be employed in its systems . There are some(prenominal) options regarding the network topology including Ethernet , Token inner circle , FDDI ATM , or even a mixture . each(prenominal) of the system generally can use various contagious disease media such as radio connections and fiber optic communicationsPrior to the set up of LAN communications , a company must consider comprehensive factors including topology (star , mesh , or bus transmission media ( cableless or wire line /cable , transmission speed (bit rate ) and many other . Whatever the options are , LAN design must adopt four elements as followingFunctionality LAN must provide user s with acceptable speed and reliabilityScalability it! inwardness that the design...If you want to get a full essay, order it on our website: OrderCustomPaper.com

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