Patton-Fuller Community Hospital has been in business in the City of Kelsey since 1975. The hospital provides high quality medical care to the citizens of Kelsey and the surrounding area. Some of the services the hospital offers are x-rays, pharmacy, and emergency services for children and adults. “As one of the first hospitals in Kelsey, the staff is committed to providing a variety of programs that will support the health and welfare of the local community populations” (Apollo Group, 2010). The hospital’s backbone network structure for the entire hospital is 1000Base T. Some of the other individual sections of the departmental network use different standards such as 1000Base F. The areas that use the 1000Base T are responsible for the administrative side of things. These areas are: hospital executive management, human resources, operations, facilities, finance, and IT data center. The areas that use the 1000Base F are responsible for the clinical areas. They include: radiology, operating rooms, wards, ICU’s, emergency rooms, labs, and pharmacy. For a failsafe, the entire hospital has a complete power backup system that automatically cuts over to a large diesel motor generator set. The hospital uses a network bridge to interconnect its logical network. A network bridge connects multiple network segments at the data link layer, which is Layer 2 of the OSI model. The Data Link Layer enables data to be transferred between network entities and might provide the means to detect and possibly correct errors that may occur in the Physical Layer. The hospital’s network is an Ethernet network. The Ethernet network uses a protocol called CSMA/CD which stands for Carrier Sense, Multiple Access with Collision Detection. The computers that use 1000Base T are networked with Cat. 6 cable. This cable allows for backward compatibility with the Cat. 5 and Cat. 3 cable standards but offers an increase in performance of up to 250 MHZ. The computers that use the 1000Base F are networked with single mode fiber because it performs at high speeds without the need to be refreshed and have higher bandwidth than multimode fiber. In order to have access to the Internet, Patton-Fuller utilizes a Cisco Router model 7609. It is connected with an Optical Carrier 1 line that has speeds of up to 51.84 m/bits. The hospital also utilizes a Cisco ASA 5510 Virtual Private Network which “enables organizations to securely provide network access to a broad array of users, including mobile and fixed endpoints, remote offices, contractors, and business partners” (Cisco, 2010). With combined use, network traffic will flow smoother. The hospital is using a Cisco 1250 series for wireless access. It supports the 802.11standard. “The access points offer combined data rates of up to 600 Mbps to provide users with mobile access to high-bandwidth data, voice, and video applications regardless of their location, use multiple-input multiple-output (MIMO) technology to provide reliable and predictable WLAN coverage, and improve user experience for both existing 802.11a/b/g clients and new 802.11n clients” (Cisco, 2010). The OSI layers that are directly involved in the networking system of Patton-Fuller are the physical layer, data link layer, network layer, transport layer, session layer and application layer. The physical layer is all of the hardware that the hospital uses. This includes such things as the Apple iMacs, servers, and routers. The data link layer is where the data transfer takes place. The network layer routes the messages using TCP/IP. The transport layer ensures that the data is properly sequenced and transferred without errors. It uses the TCP/UDP protocol. The session layer handles the processes between the client and the server. A common protocol used here is RPC. The application layer enables user applications to work with the network. Some common protocols here are HTTP, SMTP, and POP3. I would recommend that the hospital use the TCP/IP, and HTTP...
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