Upgrading SAP Oryol branch of the Moscow Railways

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Uploaded: 23.03.2012
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Description

Diploma project entitled "Modernization of the SAP Oryol branch of the Moscow Railways"

The corporate network - is a complex system that includes thousands of different components: the computers of different types, ranging from desktop and

ending meynfremami, system and application software, network adapters, hubs, switches and routers, cable

system. The main task of the developer of such a network is that it is very cumbersome and expensive system as best as possible

I cope with the processing of the flow of information circulating between employees of the company and allow them to take timely and

rational solutions to ensure the survival of the company in the fierce competition. And since life is not in place, then the content

corporate information, the intensity of its flow and its methods of treatment are constantly changing.

Additional information


Introduction 5
1. The information network 7
1.1 Corporate Network 7
1.1.1 Network 12 departments
1.1.2 campus network 14
1.1.3 Network enterprise 15
1.2 Requirements for computer setjan 17
1.2.1. Performance 18
1.2.2. Reliability and safety 21
1.2.3. Extensibility and Scalability 22
1.2.4. Transparency 23
1.2.5. Support for different types of traffic 24
1.2.6. Manageability 25
1.2.7. Compatibility 26
1.2.8. Quality of service 26
1.3. Ethernet Technology 27
1.3.1. Access Method CSMA / CD 28
1.3.2. Conflicts of 29
1.3.3. Frame formats Ethernet technology 30
1.3.3.1. Frame 802.3 / LLC 31
1.3.3.2 Frame Raw 802.3 / Novell 802.3 33
1.3.3.2. Frame Ethernet DIX / Ethernet II 33
1.3.3.3 Frame Ethernet SNAP 34
1.4. 35 collision domains
1.4.1. The physical layer technology Fast Ethernet 35
1.4.2. Physical layer 100Base-TX 39
1.4.3. Restrictions on the length of the segments of the DTE-DTE 41
1.4.3.1. Restrictions networks Fast Ethernet, built on 41 repeaters
1.4.3.2. Gigabit Ethernet on twisted pair category 5 44
1.5. The role of routers and switches on the corporate network. 46
1.5.1 Types of routers 47
1.5.2. Routing protocols 49
1.5.3. Integrated services 51
1.5.4. Implementations of the queue 54
1.5.5. Access channels 57
1.6. Switches 59
1.6.1. Modes of operation 61
1.6.2. A brief overview of the architecture of the switch 62
1.6.3. Types of switching 65
1.6.4. Additional Features 68
1.6.5. The design of the switch 72
1.6.5.1 Switches to the common bus 73
1.6.5.2 switches with shared memory 74
1.6.5.3. Combined switch 75
2. ANALYSIS OF THE EXISTING NETWORK NODE 77
3. Development of technical proposals for the modernization CORPORATE NETWORK NODE NORTHWEST Volgograd branch of Volga Region Railway

ROAD 82
4. CALCULATION OF THE CAPACITY 88
5. BUSINESS PLAN OF MODERNIZATION OF NORTHWEST LAN NODE Volgograd branch of the Volga Railroad 95
5.1. Funds for the project 96
5.2. Financial Plan 97
5.3. The estimated cost of the project 97
5.4.

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