Thông tin tài liệu:
Learning objectives of this chapter include: Identify the basic network media required to make a LAN connection; identify the types of connections for intermediate and end device connections in a LAN; design an addressing scheme for an inter-network and assign ranges for hosts, network devices and the router interface; compare and contrast the importance of network designs.
Nội dung trích xuất từ tài liệu:
Lecture CCNA Exploration 4.0 (Kỳ 1) - Chapter 10: Planning and Cabling Networks
Planning and Cabling
Networks
Planning and Cabling
NetworksNetwork Fundamentals – Chapter 10
Objectives
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Objectives
Identify the basic network media required to make a LAN
connection.
Identify the types of connections for intermediate and end
device connections in a LAN.
– Identify the pin out configurations for straight-through
and crossover cables.
– Identify the different cabling types, standards and ports
used for WAN connections.
– Define the role of device management connections
when using Cisco equipment.
Design an addressing scheme for an inter-network and
assign ranges for hosts, network devices and the router
interface.
Compare and contrast the importance of network designs
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LANs –
Making the Physical Connections
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Choosing the Appropriate LAN Device
10.1.1.1
Choosing the Appropriate LAN Device
10.1.1.2
A hub is typically chosen as an intermediary device
within a very small LAN, in a LAN that requires low
throughput requirements, or when finances are
limited.
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Device Selection Factors
10.1.2.1
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Device Selection Factors
10.1.2.2
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Device Selection Factors
The cost of a switch is determined by
1.Capacity (port available and switching
speed)
2.Features
3.Network management capabilities
4.Embedded security technologies
5.Optional advanced switching
technologies
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Device Selection Factors
Speed and Types of Ports/Interfaces
10.1.2.3
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Device Selection Factors
Speed and Types of Ports/Interfaces
Would you purchase a switch with:
–Just enough ports for today's
needs?
–A mixture of UTP speeds?
–Both UTP and fiber ports?
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Device Selection Factors
10.1.2.4
Factors to Consider in Choosing a Router
Similar to the switch, cost and interface types and
speeds must be considered as well.
Additional factors:
1. Expandability
2. Media
3. Operating System Features
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Device Selection Factors
Expandability
1. Fixed configurations
2. Modular devices
3. Most modular devices come with a basic number
of fixed ports as well as expansion slots.
4. Select the appropriate modules and interfaces for
the specific media.
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Device Selection Factors
Operating System Features
1. Security
2. Quality of Service (QoS)
3. Voice over IP (VoIP)
4. Routing multiple Layer 3
protocols
5. Special services such as
NAT and DHCP
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Device Interconnections
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LAN and WAN – Getting Connected
10.2.1.1
(vertical cabling)
(Distribution cabling)
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Extra: LAN design
Main Distribution Facility (MDF).
Intermediate Distribution Facilities (IDFs)
Point of Presence (POP)
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LAN and WAN – Getting Connected
(permanent link )
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LAN and WAN – Getting Connected
Telecommunications Room
Is where connections to intermediary devices
take place.
Patch cords connects between the patch
panels and the intermediary devices.
Patch cables also interconnect these
intermediary devices.
Also contains the servers used by the
network.
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LAN and WAN – Getting Connected
Horizontal Cabling
To connect the telecommunication rooms with the work
areas, 90 meters max.
This 90 meter maximum horizontal cabling distance is
referred to as the permanent link because it is installed in
the building structure.
Backbone Cabling, or vertical cabling
To connect the telecommunication rooms to the equipment
rooms, where the servers are often located. Also
interconnects multiple telecommunications rooms.
Sometimes routed outside the building to the WAN
connection or ISP.
Be used for aggregated traffic. Backbones typically require
high bandwidth media such as fiber-optic cabling.
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