Exploration_LAN_Switching_Chapter1.ppt

The Internet and Its UsesCisco Public
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ex. PC, printers, IP Phones
Includes routers, switches, bridges, hubs
Controls which devices are allowed to communicate on the network.
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Use of VLANs allows segmentation of traffic
3. Core Layer
High sped backbone
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Principles of Heirarchical Design
Network Diameter - Number of devices that a packet has to cross before it reaches its destination.
Bandwidth Aggregation - Practice of considering the specific bandwidth requirements of each part of the hierarchy.
Redundancy - Creating a highly available network.
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Convergence
Process of combining voice and video communication on a data network.
Needs QOS
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Voice Network
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User Community Analysis
Process of identifying various groupings of users and their impact to network.
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Port Density – Number of ports available on a single switch.
Forwarding rates - Define the processing capabilities of a switch by rating how much data the switch can process per second.
Link Aggregation - helps to reduce these bottlenecks of traffic by allowing up to eight switch ports to be bound together for data communications
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POE(Power Over Ethernet)
Power over Ethernet (PoE) allows the switch to deliver power to a device over the existing Ethernet cabling.
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Describe how a Hierarchical Network Supports the Needs of a Small & Medium-Sized Business
Describe the role of a converged network in supporting small and medium-sized (SMB) business voice, video, and data needs
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Match the Appropriate Cisco Switch to each Layer in the Hierarchical Network Design Model
Identify the considerations used to select a switch for a hierarchical network
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Match the Appropriate Cisco Switch to each Layer in the Hierarchical Network Design Model
Identify the key features of switches that are used in hierarchical networks
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Match the Appropriate Cisco Switch to each Layer in the Hierarchical Network Design Model
Identify the switch features found in each level in a hierarchical network
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Match the Appropriate Cisco Switch to each Layer in the Hierarchical Network Design Model
Identify the Cisco switches used in SMB applications
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Traffic Analysis is used to monitor network performance.
Hierarchical Design Model is composed of 3 layers:
Access
Distribution
Core
Switches selected for each layer must meet the needs of each hierarchical layer as well as the needs of the business.
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