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  1. Implementing a Network Design
  2. Selecting Network Devices
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This chapter is from the book

Selecting Network Devices

When designing a network, it is important to select the proper hardware to meet current network requirements and to allow for network growth. Within an enterprise network, both switches and routers play a critical role in network communication.

Selecting Switch Hardware

Match the business consideration on the left with the switch feature on the right. This is a one-to-one matching exercise.

Business Consideration

Switch Feature

  • _______ Should provide continuous access to the network
  • _______ Daisy-chain switches with high-bandwidth throughput
  • _______ Refers to a switch’s ability to support the appropriate number of devices on the network
  • _______ Ability to adjust to growth of network users
  • _______ How fast the interfaces will process network data
  • _______ Important consideration in a network where there may be congested ports to servers or other areas of the network
  • _______ Provides electrical current to other device and support redundant power supplies
  • _______ Switches with preset features or options
  • _______ Depends on the number and speed of the interfaces, supported features, and expansion capability
  • _______ Switches with insertable switching line/port cards
  • a. Reliability
  • b. Modular
  • c. Power
  • d. Stackable
  • e. Frame buffers
  • f. Cost
  • g. Fixed configuration
  • h. Scalability
  • i. Port speed
  • j. Port density

Packet Tracer - Comparing 2960 and 3560 Switches (SN 1.2.1.7/SwN 1.1.2.5)

packet_tracer.jpg

Selecting Router Hardware

In Table 1-1, select the router category that applies to each description.

Table 1-1 Identify Router Category Features

Router Description

Branch Routers

Network Edge Routers

Service Provider Routers

Fast performance with high security for data centers, campus, and branch networks

Simple network configuration and management for LANs and WANs

Optimizes services on a single platform

End-to-end delivery of subscriber services

Deliver next-generation Internet experiences across all devices and locations

High capacity and scalability with hierarchical quality of service

Maximizes local services and ensures 24/7/365 uptime

Unites campus, data center, and branch networks

Managing Devices

A basic router or switch configuration includes the hostname for identification, passwords for security, and assignment of IP addresses to interfaces for connectivity. A router configuration also includes basic routing.

In addition to configuration commands, router and switch verification commands are used to verify the operational status of the router or switch and related network functionality. Use the address scheme in Table 1-2 in the following exercises that review the most common router and switch configuration and verification commands.

Table 1-2 Router and Switch Addressing Table

Device

Interface

IPv4 Address

Subnet Mask

Default Gateway

R1

G0/0

172.16.1.1

255.255.255.0

N/A

S0/0/0

172.16.3.1

255.255.255.252

N/A

S0/0/1

192.168.10.5

255.255.255.252

N/A

S1

VLAN 1

192.168.1.5

255.255.255.0

192.168.1.1

Basic Router Configuration Review

Using Table 1-2 and the following requirements, record the commands, including the router prompt, to implement a basic router configuration:

  • Hostname is R1.
  • Console and Telnet line’s password is cisco.
  • Privileged EXEC password is class.
  • Banner message-of-the-day.
  • Interface addressing.
  • OSPF routing, including an appropriate router ID.
  • Save the configuration.
Router(config)# __________________________________________________________________________
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Basic Router Verification Review

In Table 1-3, record the verification command that will generate the described output.

Table 1-3 Router Verification Commands

Command

Command Output

Displays the routing table for known networks, including administrative distance, metric, and outbound interface

Displays information about routing protocols, including process ID, router ID, and neighbors

Displays information about directly connected Cisco devices

Displays all interfaces in an abbreviated format, including IP address and status

Displays information about neighbors, including router ID, state, IP address, and local interface that learned of neighbor

Displays one or all interfaces, including status, bandwidth, and duplex type

Basic Switch Configuration Review

Using Table 1-2 and the following requirements, record the commands, including the switch prompt, to implement a basic switch configuration:

  • Hostname is S1.
  • Console and Telnet line’s password is cisco.
  • Privileged EXEC password is class.
  • Banner message-of-the-day.
  • VLAN 1 interface addressing.
  • Save the configuration.
Switch(config)# __________________________________________________________________________
__________________________________________________________________________________________
__________________________________________________________________________________________
__________________________________________________________________________________________
__________________________________________________________________________________________
__________________________________________________________________________________________
__________________________________________________________________________________________
__________________________________________________________________________________________
__________________________________________________________________________________________
__________________________________________________________________________________________
__________________________________________________________________________________________
__________________________________________________________________________________________
__________________________________________________________________________________________
__________________________________________________________________________________________
__________________________________________________________________________________________

Basic Switch Verification Review

In Table 1-4, record the verification command that will generate the described output.

Table 1-4 Router Verification Commands

Command

Command Output

Displays information about directly connected Cisco devices

Displays all secure MAC addresses

Displays a table of learned MAC addresses, including the port number and VLAN assigned to the port

Displays one or all interfaces, including status, bandwidth, and duplex type

Displays information about maximum MAC addresses allowed, current counts, security violation count, and action to be taken

Packet Tracer - Skills Integration Challenge (SN 1.3.1.2)

packet_tracer.jpg
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