Cisco Systems 2950, 2955 Network Configuration Examples

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Catalyst 2950 and Catalyst 2955 Switch Software Configuration Guide
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Chapter 1 Overview
Network Configuration Examples
Network Configuration Examples
This section provides network configuration concepts and includes examples of using the switch to
create dedicated network segments and interconnecting the segments through Fast Ethernet and Gigabit
Ethernet connections.
• “Design Concepts for Using the Switch” section on page 1-11
• “Small to Medium-Sized Network Configuration” section on page 1-14
• “Collapsed Backbone and Switch Cluster Configuration” section on page 1-15
• “Hotel Network Configuration” section on page 1-16
• “Service-Provider Central-Office Configuration” section on page 1-18
• “Large Campus Configuration” section on page 1-20
• “Multidwelling Network Using Catalyst 2950 Switches” section on page 1-21
• “Long-Distance, High-Bandwidth Transport Configuration” section on page 1-23
Design Concepts for Using the Switch
As your network users compete for network bandwidth, it takes longer to send and receive data. When
you configure your network, consider the bandwidth required by your network users and the relative
priority of the network applications they use.
Table 1-3 describes what can cause network performance to degrade and how you can configure your
network to increase the bandwidth available to your network users.
Bandwidth alone is not the only consideration when designing your network. As your network traffic
profiles evolve, consider providing network services that can support applications such as voice and data
integration and security.
Table 1-4 describes some network demands and how you can meet those demands.
Tab l e 1-3 Increasing Network Performance
Network Demands Suggested Design Methods
Too many users on a single network segment
and a growing number of users accessing the
Internet
• Create smaller network segments so that fewer users share the
bandwidth, and use VLANs and IP subnets to place the network
resources in the same logical network as the users who access those
resources most.
• Use full-duplex operation between the switch and its connected
workstations.
• Increased power of new PCs,
workstations, and servers
• High demand from networked
applications (such as e-mail with large
attached files) and from
bandwidth-intensive applications (such
as multimedia)
• Connect global resources—such as servers and routers to which network
users require equal access—directly to the Fast Ethernet or Gigabit
Ethernet switch ports so that they have their own Fast Ethernet or Gigabit
Ethernet segment.
• Use the Fast EtherChannel or Gigabit EtherChannel feature between the
switch and its connected servers and routers.