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Catalyst 3750 Switch Software Configuration Guide
OL-8550-02
Chapter 1 Overview
Network Configuration Examples
You can have redundant uplink connections, using SFP modules in the switch stack to a Gigabit
backbone switch, such as a Catalyst 4500 or Catalyst 3750-12S Gigabit switch. You can also create
backup paths by using Fast Ethernet, Gigabit, or EtherChannel links. If one of the redundant
connections fails, the other can serve as a backup path. If the Gigabit switch is cluster-capable, you
can configure it and the switch stack as a switch cluster to manage them through a single IP address.
The Gigabit switch can be connected to a Gigabit server through a 1000BASE-T connection.
Figure 1-1 Cost-Effective Wiring Closet
• High-performance wiring closet (Figure 1-2)—For high-speed access to network resources, you can
use Catalyst 3750switches and switch stacks in the access layer to provide Gigabit Ethernet to the
desktop. To prevent congestion, use QoS DSCP marking priorities on these switches. For high-speed
IP forwarding at the distribution layer, connect the switches in the access layer to a Gigabit
multilayer switch in the backbone, such as a Catalyst 4500 Gigabit switch or Catalyst 6500 Gigabit
switch.
Each switch in this configuration provides users with a dedicated 1-Gbps connection to network
resources. Using SFP modules also provides flexibility in media and distance options through
fiber-optic connections.
Si
Catalyst 3750
Layer 2
StackWise
switch stack
Catalyst
Gigabit Ethernet
multilayer switch
Gigabit
server
86927
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