Multilayer Switch User Manual

CHAPTER
1-1
Catalyst 3550 Switch Hardware Installation Guide
OL-6155-01
1
Product Overview
The Catalyst 3550 family of multilayer switches—also referred to as the switches—are stackable
Ethernet switches to which you can connect workstations, Cisco IP Phones, and other network devices
such as servers, routers, and other switches. These switches also can be deployed as backbone switches,
aggregating Gigabit Ethernet traffic from other network devices.
This chapter provides a functional overview of the Catalyst 3550 switch models. These topics are
included:
• Features, page 1-1
• Front-Panel Description, page 1-4
• Rear-Panel Description, page 1-10
• Management Options, page 1-11
Features
Figure 1-1 and Figure 1-2 show the Catalyst 3550 switch models, and Table 1-1 describes the
switch features.
Figure 1-1 Catalyst 3550-12T and 3550-12G Switch Models
M
O
D
E
S
Y
S
T
E
M
R
P
S
S
T
A
T
U
S
U
T
IL
D
U
P
L
X
S
P
E
E
D
2
1
1
Catalyst 3550
2
34
56
7
89
10
M
O
D
E
S
Y
S
T
E
M
R
P
S
S
T
A
T
U
S
U
T
IL
D
U
P
L
X
S
P
E
E
D
2
1
4
3
6
5
8
7
10
9
Catalyst 3550
11
12
10 autosensing 10/100/1000
Ethernet ports
2 GBIC
1
-based Gigabit
module slots
2 autosensing 10/100/1000
Ethernet ports
10 GBIC-based Gigabit
module slots
Switch Description
WS-C3550-12T
WS-C3550-12G
1. GBIC = Gigabit Interface Converter
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