Chapter 1 Product Overview
Features
1-2
Catalyst 3550 Multilayer Switch Hardware Installation Guide
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Figure 1-1 Catalyst 3550 Switch
Table 1-1 Catalyst 3550 Features
Feature Description
Hardware
• 10 Gigabit Ethernet 10/100/1000BASE-T ports and 2 GBIC-based Gigabit
Ethernet slots
• Support for GBIC modules
–
1000BASE-SX GBIC
–
1000BASE-LX/LH GBIC
–
1000BASE-ZX GBIC
–
1000BASE-T GBIC
–
GigaStack GBIC
Configuration
• Support for Layer 3 features
• Autonegotiation of speed and duplex operation on 10/100/1000 Ethernet ports
• Support for up to 12,000 MAC addresses
• Checks for errors on a received packet, determines the destination port, stores
the packet in shared memory, and then forwards the packet to the destination
port
Power
Redundancy
• Connection for optional Cisco RPS 300 Redundant Power System that operates
on AC input and supplies backup DC output to the switch
10 autosensing 10/100/1000
Ethernet ports
2 GBIC
1
-based Gigabit
module slots
50378
Switch Description
1. GBIC = Gigabit Interface Converter
WS-C3550-12T
M
O
D
E
S
Y
S
T
E
M
R
P
S
S
T
A
T
U
S
U
T
I
L
D
U
P
L
X
S
P
E
E
D
2
1
1
C
a
t
a
l
y
s
t
3
5
5
0
2
3
4
5
6
7
8
9
10