Cisco CATALYST 3550 24 PORT 10/100 2 PORT GBIC STANDALONE SWITCH SMI SOFTWARE Specification Guide
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Table 2.
Product Part Numbers Affected by This Announcement
End-of-Sale Product
Part Number
Part Number
Product Description
WS-C3550-12G
10 GBIC + 2 10/100/1000
WS-C3550-12T
10 10/100/1000 + 2 GBIC
WS-C3550-24-SMI
24 10/100 + 2 GBIC Standard Multilayer Image
WS-C3550-24-EMI
24 10/100 + 2 GBIC Enhanced Multilayer Image
WS-C3550-24-FX-SMI
24 100 FX + 2 GBIC Standard Multilayer Image
WS-C3550-48-SMI
48 10/100 + 2 GBIC Standard Multilayer Image
WS-C3550-48-EMI
48 10/100 + 2 GBIC Enhanced Multilayer Image
WS-C3550-24PWR-SMI
24 10/100 PWR + 2 GBIC Standard Multilayer Image
WS-C3550-24PWR-EMI
24 10/100 PWR + 2 GBIC Enhanced Multilayer Image
PRODUCT MIGRATION OPTIONS
The recommended replacements for Cisco Catalyst 3550 Series switches are the Cisco Catalyst 3750 Series switches and the Cisco Catalyst 3560
Series switches. Table 3 provides a comparison between these three product lines. Table 4 lists the part numbers affected by this end-of-sale
announcement and identifies the recommended replacement product(s).
Unique to the Cisco Catalyst 3750 Series is Cisco StackWise, a revolutionary stacking architecture that brings high levels of resiliency, automation,
and performance to stackable switches. With Cisco StackWise technology, customers can create a single, 32-Gbps switching unit with up to nine
Cisco Catalyst 3750 Series switches. A working stack is self-managing and self-configuring. When switches are added or removed, the master
switch automatically loads the Cisco IOS
®
Software release running on the stack to the new switch, loads the global configuration parameters, and
updates all routing tables to reflect the changes.
The Cisco Catalyst 3560 Series is a line of fixed-configuration, enterprise-class switches that is ideal in the access layer for small enterprise LAN
access or branch-office environments. Both the Cisco Catalyst 3750 Series and Cisco Catalyst 3560 Series support IEEE 802.3af PoE and Cisco
prestandard PoE functionality in Fast Ethernet and Gigabit Ethernet configurations. By combining both high-density Gigabit Ethernet and PoE,
customers gain maximum productivity and investment protection by enabling the deployment of new applications such as IP telephony, wireless
access, video surveillance, building management systems, and remote video kiosks.
Cisco Catalyst switches must also protect the users and servers attached to them. Unlike attacks that are disruptive to the network, many attacks
against users and servers can go undetected. These attacks use common tools that can be downloaded from the Internet. Both the Cisco Catalyst
3750 Series and Cisco Catalyst 3560 Series support features such as Dynamic ARP Inspection, IP Source Guard, and DHCP Snooping in the Cisco
IOS Software Standard Multilayer Image (available by July 2005). These software features mitigate many of the increasingly common internal
security threats seen in LANs and defend against a variety of man-in-the-middle and spoofing attacks.
Table 3.
Product Comparisons
Feature
Cisco Catalyst 3750
Cisco Catalyst 3560
Cisco Catalyst 3550
Interconnect technology
StackWise (32-Gbps interconnect)
SFP interconnect cable
(1-Gbps interconnect)
(1-Gbps interconnect)
GigaStack
®
GBIC
(1-Gbps interconnect)
Jumbo frame support
Yes (10/100/1000 ports)
Yes (10/100/1000 ports)
–
Auto-MDIX
Yes
Yes
–
TDR
Yes (GE ports)
Yes (GE ports)
–