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Cisco 3550 12G - Catalyst Switch - Stackable Manuel d'utilisateur

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Page 1 of 11
D
ATA
S
HEET
Catalyst 3550-12T
Multilayer
Gigabit Ethernet
Switch
Overview
The Catalyst
®
3550-12T 12-port, Multilayer
Gigabit Ethernet switch allows network managers
to increase control of their local-area networks
(LANs) by combining the power of Cisco IOS
®
Intelligent Network Services with the simplicity of
Web-based management. This 1000BaseT
solution enables midmarket customers to
significantly improve their network availability,
scalability, and security by deploying Cisco IOS
Intelligent Network Services in either the network
backbone or top-of-the-stack wiring closet
aggregation using Category 5 copper cabling.
The Catalyst 3550-12T combines a robust feature
set with the simplicity of traditional LAN
switching, including multi-layer services like IP
routing, advanced quality of service (QoS), IP
security as well as the easy-to-use Web-based
Cisco Cluster Management Suite.
The Catalyst 3550-12T Switch is 1.5 rack units
(RU) and features ten 10/100/1000BaseT ports
and two Gigabit Interface Converter
(GBIC)-based 1000BaseX ports.
Figure 1
Catalyst 3550-12T Multi-layer Gigabit
Ethernet switch.
High-Performance Routing in the
Backbone or at the Top of the Stack
With a switching fabric of 24 Gbps, and a
maximum forwarding rate of 12 Gbps, the
Catalyst 3550-12T switch delivers dynamic IP
routing at a 17 Mpps forwarding rate on all ports.
The distributed Cisco Express Forwarding
(CEF)-based routing architecture allows for
increased scalability and performance. This
architecture allows for very high-speed lookups
while also ensuring the stability and scalability
necessary to meet the needs of future
requirements. In addition to a 17 Mpps
forwarding rate, the Catalyst 3550-12T is
perfectly equipped for networks requiring
multicast support. Multicast routing protocols
(PIM) and Internet Group Management Protocol
(IGMP) snooping in hardware make the Catalyst
3550-12T an ideal switch in an intensive
multicast environment.
The Catalyst 3550-12T offers several advantages
to improve network performance when used as a
top-of- the-stack wiring closet aggregator switch.
Implementing routed uplinks from the top of the
stack will improve network availability by
enabling faster failover protection and simplifying
the Spanning-Tree Protocol (STP) algorithm by
terminating all STP instances at the aggregator
switch. If one of the uplinks fail, quicker failover
to the other uplink can be achieved via a scalable
routing protocol such as Open Shortest Path First
05/16/01 7281/JW
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Résumé du contenu

Page 1 - Gigabit Ethernet

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Page 2 - Enhanced Quality of Service

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Page 6 - Clustering Technology

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Page 7 - Security and Redundancy

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