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Expansion slots 0 0 2 0
Enterprise Edition Yes Yes Yes Yes
Standard Edition No No No No
Backplane 1.2Gbps 1.2Gbps 1.2Gbps 24Gbps
Flash 4MB 8MB 12MB 0
RAM 20MB 32MB 64MB NA
Modularity No No Yes NA
Forwarding rate 1 million pps 1 million pps 1 million pps 18 million pps
Max VLANs 1,024 1,024 1,024 N/A
Cisco Catalyst 3000
The Cisco Catalyst 3000 has a completely different architecture than any other Cisco switch. However, this
series of switches received an End−of−Life (EOL) notice from Cisco, so we will include only a basic
overview in this chapter.
The Catalyst 3000 series provides the following features:•
Stacked switch platforms that are manageable as if they were a single logical entity. These switches
automatically configure themselves as new switches are added or removed.
•
Cut−through switching technology delivering wire−speed, low−latency switching. The Catalyst 3000
also has the ability to use FragmentFree or Runtless switching, which automatically changes to
store−and−forward when an error rate has been exceeded.
•
Optional modules to provide additional interfaces for more Ethernet ports, Fast Ethernet ports, ATM
ports, and WAN connectivity.
•
User definable per−port and secure−mode filtering that provides access control for sensitive
information resources.
•
Support for up to 64 VLANs using Cisco’s LAN Emulation (LANE)−based ATM, and ISL−based
Fast Ethernet VLANs to extend switched VLANs throughout the enterprise.
•
Spanning−Tree Protocol (STP) implemented by VLAN for loop detection.•
An optional stack port interface module that connects one 3000 series switch to another. This Catalyst
Matrix delivers 280Mbps per switch of bandwidth for unrestricted traffic flow.
•
Some of the basic hardware features of the Cisco Catalyst 3000 series of switches are listed in Table E.5.
Table E.5: The key features of the Cisco Catalyst 3000 series switches.
Feature 3000 3100 3200
10BaseT ports 16 24 0
Flex slots 0 1 1
Expansion slots 0 1 7
Max VLANs 1,700 1,700 1,700
Cisco Catalyst 3500 Series XL
The Cisco Systems Catalyst 3500 series XL is a scalable line of stackable 10/100 and Gigabit Ethernet
switches. These switches provide high performance and investment protection for companies that are
expanding their switched networks. The three major applications for the 3500 series XL are as follows:
In the enterprise wiring closet at the enterprise edge, aggregated to a larger Catalyst switch•
In a branch office where it can provide a LAN backbone and desktop connectivity•
In a multilayer network where it can be deployed with a Layer 3 switch for a low cost solution•
Each Catalyst 3500 XL comes with 2 Gigabit Ethernet interfaces that come with 12, 24, or 48 Gigabit
Interface Converter (GBIC) ports and auto−sensing 10BaseT/100BaseTX ports. The 3508G XL provides eight
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