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Figure 1. Cisco Catalyst 2950 Series Switches

This complete set of switches offers network managers flexibility when selecting a migration path to Gigabit Ethernet. The two built-in Gigabit

Ethernet ports on the Cisco Catalyst 2950G-12, 2950G-24 and 2950G-48 accommodate several GBIC transceivers, including the Cisco GigaStack

1000BASE-SX, 1000BASE-LX/LH, 1000BASE-ZX, 1000BASE-T, and coarse wavelength-division multiplexing (CWDM) GBICs. The dual

GBIC-based Gigabit Ethernet implementation provides customers with tremendous deployment flexibility—giving them increased availability with

redundant uplinks. In sum, the configuration permits customers to implement one type of stacking and uplink configuration today, while preserving

the option to migrate to another configuration in the future. High levels of stack resiliency can also be implemented by deploying dual-redundant

Gigabit Ethernet uplinks, a redundant Cisco GigaStack GBIC loopback cable, UplinkFast and CrossStack UplinkFast technologies for high-speed

uplink and stack interconnection failover, and Per-VLAN Spanning Tree Plus (PVST+) for uplink load balancing.

In addition, the Cisco Catalyst 2950T-24 offers small and medium-sized enterprises server connectivity and an easy migration path to Gigabit by

using existing copper cabling infrastructure. Implementing Gigabit Ethernet over copper allows network managers to boost network performance

and maximize infrastructure investments in Category 5 copper cabling.

Maximum power availability for a converged voice and data network is attainable when a Cisco Catalyst 2950 Switch is combined with the Cisco

Redundant Power System 675 for protection against internal power supply failures and an uninterruptable power supply (UPS) system to safeguard

against power outages.

ADDITIONAL CISCO CATALYST 2950 SERIES SWITCHES

Cisco Catalyst 2950 Series with Standard Image Software

The Cisco Catalyst 2950SX-48-SI, 2950T-48-SI, 2950SX-24, 2950-24 and 2950-12 are standalone, fixed-configuration, managed 10/100 switches

providing basic workgroup connectivity for small to medium-sized companies. These wire-speed desktop switches come with Cisco Standard Image

software features and offer Cisco IOS

Cisco Catalyst 2950 Series Long-Reach Ethernet (LRE) Switches

Cisco Catalyst 2950ST-24-LRE—24 LRE ports, 2 fixed 10/100/1000BASE-T ports, and 2 Small Form-Factor Pluggable (SFP) ports (two of the

four uplinks active at one time)

Cisco Catalyst 2950ST-8-LRE—Eight LRE ports, two fixed 10/100/1000BASE-T ports, and two SFP ports (two of the four uplinks active at

one time)

The Cisco Catalyst 2950 Series LRE solution delivers cost-effective, high-performance broadband access over existing phone wiring in enterprise

campus environments and multi-tenant buildings (for example, hotels, apartment buildings, and office buildings). Cisco Catalyst 2950 LRE switches

include the Cisco Enhanced Image software features, enabling enterprise and service provider customers to extend intelligent services over

traditional wiring (Category 1/2/3) to distances up to 5000 feet. Cisco is the only company with the breadth of technologies that allows customers to

Important notices, privacy statements, and trademarks of Cisco Systems, Inc. can be found on cisco.com.

Software functions for basic data, video, and voice services at the edge of the network.

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