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Cisco Catalyst 2950 Series Switches

Cisco Catalyst 2950 Series Switches for Metro Access
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Cisco Catalyst 2950 Series Switches for Metro Access

Data Sheet Cisco Catalyst 2950 Series Intelligent Ethernet Switches for Metro Access (Enhanced Image) Product Overview
The CiscoCatalyst® 2950 Series Intelligent Ethernet switches is an affordable line of fixedconfiguration Fast Ethernet and Gigabit Ethernet switches that extend intelligence to the metro access edge, enabling service breadth, availability, security, and manageability. Key components of the Cisco Metro Ethernet Switching portfolio, these switches are ideal for service providers looking to deliver profitableEthernet services to the residential and small-office, home-office (SOHO) market. Featuring advanced rate limiting, voice virtual LAN (VLAN) support, and multicast management, these switches enable a variety of residential metro services such as Internet access, voice over IP (VoIP), and broadcast video. The Cisco Catalyst 2950 Series Intelligent Ethernet switches consists of the following devices—which are only available with the Enhanced Image (EI) software for the Cisco Catalyst 2950 Series: • Cisco Catalyst 2950G-48 Switch— 48 10/100 ports and 2 gigabit interface converter (GBIC)based Gigabit Ethernet ports • Cisco Catalyst 2950G-24 Switch— 24 10/100 ports and 2 GBIC ports • Cisco Catalyst 2950G-24-DC Switch—24 10/100 ports, 2 GBIC ports, and DC power • Cisco Catalyst 2950G-12 Switch— 1210/100 ports and 2 GBIC ports • Cisco Catalyst 2950T-24 Switch— 24 10/100 ports and 2 fixed 10/100/1000BaseT uplink ports • Cisco Catalyst 2950C-24 Switch— 24 10/100 ports and 2 fixed 100BaseFX uplink ports • Catalyst 2950ST-24-LRE—24 LRE and 2 Gigabit Ethernet ports (user can select either 10BaseT/100BaseTX/1000BaseT Ethernet Ports or Small Form Factor Pluggable (SFP) Transceivers) • Catalyst2950ST-8-LRE—8 LRE and 2 Gigabit Ethernet ports (user can select either 10BaseT/100BaseTX/1000BaseT Ethernet Ports or Small Form Factor Pluggable (SFP) Transceivers) The two built-in Gigabit Ethernet ports on the Cisco Catalyst 2950G-12, 2950G-24, and 2950G-48 accommodate a range of GBIC transceivers, including the Cisco Course Wave Division Multiplexing (CWDM) GBIC Solution, Cisco GigaStack® GBIC,1000BaseSX, 1000BaseLX/LH, 1000BaseZX and 1000BaseT GBICs. The dual GBIC-based Gigabit Ethernet implementation provides customers with tremendous deployment flexibility— allowing them increased availability with the redundant uplinks. High levels of resiliency can also be implemented by deploying dual redundant Gigabit Ethernet uplinks, UplinkFast and Per-VLAN Spanning Tree Plus (PVST+) for uplinkload balancing. This Gigabit Ethernet flexibility makes the Cisco Catalyst 2950 Series switches an ideal metro access edge complement to the Cisco 7600 Series Internet Router and Cisco Catalyst 6500 Series of metro Ethernet switches.

Intelligence at the Metro Access Edge: Enabling Profitable Ethernet Services
Service providers that address the residential and SOHO market face the continualchallenge of offering compelling value-added services. Although alternative broadband technologies such as DSL can offer bandwidth at speeds ranging up to 1.5 Mbps, the monthly subscriber fees for such speeds can be out of reach for most users. As a result, compelling high-quality services such as high-speed Internet access, VoIP, or broadcast video are often not viable propositions over thesetechnologies. However, in the metro, service providers are discovering that high-performance, Ethernet access over fiber-optic networks can easily provide cost-effective bandwidth of 10 to 100 Mbps. By taking advantage of the simplicity and cost benefits of Ethernet, revenue growth via voice, video, and data services becomes a reality. When considering the deployment of Ethernet services, service...