When a Catalyst 2950 Switch is combined with a Catalyst 3550 Series Switch, the solution enables IP routing from the edge to the core of the network. Embedded in the Catalyst 2950 Series is the Cisco Cluster Management Suite (CMS) Software, which allows users to simultaneously configure and troubleshoot multiple Catalyst desktop switches using a standard Web browser. Cisco CMS Software provides new configuration wizards that greatly simplify the implementation of converged applications and network-wide services.

Features

• IEEE 802.1D Spanning-Tree Protocol support for redundant backbone connections and loop-free networks simplifies network configuration and improves fault tolerance.
  
  
• Support for Cisco Spanning-Tree Protocol enhancements such as UplinkFast, BackboneFast and PortFast technologies ensure quick fail-over recovery enhancing overall network stability and availability.
  
  
• Cisco CrossStack UplinkFast technology extends UplinkFast to a stack to ensure quick fail-over recovery enhancing network stability and availability.
  
  
• Support for Cisco"s optional, 300-watt redundant AC power system provides a backup power source for up to four units for improved fault tolerance and network uptime.
  
  
• Redundant stacking connections provide support for a redundant loopback connection for top and bottom switches in an independent stack backplane cascaded configuration.
  
  
• Command switch redundancy enabled in the Cisco Cluster Management Suite (CMS) Software allows customers to designate a backup command switch that takes over cluster management functions if the primary command switch fails.
  
  
• Provides unidirectional link detection (UDLD) for detecting and disabling unidirectional links on fiber-optic interfaces caused by incorrect fiber-optic wiring or port faults.
  

Specifications

• Performance
  • 13.6-Gbps switching fabric
  • 10.1 Mpps wire-speed forwarding rate
  • 6.8-Gbps maximum forwarding bandwidth
  • 8 MB packet buffer memory architecture shared by all ports
  • 16 MB DRAM and 8 MB Flash memory
  • 8,000 MAC addresses
    
    
• Management
  SNMP Management Information Base (MIB) II, SNMP MIB extensions, Bridging MIB (RFC 1493)
  
  
• Connectors and Cabling
  • 10BaseT ports: RJ-45 connectors, two-pair Category 3, 4, or 5 unshielded twisted-pair (UTP) cabling
    
  • 100BaseTX ports: RJ-45 connectors; two-pair Category 5 UTP cabling
    
  • 1000BaseT ports: RJ-45 connectors; two-pair Category 5 UTP cabling
    
  • 1000BaseSX, -LX/LH, -ZX GBIC-based ports: SC fiber connectors, single-mode or multimode fiber
    
  • Cisco GigaStack GBIC ports: copper-based Cisco GigaStack cabling
    
  • 100BaseFX ports: MT-RJ connectors, 50/125 or 62.5/125 micron multi-mode fiber-optic cabling
    
    
• Management console port
  8-pin RJ-45 connector, RJ-45-to-RJ-45 rollover cable with RJ-45-to-DB9 adapter for PC connections. For terminal connections, use RJ-45-to-DB25 female DTE adapter (can be ordered separately from Cisco. Part Number: ACS-DSBUSYN=)
  
  
• Indicators
  Per-port status LEDs: link integrity, disabled, activity, speed, and full-duplex indications System status LEDs: system, RPS, and bandwidth utilization indications
  
  
• Dimensions (H x W x D):
  • 1.72 x 17.5 x 13 in. (4.3.6 x 44.5 x 33.02 cm)
  • One rack-unit (RU) high (1.72 in./4.36 cm)
    
    
• Weight:
  10 lb (4.5 kg)
  
  
• Operating temperature
  32 to 113°F (-5 to 45°C)
  
  
• Storage temperature
  -13 to 158°F (-25 to 70°C)
  
  
• Operating relative humidity
  10 to 85% (non-condensing)
  
  
• Operating altitude
  Up to 10,000 ft (3,000 m)
  
  
• Storage Altitude
  Up to 15,000 ft (4,500 m)