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This is an auction for a good Quality Cisco Catalyst 1900 series Switch unit. It is a 12 port 10/T with 100 Base connection This is a rack mount or desktop. This is a recent procurement's from a government surplus, pulled out of service good. We have currently only 1 of these. We have this, and lots of other good computer surplus items. We have a huge inventory of PC Legacy parts of all types, and surplus items from HP, Compaq, Dell, & Gateway in our storage. Email us with any special requests. Buyer pays actual UPS shipping. We accept PayPal, MasterCard, & Visa. Thank you, CSDC

The Catalyst 1900 series switches deliver the industry`s best value for today`s Ethernet networks. For an extremely low price per port, these switches provide a dedicated 10 Mbps of bandwidth to the desktop and high performance connectivity between hub-based workgroups.

All Catalyst 1900 series switches offer unrivaled ease of use through an intuitive and comprehensive Web-based management interface. Standard Edition switches are upgradable to provide unmatched flexibility and scalability when combined with Enterprise Edition software. Enterprise Edition software enables these switches to deliver unmatched network configuration flexibility and scalability through embedded Cisco technologies, delivering comprehensive management and security, bandwidth optimization, networked multimedia, and virtual LAN (VLAN) support. The Enterprise Edition software is pre-installed in Enterprise Edition switches, and available as an Upgrade Kit for Standard Edition switches

Key Features and Benefits

Standard Edition Feature Summary

Software upgradable to Enterprise Edition
4 models with 12 or 24 10BaseT ports and choice of 2 100BaseT uplinks
Full-duplex operation on all Ethernet and Fast Ethernet ports
Auto-negotiation on 100BaseTX ports for automatically selecting half-and full-duplex operation
Congestion control features including IEEE 802.3x-based flow control, and back-pressure based flow control on 10BaseT ports
Web-based network management
Reduced footprint: only 8.25 in. deep

Performance

Twelve or twenty-four 10BaseT ports deliver dedicated 10 Mbps of bandwidth to individual users or workgroups to support bandwidth-intensive applications
Tw100BaseT ports eliminate bottlenecks to servers and other network devices
One switched Attachment Unit Interface (AUI) port for connecting to fiber or legacy 10Base2 or 10Base5 networks
Shared-memory architecture with 3 MB packet buffer virtually eliminates packet loss
Non-blocking, ClearChannel architecture supports wire-speed bridging on all ports, delivering up to 370 Mbps maximum forwarding bandwidth, and 550,000 pps aggregate
CollisionFree full-duplex operation on switched 10BaseT and 100BaseT ports delivers up to 200 Mbps of bandwidth tend stations, servers and between switches
Choice of congestion control options for applications that require zero packet loss:
Enhanced congestion control accelerates packet forwarding when the switch buffers are full
Back-pressure on half-duplex Ethernet ports throttles network transmission using the IEEE 802.3 Layer 2 back-off algorithm
IEEE 802.3x flow control on 100BaseTX ports provides intelligent flow management between switches and between a switch and a server
Per-port broadcast storm control prevents faulty end stations from degrading overall system performance with broadcast storms
Choice of cut-through or store-and-forward switching lets administrators optimize for performance or error checking
Security and Redundancy
IEEE 802.1d Spanning-Tree Protocol support for redundant backbone connections and loop-free networks simplifies network configuration and improves fault tolerance
User-selectable address learning mode simplifies configuration and enhances security
Support for optional Cisco 600 watt redundant AC power system provides a backup power source for up to four units for improved fault tolerance and network uptime
Flexible Network Configuration
No per-port Media Access Control (MAC) address limitations- flexibility to connect to individual users or shared hubs. Support for 1024 MAC addresses on the Catalyst 1900 allows the switch to scale with a growing network
Configurable network port that supports unlimited MAC addresses for backbone connectivity