
2 Cisco Product Catalog, February 1999
• 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--provides 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
Management
• Simple Network Management Protocol (SNMP) and Telnet support delivers comprehensive in-band manageability, and
a menu-based management console provides in-depth, out-of-band manageability
• Supports 4 groups of embedded RMON (history, statistics, alarms, and events). Support for all nine RMON groups
through use of a SwitchProbe Analyzer port that permits traffic monitoring of a single port, a group of ports, or the entire
switch from a single network analyzer or RMON probe (Enterprosed Edition only).
• Web-based secured interface allows users to configure and manage the switch from any client on the Internet with a web-
browser.
• Cisco Discovery Protocol (CDP) enables a CiscoWorks network management station to automatically discover the switch
in a network topology
• Autonegotiation on 100BaseTX ports automatically selects half- or full-duplex transmission mode to optimize bandwidth
Figure 1 Figure 7-25: Catalyst 1900 Front View
1x 2x 3x 4x 5x 6x 7x 8x 9x 10x 11x 12x 13x 14x 15x 16x 17x 18x 19x 20x 21x 22x 23x 24x Ax Bx
SYSTEM
RPS
MODE
STAT UTL FDUP
H6891
10BaseT ports
100BaseTX ports
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