Catalyst 1900 and Catalyst 2820 Series Overview

• Dedicated 10 Mbps bandwidth on each port

• Provides unmatched 100BaseT configuration flexibility to satisfy requirements for performance,  cabling and cost

• Switched and shared multiport repeater modules on  Catalyst 2820 provide unique ability to support server  farms and high-speed local backbone on a single device

Collision-Free full-duplex operation supported  on all ports

• Switched ports provide up to 200 Mbps of bandwidth  to attached devices for increased performance and  longer distances between network devices (up to 2Kms)

• Meets the demands of a fully-populated 10-Mbps system with all ports operating at wire-speed

• Virtually eliminates dropped packets due to buffer overflow

Up to 550,000 pps aggregate packet forwarding rate and 320-Mbps maximum forwarding bandwidth (Catalyst 1900; Catalyst 2820 varies by inserted module)

Packet forwarding rates: 14,880 pps to 10 Mbps ports; up to 148,880 pps to 100Base-T ports; up to 100,000 pps to FDDI ports

• Delivers high-performance switching for even the most demanding workgroup applications

Per-port broadcast storm control

• Prevents faulty end stations from degrading overall system performance with broadcast storms

Cisco Group Management Protocol (CGMP)
(Enterprise Edition only)

• Enables the switch to selectively forward routed IP multicast traffic to targeted multimedia end stations, reducing overall network traffic

A system limit of 1024 (Catalyst 1900) and 2048 or 8096 (Catalyst 2820)

• Flexibility in network configuration; Switch can be used to aggregate hubs or for desktop connectivity to  end stations

Up to 64 VLANs with one spanning trap per VLAN

• Simplified network-wide adds, moves, and changes

• Restricts broadcast traffic to well defined administrative  domains

• Provides increased security by containing broadcast  traffic within a VLAN

• Enables the switch to selectively forward routed IP multicast traffic to targeted multimedia end stations, reducing overall network traffic

• Increases network performance for multimedia applications

• Enables full management and configuration of the switches from a CiscoView network management station

Four groups of embedded RMON

• Provides enhanced manageability, network monitoring, and traffic analysis

Telnet support for 7 simultaneous sessions

• Allows menu-based management by terminal emulation software over the network

Out-of-band management system through a console port to a local terminal or modem

• Permits management by a local administrator, central MIS group or service bureau

Network statistics gathered on a per-port basis or by using an RMON probe

• Facilitates troubleshooting and capacity planning by characterizing each port's utilization, errors, and other key statistics

Supports all 9 RMON groups through SPAN support that connects to an external network analyzer or RMON probe

• Offers complete monitoring of a single port, group of ports or the entire switch from a single network analyzer or RMON probe attached to a switch port

Cisco Discovery Protocol

• Enables a CiscoView network management station to automatically discover the switch in a network topology without user intervention

Extensive LED display including utilization meter for gauging the current aggregate forwarding bandwidth of the switch, as well as the peak utilization in a user-definable period

• Provides comprehensive visual management of the switch

• For security-sensitive applications prevents unauthorized users from accessing the network

• Provides administrators the choice of level of security, notification and resulting actions

Password-protected Telnet and out-of-band management: Access to the management console port is locked out for an administrator-defined time period upon entry of an administrator-defined number of invalid passwords

• Gives protection against unauthorized configuration changes and unwanted intruders

Intraswitch VLANs

• Controls access to sensitive resources within a workgroup or across the switched network

Source port filtering designates restricted static addresses for which the forwarding of packets to these destinations is allowed only when received on specified ports. Packets to restricted static address destinations received on other ports are filtered.

• Provides additional security

• Allows for load balancing of traffic such as video by using the same multicast address for streams sent from servers on different ports

• Cost effective ATM OC-3 UTP or multimode fiber  155 Mbps backbone options for local or long-distance  (up to 2Kms) connectivity

Supports up to 64 ATM emulated LANs

• Extends VLANs across the network for simplified  adds, moves and changes and controls broadcast traffic

ATM Forum LANE 1.0 support; RFC 1483,  UNI 3.0/3.1

• Standard LAN Emulation Client (LEC) support

ATM Director^TM management

• Manageable through Cisco's ATM Director application

Flash memory firmware

• Field upgradable memory offers Cisco IOS technology  enhancements over time

• Uses cost-effective UTP for desktop and within-floor connectivity; allows long-distance runs (up to 2 km) with fiber in vertical high-rises and across campuses

IP fragmentation and MTU discovery (RFC 791, RFC 1191)

• Enhances the efficiency of data transfers in IP networks by allowing communication on the ring using FDDI's 4500 byte maximum size packet

APaRT for IPX and AppleTalk

• Works immediately in all Novell environments without labor-intensive server and workstation reconfiguration; allows AppleTalk Phase 1 and Phase 2 devices to coexist without upgrading existing Phase 1 devices

Cut through (FragmentFree^TM): forward after collision window

Store-and-Forward: forward after packet receipt

• Gives network administrators the choice between lowest latency (FastForward: 31 microseconds to 10BaseT ports, 7 microseconds to 100BaseT ports) and maximum error checking

Uses store-and-forward mode for broadcast packets

• Allows the performance benefits of cut-through switching for unicast packets with the error-checking for broadcast packets

Multicast packets can be store-and-forward or same cut-through mode as unicast packets

• Provides the choice of maximum error-checking for multicast packets or low latency for applications such as video

• No per port MAC Address limitation provides flexibility in network configuration

Support for unlimited addresses on configurable network port

• Allows for scalability and easy backbone connectivity

One spanning tree per VLAN

• Supports redundant backbone connections and loop-free networks for improved fault tolerance

• Provides simplified network configuration and improved fault tolerance for each VLAN

Redundant Power Supply option

• External RPS provides a redundant power source for up to four units for improved fault tolerance

Low parts count design with 150,000 hours calculated MTBF

• Designed to provide the highest reliability for maximum network uptime

• Compliant with standard 19-inch rack mount scheme  for easy installation. Allows high density port allocation while conserving  valuable rack space in the wiring closet. At only 8.25-in. deep, the Catalyst 1900 also affords easy desktop  mounting