Catalyst 2900 Series

This chapter provides information on the Catalyst 2900 series switch. The information is organized into the following sections:

Product Overview

Cisco Systems' standalone Catalyst 2900 series switch provides high-speed configuration flexibility for workgroup applications. The Catalyst 2900 series is ideal for Ethernet workgroups and individual users requiring increased performance and 100BaseT or 100BaseF connectivity to servers and backbones.

The Catalyst 2900 series is part of a comprehensive line of high-performance switches designed to help you easily migrate from traditional shared LANs to fully switched networks. An integral element of the CiscoFusion scalable architecture, the Catalyst switch products deliver the varying levels of flexibility and cost-effectiveness required for today's desktop, workgroup, and backbone applications while enabling enterprise-wide switched internetworks.

The Catalyst 2900 series switch supports up to 16,000 MAC addresses and provides 14 Fast Ethernet ports in two fixed configurations: 12 10/100BaseTX ports with two 100BaseTX uplinks, or 12 100BaseFX ports with two 100BaseTX uplinks. The Catalyst 2900 series can be used to deploy 100-Mbps Fast Ethernet connections to existing LAN segments or to high-performance workstations and servers.

Figure 151 shows a rear view of the Catalyst 2900 series.

Figure 151: Catalyst 2900 Series Switch Rear View

Table 96 lists a summary of the Catalyst 2900 series features, and Table 97 lists the environmental specifications.

Table 96: Ca talyst 2900 Series Summary of Features

Characteristic	Description
Placement	Rack-mounted, front or back (standard 19-inch rack)
Switching backplane	1.2 Gbps; supports over 1 million pps¹
Memory	4-MB Flash memory 8-MB DRAM 128-KB NVRAM 512-KB EPROM
Interfaces	Supervisor console: DB-25 (female) Supervisor 100BaseTX: RJ-45 (female), MII²(female) 10/100BaseTX: RJ-45 autosensing 100BaseFX: SC
Duplex	10-Mbps Ethernet: full or half duplex 100-Mbps Fast Ethernet: full or half duplex
Network management	Cisco Discovery Protocol Cisco Virtual Trunking Protocol (VTP) SNMP agent v1 (RFC 1155-1157) SNMP MIB II (RFC 1213) Ethernet MIB (RFC 1398) Interface table (RFC 1573) Bridge MIB (1493) Cisco Workgroup MIB
Maximum station-to-station cabling distance	10/100BaseTX Ethernet: Category 5 UTP: 328 ft (100 m) 100BaseFX Ethernet: 62.75/125-micron fiber: 1312 ft (400 m) half duplex, 1.25 miles (2 km) full duplex
Agency approvals	FCC Class A (47 CFR Part 15) EN 55022A Class B on shielded UTP VCCI Class 1 VDE Class B UL 1950 CSA-C22.2 No. 950 93 EN 60950 CE Mark
LEDs	Status LED on each interface shows successful completion, minor and major failure of power-up diagnostics Link Good LED shows status of any interface Switch Load LEDs show backplane utilization
Dimensions (H x W x D)	3.4 x 17.25 x 23.0 in. (8.5 x 43.8 x 58.4 cm)
Weight	Typical: 41 lb (18.6 kg) Average shipping: 52 lb (23.6 kg)

¹ pps = packets per second.
² MII = media-independent interface.

Table 97: Ca talyst 2900 Series Environmental Specifications

Description	Specification
Input voltage	3A @ 100-240 VAC¹ 50/60 Hz
Power consumption	264W
Heat dissipation	264W, 901 BTUs²/hour

¹ VAC = volts alternating current.
² BTUs = British Thermal Units.

Standard Features

The Catalyst 2900 series switch supports the following standard features:

14-port fixed configuration chassis, which includes a single power supply
Supervisor engine:
- High-performance, low-latency 1.2-Gbps switching backplane with tri-level priority
- Hardware-based support for static entries and self-learning of the 16,000 active MAC addresses and associated VLANs in the bridge lookup table
- 25-MHz 68EC040 network management processor
- Two Fast Ethernet interfaces (full or half duplex), which can be Inter-Link Switch (ISL) trunks
- Fully integrated support for 1024 VLANs
- Console port (female DCE EIA/TIA-232)
- 8-MB DRAM
- 4-MB Flash EPROM for downloadable microcode and software upgrades
- 256-KB NVRAM
- 192-KB input buffers per interface
- Self-diagnostics at startup and runtime
- Environmental monitoring
VLAN ISL support
- Virtual Trunking Protocol (VTP) for distributing VLAN configuration information
- Virtual Trunking Protocol MIB
- Dynamic ISL Protocol providing SNMP instrumentation for VTP
Embedded RMON, which provides the following four RMON groups: statistics, history, alarms, events
Switched port analyzer functionality, which allows monitoring of a single port or VLAN via a single monitor port. Segment traffic is "mirrored" to a user-designated port.
Load sharing via spanning-tree priority on a per-VLAN basis on ISL trunks between Catalyst 2900 series and Catalyst 5000s. Multiple ports can be used to achieve 800 Mbps and higher performance.
Cisco Group Management Protocol (CGMP), which enables efficient distribution of layer 3 multicasts
10/100 Fast Ethernet interface with autosensing speed detection for easy upgrade
Standards-compliant Fast Ethernet interfaces for 100BaseTX and 100BaseFX
AC power supply
Power cord
Rack-mounting hardware
Cable-management system

Product Numbers

Table 98 provides product numbers for the Catalyst 2900 series switch.

Table 98: Ca talyst 2900 Series Switch Product Numbers

Description	Product Number
Catalyst 2900 14-port (12 10/100BaseTX ports, 2 100BaseTX ports) Fast Ethernet switch, UTP interfaces	WS-C2901
Catalyst 2900 14-port (12 100BaseFX ports, 2 100BaseTX ports) Fast Ethernet switch, fiber (SC) interfaces	WS-C2902
Catalyst 10/100 Switch, fixed 24-10/100 RJ-45, 2-100 Base FX	WS-C2926F
Catalyst 10/100 Switch, fixed 24-10/100 RJ-45, 2-100 Base TX	WS-C2926T

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