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Feature

Specifications

Performance

• 13.6-Gbps switching fabric (Catalyst 2950T-48-SI and 2950SX-48-SI)
• 8.8-Gbps switching fabric (Catalyst 2950SX-24, 2950-24, 2950-12)
• Cisco Catalyst 2950-12: 2.4 Gbps maximum forwarding bandwidth
• Cisco Catalyst 2950-24: 4.8 Gbps maximum forwarding bandwidth
• Cisco Catalyst 2950SX-24: 8.8 Gbps maximum forwarding bandwidth
• Cisco Catalyst 2950T-48: 13.6 Gbps maximum forwarding bandwidth
• Cisco Catalyst 2950SX-48: 13.6 Gbps maximum forwarding bandwidth (Forwarding rates based on 64 byte packets)
• Cisco Catalyst 2950-12: 1.8 Mpps wire-speed forwarding rate
• Cisco Catalyst 2950-24: 3.6 Mpps wire-speed forwarding rate
• Cisco Catalyst 2950SX-24: 6.6 Mpps wire-speed forwarding rate
• Cisco Catalyst 2950T-48: 10.1 Mpps wire-speed forwarding rate
• Cisco Catalyst 2950SX-48: 10.1 Mpps wire-speed forwarding rate
• 8 MB packet buffer memory architecture shared by all ports
• 16 MB DRAM and 8 MB Flash memory
• Configurable up to 8000 MAC addresses

Management

• BRIDGE-MIB
• CISCO-2900-MIB
• CISCO-BULK-FILE-MIB
• CISCO-CDP-MIB
• CISCO-CLASS-BASED-QOS-MIB
• cCISCO-CONFIG-COPY-MIB
• CISCO-CONFIG-MAN-MIB
• CISCO-ENVMON-MIB
• CISCO-FLASH-MIB
• CISCO-FTP-CLIENT-MIB
• CISCO-IMAGE-MIB
• CISCO-IPMROUTE-MIB
• CISCO-MAC-NOTIFICATION-MIB
• CISCO-MEMORY-POOL-MIB
• CISCO-PAGP-MIB
• CISCO-PING-MIB
• CISCO-PORT-SECURITY-MIB
• CISCO-PROCESS-MIB
CISCO-PRODUCTS-MIB
• CISCO-RTTMON-MIB
• CISCO-SMI
• CISCO-STACKMAKER-MIB
• CISCO-STP-EXTENSIONS-MIB
• CISCO-SYSLOG-MIB
• CISCO-TC
• CISCO-TCP-MIB
• CISCO-VLAN-MEMBERSHIP-MIB
• CISCO-VTP-MIB
• ENTITY-MIB
• IANAifType-MIB
• IF-MIB (RFC 1573)
• OLD-CISCO-CHASSIS-MIB
• OLD-CISCO-CPU-MIB
• OLD-CISCO-INTERFACES-MIB
• OLD-CISCO-IP-MIB
• OLD-CISCO-MEMORY-MIB
• OLD-CISCO-SYSTEM-MIB
• OLD-CISCO-TCP-MIB
• OLD-CISCO-TS-MIB
• RFC1213-MIB (MIB-II)
• RFC1398-MIB (ETHERNET-MIB)
• RMON-MIB (RFC 1757)
• RS-232-MIB
• SNMPv2-MIB
• SNMPv2-SMI
• SNMPv2-TC
• TCP-MIB
• UDP-MIB

Standards

• IEEE 802.1x support
• IEEE 802.3x full duplex on 10BASE-T and 100BASE-TX ports
• IEEE 802.1D Spanning-Tree Protocol
• IEEE 802.1p class-of-service (CoS) prioritization
• IEEE 802.1Q VLAN
• IEEE 802.1s
• IEEE 802.1w
• IEEE 802.3 10BASE-T specification
• IEEE 802.3u 100BASE-TX specification
• IEEE 802.3ad
• IEEE 802.3z 1000BASE-X specification

MT-RJ Patch cables for Cisco Catalyst 2950SX 24 Switch

• 1-meter MT-RJ-to-SC multimode cable
• 3-meter MT-RJ-to-SC multimode cable
• 5-meter MT-RJ-to-SC multimode cable
• 1-meter MT-RJ-to-ST multimode cable
• 3-meter MT-RJ-to-ST multimode cable
• 5-meter MT-RJ-to-ST multimode cable

Power connectors

You can provide power to a switch by using the internal power supply, the Cisco RPS 675 Redundant Power System.

The connectors are located at the back of the switch.

Internal power supply connector:

• The internal power supply is an auto-ranging unit.
• The internal power supply supports input voltages between 100 and 240 VAC.
• Use the supplied AC power cord to connect the AC power connector to an AC power outlet.

• The connector offers connection for an optional Cisco RPS 675 that uses AC input and supplies DC output to the switch.
• The connector offers a 675W redundant power system that supports one of up to six external network devices and provides power to one failed device at a time.
• The connector automatically senses when the internal power supply of a connected device fails and provides power to the failed device, preventing loss of network traffic.
• Attach only the Cisco RPS 675 (Model PWR675-AC-RPS-NI=) to the redundant power supply receptacle with this connector.

Indicators

• Per-port status LEDs: link integrity, disabled, activity, speed, and full-duplex indications
• System status LEDs: system, RPS, and bandwidth-utilization indications

Dimensions and weight (H x W x D)

• 1.72 x 17.5 x 9.52 in. (4.36 x 44.45 x 24.18 cm) (Cisco Catalyst 2950SX-24, 2950-24, 2950-12)
• 1.72 x 17.5 x 13 in. (4.36 x 44.45 x 33.02 cm) (Cisco Catalyst 2950SX-48, 2950T-48)
• 1 RU high (1.72 in./4.36 cm)
• 6.5 lb (3.0 kg) (Cisco Catalyst 2950SX-24, 2950-24, 2950-12)
• 10.b lb (4.8 kg) (Cisco Catalyst 2950SX-48, 2950T-48)

Environmental ranges

• Operating temperature: 32 to 113°F (0 to 45°C)
• Storage temperature: –13 to 158°F (–25 to 70°C)
• Operating relative humidity: 10–85% (non-condensing)
• Operating altitude: Up to 10,000 ft (3000 m)
• Storage altitude: Up to 15,000 ft (4500 m)

Power requirements

• Power consumption: 30W (maximum), 102 BTUs per hour (Cisco Catalyst 2950SX-24, 2950-24. 2950-12)
• Power consumption: 45W (maximum), 154 BTUs per hour (Cisco Catalyst 2950T-48, 2950SX-48)
• AC input voltage: 100 to 127, 200 to 240 VAC (auto-ranging)
• AC input frequency: 47 to 63 Hz
• DC input voltages for Cisco RPS 675 and Cisco RPS 300: +12V at 4.5A

Acoustic noise

ISO 7770, bystander position, operating to an ambient temperature of 86°F (30°C):

• WS-C2950-24, WS-C2950-12, WS-C2950SX-24: 46 dBa
• WS-C2950T-48-SI, WS-C2950SX-48-SI: 48 dBa

Predicted mean time between failure

• 398,240 hours (Cisco Catalyst 2950-24)
• 482,776 hours (Cisco Catalyst 2950-12)
• 480,346 hours (Cisco Catalyst 2950SX-24)
• 268,876 hours (Cisco Catalyst 2950T-48-SI)
• 274,916 hours (Cisco Catalyst 2950SX-48-SI)

Safety certifications

• UL 60950/CSA 22.2 No. 950
• IEC 60950/EN 60950
• AS/NZS 3260, TS001
• CE Marking

Electromagnetic emissions certifications

• FCC Part 15 Class A
• EN 55022: 1998 (CISPR 22) Class A
• EN 55022: 1998 (CISPR 22)
• VCCI Class A
• AS/NZS 3548 Class A
• CE Marking
• CNS 13438 Class A
• CLEI Code
• MIC

Warranty

Lifetime limited warranty