New and Used Cisco WS-C2970G-24T-E Switches for Sale

Features

• Express Setup simplifies initial configuration via a Web browser, eliminating the need for more complex terminal emulation programs and CLI knowledge.
• DHCP autoconfiguration of multiple switches through a boot server eases switch deployment.
• AutoQoS simplifies QoS configuration in VoIP networks by issuing interface and global switch commands to detect Cisco IP phones, classify traffic, and enable egress queue configuration.
• Autosensing detects the speed of the attached device and automatically configures each 10/100/1000 port for 10-, 100-, or 1000-Mbps operation, easing switch deployment in mixed 10, 100, and 1000BASE-T environments.
• Autonegotiating on 10/100/1000 ports automatically selects half- or full-duplex transmission mode to optimize bandwidth.
• Speed Autonegotiate allows users to only advertise 10/100 Mbps speeds on 10/100/1000 Mbps capable ports
• Dynamic Trunking Protocol (DTP) enables dynamic trunk configuration across all switch ports.
• Port Aggregation Protocol (PAgP) automates the creation of Cisco Fast EtherChannel® groups or Gigabit EtherChannel groups to link to another switch, router, or server.
• Link Aggregation Control Protocol (LACP) allows the creation of Ethernet channeling with devices that conform to IEEE 802.3ad. This feature is similar to Cisco EtherChannel technology and PAgP.
• Auto-media-dependent interface crossover (MDIX) automatically adjusts transmit and receive pairs if an incorrect cable type (crossover or straight-through) is installed on a 10/100/1000 port.
• IEEE 802.3z-compliant 100BASE-FX, 1000BASE-SX, 1000BASE-LX/LH, 1000BASE-ZX, and 1000BASE-T physical interface support through a field-replaceable SFP module provides unprecedented flexibility in switch deployment.
• DHCP Relay allows a DHCP relay agent to broadcast DHCP requests to the network DHCP server.
• The default configuration stored in Flash memory ensures that the switch can be quickly connected to the network and can pass traffic with minimal user intervention.

Performance

• 32 Gbps switching fabric
• Forwarding bandwidth: 28 Gbps (Cisco Catalyst 2970G-24TS), 24 Gbps (Cisco Catalyst 2970G24T)
• Forwarding rate based on 64-byte packets: 38.7 Mpps (Cisco Catalyst 2970G-24TS), 35.7 Mpps (Cisco Catalyst 2970G-24T)
• 128 MB DRAM and 16 MB Flash memory
• Configurable up to 8192 MAC addresses
• Configurable up to 1000 IGMP groups and bridging entries
• Configurable maximum transmission unit (MTU) of up to 9018 bytes (jumbo frames) for bridging on Gigabit Ethernet ports, and up to 1546 bytes for bridging on Fast Ethernet ports

Cabling and Connectors

• 10BASE-T ports: RJ-45 connectors; 2-pair Category 3, 4, or 5 unshielded twisted-pair (UTP) cabling
• 100BASE-TX ports: RJ-45 connectors; 2-pair Category 5 UTP cabling
• 1000BASE-T ports: RJ-45 connectors; 2-pair Category 5 UTP cabling
• 1000BASE-T SFP-based ports: RJ-45 connectors, 2-pair Category 5 UTP cabling
• 1000BASE-SX, -LX/LH, -ZX, and CWDM SFP-based ports: LC fiber connectors (single-mode or multimode fiber)
• Management console port: RJ-45-to-DB9 cable for PC connections

Power

• The internal power supply is an autoranging 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.

Indicators

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

Dimensions (H x W x D)

• 1.73 x 17.5 x 12.83 in. (4.39 x 44.5 x 32.6 cm) (Cisco Catalyst 2970G-24T)