3Com SuperStack 3 3870, 24-Port Stackable Ethernet Switch - 3CR17450-91-US

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Product Overview

3Com SuperStack 3 Switch 3870 delivers wirespeed Gigabit Ethernet switching, with ten times the performance of 10/100 desktop switching but at similar prices. Tri-speed operation of the switch enables backward compatibility with existing devices, such as printers, while still allowing new PC's and servers to operate at their maximum potential.

This switch also has notable investment protection capabilities. Along with the built-in 10Gbps stacking ports, each Switch 3870 also has an expansion slot capable of supporting an additional 10Gbps full duplex (20Gbps total) high-speed Ethernet connection. And, the switch silicon supports multilayer (Layers 2 / 3 / 4) switching.


Manufacturer 3Com Corp
Mfg Part# 3CR17450-91-US
SKU 10370884
UPC 662705478029
UPC 14 00662705478029
Stack Port Yes
Total Number of Network Ports 20
Port/Expansion Slot Details 20 x Gigabit Ethernet Network / 4 x Gigabit Ethernet Network / 4 x Gigabit Ethernet Expansion Slot
Product Type Ethernet Switch
Manufacturer Part Number 3CR17450-91-US
Manufacturer Hewlett-Packard
Product Name SuperStack 3 3870, 24-Port Stackable Ethernet Switch
Product Line SuperStack 3
Brand Name 3Com
Expansion Slot Type SFP
Number of Total Expansion Slots 5
Number of SFP Slots 4
Shared SFP Slot Yes
Network Technology 10/100/1000Base-T
Ethernet Technology Gigabit Ethernet
Media Type Supported Twisted Pair
Package Contents SuperStack 3 Switch 3870Power cordRackmount kitConsole cable (RJ-45 to DB9)User documentation packet and CD3Com Network Supervisor
Layer Supported 4
Weight (Approximate) 11 lb
Form Factor Rack-mountable
Height 1.7"
Width 17.3"
Depth 16.4"
Power Source Power Supply
Redundant Power Supply Supported Yes
Manageable Yes
Limited Warranty Lifetime
Tech Specs
Number of Ports 20
Gigabit Ethernet Port Yes
Humidity 10% to 90% Non-condensing
Temperature 32°F (0°C) to 104°F (40°C) Operating / -40°F (-40°C) to 158°F (70°C) Storage
Thermal Dissipation 717 BTU/h
Product Type Ethernet Switch
Manufacturer Part Number 3CR17450-91-US
Manufacturer Website Address www.3com.com
Manufacturer 3Com Corporation
Product Name SuperStack 3 3870, 24-Port Stackable Ethernet Switch
Product Line SuperStack 3
Brand Name 3Com
Expansion Slots (4 Total) SFP (mini-GBIC) Shared / (1 Total) Expansion Slot
Modules Not Included
Number of Expansion Slots 5
Connectivity Media Twisted Pair
Performance 108Gbps Bandwidth / 80Mpps Throughput / 40Gbps Stacking Bandwidth
Flash Memory 32 MB
Standard Memory 128 MB
Additional Information Traffic control: Broadcast Storm Control (500-200,000 pps limit) Filtering for 64 multicast groups Jumbo Frames: Supports 9K packets
Package Contents SuperStack 3 Switch 3870 Power cord Rackmount kit Console cable (RJ-45 to DB9) User documentation packet and CD 3Com Network Supervisor
Certifications & Standards Ethernet Protocols: IEEE 802.1p: CoS IEEE 802.1Q: VLANs IEEE 802.1w: RSTP IEEE 802.1X: Security IEEE 802.3ab: Copper Gigabit IEEE 802.3ad: Link Aggregation IEEE 802.3i: 10BASE-T IEEE 802.3u: Fast Ethernet IEEE 802.3x: Flow Control IEEE 802.3z: Fiber Gigabit Administration Protocols: RFC 1812: IPv4 RFC 783: TFTP RFC 768: UDP RFC 791: IP RFC 793: TCP RFC 2474: DiffServ RFC 2131: DHCP RFC 2138: Radius Authentication Management, including MIBs Supported: RFC 1157: SNMP v1/v2c RFC 1213: MIB II RFC 1398: Ethernet MIB RFC 1493: Bridge MIB RFC 1573: Private IF MIB RFC 1757: RMON MIB RFC 2011: IP-MIB RFC 2012: TCP-MIB RFC 2013: UDP-MIB RFC 2037: Entity MIB RFC 2618: RADIUS Authentication Client MIB RFC 2665: Ethernet-MIB RFC 2674P: P-BRIDGE-MIB RFC 2674Q: Q-BRIDGE-MIB RFC 2737: Entity MIB RFC 2819: RMON MIB RFC 2863: IF-MIB IEEE8021-PAE-MIB (IEEE) (Network Login) Emissions / Agency Approvals: CISPR 22: 1995; Class A FCC Part 15 subpart B, Class A EN 55022: 1998; Class A ICES -003 Class A AS/NZS 3548 Class A EN 61000-3-2: 2000 EN 61000-3-3: 1995 +A1 Immunity: EN 55024: 1998 Safety Agency Certifications: UL 60950-1 IEC 60950: 2001; all national deviations EN 60950: 2001; all national deviations CSA 22.2 # 60950-00
Address Table 16 K MAC Address - / 1024 MAC Address - Secure
Layer Support 2 to 4
Switching Method Store-and-forward
Flow Control Back Pressure (Half-duplex) / IEEE 802.3x (Full-duplex)
Number of Stacks 8
Dimensions 1.70" Height x 17.30" Width x 16.40" Depth
Weight (Approximate) 11 lb
Form Factor Rack-mountable
Input Voltage 110 V AC / 220 V AC
Power Source Power Supply
Frequency 50 Hz or 60 Hz
Input Current 1.20 A Maximum
Power Consumption 148 W @ Maximum
Input Voltage Range 100 V AC to 240 V AC
Redundant Power Supply Yes
Processor MPC8245 466 MHz
Protocols Spanning Tree Protocol / LACP / RSTP / HTTP / TCP/IP / IGMP v1 / IGMP v2 / TFTP / SNTP / DHCP
Management SNMP, Web, and Telnet support RMON-1 RMON Groups: Statistics, History, Alarms and Events GUI management with 3Com Network Supervisor and other 3Com management offerings Remote Management: SNMP v1, v2 Command line interface Switch access levels: 5 user accounts Software: Dual software images Backup and restore TFTP configuration: upload/download TFTP agent: upload Remote GUI management: 3Com Network Supervisor Topology discovery Change management reporting Capacity planning Event logging Fault identification and troubleshooting Utilization monitoring
Security Features VLAN: 255 VLANs Network Login: IEEE 802.1X user authentication RADIUS authentication Secure Mode (locks MAC address) Packet Filtering: Port-based Access Control Lists (ACLs) Filtered on destination IP address / mask Switch Protocol Security: MD5 cipher-text and clear-text authentication Switch Management: RADIUS management of switch passwords Trusted IP Management Addresses Telnet: SSH v1, v2 (56bit DES) SSL (HTTPS): 40 Bit 56 Bit DES
Manageable Yes
MTBF 31 Year / 30.6 Year
Additional Warranty Information Software Warranty: Limited Software Warranty for ninety (90) days Other Benefits: Limited Lifetime software updates. Next Business Day Advanced Hardware Replacement in U.S. and E.U.,after registration of the switch
Standard Warranty Lifetime Limited
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