20 Ports Layer 2+ Data Center Switch with 12x 10G optical ports

Lightem 10Gigabit Data Center Switch LT20-12SFP+ is a standard layer 2+ switch. Allocate flexible networking capabilities to ensure the stable operation of load balancing and link network. It provide 12x 10G optical ports, 8x 1G electrical ports. It located in density of the next generation of data center and cloud computing network access, can also be used for large Internet cafes, the core of enterprise network, metropolitan area network, or gathering..


  • 376G backplane bandwidth
  • 12x 10G optical ports, 8x 1G electrical ports
  • Hardware routing, wire-speed 3rd layer switching packet forwarding rate of 279.74Mpps
  • Extensible 32 biggest 10GE interface, the highest density (1U TOR), meet the demand of high-density 10G server access.
  • Provide DOS, distributed denial of service, deception and virus defense
  • Support IEEE802.1x, provide port-based user authentication, network shield, safety control, and strategy control technology
  • Restrict maximum number of connected hosts port, with multi-channel Ethernet interface binding, increasingbandwidth and system redundancy
  • Powerful ACL, support for L2-L4 layer data filtering
  • Strategy control list, flow regulation
  • Supports flexible port configuration
  • All kinds of management method through Web, SNMP and so on
  • In the PHY to enter or exit a low-power state.
  • Automatic detecting and broadcast storm restraining, support for IGMP message detection, effectively limit the spread of broadcast message.
  • Support full duplex mode and half duplex mode flow control
  • Support Ethernet interface with 1M as the rate limiting step
  • Support IP multicast and QoS
16 Ports Layer 2/2+ Data Center Switch with 8x 10G SFP+ ports
Basic characteristics
Fixed Port 12x 10G optical ports, 8x 1G electrical ports
Console Port 1
OOB Management Port 1
Backplane bandwidth 376Gbps
Packet Forwarding Rate  279.74Mpps
Jumbo Frames 16356bytes
Transfer Mode Support store-forward mode and cut-through mode
IPv4/IPv6 Route 6k / 8k
MAC Address Table 96K
Packet Buffer 4MB
Flash Memory Capacity 8MB
Memory Capacity 512MB DDR3 SDRAM
Soft Specification
Security Feature IP+MAC+PORT+VLAN binding
  ARP inspection
  DOS prevention
  Port protection
  IP Source Guard binding
VLAN Port based VLAN
  802.1Q VLAN
  IP based VLAN
  MAC based VLAN
MAC Address Table Static MAC address table
  Dynamic MAC address table
Storm Control Broadcast Limit
  Multicast Limit
  DLF Limit
  Limit Speed
Traffic Control Half-duplex control based on the back pressure type
  Full-duplex control based on the PAUSE frame
Port Mirror Support port mirroring
Port Management System info
  Port Statistics
  Config port
  Port trunk
QoS IEEE 802.1Q Congestion mechanism
  Each port has 8 send queue mapping to 8 802.1p priority
IP Services Ping dectection
  DHCP Snooping
Spanning Tree  MSTP(802.1s)、STP、RSTP
Multicast Management IGMP Snooping frame
System Management Support SNMP v1/v2
  Support Console
  Support TELNET
  Support WEB
Remote Upgrading Web host
Physical Characteristics  
Appearance size 440mm × 285mm × 44mm
Power supply

AC 90V ~ 290V , DC -38.4V ~ -72V
Operating temperature 0°C ~ 50°C (0m ~ 1800m)
Operating humidity 5% ~ 95%, Non-condensing
Model Description
LT20-12SFP+ 20 Ports Layer 2+ Data Center Switch with 12x 10G optical ports