Physical Port

• 20-Port 10/100/1000BASE-T Gigabit RJ45 copper with 16-Port IEEE 802.3at/af PoE Injector (Port-1 to Port-16)
• 4 100/1000BASE-X mini-GBIC/SFP slots, shared with port-17 to port-20 compatible with 100BASE-FX SFP
• RJ45 console interface for switch basic management and setup 

Power over Ethernet

• Complies with IEEE 802.3at Power over Ethernet Plus, end-span PSE
• Backward compatible with IEEE 802.3af Power over Ethernet
• Up to 16 ports of IEEE 802.3af/802.3at devices powered
• Supports PoE power up to 36 watts for each PoE port
• Auto detects powered device (PD)
• Circuit protection prevents power interference between ports
• Remote power feeding up to 100 meters in standard mode and 250m in extend mode
• PoE management
  • Per port PoE function enable/disable
  • PoE port power feeding priority
  • Per PoE port power limitation
  • PD classification detection
• Intelligent PoE features
  • PD alive check
  • PoE schedule
  • PoE extension 

Layer 2 Features

• Prevents packet loss with back pressure (half-duplex) and IEEE 802.3x pause frame flow control (full-duplex)
• High performance Store and Forward architecture, broadcast storm control, runt/CRC filtering eliminates erroneous packets to optimize the network bandwidth
• Supports VLAN
  • IEEE 802.1Q tagged VLAN
  • Provider Bridging (VLAN Q-in-Q) support (IEEE 802.1ad)
  • Protocol VLAN
  • Voice VLAN
  • Private VLAN
  • Management VLAN
  • GVRP
• Supports Spanning Tree Protocol
  • STP (Spanning Tree Protocol)
  • RSTP (Rapid Spanning Tree Protocol)
  • MSTP (Multiple Spanning Tree Protocol)
  • STP BPDU Guard, BPDU Filtering and BPDU Forwarding
• Supports Link Aggregation
  • IEEE 802.3ad Link Aggregation Control Protocol (LACP)
  • Cisco ether-channel (Static Trunk)
  • Maximum 2 trunk groups, up to 4 ports per trunk group 
• Provides port mirror (many-to-1)
• Loop protection to avoid broadcast loops
• Supports ERPS (Ethernet Ring Protection Switching) 

Quality of Service

• Ingress/Egress Rate Limit per port bandwidth control
• Storm Control support
  • Broadcast/Unknown-Unicast/Unknown-Multicast
• Traffic classification
  • IEEE 802.1p CoS
  • TOS/DSCP/IP Precedence of IPv4/IPv6 packets
• Strict priority and Weighted Round Robin (WRR) CoS policies 

Multicast

• Supports IPv4 IGMP snooping v2 and v3
• Supports IPv6 MLD snooping v1, v2
• IGMP querier mode support
• IGMP snooping port filtering
• MLD snooping port filtering 

Security

• Authentication
  • IEEE 802.1X Port-based network access authentication
  • Built-in RADIUS client to cooperate with the RADIUS servers
  • RADIUS/TACACS+ login user access authentication
• Access Control List
  • IPv4/IPv6 IP-based ACL
  • MAC-based ACL
• MAC Security
  • Static MAC
  • MAC Filtering
• Port Security for Source MAC address entries filtering
• DHCP Snooping to filter distrusted DHCP messages
• Dynamic ARP Inspection discards ARP packets with invalid MAC address to IP address binding
• IP Source Guard prevents IP spoofing attacks
• DoS Attack Prevention 

Management

• IPv4 and IPv6 dual stack management
• Switch Management Interface
  • Web switch management 
  • Console/Telnet Command Line Interface
  • SNMP v1 and v2c switch management
  • SSHv2, TLSv1.2 and SNMP v3 secure access
• SNMP Management
  • Four RMON groups (history, statistics, alarms, and events) 
  • SNMP trap for interface Link Up and Link Down notification
• User Privilege Levels Control
• Built-in Trivial File Transfer Protocol (TFTP) client
• BOOTP and DHCP for IP address assignment
• System Maintenance
  • Firmware upload/download via HTTP/TFTP
  • Configuration upload / download through Web interface
  • Dual Images
  • Hardware reset button for system reboot or reset to factory default
• SNTP Network Time Protocol
• Network Diagnostic
  • ICMPv6/ICMPv4 Remote Ping
  • Cable Diagnostics
  • SFP-DDM (Digital Diagnostic Monitor)
• Link Layer Discovery Protocol (LLDP) Protocol and LLDP-MED
• Event message logging to remote Syslog server
• Smart fan with speed control
• PLANET Smart Discovery Utility for deployment management
• PLANET NMS system for deployment management