• IEEE 802.1d
• IEEE 802.1p
• IEEE 802.1Q
• IEEE 802.1s
• IEEE 802.1w
• IEEE 802.1X
• IEEE 802.1ab
• IEEE 802.3
• IEEE 802.3u
• IEEE 802.3x
• IEEE 802.3z
• IEEE 802.3ab
• IEEE 802.3ad
• IEEE 802.3af (15.4 Watts / port)
• IEEE 802.3at (30 Watts / port)
• IEEE 802.3az

Device Interface

• 4 x Gigabit PoE+ ports
• 20 x Gigabit PoE ports
• 4 x Gigabit SFP slots
• 1 x Console Port
• LED Indicators (LED display mode button: toggles Link / Activity or PoE)
• Reset Button

• Ethernet: 10 Mbps (half duplex), 20 Mbps (full duplex)
• Fast Ethernet: 100 Mbps (half duplex), 200 Mbps (full duplex)
• Gigabit Ethernet: 2000 Mbps (full duplex)

• Switch fabric: 56 Gbps
• RAM buffer: 1 MB
• MAC Address Table: 16K entries
• Jumbo Frames: 10 KB
• HOL Blocking Prevention
• Forwarding rate: 41.7 Mpps (64-byte packet size)

• CLI (Console / Telnet / SSHv2)
• HTTP / HTTPS (SSL v2/3 TLS) Web based GUI
• SNMP v1, v2c, v3
• RMON v1
• Static Unicast MAC Address
• Enable / disable 802.3az Power Saving
• LLDP
• Virtual Cable Test
• IPv6: IPv6 Neighbor Discovery, IPv6 Static IP, DHCPv6, Auto configuration

MIB

• MIB II RFC 1213
• Bridge MIB RFC 1493
• Bridge MIB Extension RFC 2674
• SNMPv2 MIB RFC 1907
• Ethernet Interface MIB RFC 1643
• Ethernet –like MIB RFC 2863
• Interface Group MIB RFC 2233
• MIB Traps Convention RFC 1215
• RMON MIB RFC 1757, RFC 2819
• 802.1p MIB RFC 2674
• RADIUS Client Authentication MIB RFC 2618
• LLDP-MIB IEEE 802.1ab
• Ping MIB RFC 2925, RFC 4560

• IEEE 802.1D STP (Spanning Tree protocol)
• IEEE 802.1w RSTP (Rapid Spanning Tree protocol)
• IEEE 802.1s MSTP (Multiple Spanning Tree protocol)

• Static Link Aggregation
• 802.3ad Dynamic LACP

Quality of Service (QoS)

• 802.1p Class of Service (CoS)
• DSCP (Differentiated Services Code Point)
• Bandwidth Control per port
• Queue Scheduling: Strict Priority, Weighted Round Robin (WRR)

• Multiple management VLAN assignment
• Asymmetric VLAN
• 802.1Q Tagged VLAN
• Dynamic GVRP
• Up to 256 VLAN groups, ID Range 1-4094
• Private VLAN (Protected Ports)
• Voice VLAN (10 user defined OUIs)

• IGMP Snooping v1, v2, v3 (per VLAN)
• Static Multicast Address
• Up to 256 multicast entries
• MLD Snooping v1, v2

• RX, TX, or Both
• One to one
• Many to one

Access Control

• 802.1X Port-Based Network Access Control, RADIUS, TACACS+
• Local Dial In User Authentication
• DHCP Snooping (per VLAN)
• Loopback Detection
• Duplicated Address Detection
• Trusted Host
• Denial of Service (DoS)

• MAC Address
• VLAN ID
• Ether Type (IPv4 only)
• IP Protocol 0-255
• TCP / UDP Port 1-65535
• 802.1p
• DSCP (IPv4 only)
• IPv6 Address (IPv6 only)

• Windows^® 10, 8.1, 8, 7, Vista, XP, Windows^® 2003 / 2008 Server

• PoE+ ports

• Input: 100 – 240 V AC, 50/60 Hz, internal power supply
• Consumption: 240.2 W (max.)

PoE

• PoE budget: 185 W
• 802.3at: Up to 30 W per port (ports 1-4)
• 802.3af: Up to 15.4 W per port (ports 5-24)
• Mode A: Pins 1,2 for power(+) and pins 3,6 for power(-)
• PD auto classification
• Over current / short circuit protection

• Quantity: 3
• Noise Level: 54 dB(A) (max.)

• 257,362 hours

• 0 – 45°C (32 – 113°F)

• Max. 90% non-condensing

• 440 x 250 x 44.45 mm (17.3 x 9.84 x 1.75 in.)
• Rack mountable 1U height

• 3.81 kg (8.4 lbs.)

• CE
• FCC
• UL

• 3 year limited