D-Link 28-Port Gigabit WebSmart Switch with 4 Gigabit SFP Ports


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‘- 24x 10/100/1000 Mbps
– 4x SFP
– Smart IP-MAC-Port Binding
– DHCP Server Screening
– IPv4/ IPv6 Dual Stack
– Supports IEEE 802.1p QoS
– Supports DSCP
– Auto Surveillance VLAN
– Auto Voice VLAN
– Port or VLAN-based Loopback Detection
– Cable Diagnostics

Port Standard & Functions Twisted-Pair Copper:
IEEE 802.3 10BASE-T Ethernet
IEEE 802.3u 100BASE-TX Fast Ethernet
IEEE 802.3ab 1000BASE-T Gigabit Ethernet
IEEE 802.3x Flow Control
Number of Ports 24 x 10 / 100 / 1000BASE-T
4 x Gigabit SFP
Network Cables UTP CAT5 & 5e
EIA/TIA-568 100 ? STP
328.1′ (100.0 m) maximum
Full/Half Duplex Full / half duplex for 10 / 100 Mb/s speeds
Full duplex for Gigabit speed
Media Interface Exchange Auto MDI / MDI-X adjustment for all twisted-pair ports
Switching Capacity 56 Gb/s
Transmission Method Store-and-forward
MAC Address Table Size 16,000 entries per device
MAC Address Update Up to 256 static MAC entries
Enable / disable auto-learning of MAC addresses
Packet Forwarding Rate 41.7 Mp/s
Maximum: 64 bytes
Packet Buffer Memory 1 MB per device
AC Input 100 to 240 VAC, 50 / 60 Hz internal universal power supply
ower Consumption Maximum: 16.81 W
Standby: 5.9 W / 110 V, 6.42 W / 240 V
Acoustics 0 dBA
Heat Dissipation 57.36 BTU/hour
Diagnostic LEDs Power (per device)
Link / Activity / Speed (per 10 / 100 / 1000 Mb/s port)
Link / Activity (per SFP port)
Layer 2 Features MAC address table with 16,000 entries
802.3x flow control and HOL blocking prevention
IGMP v1 / v2 Snooping: IGMP per VLAN
Supports 256 IGMP groups, at least 64 static multicast addresses, and IGMP Snooping Querier
Spanning Tree Protocol: 802.1D STP and 802.1w RSTP
Loopback Detection
802.3ad Link Aggregation: Maximum 14 groups per device / 8 ports per group
Port Mirroring: One-to-one, many-to-one, and supports mirroring for transmitter/receiver/both
Multicast Filtering: Forwards and filters all unregistered groups
VLAN Group: Maximum 256 static VLAN groups and 4,094 VIDs Management, Asymmetric, and Auto Surveillance VLAN Auto Voice VLAN: Maximum 10 user-defined OUI and 8 default OUI
QoS 802.1p QoS (Quality of Service) 4 queues per port Strict and WRR (Weighted Round Robin) queue handling CoS based on 802.1p Priority Queues, DSCP, ToS1, TCP / UDP port number, and IPv6 traffic class Port-based bandwidth control (ingress / egress, minimum granularity 64 kb/s)
MTBF 236,739 hours
Access Control List Maximum 50 profiles and 240 rules shared by profiles
Single or multiple ports (each rule)
ACL based on MAC address, IPv4 address (ICMP / IGMP / TCP / UDP), IPv6 address (ICMP / TCP / UDP)1, 802.1p priority, DSCP, Ethertype, and IPv6 traffic class
ACL Actions: Permit and deny
Security Port Security: Supports up to 64 MAC addresses per port
Broadcast / multicast / unicast storm controlv Static MAC
D-Link Safeguard Engine
DHCP server screening
Trusted host
ARP Spoofing prevention: Maximum 64 entries
SSL: Supports v1 / v2 / v3 and IPv4 / IPv6
Traffic Segmentation
Smart Binding
Supports 512 Entries of IP-MAC-Port Binding: Discover connected devices and click to bind, inspect ARP packets and / or IP packets, supports DHCP Snooping
AAA 802.1X Port-Based Authentication: Supports RADIUS Server, EAP, OTP, TLS, TTLS, and PEAP
OAM Cable diagnostics and factory reset
MIB 1213 MIB II, and 1493 Bridge, 1907 SNMP v2, 1215 Trap Convention, 2233 Interface Group, D-Link Private, Power-Ethernet, LLDP, and D-Link ZoneDefense MIB
RFC Standard Compliance 783 TFTP
854 Telnet Server
951, 1542, and 2131 BootP / DHCP Client
1157 SNMP v1, v2c, v3
1907 SNMP v2c MIB
1493 Bridge MIB
1215 MIB Traps Convention
1350 TFTP
1769 SNTP
1901 and 1908 SNMP v1, v2c, v3
2068 FCS
2233 Interface Group MIB
2570 and 2575 SNMP v1, v2c, v3
2246 SSL
2598 CoS
2616 FCS
2138, 2139, 2618, and 2865 RADIUS Authentication
2819 RMON v1
3164 and 3195 System Log
3411-17 SNMP
3621 Power Ethernet MIB
Management Multi-Language Web-based GUI: English (default), Simplified and Traditional Chinese, French, German, Italian, Japanese, Portuguese, Russian, and Spanish
SmartConsole Utility
Simplified CLI
Telnet Server
TFTP Client
IPv6 Neighbor Discovery
Configurable MDI/MDIX
SNMP supports v1, v2c, v3
System Log: Maximum 500 log entries
BootP/DHCP Client
IPv4/v6 Dual Stack
DHCP Auto Configuration
RMON v11
D-Link Green 3.0 Technology Power Saving by: Link status, cable length detection, LED or port shutoff and standby mode, system hibernation mode
Temperature Operating: 41 to 122°F (-5 to 50°C)
Storage: -4 to 158°F (-20 to 70°C)
Humidity Operating & Storage: 0 to 95% non-condensing
Dimensions 17.3 x 8.3 x 1.7″ (440.0 x 210.0 x 44.0 mm)
19″ standard rack mounting width, 1U height
Weight (2.90 kg)
Warranty Information
Warranty Manufacturer’s Warranty

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