24-Port PoE Gigabit SmartPro Switch with 4 SFP Ports

D-Link Green™ V3.0 Technology
The DGS-1500-28P implements D-Link Green™ 3.0 Technology, which includes a
power saving mode, smart fan, reduced heat dissipation, and cable length detection.
The power-saving features include being able to schedule when to turn off LEDs and
ports, and when to make the switch enter hibernation mode. It detects the length of
connected cables to automatically adjust power usage by saving energy on shorter
cable connections. It also supports power saving by link status, which reduces power
consumption by automatically toggling ports without a link to sleep mode. The DGS-
1500-28P features built-in smart fans that contribute to continuous, reliable, and eco-
friendly operation of the switch. Using a thermal sensor that can detect temperature
change, the fans can react accordingly by utilizing different fan speeds for different
temperatures.

Advanced Features
The DGS-1500-28P boasts advanced features such as Virtual Stacking and Static
Routing. Virtual Stacking reduces the number of IP addresses needed on a network
by configuring up to 32 devices to appear as a single unit with one IP address. This
simplifies network management for small workgroups and allows for switches to be
added without special cabling. In static routing, IP routes are manually entered into a
routing table. This function allows for communication between different user groups in
different VLAN segments in a network. The DGS-1500-28P can handle the inter-VLAN
routing, making the network run faster and more efficiently. This allows the network
router to handle external traffic routing only.

Extensive Layer 2 Features
This switch is equipped with a complete lineup of Layer 2 features including IGMP
Snooping, Port Mirroring, Spanning Tree, and Link Layer Discovery Protocol (LLDP).
The IEEE 802.3x Flow Control function allows servers to directly connect to the switch
for fast, reliable data transfer. At 2000 Mbps Full Duplex, the Gigabit ports provide
high-speed data pipes to servers with minimum data transfer loss. Network maintenance
features include Loopback Detection and Cable Diagnostics. Loopback Detection is
used to detect loops created by a specific port or VLAN and automatically shut down
the affected port or VLAN. The Cable Diagnostics feature, designed primarily for
administrators and customer service representatives, can quickly discover the type of
error on cables and determine the cable quality.

VLAN and Bandwidth Control
The DGS-1500-28P supports Auto Surveillance VLAN (ASV) and Auto Voice VLAN,
which are best suited for VoIP and video surveillance deployments. Auto Surveillance
VLAN is a new, industry-leading technology built into D-Link Smart Switches. This
technology consolidates data and surveillance video transmission through a single
SmartPro switch, sparing businesses the expense of maintaining dedicated hardware and
facilities. ASV also ensures the quality of real-time video for monitoring and control
without compromising the transmission of conventional network data. The Auto Voice
VLAN technology enhances VoIP service by automatically placing voice traffic from
an IP phone to an assigned VLAN. These features guarantee the quality and security
of VoIP traffic with higher priority and an individual VLAN. The DSCP markings on
Ethernet packets enable different levels of service to be assigned to network traffic. As
a result, these voice and video packets take precedence over other packets. Bandwidth
Control allows network administrators to reserve bandwidth for important functions that
require more bandwidth or higher priority.

Secure your Network
D-Link’s innovative Safeguard Engine protects switches against traffic flooding caused
by virus attacks. This switch supports 802.1X port based authentication, allowing
network clients to be authenticated through external RADIUS servers. The Access
Control List (ACL) feature enhances network security and helps protect the network by
screening traffic from illegal MAC or IP addresses. The DGS-1500-28P includes ARP
Spoofing Prevention, protecting the Ethernet network from intruders that might sniff data
frames, modify traffic, or bring traffic to a halt altogether by sending fake ARP messages
to the network. For added security, the DHCP Server Screening feature screens rogue
DHCP server packets from user ports to prevent unauthorized IP assignment.

Versatile Management
The DGS-1500-28P provides a SmartConsole utility and a web-based management
interface that enables administrators to remotely control their network down to the port
level. The SmartConsole easily allows customers to discover multiple D-Link Web
Smart Switches within the same L2 network segment. With this function, users do not
need to change the IP address of their PC. It also simplifies the initial setup of the Smart
Switches. Switches within the same L2 network segment that are connected to the user’s
PC are displayed on screen for instant access. This allows extensive switch configuration
and basic setup of discovered devices including password changes and firmware
upgrades. The DGS-1500-28P also supports D-View 6.0 and Compact Command Line
Interface (CLI) through Telnet. D-View 6.0 is a Network Management System that
allows for the central management of critical network characteristics such as availability,
reliability, resilience, and security. CLI management of the switches is possible through
Telnet, which makes it possible to adjust basic settings, passwords, configuration files,
and firmware with ease.

General

• IEEE 802.3 10BASE-T Ethernet (twisted-pair copper)
• IEEE 802.3u 100BASE-TX Fast Ethernet (twisted-pair copper)
• IEEE 802.3ab 1000BASE-T Gigabit Ethernet (twistedpair copper)
• IEEE 802.3af compliance
• IEEE 802.3at compliance Auto-negotiation
• IEEE 802.3x Flow Control support for Full-Duplex Mode Legacy Mode support

Number of Ports 

• 24: 10/100/1000 Mbps PoE capable, 4 SFP

Network Cables

• UTP Cat. 5, Cat. 5e (100 m max.)
• EIA/TIA-568 100-ohm STP (100 m max.)

Full/Half Duplex

• Full/half duplex for 10/100 Mbps speeds
• Full duplex for Gigabit speed

Media Interface Exchange

• Full duplex

Performance Switching Capacity

• 56 Gbps

Transmission Method

• Store-and-forward

MAC Address Table

• 16K entries per device

MAC Address Update

• Up to 256 static MAC entries
• Enable/disable auto-learning of MAC addresses

Maximum 64 bytes packet forwarding rate

• 41.7 Mpps

Packet Buffer Memory

• 1 MB per device

PoE PoE Standard

• 802.3af & 802.3at

PoE Capable Ports

• 15.4 W or 30 W on ports 1 to 24

PoE Power Budget

• Max.: 370 W, 740 W with external RPS-700

Physical & Environmental AC Input

• 100 to 240 VAC, 50/60 Hz internal universal power supply

Maximum Power Consumption

• 447 W (PoE on)
• 30.1 W (PoE off)

Standby Power Consumption

• 19.7 W/100 V
• 19.8 W/240 V

Fan Quantity

• 2 smart fans

Acoustics

• High speed: 55.3 dBA
• Low speed: 49.5 dBA

Heat Dissipation 

• 1525.16 BTU/hr

Operating Temperature

• -5 to 50 ˚C (41 to 122 ˚F)

Storage Temperature

• -20 to 70 ˚C (-4 to 158 ˚F)

Operating Humidity

• -5 to 50 ˚C (41 to 122 ˚F)

Dimensions (L x W x H)

• 17.32 x 12.20 x 1.73 inches (19” standard rack mounting width, 1U height)

Weight 

• 11.16 lbs

Diagnostic LEDs 

• Power (Per device)
• Link/Activity/Speed (Per 10/100/1000 Mbps port)
• Link/Activity/Speed (Per SFP)
• PoE (Per 10/100/1000 Mbps port)
• PoE Max
• RPS
• LED Select Indicator button

Certifications

•  FCC Class A, CE Class A, ICES-003, VCCI Class A, C-Tick, BSMI

Safety

• UL/cUL, LVD

MTBF

• 206,075 hours

Software Specifications D-Link Single IP Management

• Virtual Stacking/Clustering of up to 32 devices

L2 Features

• MAC Address Table   
• 16K entries
• Flow Control
• 802.3x Flow Control
• HOL Blocking Prevention
• IGMP Snooping
• IGMP v1/v2 Snooping
• Supports 256 IGMP groups
• Supports at least 64 static multicast addresses
• IGMP per VLAN
• Supports IGMP
• Snooping Querier
• Spanning Tree Protocol
• 802.1D STP
• 802.1w RSTP
• 802.1s MSTP²
• Loopback Detection
• Port Mirroring
• One-to-One
• Many-to-One
• Supports Mirroring for Tx/Rx/Both
• 802.3ad Link Aggregation
• DGS-1500-20: Max. 10 groups per device, 8 ports per group
• DGS-1500-28/DGS1500-28P: Max. 14  groups per device, 8 ports per group
• DGS-1500-52: Max. 26 groups per device, 8 ports per group
• Cable Diagnostics
• Configurable MDI/MDIX
• Multicast Filtering
• Forwards all unregistered groups
• Filters all unregistered groups
• Jumbo Frame
• Up to 10,000 bytes
• LLDP
• LLDP-MED

VLAN

• 802.1Q
• VLAN Group
• Max. 4K static VLAN groups
• Max. 4094 VIDs
• GVRP
• Up to 256 dynamic VLANs
• Asymmetric VLAN
• Auto Voice VLAN
• Max. 10 user defined OUI
• Max. 8 default OUI
• Auto Surveillance VLAN

QoS (Quality of Service)

• 802.1p Quality of Service
• 4 queues per port
• Queue Handling
• Strict
• Weighted Round Robin (WRR)
• CoS based on
• 802.1p Priority Queues
• DSCP
• ToS3
• IPv6 Traffic Class³
• IPv6 flow label³
• TCP/UDP port³
• Bandwidth Control
• Port-based (Ingress/Egress, min. granularity 10/100/1000 is 64 Kb/s

L3 Features

• ARP
• 64 Static ARP
• Supports Gratuitous ARP
• IPv6 Neighbor Discovery (ND)²
• IP Interface
• Supports 4 interfaces

L3 Routing

• Default Routing
• Static Routing
• Max. 32 IPv4 Static Route entries
• Max. 128 IPv4 Host Routes
• Max. 16 IPv6 Static Route entries²
• Max. 64 IPv6 Host Routes² 
• MAC Address
• Ether Type
• IPv4 Address
• DSCP
• Protocol Type

Security

• Port Security
• Supports up to 64 MAC addresses per port
• Broadcast/Multicast/Unicast Storm Control
• D-Link Safeguard Engine
• 802.1X Port-based Access Control
• DHCP Server Screening
• IP-MAC-Port Binding²
• Supports 512 address binding entries
• ARP mode
• ACL mode
• Supports DHCP Snooping
• ARP Spoofing Prevention
• Max. 64 entries
• Traffic Segmentation
• SSL
• Supports v1/v2/v3
• Supports IPv63

AAA

• 802.1X Authentication
• Supports local/ RADIUS database
• Supports Port-based access control
• Supports EAP, OTP, TLS, TTLS, PEAP
• IPv6 RADIUS Server²

MIB

• 1213 MIB II
• 1493 Bridge MIB
• 1907 SNMP v2 MIB
• 1215 Trap Convention MIB
• 2233 Interface Group MIB
• D-Link Private MIB
• LLDP MIB
• Power-Ethernet MIB³

RFC Standard Compliance

• RFC Standard Compliance
• RFC 783 TFTP
• RFC 854 Telnet Server
• RFC 951 BootP/DHCP Client
• RFC 1157 SNMP v1, v2, v3
• RFC 1213 MIB II
• RFC 1215 MIB Traps Convention
• RFC 1350 TFTP
• RFC 1493 Bridge MIB
• RFC 1769 SNTP
• RFC 1542 BootP/DHCP Client
• RFC 1901 SNMP v1, v2, v3
• RFC 1907 SNMP v2 MIB
• RFC 1908 SNMP v1, v2, v3
• RFC 2068 FCS
• RFC 2131 BootP/DHCP Client
• RFC 2138 RADIUS Authentication
• RFC 2139 RADIUS Authentication
• RFC 2233 Interface Group MIB
• RFC-2246 SSL
• RFC 2475
• RFC 2570 SNMP v1, v2, v3
• RFC 2575 SNMP v1, v2, v3
• RFC 2598 CoS

OAM

• Cable Diagnostics
• Factory Reset

Management

• Web-based GUI
• Single IP Management
• Compact CLI
• Telnet Server
• TFTP Client
• Configurable MDI/MDIX
• SNMP
• Supports v1/v2/v3
• SNMP Trap
• Trap for SmartConsole Utility
• System Log
• Max. 500 log entries
• BootP/DHCP Client
• ICMP v6²
• IPv4/v6 Dual Stack²
• DHCP Auto Configuration
• Debug Command
• Time Setting
• SNTP
• RMONv1
• Trusted Host
• Time-based PoE³
• User Account
• Upload/Download Configuration file
• Backup/Upgrade firmware
• Smart Wizard
• SNTP

Green™ V3.0 Technology

• Power Saving by:
• Link Status
• Cable Length
• LED Shutoff
• Port Standby
• System Hibernation

^{2 Available for the next firmware release in 2012.
3 Available on DGS-1500-28P only.}