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| 24-Port 10/100Mbps + 2 1000BASE-T + 2 Combo 1000BASE-T/SFP Layer 2 Management Switch |
DES-3028
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Product Features:
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Enhanced Features Including QoS, 4k Groups of 802.1Q VLANs, SIM Stackable
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Brings Advanced Enterprise Network Management Features to a Cost-Effective Level
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Support Standards-based Management Protocols Including SNMP, RMON, Telnet, Web-based GUI, SSH/SSL Protocols, and DHCP Relay Option 82
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Product Description:
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The DES-3028 is a managed 24-port 10/100 Layer 2 stackable switch with 4 Gigabit ports and 2 Combo SFP slots. This switch allows SMBs to set up a secure and effective network at an affordable cost. With additional features such as enhanced network security, bandwidth control, and advanced management, the DES-3028 is a cost-effective switch that delivers proven results.
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Enhanced Security
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The DES-3028 supports many security functions including Access Control List (ACL), 802.1x Port-Based/MAC-Based Access Control, 802.1x Guest VLAN, and RADIUS/TACACS+ authentication.
The D-Link Safeguard Engine incorporates advanced mechanisms to detect an attack against the central processing unit of the switch and to take corrective measures on the attacking interface. When a Denial of Service attack is waged against any of the switches, the D-Link Safeguard Engine detects the threat and prevents the overload of the central processor, thus insuring network integrity and helping to maintain open network bandwidth channels.
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| 802.1Q VLANs |
The DES-3028 provides support for 802.1Q VLANs for improved security and bandwidth utilization. VLANs provide a means of securing each broadcast domain, segregating them from each other. This in turn prevents users on one VLAN from gaining access to resources on other network segments. VLANs can be configured to segment departmental resources. For example, VLANs can be implemented on an SMB network to prevent the Marketing department from gaining access to secure resources in the Accounting department.
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| QoS |
802.1p Priority Tagging helps streamline networks by placing a priority tag in a specified frame. When this frame is received by the switch, it is placed in a priority queue, enabling it to be prioritized ahead of other frames. 802.1p enables administrators to assign and designate traffic priority. This process helps applications such as VoIP and video conferencing to be delivered clear and jitter-free. DES-3028 supports a variety of different ways to prioritize the packets to ensure QoS in a busy network.
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IGMP Snooping
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By passively snooping IGMP packets that are transferred between the DES-3028 and the IP multicast host, registration information is recorded and sorted into multicast groups. The switch can then intelligently forward traffic to only those ports that request multicast traffic. Adversely, without IGMP snooping, multicast traffic is treated like broadcast traffic, with packets forwarded to all ports causing network inefficiencies.
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Management
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The DES-3028 supports a plethora of standards-based management protocols including SNMP, RMON, Telnet, web-based GUI, SSH/SSL protocols, and DHCP Relay Option 82. D-Link also simplifies management by featuring Single IP Management (SIM); a useful tool that allows multiple switches to be configured, monitored, and maintained from any workstation using a single IP Address. D-Link SIM stacking enables administrators to manage a virtual stack of up to 32 switches under a single IP address. D-Link SIM stacking is ideal for networks where switches may span across different buildings, but still require a shared IP address.
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Technical Specifications
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Interface
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| 10/100BASE-TX Ports |
24
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10/100/1000BASE-T Ports
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4
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Combo SFP
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2
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RS-232 Console Port
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yes
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Performance
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Switch Capacity
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12.8Gbps
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64-Byte Packet Fowarding Rate
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9.5Mbps
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MAC Address Table Size
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8K
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| Packet Buffer |
512KB
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Flash Memory
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8MB
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Mini-Jumbo Frame
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2048 Bytes
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Diagnostic LED Indicators
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Power (Per Device)
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yes |
Console (Per Device)
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yes |
| Link/Activity (Per Port) |
yes |
| Speed Indicator (Per Port) |
yes |
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Physical & Environmental
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Power Consumption
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25W
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Power Input
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10 to 240 VAC, 50 to 60HZ Internal Universal Power Supply
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| Dimensions (W x D x H) |
17.36 x 8.15 x 1.73 inch (441mm x 207mm x 44mm)
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| Size |
19-inch Standard Rack-Mount Width, 1U Height
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| Weight |
5.2lbs (2.36kg)
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| Ventilation |
Fanless
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| Heat Dissipation |
84.23 BTU/hour
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| MTBF |
449,357 hours
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| Temperature |
Operating: 32 to 104F (0 to 40C)
Storage: -40 to 158F (-40 to 0C)
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| Operating Humidity |
5% ~ 95% Non-condensing
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| EMI/EMC |
FCC Class A, CE, C-Tick, VCCI Class A
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| Safety |
cUL, LVD
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Interface Options
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RJ-45
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10BASE-T, 100BASE-TX, & 1000BASE-T
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| LC |
With Optional Standard Form-Factor Pluggable (SFP) Gigabit Transceivers
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Software Specifications
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L2 Features
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IGMP Snooping v1, v2 (mac. 256 groups)
IGMP Snooping Fast Leave
802.1D Spanning Tree
802.1w Rapid Spanning Tree
802.1s Multiple Spanning Tree
BPDU Filtering per Port
STP Loopback Detection
802.3ad Link Aggregation (8 Ports per Group/ 6 Groups per Device)
Port Mirroring (One to One, Many to One)
Jumbo Frame (max. 2048 bytes)
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VLAN
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Standard: 802.1Q
Static VLAN Groups: 4K
Dynamic VLAN Groups: 200
GVRP
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Quality of Service (QoS)
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Quality of Service (QoS)
802.1p Priority Queues: 4 Queues
Packet Classification Based on:
Switch Port
VLAN ID
TCP/UDP Port Number
MAC Address
IPv4
802.1p Priority
TOS
DSCP
User Defined Packet Content
Protocol Type
Support WRR/ Strict Mode
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Access Control List (Maximum 256 Profiles/Rules)
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Multi-Layer ACL based on:
Switch Port
VLAN ID
MAC Address
IPv4
802.1p Priority
TOS
DSCP
Protocol Type
TCP/UDP Port Number
Time-Based ACL
User Defined Packet Content
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Network Access/Security
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RADIUS/TACACS+ Authentication for Management Access
RADIUS Accounting for Management Access
Port Security (max. 16 MAC entries per port)
802.1X Port-based Access Control
802.1X MAC-based Access Control
802.1X Guest VLAN
SSH v1, v2 / SSL v3
CPU Interface Filtering
Traffic Segmentation
Broadcast Storm Control
D-Link Safeguard Engine
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Bandwidth Control
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Rate Limit According to Network Speed :
Under 2Mbps: in step of 64KB
Under 100Mbps; in step of 1MB
Above 100Mbps: in step 8MB
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Management
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D-Link Single IP Management (SIM) v1.6
Web-based GUI
CLI (Command Line Interface)
Telnet client/server
TFTP client
SNMP v1, v2c, v3
RMON v1, v2
BOOTP/DHCP Client
SNTP
SYSLOG
Dual Image
Port Description
Web GUI Traffic/ CPU Monitoring
SNMP Trap on MAC Notification
DHCP Auto Configuration
DHCP Relay
DHCP Relay Option 82
SMTP Client (E-mail Notification)
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MIB Support
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MIBII (RFC 1213)
Bridge MIB (RFC 1493)
SNMP v2 MIB (RFC 1907)
RMON v2 MIB (RFC 1757, 2819)
Ether-like MIB (RFC 1643, 2358, 2665)
802.1p MIB (RFC 2674)
IF MIB (RFC 2233, 2863)
RADIUS Authentication Client MIB (RFC 2618)
RADIUS Accounting Client MIB (2620)
Ping & TRACEROUTE MIB (RFC 2925)
Private MIB
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| Warranty |
Limited Lifetime
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Warranty offered by
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Manufacturer
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| Switch Comparision : switch_family_comparison.pdf |
