D-link DES-1228 24 PORT 10/ 100M L2 4 Gigabit, Copper Ports+2XCombo, SFP+Websmart

DES-1228
Web Smart 24-Port 10/100 + (4) 1000BASE-T Ports + 2 Combo Ports Switch
High-Performance Switching Solution For Small And Medium Business
Product Features
* Supports Industry Standards: 802.1p, 802.1Q, 802.1D
* CPU DoS Protection to Ensure Uptime
* Supports 802.1x User Authentication for Security
* Easy Management through GUI , Smart Console Utility, and SNMP v1

Product Description
The DES-1228 Web Smart Switch from D-Link is a cost-effective solution for the small and medium business that requires basic management features like VLAN segmentation, QoS prioritization, and secure 802.1x login and authentication, showcased in a low cost, easy to configure, and GUI managed ‘smart’ business solution. The DES-1228 comes with 24 10/100BASE-TX Fast Ethernet ports, 2 combo 1000BASE-T/SFP ports for flexible copper/fiber Gigabit connection and 4 additional 1000Base-T copper interfaces for uplinking to storage area network devices, servers, or core switching solutions. The Graphical User Interface allows you to implement Quality of Service (QoS), VLANs and security without having to go through complex command line management usually found in other managed switches.
D-Link Safeguard Engine
The DES-1228 incorporates advanced mechanisms to detect an attack against the central processing unit of the switch and to take corrective action on the attacking interface. When a Denial of Service attack is waged against the DES-1228, the D-Link Safeguard Engine detects the threat and prevents overload of the central processor thus insuring network integrity and helping to maintain open network bandwidth channels.
802.1D Spanning Tree
Spanning Tree provides protection from unintentional cabling loops forming within a network infrastructure. Loops are dangerous in that they create an unending circle where broadcast and multicast traffic propagate across the network in an endless loop. This creates a storm of traffic that overwhelms the network and brings traffic to a crawl. 802.1D Spanning tree detects and breaks these loops ensuring network uptime.
Port Trunking
The DES-1228 supports static port trunking of up to 6 groups of 8 ports per device. Ports can be combined together to create multi-link loadsharing aggregated trunks to a server or a network backbone. To expand the network, you can also make use of link aggregation to eliminate bottlenecks between the cascaded switches.
802.1Q VLANs
The DES-1228 provides support for 802.1Q VLANs for improved security and bandwidth utilization. VLANs work by segmenting broadcast domains thus reducing network congestion due to constant network broadcasting. In addition VLANs provide a means of securing each broadcast domain from all others. 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.
SNMP Management
The DES-1228 supports SNMP v1. SNMP is a useful tool in managing and controlling SNMP supported network devices. SNMP enables the DES-1228 to be polled to provide valuable information about the status of the unit and send traps on abnormal events. This sharing of vital management information saves time and money.
802.1p Priority Tagging
Like 802.1Q VLAN tagging, 802.1p places a tag in a frame to indicate the priority of the frame. A tag will represent a priority of 0-7 and an 802.1Q compliant switch can read this tag and prioritize traffic accordingly. This differs from port based QoS in that in Port Based QoS all traffic entering a specific port is prioritized the same way with the same value. In 802.1p a port can receive frames with varying priority tags and classify them based on these tags. A VoIP phone that supports 802.1p can assign a priority to its VoIP traffic and when it enters the switch the switch can give it a higher priority so that voice traffic is always clear and jitter-free.
IGMP Snooping allows for the forwarding of multicast packets such as streaming audio, video, without increasing network broadcast congestion. By snooping IGMP registration information within a frame, a list of workstations who have joined the multicast group is created. This list then allows the switch to intelligently forward packets to only the appropriate member workstations.
802.1x Authentication provides a secure means to allow users to log onto your network. When used in conjunction with a RADIUS server, 802.1x requires each user workstation attached to the DES-1228 to provide a username and password before gaining access to the local area network.
Operational Simplicity
The DES-1228 supports a wide array of plug-and-play features:
• 10/100Mbps auto-negotiation
• Universal UTP cable recognition for auto straight-through or crossover cable detection (Auto MDI/MDI-X)
• Full/Half duplex support
• IEEE standards support
Managing the DES-1228 has never been easier. Using its built in browser-based management interface, configuring the switch takes only minutes. With full color graphic pictures, diagrams and easy to understand navigation menus, configuring the DES-1228 with the features you require is as easy as surfing the net. The DES-1228 supports many of today’s most sought after features like 802.1p priority queuing, 802.1Q VLANs, port trunking, 802.1x authentication, port mirroring, SNMP, spanning tree, link aggregation, IGMP Snooping, broadcast storm control, and more.

Product/Performance
Max. Forwarding Rate
• 10M:14,880 pps / 100M:148,809 pps / 1G:1,488,095 pps
Forwarding Mode
• Store and Forward
Switching Capacity
• 12.8 Gbps
Flash Memory
• 2MB
MAC Address
• 8K MAC Address Table
IGMP snooping
• Support 64 multicast groups
802.1D Spanning Tree
• Support per device STP & BPDU forwarding
Static Port Trunk
• Support max 6 groups per device and 8 ports per group
Flow Control
• 802.3x supported flow control
Port mirroring
• Support one-to-one or many-to-one port mirroring
• Support TX, RX and Both mode
IEEE 802.1Q VLAN Group
• Support 256 static VLAN groups
• Able to configure VID from 1-4094
IEEE 802.1p support
• 4 Queues
IEEE 802.1x Port-based Access Control
• Default 802.1x forwarding
Broadcast Storm Control
• Allow specifying the per device threshold in terms of 8K - 4096K Bytes per second
Static MAC Address
• Support 256 Static MAC entries
D-Link Safeguard Engine
• Protect CPU from Broadcast/Multicast/Unicast flooding
Web-based GUI
• Compatible with IE, Netscape, Mozilla, Firefox, Opera, Safari browsers
SNMP v1
• Configurable Community setting
• Support SNMP Trap
DHCP client
• Supports ability to fuction as a DHCP client
Switch Discovery/Management Utility
• Up to 256 agents/switches
Port Setting
• Can set Speed, Duplex mode, flow control
Configuration Backup/Restore
• Via Web GUI
Firmware Backup/Restore
• Via Web GUI
Firmware Upgrade
• Via Smart Console Utility
Reboot
• Via Web GUI
Interface Options
RJ-45 (24 x 10/100BaseTX ports & 4 1000Base-T ports)
• IEEE 802.3 compliance
• IEEE 802.3u compliance
• IEEE 802.3x Flow Control support for Full-Duplex mode, Back Pressure when Half-Duplex mode
• IEEE 802.3ab compliance
SFP (2 combo 1000Base-T/SFP ports)
• IEEE 802.3z compliance
• IEEE 802.3u compliance
• IEEE 802.3x Flow Control support for Full-Duplex mode, Back Pressure when Half-Duplex mode
Network Management
In & Out of Band
• HTTP, SNMP v1, Port Mirroring
Physical & Environmental
AC input
• 100-240 VAC, 50/60Hz
• Internal universal power supply
Temperature
• Operating: 0° – 40° C (32° – 104°F)
• Storage: -10° - 70° C (-14° - 158° F)
Humidity
• Operating: 10%-90% RH
• Storage: 5% ~ 90% RH
Power consumption
• 18.35 Watts
Heat Dissipation
• 62.57 (btu/hr)
Dimension (WxDxH)
• 19-inch, 1U Rack-mount size
• 440mm x 140mm x 44mm (17.3” x 5.51” x 1.73”)
Emission (EMI) and Safety Certifications
EMI-EMC Compliance
• FCC class A, CE Class A, VCCI Class A
Safety Compliance
• cUL, UL