NXESD 1224X2 is a bundled pair of 24-port Gigabit Ethernet switches that can be configured for any NEXIO® product supporting a redundant Ethernet topology.
Advanced Management Features
NXESD 1224X2 supports SNMP version 1. SNMP is a useful tool in managing and controlling SNMP-supported network devices. SNMP enables the Web Smart™ NXESD 1224X2 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.
The NXESD1224X2 also supports spanning tree and provides protection from unintentional cabling loops forming within a network infrastructure. 802.1D spanning tree detects and breaks these loops, ensuring network uptime.
NXESD 1224X2 provides a robust set of security features normally found only in fully managed switching solutions. It is equipped with the D-Link® Safeguard Engine™ to protect the CPU from malicious attack. When frames enter the switch, the D-Link® Safeguard Engine™ detects and blocks broadcast, multicast and unicast flooding that can overload a CPU and bring network traffic to a halt.
In addition the NXESD 1224X2 also provides support for secure, encrypted 802.1x port-based user authentication, broadcast storm control and up to 256 static MAC address entries.
IEEE 802.1Q VLAN Tagging
A VLAN (Virtual LAN) is a collection of computers that are grouped together. VLANs allow the network to be segmented into groups (departmental, hierarchical, and security groups). 802.1Q is a standard that places a tag in a frame identifying which VLAN it belongs to. The advantage of this is that all 802.1Q-compliant devices can work seam-lessly together to manage VLAN traffic.
D-Link® Green Eco-Friendly Technology
D-Link® Green Technology implements special power-saving features that detect link status and cable length, and adjust power usage accordingly. The result is reduced power consumption, less heat dissipation, extended product life and reduced operating costs.
802.1p Priority Tagging
Like 802.1Q VLAN tagging, 802.1p places a tag in a frame to indicate the priority of the frame. This differs from port-based QoS in that all traffic entering a specific port in port-based QoS 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. For example, a VoIP phone that supports 802.1p can assign a priority to its VoIP traffic. When it enters the switch, the switch can then prioritize it so that voice traffic is always clear and jitter-free.
Jumbo Frame Support
Jumbo frame support is designed to improve network throughput and significantly reduce the CPU utilization of large file transfers (such as multimedia files or large data files) by enabling more efficient, larger payloads per packet. The NXESD1224X2 sup-ports jumbo frames up to 10 KB in size.
Web Management Utility
NXESD 1224X2 includes the D-Link® Web Smart™ management utility. This utility provides a valuable tool in managing, planning and troubleshooting network configurations. Managing a Web Smart™ switch takes only minutes. With full-color graphic pictures, diagrams and easy-to-understand navigation menus, using the Web Smart™ management utility is as easy as surfing the Internet. Some of the features include:
- Discovery List – Every Smart NXESD 1224X2 comes with auto-discovery software that automatically detects and displays up to 254 D-Link® Web Smart™ switches running on your network along with a list of their MAC addresses
- Monitor List - The NXESD 1224X2 can be monitored for status and trap messages sent to a designated station
- Trap View – When an abnormal event occurs on the switch, traps can be set to notify the system administrator
- Device Setting – The device setting feature of the web Management Utility allows the network administrator to set the IP address, subnet mask, gateway, send trap to address, system name, password, and location of the NXESD 1224X2
Specifications and designs are subject to change without notice
|Each NXESD 1224X2 consists of 2 D-Link DGS-1224T switches with the specifications detailed below:|
|DGS-1224T||24 ports 10/100/1000 Mb/s with 2 combo SFP expansion slots|
|MAC Address Table Size||8 K|
|Switch Fabric||48 Gb/s forwarding capacity|
|Diagnostic LEDs||Per unit: power
Per port: activity/link and speed
|Packet Buffer||512 KB|
|Port Trunking||3 groups/8 ports per group|
|QoS||802.1 p (4 queues) WRR|
|VLANs||802.1 Q (255 static)|
|RJ45||10BASE-T, 100BASE-TX and 1000BASE-T universal UTP cable recognition for straight-through or crossover cables (MDI/MDI-X)|
|LC||On optional SFP transceiver|
|Network Protocol and Standards|
|IEEE||802.3 Ethernet, 802.3u Fast Ethernet, 802.3x flow control and 802.3ab Gigabit Ethernet, 802.1P QoS, 256 802.1Q VLANs, link aggregation, 802.1D spanning tree, SNMP v1, port mirroring (one-to-one/many-to-one), jumbo frames up to (10240 bytes), port setting on speed, flow control and on/off, central logging, switch discovery management utility, web based management, password control access, 802.1x port based access control, broadcast storm control, static MAC up to 256 entries), D-Link safeguard engine, DHCP client, IGMP snooping|
|Electrical and Electrical Emissions Summary|
|Emissions||CE Mark, FCC Class A|
|Power Supply||100 to 240 VAC, 50/60 Hz internal universal power|
|Power Consumption||35.1 W|
|Safety Agency Certifications and Environmental|
|Safety||CUL, RoHS-compliant, VCCI|
|Temperature||Operating: 32° to 104° F (0° to 40° C)
Storage: -14° to 158° F (-10° to 70° C)
|Humidity||Operating: 10% to 90% RH and non-condensing|
|Heat Dissipation||119.69 (BTU/hr)|
|Dimensions (W x D x H)||17.36 x 8.27 x 1.73 in (440 x 210 x 44 mm)
Note: 19-in rackmount width, 1RU height
|Weight||6.59 lbs (2.99 kg)|
|NXESD1224X2||Pair of redundant 24-port Gigabit Ethernet Layer 2 switches for NEXIO LAN (D-Link® web Smart™ gigabit switch)|
|NXESD1224SPR||Replacement spare switch for NXESD1224X2 pair of 24-port Gigabit Ethernet switches for NEXIO LAN (D-Link® web Smart™ gigabit switch)|