D-Link DES-1226G manual Features and Benefits, LEDs, VLAN Virtual Local Area Network

VLAN (Virtual Local Area Network)

A VLAN is a group of end-stations that are not constrained by their physical location and can communicate as if a common broadcast domain, a LAN. The primary utility of using VLAN is to reduce latency and the need for routers, by using faster switching instead. Other VLAN utilities include:

„Security: Security is increased with the reduction of opportunity in eavesdropping on a broadcast network because data will be switched to only those confidential users within the VLAN.

„Cost Reduction: VLANs can be used to create multiple broadcast domains, thus eliminating the need of expensive routers.

Port-based (or port-group) VLAN is the common method of implementing a VLAN, and is the one supplied in the Switch.

Features and Benefits

„(24) 10/100BASE-TX Fast Ethernet ports + (2) 1000BASE-T Gigabit Ethernet ports or (2) SFP(Mini GBIC) for 2 additional copper or fiber Gigabit connections

„Auto MDI/MDI-X support on each port

„Full-/half- duplex transfer mode for 10/100Mbps Fast Ethernet transmission

„Full-duplex transfer mode for Gigabit Ethernet transmission

„Wire-speed reception and transmission

„Store-and-Forward switching method

„Integrated address Look-Up Engine, supports 8K MAC addresses

„Supports 256K bytes RAM for data buffering

„Extensive front-panel diagnostic LEDs

„Broadcast storm protection

„IEEE 802.3x flow control for full-duplex

„Back pressure flow control for half-duplex

„Support Simple Network Management Protocol (SNMP)

„Supports MIB for:

„RFC1213 MIB II.

„Private MIB.

„Supports port-base VLAN, 802.1Q-based VLAN

„Supports Trunking

„Supports Port-mirroring

„Supports Port-setting for Speed/Disable, Flow control

„Easy configuration via Web Browser

„Easy setting via Web Management Utility

„Standard 19” Rack-mount size

LEDs

LED stands for Light-Emitting Diode.

The front panel LEDs provides instant status feedback and simplifies monitoring and troubleshooting tasks.

Figure 1. LED indicators of the Switch

„Power

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