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Chapter 2: Overview
2. Overview2.1 Introduction
The Gigabit Smart Switch Eco Fanless is a standard switch that meets all IEEE 802.3/u/x/z Gigabit and Fast Ethernet specifications.
The LGB2118A switch has (16) 10-/100-/1000-Mbps TP por ts and (2) Gigabit SFP fiber transceiver slots. The LGB2124A switch has
(20) 10/100/1000Mbps TP ports and (4) Gigabit dual media TP/SFP transceiver slots. Both switches support http and SN MP
interfaces for switch management. The network administrator can logon to the switch to monitor, configure, and control each
port’s activity. In addition, the switch implements Quality of Service (QoS), VLAN, and Trunking.
Increase power saving support or reduce power consumption with power management.
The LGB2118A switch’s Ports 17–18 support SFP fiber modules (with LC connectors). The LGB2124A switch’s Ports 21, 22, 23, and
24 include two types of media—TP and SFP Fiber (with LC connectors). The four combo ports on the LGB2124A support
10-/100-/1000-Mbps TP or 1000 -Mbps SFP Fiber with auto-detection. A 1000-Mbps SFP Fiber transceiver is used for high-speed
connection expansion.
Table 2-1. 1000-Mbps SFP fiber transceivers.
Product Code Speed Connector/Distance Mode Component
LFP402 1000 Mbps LC, 2 km Multimode, 1300 nm SFP fiber transceiver
LFP401 1000 Mbps LC, 20 km Single-mode, 800 nm SFP fiber transceiver
LFP403 1000 Mbps LC, 40 km Single-mode SFP fiber transceiver
LFP404 1000 Mbps LC, 50 km Single-mode SFP fiber transceiver
10-/100-/1000-Mbps TP is a st andard Ethernet port that meets all IEEE 802.3/u/x/z Gigabit, Fast Ethernet specifications. The
1000-Mbps SFP Fiber transceiver is a Gigabit Ethernet port that fully complies with all IEEE 802.3z and 1000BASE-SX/LX
standards.
2.2 Features
The 18- or 24-Port Gigabit Smart Switch Eco Fanless, a standalone off-the-shelf switch, provides the comprehensive features listed
below for users to perform system network administration and efficiently and securely serve your network.
• Quality of Service (QoS): The switch supports 802.1p VLAN tag priority and DSCP on Layer 3 of the network framework.
• VLAN: Supports Port-based VLAN , IEEE 802.1Q Tag VLAN. LGB2118A supports 18 active VLANs and LGB2124A supports 24
active VLANs and VLAN IDs 1–4 094.
• Port Trunking (LGB2118A Only): Allows one or more links to be aggregated together to form a link aggregation group by the
static setting.
• Power Saving: The switch uses two proprietary power management techniques that detect when the client is idle and also
detect the cable length automatically. This saves the switch power and reduces the power consumption.
• The LGB2118A has (16) and the LGB2124A has (20) 10-/100-/1000-Mbps Auto-negotiation Gigabit Ethernet TP ports.
• The LGB2118A has (2) SFP fiber module ports and the LGB2124A has (4) 10-/100-/1000-Mbps TP or 1000-Mbps SFP Fiber dual
media autosensing ports.
• Includes 512-KB on-chip frame buffer.
• Supports 9-KB jumbo frames.
• Programmable classifier for QoS (Layer 2/Layer 3).
• Provides 8K MAC address and supports VLAN ID (1–4094).