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Table of Contents
Table of Contents
1. Specifications .........................................................................................................................................................................7
1.1 General ..........................................................................................................................................................................7
1.2 Management Software Specifications ...........................................................................................................................8
2. Overview ...............................................................................................................................................................................9
2.1 Introduction ...................................................................................................................................................................9
2.2 Features .........................................................................................................................................................................9
2.3 What’s Included .......................................................................................................................................................... 10
2.4 Hardware Description .................................................................................................................................................. 11
2.4.1 18-Port Gigabit Smart Switch Eco Fanless (LGB2118A) ....................................................................................... 11
2.4.2 24-Port Gigabit Smart Switch Eco Fanless (LGB2124A) ...................................................................................... 12
3. Installation ........................................................................................................................................................................... 15
3.1 Starting Up the Switch ................................................................................................................................................ 15
3.1.1 Hardware and Cable Installation ......................................................................................................................... 15
3.1.2 Cabling Requirements ......................................................................................................................................... 16
3.1.3 Configuring the Management Agent of the Gigabit Smart Switch Eco Fanless ..................................................20
3.1.4 Address Assignment ........................................................................................................................................... 21
3.2 Typical Applications .....................................................................................................................................................24
4. Basic Concepts and Management .......................................................................................................................................27
4.1 Ethernet .......................................................................................................................................................................27
4.2 Logical Link Control (LLC) ............................................................................................................................................ 28
4.3 Media Access Control (MAC) ......................................................................................................................................30
4.3.1 MAC Addressing ................................................................................................................................................30
4.3.2 Ethernet Frame Format .......................................................................................................................................30
4.4 Flow Control ................................................................................................................................................................33
4.5 How Does a Switch Work? ..........................................................................................................................................37
4.6 Virtual LAN ..................................................................................................................................................................38
4.7 Link Aggregation (LGB2118A Only) .............................................................................................................................43
5. Operation of Web-Based Management ..............................................................................................................................45
5.1 Web Management Home Overview ............................................................................................................................45
5.2 Configuration ..............................................................................................................................................................47
5.2.1 System Information .............................................................................................................................................48
5.2.2 Port Configuration .............................................................................................................................................49
5.2.3 VLAN Mode Configuration ................................................................................................................................ 51
5.2.4 VLAN Group Configuration ................................................................................................................................ 51
5.2.5 VLAN Port Isolation Configuration .....................................................................................................................54
5.2.6 Aggregation (LGB2118A Only) ........................................................................................................................... 55
5.2.7 IGMP Snooping ..................................................................................................................................................56
5.2.8 Mirroring Configuration .....................................................................................................................................56
5.2.9 SNMP .................................................................................................................................................................57
5.2.10 Loop Detection ................................................................................................................................................. 59
5.2.11 Broadcast Storm Protection...............................................................................................................................60
5.2.12 Quality of Service (QoS) Configuration .............................................................................................................62
5.3 Monitoring ..................................................................................................................................................................64
5.3.1 Statistics Overview .............................................................................................................................................. 64
5.3.2 Detailed Statistics ...............................................................................................................................................65
5.3.3 IGMP Status .......................................................................................................................................................67
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