Black Box Gigabit Smart Switch Eco Fanless, LGB2118A, LGB2124A manual Basic Concepts and Management

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Chapter 4: Basic Concepts and Management

There are also some constraints when applying LACP:

1.LACP does not support inter-switch bandwidth aggregation.

2.The ports aggregated must operate in full-duplex mode.

3.The ports in the same Link Aggregation Group must operate at the same speed, for example, all 100 Mbps or all 1000 Mbps. You cannot aggregate a 1000 Mbps port and two 100 Mbps ports for a 1.2 Gbps trunk port.

Terminology

Link Aggregation enables multiple physical links with the same media and speed to be bundled as a logical link forming a Link Aggregation Group with a group ID. From the viewpoint of MAC clients, each Link Aggregation Group is an independent link.

Links in a network can be switch-to-switch, switch-to-station, and station-to-station. The station may be a host or a router.

Link Aggregation, sometimes called port trunking, uses two types of link configuration: static port trunk and dynamic port trunk.

Static Port Trunk: When physical links are changed, the administrator needs to manually configure the switches one by one.

Dynamic Port Trunk: When physical links are changed, LACP takes over and automatically reconfigure. The administrator does not have to do anything and will see the trap message of LACP changed in NMS.

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Contents Supports http and Snmp interface for switch management Trademarks Used in this Manual Trademarks Used in this ManualFCC and IC RFI Statements NOM Statement Table of Contents Table of Contents Specifications Specifications GeneralManagement Software Specifications Vlan Supports Port-based Vlan and Tag-based Ieee 802.1Q VlanOverview Introduction FeaturesOverview What’s Included LGB2118A components Not shown in -1 or2 24-Port Gigabit Smart Switch Eco Fanless LGB2124A LGB2118A LED functionsLGB2124A components Not shown in -3 or LGB2124A LED functionsOptional Modules for LGB2118A and LGB2124A Front view of 1000BASE-SX/LX LC, SFP Fiber TransceiverHardware and Cable Installation InstallationInstallation Starting Up the Switch Cabling Requirements Fiber supported by the switch 100BASE-TX TPVlan Attribute-based Vlan diagram Installation Login screen for the Web Address AssignmentInstallation Prefix Length Typical Applications Gigabit Smart Switch Copper cables Fiber cable RJ-45Media ConverterCopper cables RJ-45 Gigabit Smart Switch Copper cables RJ-45 FinancialEthernet Basic Concepts and ManagementBasic Concepts and Management Logical Link Control LLC MAC sub layer in physical layer in OSI modelMedia Access Control MAC MAC Addressing Ssap address field OptionsEthernet Frame Format 0x0835 0x8137Gigabit Ethernet Frame Ethernet parameters for half-duplex mode Flow ControlBasic Concepts and Management Collision Basic Concepts and Management How Does a Switch Work? Virtual LAN Ethernet switch MiniMini Computer frame Ethernet switch Printer WorkstationsEthernet switch Router 1a2aBasic Concepts and Management VID Link Aggregation LGB2118A Only Basic Concepts and Management Web Management Home Overview Operation of Web-based ManagementOperation of Web-based Management Main menu function tree for Web interface Configuration System InformationOperation of Web-based Management Port Configuration Operation of Web-based Management Vlan Mode Configuration Vlan Group ConfigurationFunction name Vlan Mode Setting Media supportedTag-VLAN Mode 10. Port-Based Vlan Configuration Vlan Port Isolation Configuration Function name Port Isolation ConfigurationAggregation LGB2118A Only Igmp Snooping Mirroring ConfigurationFunction name Igmp Snooping Configuration 15. Mirror ports configuration SnmpOperation of Web-based Management Loop Detection Broadcast Storm Protection Operation of Web-based Management Quality of Service QoS Configuration Operation of Web-based Management Monitoring Statistics OverviewDetailed Statistics Operation of Web-based Management Igmp Status Ping Status Maintenance Warm RestartConfiguration File Transfer Factory DefaultSoftware Upgrade Logout Troubleshooting Troubleshooting Resolving a No Link ConditionQuestions and Answers Contacting Black BoxAppendix MIB Specifications Appendix MIB SpecificationsBlackbox.com Blackbox.com Black Box Tech Support FREE! Live /7