Black Box Gigabit Smart Switch Eco Fanless, LGB2118A, LGB2124A manual Loop Detection

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Chapter 5: Operation of Web-based Management

5.2.10 Loop Detection

Function name: Loop Detection Configuration

Function description: The loop detection is used to detect the presence of traffic. When a packet’s looping detection frame is received by the switch and has a MAC address the same as its own from a port, loop detection occurs. The port will be locked when it receives the looping detection frames. To resume the locked port, delete the looping path, then select “Unlock port” and click on “Apply” to turn on the locked ports.

Figure 5-17. Loop Detection Configuration.

Parameter description:

Mode: Controls whether Loop Detection is enabled (as a whole).

Unlock Time: The period (in seconds) for which a port will be kept disabled if a loop is detected (and the port shuts down).

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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 General SpecificationsVlan Supports Port-based Vlan and Tag-based Ieee 802.1Q Vlan Management Software SpecificationsOverview Introduction FeaturesOverview What’s Included Not shown in -1 or LGB2118A componentsLGB2118A LED functions 2 24-Port Gigabit Smart Switch Eco Fanless LGB2124ANot shown in -3 or LGB2124A LED functions LGB2124A componentsFront view of 1000BASE-SX/LX LC, SFP Fiber Transceiver Optional Modules for LGB2118A and LGB2124AHardware and Cable Installation InstallationInstallation Starting Up the Switch Cabling Requirements 100BASE-TX TP Fiber supported by the switchVlan Attribute-based Vlan diagram Installation Address Assignment Login screen for the WebInstallation Prefix Length Typical Applications Converter Gigabit Smart SwitchCopper cables Fiber cable RJ-45 MediaCopper cables RJ-45 Financial Copper cables RJ-45 Gigabit Smart SwitchEthernet Basic Concepts and ManagementBasic Concepts and Management MAC sub layer in physical layer in OSI model Logical Link Control LLCSsap address field Options Media Access Control MAC MAC AddressingEthernet Frame Format 0x8137 0x0835Gigabit Ethernet Frame Flow Control Ethernet parameters for half-duplex modeBasic Concepts and Management Collision Basic Concepts and Management How Does a Switch Work? Virtual LAN Ethernet switch Printer Workstations Ethernet switch MiniMini Computer frameRouter 1a2a Ethernet switchBasic 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 System Information ConfigurationOperation of Web-based Management Port Configuration Operation of Web-based Management Media supported Vlan Mode ConfigurationVlan Group Configuration Function name Vlan Mode SettingTag-VLAN Mode 10. Port-Based Vlan Configuration Function name Port Isolation Configuration Vlan Port Isolation ConfigurationAggregation LGB2118A Only Igmp Snooping Mirroring ConfigurationFunction name Igmp Snooping Configuration Snmp 15. Mirror ports configurationOperation of Web-based Management Loop Detection Broadcast Storm Protection Operation of Web-based Management Quality of Service QoS Configuration Operation of Web-based Management Statistics Overview MonitoringDetailed Statistics Operation of Web-based Management Igmp Status Ping Status Warm Restart MaintenanceConfiguration File Transfer Factory DefaultSoftware Upgrade Logout Contacting Black Box TroubleshootingTroubleshooting Resolving a No Link Condition Questions and AnswersAppendix MIB Specifications Appendix MIB SpecificationsBlackbox.com Blackbox.com Black Box Tech Support FREE! Live /7