LevelOne GSW-2491TXM user manual Diagnosing LED Indicators, Cabling

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at any time. Data path loops will cause broadcast storms that will severely impact your network performance.

Diagnosing LED Indicators

The Switch can be easily monitored through panel indicators to assist in identifying problems, which describes common problems you may encounter and where you can find possible solutions.

IF the power indicator does turn on when the power cord is plugged in, you may have a problem with power outlet, or power cord. However, if the Switch powers off after running for a while check for loose power connections, power losses or surges at power outlet. IF you still cannot resolve the problem, contact your local dealer for assistance.

Cabling

RJ-45 ports: use unshielded twisted-pair (UTP) or shield twisted-pair ( STP ) cable for

RJ-45 connections: 100Ω Category 3, 4 or 5 cable for 10Mbps connections or 100Ω Category 5 cable for 100Mbps connections. Also be sure that the length of any twisted-pair connection does not exceed 100 meters (328 feet). Gigabit port should use Cat-5 or cat-5e cable for 1000Mbps connections. The length does not exceed 100 meters.

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Contents GSW-2491TXM Page Contents STP Snmp Lacp IGMP/GVRP 101 Page Introduction Features Software FeaturesSoftware Upgrade ManagementClass of Service Port TrunkSpanning Tree QOS PolicyPackage Contents Ethernet Switching Technology Physical Dimension Front PanelLED Indicators Rear PanelDesktop Installation Attaching Rubber FeetRack-mounted Installation Attach mounting brackets with screwsPower On Mount the switch in an EIA standard 19-inch RackNetwork Application Small WorkgroupSegment Bridge Small Workgroup ApplicationStacking Workgroup Connecting to the Switch Stackable switch MasterLogin in the Console Interface Console ManagementMain Menu Console Menu LineMain Menu Control Key description Status and Counters Port StatusPort Counters System Information Switch Static Configuration Administration ConfigurationIP Configuration Device InformationUser Name Configuration Port Configuration Password ConfigurationTrunk Configuration Port Mirroring Configuration Port Mirroring interface Vlan Configuration Vlan Configure— Vlan ID Port VID 1~255 Type the Pvid Create Vlan Group „ Create Port-Based Vlan „ Create 802.1Q Vlan Edit / Delete Vlan Group Group Sorted Mode Priority Configuration MAC Address Configuration Static MAC Address „ Add the Static MAC Address „ Edit static MAC address„ Delete static MAC address Filtering MAC Address„ Add the Filtering MAC Address Misc Configuration „ Edit Filtering MAC address„ Delete Filtering MAC address „ IFG compensation Disable or Enable Misc Configuration interface Protocol Related Configuration STPSTP Setup System ConfigurationForward Delay Time forward delay time Per Port Setting Snmp Snmp System Options Community Strings „ Add Community Strings„ Edit Community Name „ Delete Community NameTrap Managers „ Add the trap managerLacp „ Delete Trap Manager Select DeleteWorking Ports Setting Lacp State Activity IGMP/GVRP Group Status802.1x Setup 802.1x802.1x Setup interface Per Port Configuration Misc Configuration System Reset Configuration Factory DefaultSystem Reboot Tftp ConfigurationUpdate Firmware Tftp Restore Configuration Tftp Backup Configuration Modem Upgrade Page About Web-based Management Preparing for Web ManagementSystem Login Online HelpPort status Port Statistics View the Port InformationAdministrator Administrator function, it provides the following functionsSwitch Setting IP AddressBasic Switch Settings Advanced Setting„ MAC Address Table Entry Default is 300 seconds Miscellaneous Setting „ Igmp Theory of Operation Page Console Port Information Port ControlsTrunking Aggregator setting Aggregator Information Aggregator Information State ActivityTrunking State Activity interface Forwarding and Filtering Igmp SnoopingStatic MAC Address MAC filtering Vlan configuration Port-based Vlan Vlan PortBase interface 802.1Q Vlan „ Basic Acceptable Frame type Spanning Tree System Configuration Per Port Configuration„ Forward Delay Time forward delay time Port Mirroring Prot Mirroring interface Snmp Management „ System OptionsSecurity Manager „ Community strings„ Trap Manager 802.1X 802.1x Configuration Per Port Configuration Tftp Update Firmware Configuration Backup Tftp Restore ConfigurationFactory Default Tftp Backup ConfigurationBackup File Name fill the file name „ Default IP address „ Default Gateway „ Subnet maskSystem Reboot Panel ListIP Stacking IP Stacking interface IP Stacking master switch configure finished interface IP Stacking Finished configuring interface „ Faulty or loose cables Incorrect connections„ Non-standard cables „ Improper Network TopologiesDiagnosing LED Indicators „ CablingSwitch architecture LED IndicatorsConnector StandardDimensions Power SupplySafety MAC address