Milan Technology MIL-SM808G manual Troubleshooting

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7. Troubleshooting

This section is intended to help you solve some common problems encountered while using the MIL-SM808G switch series.

Incorrect connections

Faulty or loose cables

Look for loose or obviously faulty connections. If they appear to be OK, make sure the connections are snug. If that does not correct the problem, try different cables.

Non-standard cables

Non-standard and miswired cables may cause numerous network collisions and other network problems. This can seriously impair network performance. A category 5 cable tester is a recommended tool for every network installation.

Improper Network Topologies

It is important to make sure that you have a valid network topology. Common topology faults include excessive cable length and too many repeaters or hubs between end nodes. In addition, you should make sure that your network topology contains no data path loops. Between any two ends nodes, there should be only one active cabling path at any time. Data path loops will cause broadcast storms that will severely impact your network performance.

Diagnostic LED Indicators

The switch can be easily monitored through panel indicators to assist in identifying problems.

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 awhile, 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.

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Contents MIL-SM808G Regulatory Approval Table of Contents Technical Specifications Introduction Intelligent Management Features FeaturesWeb-based Management Package ContentsManagement Methods Console and Telnet ManagementSnmp Network Management Front Panel Hardware DescriptionPower LED IndicatorsRear Panel Desktop InstallationPower On Segment Application Network ApplicationConnecting a Terminal or PC to the Console Port Network ConfigurationConsole Menu Settings of communication parametersMain Menu Protocol Related Configuration Configures protocol featuresStatus and Counters Actions Port StatusPort Counters System Information Administration Configuration Switch Static ConfigurationDevice Information IP Configuration Change Username Change PasswordPort / Trunk Configuration Port Mirroring Configuration Vlan Configuration IEEE802.1Q VLANs Vlan ConfigureChoose a Vlan Port Based VLANsPage Create a Vlan Group Choose Edit or Delete item Edit / Delete a Vlan GroupPriority Configuration MAC Address Configuration Static MAC Address Add static MAC address Edit static MAC addressDelete static MAC address Filtering MAC Address Edit Filtering MAC addressDelete Filtering MAC address Misc Configuration Port Security MAC Age Interval Broadcast Storm Filtering Max Bridge Transmit Delay Bound Protocol Related Configuration 1.STP STP Enable System Configuration STP Port Configuration Snmp System Options Community Strings Trap Managers Gvrp Lacp Aggregator Setting State Activity Lacp Status Reboot Switch Updating Firmware using the Console Port Page Root Web Management FunctionWeb Management Home Overview Port status Administrator Port StatisticsSingle port counter screen IP Address Switch Settings BasicAdvanced Miscellaneous SettingsPriority Queue Service settings Vlan Operation Mode Protocol Enable SettingIgmp Theory of Operation Gvrp Garp Vlan Registration Protocol Console Port Information Trunking Port ControlsAggregator Setting Aggregator Information Message Description Query Filter Database Igmp SnoopingClick on Filter Database Port Security MAC Filtering Support Protocol-based Vlan Support Port-based VLANs Ieee 802.1Q VlanVlan Configuration Page Configure port VID settings Port VID PvidIngress Filtering Spanning Tree Priority Parameter Description Port Port Mirroring Snmp Trap Manager Security ManagerTftp Update Firmware Configuration Backup Tftp Restore ConfigurationWeb management select Administrator-TFTP update firmware Tftp Backup Configuration Reset SystemReboot Humidity External Power Max Filtering Rate LED IndicatorsDimensions WeightTroubleshooting „ Cabling