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Milan Technology MIL-SM808G Troubleshooting, „ Faulty or loose cables, „ Non-standard cables

Models: MIL-SM808G

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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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Milan Technology MIL-SM808G manual Troubleshooting, „ Faulty or loose cables, „ Non-standard cables, Incorrect connections

Contents

8 Port 100BASE-FX Plus One GBIC Intelligent Fiber Switch MIL-SM808GUSER GUIDE European Notice Five-Year Limited WarrantyRegulatory Approval Canadian EMI NoticeTable of Contents 4. Network Configuration2. Hardware Description 5. Web-Based Management 6. Technical SpecificationsFigure 1-1. The MIL-SM808G switch 1. IntroductionIntelligent Management Features FeaturesWeb-based Management Package ContentsManagement Methods Console and Telnet ManagementSNMP Network Management Console Hardware DescriptionFront Panel Indicators PortTable 2-1. The description of LED Indicators LED IndicatorsFigure 2-2. LED Indicators Power LNK ACTFigure 2-3. The Rear Panel of the MIL-SM808G Switch Desktop InstallationRear Panel Attaching Rubber FeetPower On Segment Application Network ApplicationNetwork Configuration Connecting a Terminal or PC to the Console PortFigure 4-1. Connecting the switch to a terminal via RS-232 cable Console - Menu Baud Rate 9600 bps Data Bits Parity none Stop Bits Flow Control NoneFigure 4-2. The settings of communication parameters 4-1 Main Menu Protocol Related Configuration Configures protocol featuresControl Key 4-2. Status and Counters Actions 4-2-1. Port StatusActions 4-2-2. Port CountersKernel version Displays Boot PROM version 4-2-3. System InformationFirmware Version Displays the switch’s firmware version Hardware Version Displays the switch’s Hardware version4-3-1. Administration Configuration 4-3. Switch Static ConfigurationActions 4-3-1-1. Device InformationActions 4-3-1-2. IP Configuration4-3-1-4. Change Password 4-3-1-3. Change UsernameUse this screen to change the Password. The default password is root Actions 4-3-2. Port / Trunk ConfigurationActions 4-3-3. Port Mirroring Configuration4-3-4. VLAN Configuration IEEE802.1Q VLANs 4-3-4-1. VLAN ConfigureChoose a VLAN Port Based VLANsPage Actions 4-3-4-2. Create a VLAN Group1. Choose Edit or Delete item 4-3-4-3. Edit / Delete a VLAN GroupActions 4-3-5. Priority Configuration4-3-6.MAC Address Configuration 4-3-6-1.Static MAC Address Add static MAC address Edit static MAC addressDelete static MAC address 4-3-6-2.Filtering MAC Address Edit Filtering MAC addressDelete Filtering MAC address 4-3-7.Misc Configuration 4-3-7-1.Port Security Actions 4-3-7-2.MAC Age IntervalActions 4-3-7-3.Broadcast Storm FilteringActions 4-3-7-4.Max Bridge Transmit Delay Bound4-4.Protocol Related Configuration 4-4-1.STP 4-4-1-1.STP Enable 4-4-1-2.System Configuration 4-4-1-3.STP Port Configuration 4-4-2.SNMP 4-4-2-1.System Options 1. System Name Enter a name to identify the switch3. System Location Enter the location of the switch Actions 4-4-2-2.Community StringsActions 4-4-2-3.Trap ManagersActions 4-4-3.GVRP4-4-4.LACP Actions 4-4-4-1.Aggregator SettingActions 4-4-4-2.State ActivityActions 4-4-4-3.LACP Status4-5.Reboot Switch 4-6.Updating Firmware using the Console Port Page root Web-Based ManagementWeb Management Function root5-1. Web Management Home Overview 1. Home Page5-2. Port status 5-4. Administrator 5-3. Port StatisticsA single port counter screen 5-4-1. IP Address 5-4-2. Switch Settings 5-4-2-1.Basic1. Miscellaneous Settings 5-4-2-2.Advanced2. Priority Queue Service settings 3. Protocol Enable Setting Enable Internet Group Multicast Protocol Enables IGMP protocolVLAN Operation Mode 4. IGMP Theory of Operation GVRP GARP VLAN Registration Protocol 5-4-3. Console Port Information Baud rate bits/sec Data Bits Parity Check none Stop BitsFlow Control none 5-4-5. Trunking 5-4-4. Port Controls5-4-5-1. Aggregator Setting 5-4-5-3. State Activity 5-4-5-2. Aggregator InformationQuery 5-4-6. Filter Database 5-4-6-1. IGMP SnoopingMessage Description2. Click on Filter Database 5-4-6-2. Static MAC Address5-4-6-3. Port Security 5-4-6-4. MAC Filtering 5-4-7. VLAN Configuration Support Port-based VLANs IEEE 802.1Q VLANSupport Protocol-based VLAN 5-4-7-1. Basic VLAN ConfigurationPort Based VLANs 2. Click Add 3. Type a name for the new VLAN 1. From the main menu, click Administrator -- VLAN Configuration4. Type a VID between 2 to 4094. The default is Create a VLAN and add tagged member ports to itIngress Filtering Configure port VID settings5-4-7-2. Port VID Port VID PVID5-4-8. Spanning Tree Forward ParameterDescription PriorityPriority ParameterDescription Port5-4-9. Port Mirroring 5-4-10. SNMP 3. Trap Manager 5-4-11.Security Manager5-4-12. TFTP Update Firmware 5-4-13. Configuration Backup 5-4-13-1. TFTP Restore ConfigurationIn web management select Administrator-TFTP update firmware 5-4-13-2. TFTP Backup Configuration 5-4-14. Reset System5-4-15. Reboot Weight Technical SpecificationsLED Indicators Dimensions„ Improper Network Topologies 7. Troubleshooting„ Faulty or loose cables „ Non-standard cables„ Cabling