Transition Networks MIL-SM808GPXX manual Troubleshooting, Incorrect connections

Page 115

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.

109

Image 115

Contents USER GUIDE Intelligent Fiber SwitchMIL-SM808GPxx 8 Port 100BASE-FX Plus One SFPRegulatory Approval FCC Class A UL CSA C22.2 No EN60950 CE To Contact MiLAN Technology Table of Contents 4-3-4-2. Create a VLAN Group 5-4-3. Console Port Information 5-4-4. Port Controls 5-4-5. Trunking 1. Introduction Intelligent Management Features FeaturesManagement Methods Package ContentsConsole and Telnet Management Web-based Management SNMP Network Management Front Panel Hardware DescriptionStatus Color LED IndicatorsDescription Attaching Rubber Feet Desktop InstallationRear Panel Power Plug Power On/Off SwitchPower On Segment Application Network ApplicationConnecting a Terminal or PC to the Console Port Network ConfigurationBaud Rate 9600 bps Data Bits Parity none Stop Bits Flow Control None Console - Menulogon screen and a new login is necessary in order to continue Control Key 4-1 Main Menu4-2. Status and Counters Actions 4-2-1. Port StatusReset All Sets all counters to 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 ConfigurationPage 4-3-1-1. Device Information 4-3-1-2. IP Configuration 4-3-1-3. Change Username 4-3-1-4. Change PasswordUse this screen to change the Password. The default password is root 4-3-2. Port / Trunk Configuration Quit Exits the port configuration page and returns to previous menu 4-3-3. Port Mirroring Configuration action menu line Save Saves all configured values 4-3-4. VLAN Configuration IEEE802.1Q VLANs 4-3-4-1. VLAN ConfigureChoose a VLAN Port Based VLANsPage 4-3-4-2. Create a VLAN Group Page 4-3-4-3. Edit / Delete a VLAN Group 4-3-5. Priority Configuration Page 4-3-6.MAC Address Configuration 4-3-6-1.Static MAC Address 3. In the Port num field, enter the port number for the device Add static MAC addressDelete static MAC address Edit static MAC address1. Press Edit key to modify a static MAC address 3. Press the Edit key to modify all the items4-3-6-2.Filtering MAC Address 4-3-7.Misc Configuration 4-3-7-1.Port Security 4-3-7-2.MAC Age Interval 4-3-7-3.Broadcast Storm Filtering Page 4-3-7-4.Max Bridge Transmit Delay Bound Actions 4-4.Protocol Related Configuration 4-4-1.STP 4-4-1-1.STP Enable Page 4-4-1-2.System Configuration Page 4-4-1-3.STP Port Configuration 4-4-2.SNMP Page 1. System Name Enter a name to identify the switch 4-4-2-1.System Options3. System Location Enter the location of the switch 4-4-2-2.Community Strings Quit Exits this page and returns to previous menu 4-4-2-3.Trap Managers Press the Space key to choose Enabled or Disabled 4-4-3.GVRP4-4-4.LACP 4-4-4-1.Aggregator Setting 4-4-4-2.State Activity 4-4-4-3.LACP Status 4-5.Reboot Switch 4-6.Updating Firmware using the Console Port Page Page Web Management Function Web-Based ManagementPage 1. Home Page 5-1. Web Management Home Overview5-2. Port status 5-3. Port Statistics 5-4. AdministratorPage 5-4-1. IP Address 5-4-2. Switch Settings 5-4-2-1.BasicPage 5-4-2-2.Advanced 2. Priority Queue Service settings Page No VLAN Default 3. Protocol Enable SettingEnable Internet Group Multicast Protocol Enables IGMP protocol Enable Mode Enables the switch to be the IGMP Querier4. IGMP Theory of Operation Page GVRP GARP VLAN Registration Protocol Baud rate bits/sec Data Bits Parity Check none Stop Bits 5-4-3. Console Port InformationFlow Control none 5-4-5. Trunking 5-4-4. Port ControlsPage 5-4-5-1. Aggregator Setting 5-4-5-3. State Activity 5-4-5-2. Aggregator InformationPage 5-4-6. Filter Database 5-4-6-1. IGMP Snooping 5-4-6-2. Static MAC Address 5-4-6-3. Port Security 5-4-6-4. MAC Filtering 5-4-7. VLAN Configuration 5-4-7-1. Basic Create a VLAN and add tagged member ports to it 5-4-7-2. Port VID Page 5-4-8. Spanning Tree Forward PriorityMax Age Hello TimePage 5-4-9. Port Mirroring 5-4-10. SNMP 3. Trap Manager User Name root Password root 5-4-11.Security Manager5-4-13. Configuration Backup 5-4-13-1. TFTP Restore Configuration 5-4-12. TFTP Update Firmware5-4-13-2. TFTP Backup Configuration 5-4-15. Reboot 5-4-14. Reset SystemReset Switch to default configuration 440mmx 160mmx 44mm L x W x H Technical SpecificationsUL, cUL SafetyIncorrect connections TroubleshootingDiagnostic LED Indicators 90000407Rev. A Cabling