Enterasys Networks 2200 manual 2E253, 2H252, 2H253, and 2H258 Local

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Troubleshooting Checklist

Table 4-2 Troubleshooting Checklist (Continued)

Problem

Possible Cause

Recommended Action

 

 

 

Cannot contact

IP address not assigned.

Refer to the SmartSwitch Series 2E253,

the 2H258-17R

 

2H252, 2H253, and 2H258 Local

through in-band

 

Management User’s Guide for IP address

management.

 

assignment procedure.

 

 

 

 

Port is disabled.

Enable port. Refer to the SmartSwitch Series

 

 

2E253, 2H252, 2H253, and 2H258 Local

 

 

Management User’s Guide for instructions

 

 

to enable/disable ports.

 

 

 

 

No link to device.

1. Verify that all network connections

 

 

between the network management station

 

 

and the 2H258-17R are valid and

 

 

operating.

 

 

2. The problem continues, contact Enterasys

 

 

Networks for assistance.

 

 

 

Port(s) goes into

Loop condition detected.

1. Verify that Spanning Tree is enabled.

standby for no

 

Refer to SmartSwitch Series 2E253,

apparent reason.

 

2H252, 2H253, and 2H258 Local

 

 

Management User’s Guide for the

 

 

instructions to set the type of STA.

 

 

2. Review network design and delete

 

 

unnecessary loops.

 

 

3. If the problem continues, contact Enterasys

 

 

Networks for assistance.

 

 

 

4-6Troubleshooting

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Contents 2H258-17R SmartSwitch Installation User’s Guide Page FCC Notice Class a ITE Notice Bsmi EMC Statement Taiwan Industry Canada NoticeVcci Notice Enterasys NETWORKS, INC Program License Agreement You and Enterasys agree as followsPage Page Declaration of Conformity Contents Troubleshooting Figures Tables Structure of this Guide Using this GuideAbout This Guide Related Documents Document Conventions This guide uses the following conventionsPage Introduction OverviewConnectivity Runtime IP Address DiscoveryRemote Monitoring Rmon Full Duplex Switched EthernetSmartTrunk Traffic Rate Limiting Broadcast SuppressionPort/VLAN Redirect Functions 11 802.1 Port Priority Garp Switch OperationFlow Control Switching Options ManagementOptional HSIMs and VHSIMs Standards CompatibilityLanview Diagnostic LEDs Getting HelpPage Network Requirements 100BASE-FX NetworkPage Installation Installing Options Unpacking the DeviceInstalling the Device Tabletop or Shelf InstallationRackmount Installation Guidelines for the Rackmount InstallationStrain-Relief Bracket Screws Rack Mounting the 2H258-17R Connecting Power Installing the Device in a RackConnecting to the Network Redundant Primary AC outlets are On separate circuitsConnecting to the Network Fiber Optic Connection Completing the Installation Page Troubleshooting Using LanviewPWR CPU Troubleshooting Checklist OFFRefer to the SmartSwitch Series 2E253 2E253, 2H252, 2H253, and 2H258 Local User parameters Using the Reset Button Reset ButtonPhysical Properties SpecificationsDevice Specifications INPUT/OUTPUT Ports Electrical SpecificationsEnvironmental Requirements COM Port Pinout Assignments Regulatory CompliancePage Optional Installations Mode Switch Bank Settings Required ToolsRemoving the Chassis Cover Optional Installations and Mode Switch Bank Settings B-3 Figure B-1 Removing the Chassis Cover Setting the Mode Switches Figure B-2 Mode Switch Location6Optional Installations and Mode Switch Bank Settings Simm Upgrade Locating SIMMsInstalling the Dram Simm Installing Optional Hsim or Vhsim Interface Modules Figure B-5 Hsim and Vhsim Connector LocationsPage Index NumericsIndex-2