Enterasys Networks 2H252-25R manual 2E253, 2H252, 2H253

Page 45

 

 

Troubleshooting Checklist

Table 4-2 Troubleshooting Checklist (Continued)

 

 

 

 

Problem

Possible Cause

Recommended Action

 

 

 

Cannot navigate beyond

Improper Community Names

1. Refer to the SmartSwitch Series

Password screen.

Table.

2E253, 2H252, 2H253 and

 

 

2H258 Local Management

 

 

User’s Guide for Community

 

 

Names Table setup.

 

 

2. If you have forgotten the

 

 

Community Names, refer to

 

 

Appendix B for instructions on

 

 

how to set the mode switch to

 

 

reset the Community Names to

 

 

their default values.

 

 

 

Cannot contact the

IP address not assigned.

Refer to the SmartSwitch Series

2H252-25R through

 

2E253, 2H252, 2H253 and 2H258

in-band management.

 

Local Management User’s Guide

 

 

for IP address assignment

 

 

procedure.

 

 

 

 

Port is disabled.

Enable the port. Refer to the

 

 

SmartSwitch Series 2E253, 2H252,

 

 

2H253 and 2H258 Local

 

 

Management User’s Guide for the

 

 

instructions to enable/disable ports.

 

 

 

 

No link to device.

1. Verify that all network

 

 

connections between the network

 

 

management station and the

2H252-25R are valid and operating.

2. If the problem continues, contact Enterasys Networks for assistance.

Troubleshooting 4-7

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Contents 2H252-25R SmartSwitch Installation User’s Guide Page Page Industry Canada Notice FCC NoticeVcci Notice Class a ITE NoticeEnterasys NETWORKS, INC Program License Agreement Page Declaration of Conformity Page Contents Troubleshooting Figures Tables Using this Guide About This GuideStructure of this Guide Related Documents Guide uses the following conventions Document ConventionsPage Overview IntroductionRuntime IP Address Discovery ConnectivitySmartTrunk Full Duplex Switched EthernetBroadcast Suppression Remote Monitoring RmonPort/VLAN Redirect Functions Rate LimitingFlow Control Garp Switch Operation11 802.1 Port Priority Switching OptionsManagement Optional HSIMs and VHSIMsLanview Diagnostic LEDs Standards CompatibilityYear 2000 Compliant Your email address Getting Help10BASE-T Network Network Requirements100BASE-TX Network Unpacking the Device InstallationInstalling Options Tabletop or Shelf Installation Installing the DeviceGuidelines for Tabletop and Shelf Installations InstallationGuidelines for the Rackmount Installation Rackmount InstallationAttaching the Strain-Relief Bracket Strain-Relief Bracket Screws Rack Mounting the 2H252-25RRackmount Bracket Screws Redundant Primary AC outlets are On separate circuits Connecting PowerConnecting Twisted Pair Cables to Fixed Ports Connecting to the NetworkConnecting the Twisted Pair Segment Straight-Through Cable Completing the Installation Using Lanview TroubleshootingLanview LEDs PWR CPU FDX Local Management User’s Guide Troubleshooting Checklist2E253, 2H252, 2H253 SmartSwitch Series 2E253 Reset Button Using the Reset ButtonPage Specifications Device SpecificationsPhysical Properties Electrical Specifications Environmental RequirementsINPUT/OUTPUT Ports Regulatory Compliance COM Port Pinout AssignmentsPage Required Tools Optional Installations Mode Switch Bank SettingsRemoving the Chassis Cover Optional Installations and Mode Switch Bank Settings B-3 Screws Chassis Cover Front Panel Figure B-2 Mode Switch Location Setting the Mode Switches6Optional Installations and Mode Switch Bank Settings Locating SIMMs Simm UpgradeInstalling the Dram Simm Figure B-5 Hsim and Vhsim Connector Locations Installing Optional Hsim or Vhsim Interface ModulesPage Numerics IndexIndex-2