Enterasys NAC Controller Hardware Installation Guide 5-1
5

Troubleshooting

Thischapterprovidesinformationconcerningthefollowing:
Unlessotherwisenoted,thefollowinginformationappliestoallNACControllerPEPs.

Using LANVIEW

TheNACControllerPEPsuseabuiltinvisualdiagnosticandstatusmonitoringsystemcalled
LANVIEW.TheLANVIEWLEDs(Figure 51)allowquickobservationofthenetworkstatustoaid
indiagnosingnetworkproblems.

About the Management (MGMT) LED

TheMGMTLED(showninFigure 51)indicatesthattheNACControllerPEPisservingasthe
ManagementModuletocontrolthemanagementfunctionsfortheNACControllerPEP.The
ManagementModulehandlesallIPrequeststothechassisIPaddress,suchasPING,Telnet,
SNMP,andHTTP.TheManagementModulealsohandlestheCLIconfigurationsessionsby
meansoftheconsoleport.

Viewing the Receive and Transmit Activity

Onthe2S408225and7S428019NACControllerPEPs,youcanviewthereceiveandtransmit
activityontheRXandTXLEDs.However,onlyonegroupof12portsmaybeviewedatatime.
Toviewthereceiveandtransmitactivityonagroupofattachedsegments,presstheGROUP
SELECTbutton(seeFigure 51)tosteptothegroupofinterest(Groups1or2).Eachtimethe
GROUPSELECTbuttonispressed,theGROUPLEDlightsupinsequence,indicatingwhich
groupisselected.Thereceiveandtransmitactivityforthatgroupofsegmentsisthenindicatedby
theRXandTXLEDsforeachport.
For information about... Refer to page...
Using LANVIEW 5-1
Troubleshooting Checklist 5-4
Overview of the NAC Controller PEP Shutdown Procedure 5-6