Specifications

Running Traces
A-10 Troubleshooting a RoamAbout Switch
Running Traces
Tracecommandsenableyoutoperformdiagnosticroutines.Youcansetatracecommandwitha
keyword,suchasauthenticationorsm,totraceactivityforaparticularfeature,suchas
authenticationorthesessionmanager.
Using the Trace Command
TracingisusedonlyfordebuggingMSS.Thecommandsettra ce areaenablesyoutoview
messagesaboutthestatusofaspecificportionoftheMSS.
Therearemanytrace parametersthatyoucanrun.(See“ListofTraceAreas”onpage A‐12.)
However,thischapterdescribesonlyauthentication,
authorization,thesessionmanager(sm),and 
802.1Xusers(dot1x),fourareasthat youmightfindmosthelpful.
Tofocusontheobjectofthetrace,youcanaddoneormoreoftheseparameterstothesettrace
command:
set trace [area] [mac-addr mac-addr] [port port-num] [user username] [level
level]
Tracing Authentication Activity
Tracingauthenticationactivitycanhelpyoudiagnoseauthenticationproblems.Youcantraceall
authenticationactivity,oronlytheactivityforaspecificuser,MACaddress,orport.
Forexample,totraceallauthenticationactivityatlevel 4,type thefollowingcommand:
RBT-8100# set trace authentication level 4
success: change accepted.
Tracing Session Manager Activity
Youcantraceallsessionmanagercommands,oronlythoseforaspecificuser,MACaddress,or
port.Forexample,totraceallsessionmanager(sm)activityatlevel 3,typethefollowing
command:
RBT-8100# set trace sm level 3
success: change accepted.
Tracing Authorization Activity
Tracingauthorizationactivitycanhelpdiagnoseauthorizationproblems.Forexample,totracethe
authorizationofMACaddress00:00:30:b8:72:b0,typethefollowingcommand:
RBT-8100# set trace authorization mac-addr 00:00:30:b8:72:b0
success: change accepted.
Tracing 802.1X Sessions
Tracing802.1Xsessionscanhelpdiagnoseproblemswithwirelessclients.Forexample,totrace
802.1Xactivityforuser[e-mail]atlevel 4,typethefollowingcommand:
Caution: Using the set trace command can have adverse effects on system performance.
Enterasys Networks recommends that you use the lowest levels possible for initial trace
commands, and slowly increase the levels to get the data you need.