High CPU Utilization Due to Cat4k Mgmt LoPri in WS-C4507R-E _ LAN, Switching and Routing _ Cisco...

12/5/2015 HighCPUutilizationduetoCat4kMgmtLoPriinWSC4507RE|LAN,SwitchingandRouting|CiscoSupportCommunity|6016|11545226

https://supportforums.cisco.com/discussion/11545226/highcpuutilizationduecat4kmgmtlopriwsc4507re 1/12

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HighCPUutilizationduetoCat4kMgmtLoPriinWSC4507RE

UnansweredQuestion

HCLSupport3yearsago

Hi,

WearegettingtheHIGHCPUprocessduetoCat4kMgmtLopriwithbothcoreSwitchesinstalledattheCustomersite.

HTAINHYD03XXXCS0001#shprocessescpusorted

CPUutilizationforfiveseconds:89%/2%oneminute:68%fiveminutes:59%

PIDRuntime(ms)InvokeduSecs5Sec1Min5MinTTYProcess

5241015708283160588800068.02%43.64%33.26%0Cat4kMgmtLoPri

51102005809666784354315277.83%11.70%12.78%0Cat4kMgmtHiPri

1111814896792256059131707.43%7.41%7.42%0SpanningTree

HTAINHYD03XXXCS0002#shprocessescpusorted

CPUutilizationforfiveseconds:66%/3%oneminute:51%fiveminutes:48%

PIDRuntime(ms)InvokeduSecs5Sec1Min5MinTTYProcess

523078834762717954896037.51%20.72%18.28%0Cat4kMgmtLoPri

51181077791218219809179938.63%13.57%14.40%0Cat4kMgmtHiPri

105337527184229752486008.07%4.48%3.80%0IPInput

111190137997680949735234886.63%6.75%6.75%0SpanningTree

223911743202960863193071.43%1.46%1.45%0HSRPCommon

Alsoattachingherethelogsshowversion,showprocesscpusorted,showlogging,showinterfaceforboththeSwitches.

SuggestmeonthisissuefacingandconfirmifthereisanyBUGimpactorsomeotherspecificreason??

Regards,

Ashutosh



Attachment:131041HTAINHYD03XXXCS0002.txt.zip131042HTAINHYD03XXXCS0001.txt.zip

Ihavethisproblemtoo.1vote

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GiuseppeLarosa3yearsago

HelloAsh,

theseprocesses

Cat4kMgmtLoPriandCat4kMgmtHiPri

arespecificofC4500architecturetofurthertroubleshootyourissueyoushouldreadthefollowingspecificdocument:

http://www.cisco.com/en/US/products/hw/switches/ps663/products_tech_note09186a00804cef15.shtml

Theseprocessesareactuallycontainersofmultipleprocessesandyouneedtouse

showplatformhealth

togoonintheinvestigation

Edit:

fromthelogbufferofthefirstswitchtherearesomemessagesthatarequiteimportant



068722:May811:47:15.797IST:%C4K_HWACLMAN4ACLHWPROGERR:InputSecurity:Vlan522ADWEAhardwareTCAMlimit,somepacketprocessingwillbesoftwareswitched.

068723:May811:47:15.797IST:%C4K_HWACLMAN4ACLHWPROGERRREASON:Input(null,46/Normal)Security:Vlan522ADWEAinsufficienthardwareTCAMmasks.

SamekindofmessagesarereportedforotherVlans

CLMAN4ACLHWPROGERR:InputSecurity:Vlan424ArmstronghardwareTCAMlimit,somepacketprocessingwillbesoftwareswitched.

068743:May1412:59:41.618IST:%C4K_HWACLMAN4ACLHWPROGERRREASON:Input(null,16/Normal)Security:Vlan424ArmstronginsufficienthardwareTCAMmasks.

CLMAN4ACLHWPROGERR:InputSecurity:Vlan427LaureatehardwareTCAMlimit,somepacketprocessingwillbesoftwareswitched.

068747:May1413:01:37.008IST:%C4K_HWACLMAN4ACLHWPROGERRREASON:Input(null,30/Normal)Security:Vlan427LaureateinsufficienthardwareTCAMmasks.

ThismeansthatthedeviceisfallingbacktoprocessswitchingbecausetheportionoftheTCAMtablededicatedtoimplementationofACLsisfull,youshouldreviewtheACLsappliedtoSVIvlan522,vlan440,vlan424andsoontounderstandwhythishappens.Thismayexplainthehighcpuusageonthedevice

onthefirstdevicethereisalsoanIPaddressconflictwithanexternalhost

069004:Jun1412:37:59.602IST:%IP4DUPADDR:Duplicateaddress10.119.81.161onVlan525,sourcedby4487.fc8a.2929

OUIsearchfor4487fcprovidesthefollowingresult:

4487FC(hex)ELITEGROUPCOMPUTERSYSTEMCO.,LTD.4487FC(base16)ELITEGROUPCOMPUTERSYSTEMCO.,LTD.NO.239,Sec.2,TiDingBlvd.Taipei11493TAIWAN,REPUBLICOFCHINA

Edit2:

thesamekindoferrorappearsinthelogbufferofthesecondswitch:

069846:Jul416:30:55.682IST:%C4K_HWACLMAN4ACLHWPROGERR:InputSecurity:Vlan480OraclehardwareTCAMlimit,somepacketprocessingwillbesoftwareswitched.

069847:Jul416:30:55.682IST:%C4K_HWACLMAN4ACLHWPROGERRREASON:Input(null,47/Normal)Security:Vlan480OracleinsufficienthardwareTCAMmasks.

Hopetohelp

Giuseppe

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HCLSupport3yearsago

HelloGiuseppe,

Alsoattachingheretheoutputcommandshplatformcpupackstatall,showplatformhealth.Showloggingtoinvestigatethiscasebrief.

FindtheattachmentforboththeSwitches.

Regards,

Ashutosh

Attachment:131015HYDCore2log.txt.zip

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HelloAshutosh,

theissueiswiththeswitchconfiguration:ACLsorpolicymapsusedforQoShaveusedalltheportionofTCAMdedicatedtothispurpose,andthiscausesfallbacktoprocessswitchinginseveralclientvlanswithimpactoncpuusage

http://www.cisco.com/en/US/docs/switches/lan/catalyst4500/12.2/53SG/system/messages/emsg.html#wp1253343

Edit:

youmaywanttoopenaTACservicerequesttogetfurtherhelponthis.

Hopetohelp



Giuseppe

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HCLSupport3yearsago

Hi,

Agreewiththereasonexplaininghereforthiscause.

Alsoconfirmifsomeotherreasonmaybefoundoutwiththeshplatformcpupackstatall,showplatformhealth.hopethatmayhelpus.

Regards,

Ashutosh

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HelloAshutosh,

asfarasIcanseeinthelatestlogfilestherearenootherreasonsforhighcpuusage

PacketsReceivedbyPacketQueue

QueueTotal5secavg1minavg5minavg1houravg



[outputomitted]

ACLswprocessing65058450413381096906785

thenyouseemanyitemsusedat100%relatedtoACLorQoS

like

RkiosQoSPolicyMaps356.320%0.03100%

AclClassifierIdToCla48.000%0.07100%

RkiosQoSClassMaps896.000%0.16100%

AclToIosFilterMapLis384.000%0.07100%

and

AclOp2048.000%0.17100%

AclOpAceSet2559.960%3.10100%

AclClassifier1280.000%3.71100%

AclFeature2570.040%9.35100%

Acl1408.000%4.08100%

Ace249215.853%287.78100%

tobenotedalsosomeentriesrelatedtoPIMareat100%

PimPhyports1054.6824%261.56100%

PimPorts906.2531%282.75100%

PimModules162.001%3.16100%

PimSlots6.002%0.16100%

PimChassis38.256%2.39100%

Hopetohelp

Giuseppe

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AlcidesMiguel2yearsago

HiHCL,

Haveyouresovedthisissue?IfsohowdoyouresolvedI'vethesameproblemtoo.:(

Bestregards,

AlcidesMiguel

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PostedJuly6,2012at12:05AMByHCLSupportStats:Replies: 6 OverallRating:Views: 19470 Votes: 1Shares: 0Tags:Notags.

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High CPU Utilization Due to Cat4k Mgmt LoPri in WS-C4507R-E _ LAN, Switching and Routing _ Cisco...

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