In Cisco 3750 facing high CPU utilization for specific period. During this period traffic response times across the switch degrades. Steps to identify interface potentially generating traffic. I have attached 'sh proc cpu history' , ' sh ip traffic', 'sh proc cpu sorted' during troubled period .
View 5 RepliesWS-C3750G-24TS-S1U switch stack with high CPU utilization. 3 switches are stacked and using PBR on that. I am attaching the show cpu process as an attachment.The current template is "desktop routing" template.The selected template optimizes the resources in the switch to support this level of features for 8 routed interfaces and 1024 VLANs. [code]
View 0 Replies View RelatedI've been looking at reported problems with our Vdeio Conferencing kit attched to a stack of 3750's (which I think is down to QoS) but this got me looking at the logs. We get a lot of high CPU utilization warnings mainly for SNMP (315), Hulc running con (95), Virtual exec (289). I understand the last two are normal, and the SNMP one is probably Cisco Works polling as it happens every 4 hours.
However I've got an odd one: Apr 25 07:34:58: %SYS-1-CPURISINGTHRESHOLD: Threshold: Total CPU Utilization(Total/Intr): 93%/0%, Top 3 processes(Pid/Util): 296/85%, 144/0%, 154/0%
What is Pid 296? It's not listed on the switch:
293 39056 18456 2116 0.00% 0.00% 0.00% 0 SpanTree Helper
294 8 73 109 0.00% 0.00% 0.00% 0 EEM Server
295 0 2 0 0.00% 0.00% 0.00% 0 EEM Policy Direc
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I have some events where the CPU utilization in a cluster switches of WS-3750 is going to 100%, the process with the major utilization of CPU is the "hulc running con".
View 3 Replies View RelatedI have a Switch WS-C3750E-48PD-SF with IOS 12.2(58)SE2 which reports more than 80% in utilization of memory I don't know what is causing the high memory utilization.
View 14 Replies View RelatedI have a new cisco 3750 stack comprised of 8 members (6 x 3750G-48PS and 2 x 3750V2-48PS) running 'c3750-ipservicesk9-mz.122-58.SE2.bin'. I am seeing high memory utilisation, it seems to sit fairly stable and I do not see an increase but this has only been running a few days. No errors or performance issues. Should this be a cause for concern?
View 3 Replies View RelatedI am a new network engineer on a retail company and I am having a problem on the High utilization of my 3-stack switch 2960 only during Peak Hours of the Store Sales.
Note: on Peak hours, it is peaking at 90-95 %
here is the utilization after Peak hours:
4444333334444433333333333333333333333333333333333333333333
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I have been facing High CPU Utilization issue with few of my Cisco 4006 Switches together from last one month. Out of which 1 switch issue sorted out auto after 2 days however the problem is still exists with rest 3 switches.They are 6-7 year old and having one SUP engine and other are switch port modules.
View 5 Replies View RelatedI am experiencing high cpu utilization in my 4000 series core switch.
I checked the loggs. i saw some strange loggs.
Please see the below logs:
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What is the "invalidsourceaddresspacket" ?
Is this is due to some virus attack or something?? Also one more thing this switch is the Active router in HSRP.
i am seeing very high utilization on a random basis on the stack. and the logs indicate me that there is a pattern where there is a stack power cable shows inserted (which was never unplugged) followed by sudden spike in the utilization.
001018: *Mar 6 16:21:22.138: %PLATFORM_STACKPOWER-6-CABLE_EVENT: Switch 4 stack power cable 1 inserted
001019: *Mar 6 18:18:37.982: %SYS-1-CPURISINGTHRESHOLD: Threshold: Total CPU
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We had a core switch(30 vlans) in our environment and it's noticed that CPU utilization of the core switch is showing high during recent days. I have checked logs and processes, but couldn't find the root cause. The issue found only in the office hourly only(after that the cpu utilization is idle and normal). I have already referred the following link to troubleshoot the issue " [URL]
see the following outputs from the core switch
CPU utilization for five seconds: 99%/0%; one minute: 99%; five minutes: 99%
PID Runtime(ms) Invoked uSecs 5Sec 1Min 5Min TTY Process
30 6687557041432420936 466 47.52% 47.10% 45.98% 0 Cat4k Mgmt LoPri
55 30667074884269560256 0 45.36% 45.50% 45.85% 0 IP Input
29 28552856922870089254 0 3.59% 3.50% 3.57% 0 Cat4k Mgmt HiPri
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Note: Each Invalid source mac entry in each day from same port (above is the output after clearing logs before 3 days)
My queries regarding the issues are following
1) How can we find root cause regarding the high cpu utilization?
2) Is a single invalid mac address makes the cpu highly utilized for suppressing it?
We have a problem of igh CPU Utilization in Cisco 4510R-with dual SUP V-10G modules.
Cisco 4510R switch is the CORE switch and have 30 no's of VLans. It was running PVST/PVST+ previously. But Now we have migrated to MST. But after upgradation the CPU utilization reached alomst 98%.
We have Cisco ME3400 switch, with configuration described below.
GE0/1 port is uplink:
interface GigabitEthernet0/1
description ***MATED-IUB_C&U-Plan***
port-type nni
switchport trunk allowed vlan 331,450,4085
switchport mode trunk
GEo/2 is configured as below:
interface GigabitEthernet0/2
description ***From NIB***
port-type nni
switchport access vlan 4085
[URL]
We have also tried Loopguard feature enabled on all ports: but after some period same problem is repeated.
version information is below:
Cisco IOS Software, ME340x Software (ME340x-METROIPACCESSK9-M), Version 12.2(25)SEG3, RELEASE SOFTWARE (fc2)
Copyright (c) 1986-2007 by Cisco Systems, Inc.
Compiled Wed 25-Jul-07 22:56 by amvarma
In my network we use all cisco 2960 switches, problem is when someone copying 4gb data or high from one switch to another switch, by that time rto (Request time out) is coming.
router
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1. when user 1 copy data from server ,at that time who is in switch2 behind like user2 ,he is getting problem like when ping to default-gateway,or rto is coming and network is very slow .
2. when i open sw2,sw1,sw3,trunk ports utilization is very high except sw4 to sw1 trunk ports,who behind sw4 like user4 ,he is not getting problem.
3.all switches trunkport in my network is faster ethernet and i have no option to connect trunkport to gigaehternet and ethernet channel.
I upgraded the newest IOS 15.0(1)SE for our SW C2960-24-TT-L, the process was succeseful. However, we found SW memory utilization raised to 82% this morning in normal situation. (Momery: Total 21341260, Used17471692) Did you guys meet the same problem after upgrading to 15.0(1)SE? I also would like to know what the normal memory utilization is? and what is the impact of memory utilization highly?
View 8 Replies View RelatedI upgrade the IOS of my switch 3560 from C3560-IPBASE-M), Version 12.2(25)SEB4, To C3560-IPBASEK9-M), Version 12.2(55)SE5 after that the utilizatio of the memory increase to 80% I attached the output of show memory statistics history
View 5 Replies View RelatedOur switch is very high cpu in process arp
Am debug ip arp track command the result as below
-- on this switch have interface vlan 201 ip subnet is 10.11.201.1/24
Jun 5 15:30:40.732 GMT+7: IP ARP: rcvd req src 10.11.201.217 0001.6c6b.8ab9, dst 172.27.116.73 Vlan201
Jun 5 15:30:42.150 GMT+7: IP ARP: rcvd rep src 10.11.201.217 0001.6c6b.8ab9, dst 172.27.116.4 Vlan201
Jun 5 15:30:42.150 GMT+7: IPARP_TRACK: ARP tableid(0) 10.11.201.217 Vlan201 mode(1) modified.
Jun 5 15:30:42.150 GMT+7: IP ARP: rcvd req src 10.11.201.217 0001.6c6b.8ab9, dst 172.27.116
and then am try to shutdown vlan database 201 after that the cpu process has to normal state.
How to check the root cacus?
I'm facing high CPU utilization issue due to a ssh process on 3750 switch. What is the use of SSH proces in the switch? Can I disable it for troubleshooting?
will there be any impact if I disable it?
#sh processes cpu sorted 5min
CPU utilization for five seconds: 99%/0%; one minute: 66%; five minutes: 46%
PID Runtime(ms) Invoked uSecs 5Sec 1Min 5Min TTY Process
159 1896078 589986 3213 3.96% 10.76% 14.00% 0 Hulc LED Process
165 32871 591 55619 77.42% 33.40% 8.85% 3 SSH Process
We are having 3750 Stack switch as our edge switch. Here we are having some issues as low memory & itermediate High CPU utilization.For memory when we checked its shwoing maximum memory is allocated to DHCPD receive & ARP Input as follows
Processor Pool Total: 70829380 Used: 56809532 Free: 14019848
I/O Pool Total: 12582912 Used: 8554920 Free: 4027992
Driver te Pool Total: 1048576 Used: 40 Free: 1048536
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i want to understand why this 2 proceses (DHCPD & ARP input) taking more memory?High CPU: We also facing intermediate high CPU utilization (above 95%). When CPU is high there were 2 processes consuming more CPU are 'Spanning Tree' (about 20%) & ARP Input (about 66%). we also checked the ARP entries, there were 1500 ARP entries & 2 incomplete ARP (out of 6000 ARP supported)
We have a Cisco 3845 router configured as a voice gateway with multi SIP trunks. But when it reachs 200 calls traffic, the CPU increase to 60-70% and caused by CCSIP_SPI_CONTROL process.
CPU utilization for five seconds: 46%/30%; one minute: 54%; five minutes: 58%
PID Runtime(ms) Invoked uSecs 5Sec 1Min 5Min TTY Process
377 400729448 171017979 2343 6.31% 10.71% 12.44% 0 CCSIP_SPI_CONTRO
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We are facing high CPU Utilization on Cisco 3750X-48P-L without any traffic on it. find the attached log files for 2 separate 3750's stack, we have upgraded the IOS of SW2 from "c3750e-universalk9-mz.122-55.SE3.bin" to "c3750e-universalk9-mz.122-55.SE4.bin" but still we found the same issue with CPU utilization.
View 4 Replies View RelatedFrom couple of weeks we have observed the cpu utilization of cisco 6509 with SUP 720 is high. During daytime from 9:00 to 21:00 it keeps increasing & reaches 98% & after 21:00 becomes normal.
View 5 Replies View RelatedCpu always hitting 70% to 80 % and interrrupt traffic is 70%. Want to know the root cause for this issue.
CPU utilization for five seconds: 73%/65%; one minute: 71%; five minutes: 67%
PID Runtime(ms) Invoked uSecs 5Sec 1Min 5Min TTY Process
1 8 59 135 0.00% 0.00% 0.00% 0 Chunk Manager
2 58864 3290773 17 0.00% 0.00% 0.00% 0 Load Meter
3 1784 238001 7 0.07% 0.01% 0.00% 2 Virtual Exec
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I have a 2 cisco core (cisco WS-C6509-E (R7000) processor) and been working for quite sometime.they are conneted with HSRP with active standby config with a 10 g module for redundancy just today I see that the cpu utilization went to about 50% and its the same on both cores.
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We have seen high CPU utilization on some Cisco switches of type 2960S. Also we got info, that applications are running with poor performance or with interruption.Following IOS is loaded: C2960s-universalk9-mz.122.55.SE
View 9 Replies View RelatedI am seeing a strange situation on my 6500 switch?By having snmp walk on '1.3.6.1.4.1.9.9.109.1.1.1.1.3' (== cpmCPUTotal5sec), I came to know that there are two processor and the cpu util for switching processor is gone to 88 % and some time creeps to 99 %.
snmpwalk -v2c -c "removes" sw6500 '1.3.6.1.4.1.9.9.109.1.1.1.1.3'
SNMPv2-SMI::enterprises.9.9.109.1.1.1.1.3.1 = Gauge32: 12 (--- this is for CPU of Router Processor )
SNMPv2-SMI::enterprises.9.9.109.1.1.1.1.3.3 = Gauge32: 99 (--- this is for CPU of Switching Processor )
but when I do sh process cpu on the console, all looks normal as it shows cpu utilization of RP. why the value is so high on the switching processor ?
We have cisco 4510R+E switch with IOS-XE Software Version 03.01.01.SG RELEASE SOFTWARE (fc1).Our this switch is having two core & one core is always going to about 90% to 98% cpu utilization while other core is showing normal (about 5% to 10%),we check with-This switch is gateway of our LAN.
View 6 Replies View RelatedI am experiencing high cpu utilization in my 29501 switch. see the copied sh process cpu output.
CPU utilization for five seconds: 99%/95%; one minute: 89%; five minutes: 37%
PID Runtime(ms) Invoked uSecs 5Sec 1Min 5Min TTY Process
1 0 2 0 0.00% 0.00% 0.00% 0 Chunk Manager
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I am running a 1712 12.4(25d) with NAT, VPN and FW/IDS. I have a broadband ethernet connection at 20mb. As I run some traffic through it, the processor jumps up to near 100% and throughput comes to a screeching halt. IP CEF is turned on and makes no difference when it is turned off or on.
View 3 Replies View RelatedI am looking at the utilization on a Catalyst 3560-E. I am running a test with eight 1 GIGE links RXing at 95 % utilization. All of the traffic is going to a TenGigE port. The device on the TenGigE port is echoing back all of the traffic received, so the 1 GIG links are TXing at 95% as well.When I do a "show controllers utilization", the port utilization numbers are correct, but the fabric utilization is higher than I would expect. The fabric should be 128 gigbits / second in this switch, and there is 7.6 gigabits TX/RX to the ten gig port. The fabric utilization is at 49%. I would expect 7.6 / 128 = 5.9% or possible double that. [code]
View 8 Replies View RelatedCisco 6509 modular IOS getting high cpu in interrupt but the switch process switching is still less. Any sugeestion what could be the problem?
Process sbin/ios-base, type IOS, PID = 16407CPU utilization for five seconds: 12%/81%;
Sometimes cpu goes upto 100%
Version - s72033-ipservicesk9_wan-vz.122-33.SXH5
we have 2811 router with multiple servers connected to it's lan from which there are monitoring servers in between , the router suffers always from high cpu utilization
configuration has alot of ACLs & NAT & IPSEC Tunnel with wan bandwidth 20 M? Is there any method to reduce the high CPU utilization shown below !!
CPU utilization for five seconds: 90%/80%; one minute: 93%; five minutes: 90%
PID Runtime(ms) Invoked uSecs 5Sec 1Min 5Min TTY Process
104 737029848 427864243 1722 5.45% 5.65% 5.65% 0 IP Input
253 63392216 11081854 5720 1.04% 1.15% 1.12% 0 IP NAT Ager
260 82602372 137425723 601 0.64% 0.64% 0.66% 0 PDU DISPATCHER
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We have a Switch Catalyst 4500, model WS-C4510R+E, with 2 Supervisors, models V-10GE, which is showing high CPU values all times.When this occures, the switch shows 95-100% for total cpu for a few hours at a time.show proccesses cpu shows process Cat4k Mgmt LoPri with an unusual cpu value of 56% The show platform heath command gave me a high reading for K2L2 Address Table R which is curently 9,45% but the last hour is around a 20% average CPU ?[URL] what the process K2L2 Address Table R means and what could be the cause of this peak?
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