Cisco Switching/Routing :: 6500 / High Switching Processor Utilization?
Sep 20, 2012
I 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 ?
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May 22, 2012
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.
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Apr 3, 2012
We are running a stack of 2 WS-C3750X-24S-E's with IOS version 12.2(58)SE2 and we are seeing continuous high processor utilization involving the hl3mm process. The stack is configured for PIM Sparse mode, with 2 upstream Nexus 5596'es acting as both RP candidates and as BSRs. The hl3mm process generally runs at about 19% but can spike up into the 60% range.Symptoms on the 3750X are spiking latency and sluggish CLI perfformance. I thought at first that we might be running into SDM limits, but the "show platform tcam utilization" show that we are far under the limits of the default SDM template. Performing the "show ip pim (vrf name) bsr-router" command freezes the system and takes 20-30 seconds to return results. Similiarly configured WS-C3750G-12S running 12.2(55)SE3 does not exhibit these same issues.
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Apr 18, 2012
we are using Cisco 6509-E VSS mode [12.2(33)SXI] ipbase image and facing high cpu utilization. In show process cpu output it is showing some "ios-base" process consuming cpu. I attached show cpu output
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Nov 16, 2011
I am a little stuck trying to troubleshoot unusually high cpu on 7600 Platform.This has been going on for many hours and not been causing a problem, but this doesn't seem replicated in our network and I am concerned about the cause.I have attached some output below, and disabled netflow on interfaces to free some switching CPU. How to track the cause of this? We only have routing protocols and 5 static routes to Null 0, so I cant see how this can be a route loop, but willing to stand corrected. Routes are learned from BGP with OSPF/MPLS internally on the network. This switch also connects to access switches on RIP and EIGRP.
No change has been made to this device when this problem started to occur so I am suspecting something about the traffic has changed or there is a rougue user? [code]
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Apr 22, 2011
My client using 3845 as a core router . 200 number of branch are connected through 6 ISP.Some of days average process shows 90 % . Max time 50 %.In the morning when Branch location are off then time also high utilization.High utilization is not continue after intervals of time or periodic time its goes to high.
have any solution for that ?. before once 3845 is crash for that. another is ready for replacee.We test another device like core switches for observation CPU rate.
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Mar 28, 2013
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
[Code].....
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Jan 31, 2012
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.
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Apr 24, 2013
I'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
[Code].....
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May 20, 2012
From 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.
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Mar 19, 2013
Cpu 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
[code]....
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Jan 13, 2013
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.
[Code] .......
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May 3, 2012
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".
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Feb 8, 2011
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
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Oct 19, 2012
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 .
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Dec 13, 2011
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.
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Dec 9, 2011
I 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
[Code].....
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Feb 16, 2012
I 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
[Code]......
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Nov 2, 2010
I 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]
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Jan 29, 2011
Cisco 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
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Feb 23, 2013
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
[code]....
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Feb 6, 2013
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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Jan 2, 2013
getting CPU utilization around 62%
CPU utilization for five seconds: 54%/6%; one minute: 61%; five minutes: 61%
PID Runtime(ms) Invoked uSecs 5Sec 1Min 5Min TTY Process
35 82081 9642 8512 0.31% 0.21% 0.18% 0 Compute load avg
[Code]....
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Sep 6, 2012
I 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.
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Sep 5, 2012
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.
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Oct 9, 2012
We have just purchased Cisco 3750X 24 S switches (QTY 2), last week we put them in prodcution in simple Layer 2 mode. No Core, just act as Access switch in order to only check the performace and availibility of switches.
But strange thing I have noticed the highest cpu utilization, cpu sits on 13 to 14% and from historical logs it hit above 60%. I am confused what is happening. Remember to terminate copper connection we have inserted Copper SFP Modules on both switches.
Both switches connected on Layer 2 mode via trunk, in LAN environment we have here 7 3Com 2824 Management switches which are terminated on Copper SFP modules at Cisco 3750X 24 S. All 3Comm Switches uplink are terminated on Cisco 3750 Switch 1, another switch is idle. Whole setup is running on VLAN1 .
Also refer no port in TCP and UDP packets in show ip traffic. any abnormal condition you predict..basically, In near days we plan to make these switches as Core layer and run intervlan routing, HSRP/VRRP and OSPF. But in this cpu usage how we can go ahead until this resolved..
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Sep 25, 2012
We've got Cisco 2821 for our 90mb/s Internet Access. Its CPU usage is around 80%. Show process cpu does not show any cpu proccess with high utilization. But we have got plenty of policing configured for our clients using policy maps. Can this policing affect cpu usage?
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Dec 6, 2011
I've noticed that my 6509's running VSS seem to have high I/O memory utilization.
I/O memory: Sw/Mod Bytes: Total Used %Used
1/1 8126344 7886544 97%
1/2 11796240 11442472 97%
1/5 RP 12058384 10715832 89%
1/5 SP 8388608 8104304 97%
1/7 8126344 7886544 97%
[code]....
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May 2, 2013
I noticed on the 2960 switches we have deployed that are running the latest IOS, 12.2(58)SE2, memory utilization is really high (almost 80 percent). I have not noticed any side effects but I wanted to verify this is acceptable. My question is does the high memory utilization matter? I see this may be related to bug CSCtw83946 but no resolution is mentioned.
I did some testing various IOS revisions and below is what I have found using a WS-C2960-48TC-L with default configuration and only my laptop connected to a switchport in vlan1. You will notice memory utilization will grows with each version but jumps drastically with 58. One difference with 58 I needed to use a different command to retrieve memory utilization. The output was gathered by pasting the output of the show command into the Cisco Output Interpreter on their website.
IOS
Show Command
Output
c2960-lanbasek9-mz.122-35.SE5.bin
show memory
[Code]....
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Jan 23, 2010
I have a Head Quarter and a remote site running over a OC3 circuit. [code]
On the HQ, I have a Cisco VXR7204 running IOS 12.4.15T(10) Advanced IP Serviceand the remote site is a Cisco 2851 also running IOS 12.4.15T(10) Advanced Ip Service. The HQ has a Riverbed Steelhead 5050H capable of delivering 100MbpsWCCP throughput. The remote site has a Riverbed Steelhead 1050H which can deliver 10Mbps WCCP throughput. At the HQ, the LAN network is 192.168.251.0/24.The Steelhead residing on the 192.168.251.0 network.At the remote site, the LAN network is 192.168.103.0/24 and 192.168.211.0/24.The Riverbed resides on the 192.168.103.0/24 network.
When a host on network 192.168.211.0/24 download a file from network192.168.251.0/24 network via http, the CPU on the Cisco 2851 goes to 99% utilization and that it stays there for the duration of the http session. There is very little traffic goes across the WAN whichis the way it should be but the CPU on the 2851 stays at constant at99% CPU utilization.
Why would WCCP consume so much CPU on the Cisco 2851? By the way, I am only getting about 5Mbps download instead of 90Mbps download, I think because of the high CPU on the router?
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Dec 20, 2011
I 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:
Code...
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.
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Nov 9, 2012
I am facing high memory utilization in Cisco 2960 switch having IOS version 12.2(55)SE3.
The error we are getting is:
A "LiveHealthAlarm" event has occurred, from SwCiscoIOS device, named Switch2960. eHealth Alarm Start Time - Fri 09 Nov,2012 - 03:02:48 eHealth. Switch2960-RH-MemoryPool-Processor-Processor-1.Memory utilization high-Threshold set at 70%SPECTRUM ALARM ID|22233284 I have attached the logs also.
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Feb 25, 2013
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
[Code]......
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