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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Cisco Switching/Routing :: WS-C3750X-24S / Continuous High Processor Utilization Involving Hl3mm Process

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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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.

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[Code].....

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Cisco Switching/Routing :: High CPU Utilization On 3750 - PID 296?

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.
 
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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. 
 
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PID Runtime(ms)   Invoked      uSecs   5Sec   1Min   5Min TTY Process
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[code]....

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[Code] .......

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Feb 8, 2011

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Oct 19, 2012

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I am experiencing high cpu utilization in my 29501 switch. see the copied sh process cpu output.
 
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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.
 
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here is the utilization after Peak hours:
4444333334444433333333333333333333333333333333333333333333

[Code]......

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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?
 
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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 !!
 
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[code]....

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Cisco Switching/Routing :: High CPU Utilization On IOS For Catalyst 4500?

Feb 6, 2013

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Cisco Switching/Routing :: High CPU Utilization In 3560G-24TS

Jan 2, 2013

getting CPU utilization around 62% 
 
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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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Cisco Switching/Routing :: High CPU Utilization On 4006 Switch CAT OS?

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.
 
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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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Cisco Switching/Routing :: 6509 High Memory Utilization?

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%
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             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]

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Dec 20, 2011

I am experiencing high cpu utilization in my 4000 series core switch.
 
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Please see the below logs:

Code...

What is the "invalidsourceaddresspacket" ?
 
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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

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001018: *Mar  6 16:21:22.138: %PLATFORM_STACKPOWER-6-CABLE_EVENT: Switch 4 stack power cable 1 inserted
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[Code]......

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