%IVR-3-LOW_CPU_RESOURCE - IVR: System experiencing high cpu utilization (99

rodrigofreitas · ‎12-17-2008

Hi,

I have a VoIP Gateway and I can see this message in the log.

=================================

Error Message

Dec 17 2008 00:00:03

IVR

3

LOW_CPU_RESOURCE

IVR: System experiencing high cpu utilization (99/100).

=================================

From Cisco.com

http://www.cisco.com/en/US/docs/ios/12_3/sem1/system/messages/emgisdn.html#wp138298

%IVR-3-LOW_CPU_RESOURCE : IVR: System experiencing high cpu utilization ([dec]/100). Call (callID=[dec]) is rejected.\n

Explanation: The system does not have enough CPU resources available to accept a new call.

Recommended Action: Ensure that the call setup rate is within the supported capacity of this gateway.

=================================

show version

Cisco IOS Software, 3700 Software (C3725-IPVOICE-M), Version 12.3(11)T3, RELEASE SOFTWARE (fc4)

Technical Support: http://www.cisco.com/techsupport

Compiled Wed 26-Jan-05 12:19 by pwade

ROM: System Bootstrap, Version 12.2(8r)T2, RELEASE SOFTWARE (fc1)

pre_rt01 uptime is 3 hours, 59 minutes

System returned to ROM by power-on

System restarted at 12:07:58 BR-3 Wed Dec 17 2008

System image file is "flash:c3725-ipvoice-mz.123-11.T3.bin"

Cisco 3725 (R7000) processor (revision 0.1) with 246784K/15360K bytes of memory.

Processor board ID JMX0825L548

R7000 CPU at 240MHz, Implementation 39, Rev 3.3, 256KB L2 Cache

2 FastEthernet interfaces

2 Channelized E1/PRI ports

DRAM configuration is 64 bits wide with parity disabled.

55K bytes of NVRAM.

31744K bytes of ATA System CompactFlash (Read/Write)

Configuration register is 0x101

================

show processes cpu history

rt01 04:08:03 PM Wednesday Dec 17 2008 BR-3

9999999999999999999999999999999999999999999999999999999999

100 ***************************************

90 ***************************************

80 ***************************************

70 ***************************************

60 ***************************************

50 ***************************************

40 ***************************************

30 ***************************************

20 ***************************************

10 ***************************************

0....5....1....1....2....2....3....3....4....4....5....5....

0 5 0 5 0 5 0 5 0 5

CPU% per second (last 60 seconds)

1 1 111 1 111 1 1111 1 1 1

9990999990999999000990990009999990990000990990999909991

9990999990999999000990990009999990990000990990999909990888

100 #####################################################*

90 #####################################################*

80 #####################################################*

70 #####################################################*

60 #####################################################*

50 #####################################################*

40 ######################################################

30 ######################################################

20 ######################################################

10 ############################################################

0....5....1....1....2....2....3....3....4....4....5....5....

0 5 0 5 0 5 0 5 0 5

CPU% per minute (last 60 minutes)

* = maximum CPU% # = average CPU%

338

702

100

90

80 *

70 *

60 *

50 *

40 * *

30 ***

20 ***

10 ###

0....5....1....1....2....2....3....3....4....4....5....5....6....6....7.

0 5 0 5 0 5 0 5 0 5 0 5 0

CPU% per hour (last 72 hours)

* = maximum CPU% # = average CPU%

=================================

There is correction for this error?

Can I put more memory?

I need update the IOS?

How is the better IOS?

Please, someone help me.

Thanks,

Rodrigo

Nicholas Matthews · ‎12-17-2008

Hi Rodrigo,

This could be normal depending upon how many active calls you have going through the system. If you're running 400+ calls this may just be a lack of resources. If this is the case something like a AS5400XM or VGD-1T3 may be a better box. If you're not quite that high for CPU utilization, you could probably use a 3845.

If this is a lower volume call situation where the CPU utilization just spikes ( and I can't tell if there is a call influx here or not) without more calls, it is probably a bug. If the amount of calls is linear to the CPU utilization it will be a resource problem more than likely.

'show call active voice brief' vs 'show proc cpu hist' will give you a good idea.

It could very well be a bug.

You could try upgrading to something like 12.4(13f) which is considered to be a pretty good mainline image.

Otherwise, you could try 12.4(15)T8 which is considered one of the more stable T train images.

rodrigofreitas · ‎12-18-2008

Hi, Nick

Thank you for answer.

I think I have a big problem, because my Router have 32MB from flash.

The two IOS's that you said me will need 64MB from flash.

I saw the commands that you said me, but I don't know the first command 'show call active vouce brief'. I know the sh proc cpu his.

Can you help me to interpret this command (show call act voice bri)?

Is attached the commands, after 5 minutes reload.

Thanks,

Rodrigo

Nicholas Matthews · ‎12-18-2008

Hi Rodrigo,

These commands don't offer any information because you don't have high CPU when you entered them.

-nick

rodrigofreitas · ‎01-13-2009

Hi, Nick

How are you?

I didn't send a message to you because I was waiting see the Log's.

Today I get the Log's and They are attached.

Please, Can you see?

Thank you,

Rodrigo

Nicholas Matthews · ‎01-13-2009

Hi Rodrigo,

It's hard to tell. You've got 40% utilization by interrupts, and nearly 55% of IP Input:

58.97% 57.76% 55.48% 0 IP Input

This could just be a packets per second issue. This more of an architecture issue at this point, rather than dealing with any voip issues, from these outputs.

If you are worried about this, I would put a TAC case in to the architecture team with that output.

There's a pretty good chance that this is normal, and it's pure IP packets causing the CPU utilization, but I can't say with certainty that this is 100% expected either.

hth,

nick

Alcides Miguel · ‎05-21-2014

Hi Nicholas,

How can I solve this problem 'cause I'm facing the same issue with with a cisco 2911.

Cisco IOS Software, C2900 Software (C2900-UNIVERSALK9-M), Version 15.0(1)M5, RELEASE SOFTWARE (fc2)
Technical Support: http://www.cisco.com/techsupport
Copyright (c) 1986-2011 by Cisco Systems, Inc.
Compiled Wed 23-Feb-11 15:41 by prod_rel_team

ROM: System Bootstrap, Version 15.0(1r)M9, RELEASE SOFTWARE (fc1)

0519-WRT-01 uptime is 19 hours, 59 minutes
System returned to ROM by reload at 15:06:46 UTC Tue May 20 2014
System restarted at 15:08:03 UTC Tue May 20 2014
System image file is "flash0:c2900-universalk9-mz.SPA.150-1.M5.bin"
Last reload type: Normal Reload
Last reload reason: Reload Command

This product contains cryptographic features and is subject to United
States and local country laws governing import, export, transfer and
use. Delivery of Cisco cryptographic products does not imply
third-party authority to import, export, distribute or use encryption.
Importers, exporters, distributors and users are responsible for
compliance with U.S. and local country laws. By using this product you
agree to comply with applicable laws and regulations. If you are unable
to comply with U.S. and local laws, return this product immediately.

A summary of U.S. laws governing Cisco cryptographic products may be found at:
http://www.cisco.com/wwl/export/crypto/tool/stqrg.html

If you require further assistance please contact us by sending email to
export@cisco.com.

Cisco CISCO2911/K9 (revision 1.0) with 475136K/49152K bytes of memory.
Processor board ID FTX1524AJFR
3 Gigabit Ethernet interfaces
1 terminal line
1 Virtual Private Network (VPN) Module
2 Voice FXO interfaces
2 Voice FXS interfaces
1 Services Module (SM) with Services Ready Engine (SRE)
Cisco Wide Area Application Services Software 5.2.1 (b34 Apr 25 2013 11:38:47) in slot 1
DRAM configuration is 64 bits wide with parity enabled.
255K bytes of non-volatile configuration memory.
255744K bytes of ATA System CompactFlash 0 (Read/Write)

0519-WRT-01#sh proc cpu hist

0519-WRT-01 11:01:41 AM Wednesday May 21 2014 UTC

999999999999999999999999999999999999999999999999999999999999
999999999999999999999999999999999999999999999999999999999999
100 ************************************************************
90 ************************************************************
80 ************************************************************
70 ************************************************************
60 ************************************************************
50 ************************************************************
40 ************************************************************
30 ************************************************************
20 ************************************************************
10 ************************************************************
0....5....1....1....2....2....3....3....4....4....5....5....6
0 5 0 5 0 5 0 5 0 5 0
CPU% per second (last 60 seconds)

111111111111 1 11 11 1 1
999000000000000990999999999999900999999009999099999999909999
999000000000000990999999999999900999999009999099999999909999
100 ############################################################
90 ############################################################
80 ############################################################
70 ############################################################
60 ############################################################
50 ############################################################
40 ############################################################
30 ############################################################
20 ############################################################
10 ############################################################
0....5....1....1....2....2....3....3....4....4....5....5....6
0 5 0 5 0 5 0 5 0 5 0
CPU% per minute (last 60 minutes)
* = maximum CPU% # = average CPU%

May 21 08:53:58.188: %IVR-3-LOW_CPU_RESOURCE: IVR: System experiencing high cpu utilization (99/100).
Call (callID=40) is rejected.

.May 21 09:04:10.232: %IVR-3-LOW_CPU_RESOURCE: IVR: System experiencing high cpu utilization (99/100).
Call (callID=41) is rejected.

.May 21 09:04:18.272: %IVR-3-LOW_CPU_RESOURCE: IVR: System experiencing high cpu utilization (99/100).
Call (callID=42) is rejected.

I hope someone can help me because with use a lot telephony for every work.

Best regards,

Alcides

bokhariz1 · ‎02-14-2017

Hi Nicholas,

Need your help as it happen to me as well. So what need to identify which PID causing the high utilization? The best part it happen during our office hour and it will normalize back after it. Plus this router also hub for the VoIP for our office in the region.

The information as per attached. Hope any one can give me some input to dig in detail for this issue.

Best Regards,

Bokhari