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cisco router high cpu usage

Hello, friends.

There are Cisco (C2801-ADVENTERPRISEK9_IVS-M), Version 15.1 (4) M7.

Telephones connected to SCCP. There is one trunk with a SIP-provider. 

about two weeks there were no problems. Since yesterday in error logs:

Jun 25 17:31:07.019: %IVR-3-LOW_CPU_RESOURCE: IVR: System experiencing high cpu utilization (97/100).
     Call (callID=190) is rejected.

Jun 25 17:31:11.799: %IVR-3-LOW_CPU_RESOURCE: IVR: System experiencing high cpu utilization (97/100).
     Call (callID=191) is rejected.

Jun 25 17:31:28.443: %IVR-3-LOW_CPU_RESOURCE: IVR: System experiencing high cpu utilization (97/100).
     Call (callID=192) is rejected.

Jun 25 17:33:16.403: %IVR-3-LOW_CPU_RESOURCE: IVR: System experiencing high cpu utilization (97/100).
     Call (callID=195) is rejected.

Jun 25 17:34:12.059: %IVR-3-LOW_CPU_RESOURCE: IVR: System experiencing high cpu utilization (97/100).
     Call (callID=197) is rejected.

Jun 25 17:35:53.335: %IVR-3-LOW_CPU_RESOURCE: IVR: System experiencing high cpu utilization (97/100).
     Call (callID=198) is rejected.

DC(config)#      do show proc cpu sort
CPU utilization for five seconds: 98%/54%; one minute: 94%; five minutes: 96%
 PID Runtime(ms)     Invoked      uSecs   5Sec   1Min   5Min TTY Process
 127     4265972      410671      10387 31.06% 28.33% 26.47%   0 IP Input
   7     1073688      374129       2869  6.96%  6.33%  5.85%   0 Pool Manager
  84      122676       17048       7195  2.56%  0.79%  0.72%   0 Skinny Msg Serve
 383       89324       17955       4974  0.95%  0.69%  0.66%   0 IP NAT Ager
  64        8928         273      32703  0.79%  0.09%  0.06%   0 Per-minute Jobs
 287       16476        5739       2870  0.31%  0.08%  0.07%   0 Crypto PAS Proc
 103       88684      349633        253  0.31%  0.42%  0.37%   0 Ethernet Msec Ti
 173       12576        5995       2097  0.31%  0.09%  0.07%   0 TCP Timer
 172        3588         110      32618  0.31%  0.03%  0.00%   0 Licensing Auto U
 318       23992        3777       6352  0.23%  0.10%  0.05% 194 SSH Process

how to diagnose where the problem?

On the external interface acl:

Extended IP access list FW-OUT
    10 permit icmp any any (1279 matches)
    20 permit tcp any host 92.63.108.115 eq 22 (1599 matches)
    30 permit gre host 217.197.126.52 host 92.63.108.115
    40 permit esp host 217.197.126.52 host 92.63.108.115 (3616549 matches)
    50 permit udp host 217.197.126.52 host 92.63.108.115 eq isakmp (3 matches)
    60 permit esp any host 92.63.108.115 (1505 matches)
    70 permit udp any host 92.63.108.115 eq isakmp (26 matches)
    80 permit udp any host 92.63.108.115 eq non500-isakmp (28062 matches)
    90 permit tcp any host 92.63.108.115 eq www
    100 permit tcp any host 92.63.108.115 eq ftp ftp-data
    110 permit gre host 46.165.197.108 host 92.63.108.115 (39348 matches)
    120 permit tcp any host 92.63.108.115 eq 1723
    130 permit gre any host 92.63.108.115
    140 permit ip host 217.150.198.44 host 92.63.108.115
    150 permit ip host 178.63.96.3 host 92.63.108.115
    160 permit ip host 78.46.95.118 host 92.63.108.115
    170 permit ip host 176.9.145.115 host 92.63.108.115 (79 matches)
    180 permit ip host 176.9.85.133 host 92.63.108.115
    190 permit ip host 5.9.108.25 host 92.63.108.115
    200 permit ip host 89.249.23.194 host 92.63.108.115 (156 matches)
    210 permit ip host 46.4.53.86 host 92.63.108.115
    220 permit ip host 5.9.84.165 host 92.63.108.115
    230 permit ip host 144.76.42.108 host 92.63.108.115 (141 matches)
    240 permit ip host 178.16.26.122 host 92.63.108.115
    250 permit ip host 178.16.26.124 host 92.63.108.115
    260 permit ip host 178.63.96.28 host 92.63.108.115
    350 deny ip any any (805 matches)

 

 

 

2 REPLIES
Green

Hi,1) looking at the error

Hi,

1) looking at the error message decoder
The alarm generates the following output:-

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

Related documents- No specific documents apply to this error message.


2) Have a read at this link re High CPU - IP INPUT
 
http://www.cisco.com/c/en/us/support/docs/routers/7500-series-routers/41160-highcpu-ip-input.html

 

Regards
Alex

Regards, Alex. Please rate useful posts.
Silver

In addition to Alex answer -

In addition to Alex answer - please don't put ACL like this in posts (i mean in this "open format")...just a proposal wink

BR,

Dragan

HTH, Dragan
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