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)
