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AS5400 - High CPU Processes

Dear Support, I work for a VoiP company which primarily uses Cisco VOIP routers (AS5300/AS5400 series) for TDM and VOIP trunks (H323/SIP). We are using SIP in between our internal routers and we have noticed a huge spike in CPU Interrupts when using SIP instead of H.323. We've hit 90% CPU load and calls are being rejected due to this huge strain. As far as I can tell the reason is the complexity of the INVITE messages but what I did notice is that when using SIP, CCSIP_SPI_CONTRO process goes up from 10% to 60% during peak hours. Attached logs: CPU utilization for five seconds: 99%/51%; one minute: 95%; five minutes: 93% PID Runtime(ms) Invoked uSecs 5Sec 1Min 5Min TTY Process 159 1163712 188169 6184 13.38% 15.29% 15.80% 0 CCSIP_SPI_CONTRO 149 307576 433994 708 5.25% 4.19% 4.29% 0 VTSP 141 450324 159808 2817 4.92% 5.96% 6.21% 0 ISDN 161 308888 186794 1653 3.20% 4.12% 3.98% 0 CCSIP_UDP_SOCKET 148 191144 236518 808 3.12% 2.61% 2.64% 0 DSMP 110 271084 168743 1606 2.03% 3.99% 4.13% 0 AFW_application_ 75 224548 133744 1678 2.79% 2.57% 2.90% 0 AFW_application_ 70 232856 286785 811 2.62% 2.45% 2.46% 0 IP Input 153 179116 253231 707 2.13% 2.21% 2.31% 0 VOIP_RTCP 179 143352 268057 534 1.72% 1.90% 1.92% 0 ISDN L2 Process 146 70108 156677 447 1.14% 0.87% 0.93% 0 Resource Monitor 135 6856 2231 3073 0.90% 0.15% 0.06% 3 Virtual Exec 150 44368 117701 376 0.90% 0.55% 0.59% 0 TSP 65 35564 100431 354 0.57% 0.46% 0.46% 0 Call Progress No 137 45612 949 48063 0.49% 0.64% 0.65% 0 Compute load avg 147 35408 62754 564 0.41% 0.49% 0.46% 0 CC-API_VCM 4 24436 29575 826 0.32% 0.31% 0.33% 0 EDDRI_MAIN 181 62788 242982 258 0.32% 0.78% 0.80% 0 ISDN L2D SRQ Pro 51 26356 278894 94 0.32% 0.43% 0.36% 0 Call Management 157 9544 7358 1297 0.24% 0.13% 0.11% 0 CCH323_CT 183 8456 344121 24 0.24% 0.11% 0.10% 0 ss7_mtp2_timerba 86 6812 74207 91 0.16% 0.11% 0.09% 0 ss7_mtp2 140 20852 452818 46 0.16% 0.22% 0.24% 0 IP SLA Mon Event 164 18120 98021 184 0.16% 0.22% 0.24% 0 EST msg processi 92 2752 7259 379 0.08% 0.02% 0.01% 0 CEF process 48 42896 32771 1308 0.08% 0.89% 0.51% 0 AFW_application_ 128 10876 34212 317 0.08% 0.12% 0.13% 0 AAA SEND STOP EV 167 4808 97918 49 0.08% 0.05% 0.05% 0 RLM Port Process 58 5948 18028 329 0.08% 0.05% 0.05% 0 Framer backgroun 72 2356 716 3290 0.08% 0.02% 0.00% 0 CDP Protocol 30 3656 7183 508 0.00% 0.04% 0.05% 0 Net Background 29 0 1 0 0.00% 0.00% 0.00% 0 Critical Bkgnd Can you guys help to identify and try to less that process? Best regards Rodrigo Ito
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