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Cisco 3845 high CPU Utilization

Hello,

I have Cisco 3845 on my network. We are VOIP company. Currently we have about 200 calls using G711 codec but CPU is about 50 -70%. Is that normal?

Please check the information below. Any help will be appreciated.

3845#sh int | in packets/sec

5 minute input rate 14538000 bits/sec, 14062 packets/sec

5 minute output rate 16163000 bits/sec, 9421 packets/sec

5 minute input rate 13022000 bits/sec, 9430 packets/sec

5 minute output rate 18369000 bits/sec, 13252 packets/sec

3845#sh process cpu sorted | ex 00%

CPU utilization for five seconds: 73%/36%; one minute: 57%; five minutes: 60%

PID Runtime(ms)     Invoked     uSecs   5Sec   1Min   5Min TTY Process

377   398612984   170242888       2341 19.27% 9.84% 11.14%   0 CCSIP_SPI_CONTRO

104   31521528   34095094       924 3.35% 1.15% 1.39%   0 AFW_application_

365   88681596   196200936       451 3.11% 3.11% 3.15%   0 VOIP_RTCP

147   92482720   267708647       345 3.11% 2.95% 2.98%   0 IP Input

29   45171516   58959597       766 1.91% 1.37% 1.49%   0 AFW_application_

65   107234936     8617109     12444 1.19% 1.16% 1.17%   0 Per-Second Jobs

363   11853212   21519839       550 0.71% 0.28% 0.32%   0 CC-API_VCM

378    8574140   20384057       420 0.47% 0.20% 0.23%   0 CCSIP_DNS

118     1105988 1088496436         1 0.31% 0.37% 0.37%   0 Ethernet Msec Ti

312         68         162       419 0.15% 0.05% 0.01% 707 Virtual Exec

   2     120020     1722881        69 0.07% 0.02% 0.01%   0 Load Meter

143     488760   266187951         1 0.07% 0.05% 0.07%   0 IPAM Manager

3845#sh ver

Cisco IOS Software, 3800 Software (C3845-ADVENTERPRISEK9-M), Version 15.1(3)T3, RELEASE SOFTWARE (fc1)

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

Copyright (c) 1986-2011 by Cisco Systems, Inc.

Compiled Wed 14-Dec-11 23:31 by prod_rel_team

ROM: System Bootstrap, Version 12.4(13r)T, RELEASE SOFTWARE (fc1)

3845 uptime is 14 weeks, 1 day, 17 hours, 17 minutes

System returned to ROM by bus error at PC 0x63D584E4, address 0xB0D0AF9 at 10:57:19 UTC Wed Dec 19 2012

System image file is "flash:c3845-adventerprisek9-mz.151-3.T3.bin"

Last reload type: Normal Reload

Cisco 3845 (revision 1.0) with 484352K/39936K bytes of memory.

Processor board ID FTX1228A0J5

2 Gigabit Ethernet interfaces

2 Virtual Private Network (VPN) Modules

DRAM configuration is 64 bits wide with parity enabled.

479K bytes of NVRAM.

126000K bytes of ATA System CompactFlash (Read/Write)

3845#sh ip int g0/0

GigabitEthernet0/0 is up, line protocol is up

Address determined by non-volatile memory

MTU is 1500 bytes

Helper address is not set

Directed broadcast forwarding is disabled

Outgoing access list is not set

Inbound access list is not set

Proxy ARP is enabled

Local Proxy ARP is disabled

Security level is default

Split horizon is enabled

ICMP redirects are always sent

ICMP unreachables are always sent

ICMP mask replies are never sent

IP fast switching is enabled

IP fast switching on the same interface is disabled

IP Flow switching is disabled

IP CEF switching is enabled

IP CEF switching turbo vector

IP multicast fast switching is enabled

IP multicast distributed fast switching is disabled

IP route-cache flags are Fast, CEF

Router Discovery is disabled

IP output packet accounting is disabled

IP access violation accounting is disabled

TCP/IP header compression is disabled

RTP/IP header compression is disabled

Policy routing is disabled

Network address translation is disabled

BGP Policy Mapping is disabled

Input features: MCI Check

WCCP Redirect outbound is disabled

WCCP Redirect inbound is disabled

WCCP Redirect exclude is disabled

3845#sh ip int g0/1

GigabitEthernet0/1 is up, line protocol is up

Internet protocol processing disabled

3845#

3845#

3845#sh ip int g0/1.1

GigabitEthernet0/1.1 is up, line protocol is up

Address determined by non-volatile memory

MTU is 1500 bytes

Helper address is not set

Directed broadcast forwarding is disabled

Outgoing access list is not set

Inbound access list is not set

Proxy ARP is enabled

Local Proxy ARP is disabled

Security level is default

Split horizon is enabled

ICMP redirects are always sent

ICMP unreachables are always sent

ICMP mask replies are never sent

IP fast switching is enabled

IP fast switching on the same interface is enabled

IP Flow switching is disabled

IP CEF switching is enabled

IP CEF switching turbo vector

IP multicast fast switching is enabled

IP multicast distributed fast switching is disabled

IP route-cache flags are Fast, CEF

Router Discovery is disabled

IP output packet accounting is disabled

IP access violation accounting is disabled

TCP/IP header compression is disabled

RTP/IP header compression is disabled

Policy routing is disabled

Network address translation is disabled

BGP Policy Mapping is disabled

Input features: MCI Check

WCCP Redirect outbound is disabled

WCCP Redirect inbound is disabled

WCCP Redirect exclude is disabled

3845#sh ip int g0/1.2

GigabitEthernet0/1.2 is up, line protocol is up

Address determined by non-volatile memory

MTU is 1500 bytes

Helper address is not set

Directed broadcast forwarding is disabled

Outgoing access list is not set

Inbound access list is 102

Proxy ARP is enabled

Local Proxy ARP is disabled

Security level is default

Split horizon is enabled

ICMP redirects are always sent

ICMP unreachables are always sent

ICMP mask replies are never sent

IP fast switching is enabled

IP fast switching on the same interface is enabled

IP Flow switching is disabled

IP CEF switching is enabled

IP CEF switching turbo vector

IP multicast fast switching is enabled

IP multicast distributed fast switching is disabled

IP route-cache flags are Fast, CEF

Router Discovery is disabled

IP output packet accounting is disabled

IP access violation accounting is disabled

TCP/IP header compression is disabled

RTP/IP header compression is disabled

Policy routing is disabled

Network address translation is disabled

BGP Policy Mapping is disabled

Input features: Access List, MCI Check

WCCP Redirect outbound is disabled

WCCP Redirect inbound is disabled

WCCP Redirect exclude is disabled

3845#sh int g0/0

GigabitEthernet0/0 is up, line protocol is up

MTU 1500 bytes, BW 1000000 Kbit/sec, DLY 10 usec,

     reliability 255/255, txload 4/255, rxload 3/255

Encapsulation ARPA, loopback not set

Keepalive set (10 sec)

Full Duplex, 1Gbps, media type is RJ45

output flow-control is XON, input flow-control is XON

ARP type: ARPA, ARP Timeout 04:00:00

Last input 00:00:00, output 00:00:00, output hang never

Last clearing of "show interface" counters never

Input queue: 3/75/3238/105258 (size/max/drops/flushes); Total output drops: 0

Queueing strategy: fifo

Output queue: 0/40 (size/max)

5 minute input rate 14889000 bits/sec, 14700 packets/sec

5 minute output rate 16504000 bits/sec, 9638 packets/sec

     2000339267 packets input, 1061305423 bytes, 0 no buffer

     Received 3150988 broadcasts (0 IP multicasts)

     0 runts, 0 giants, 256 throttles

     1 input errors, 0 CRC, 0 frame, 1 overrun, 0 ignored

     0 watchdog, 7616795 multicast, 0 pause input

     2016664386 packets output, 3154500881 bytes, 0 underruns

     0 output errors, 0 collisions, 1 interface resets

     0 unknown protocol drops

     0 babbles, 0 late collision, 0 deferred

     2 lost carrier, 0 no carrier, 0 pause output

     0 output buffer failures, 0 output buffers swapped out

3845#sh int g0/1

GigabitEthernet0/1 is up, line protocol is up

MTU 1500 bytes, BW 1000000 Kbit/sec, DLY 10 usec,

     reliability 255/255, txload 4/255, rxload 3/255

Encapsulation 802.1Q Virtual LAN, Vlan ID 1., loopback not set

Keepalive set (10 sec)

Full Duplex, 1Gbps, media type is RJ45

output flow-control is XON, input flow-control is XON

ARP type: ARPA, ARP Timeout 04:00:00

Last input 00:00:00, output 00:00:00, output hang never

Last clearing of "show interface" counters never

Input queue: 0/75/653/16190 (size/max/drops/flushes); Total output drops: 0

Queueing strategy: fifo

Output queue: 0/40 (size/max)

5 minute input rate 13306000 bits/sec, 9651 packets/sec

5 minute output rate 18921000 bits/sec, 13868 packets/sec

     2064450389 packets input, 808347487 bytes, 0 no buffer

     Received 143604 broadcasts (0 IP multicasts)

     0 runts, 0 giants, 26 throttles

     6 input errors, 0 CRC, 0 frame, 5 overrun, 0 ignored

     0 watchdog, 436478 multicast, 0 pause input

     240219952 packets output, 712158967 bytes, 0 underruns

     0 output errors, 0 collisions, 1 interface resets

     0 unknown protocol drops

     0 babbles, 0 late collision, 0 deferred

     2 lost carrier, 0 no carrier, 0 pause output

     0 output buffer failures, 0 output buffers swapped out

3845#

Note:The inbound access-list applied to interface g0/1.2 only have 31 lines.

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Cisco 3845 high CPU Utilization

Yes, it seems about normal.