Good day.
Could you please help me with problem bellow. We got a cisco 3600 router with follow data:
Cisco IOS Software, 3600 Software (C3640-IK9O3S-M), Version 12.4(19b), RELEASE SOFTWARE (fc1)
System image file is "flash:c3640-ik9o3s-mz.124-19b.bin"
As you can see from title i find out that router cpu overloaded with usage of IP NAT Ager proc. I was make a little research and many answers was pointed on buggy ios. How i can find is my IOS fresh enough, or it's needs to be renewed, and if it is needs to be renewd how can i get a newer ver of ois. Or if it is not required to be renewed, how i can troubleshoot my problem.
We have a network about 200 users, and very often cpu usage verry overloaded. i was run a comand cache verbose flow, but i can't understand it output, can u please help me with it
***net#show ip cache verbose flow
IP packet size distribution (40905782 total packets):
1-32 64 96 128 160 192 224 256 288 320 352 384 416 448 480
.000 .488 .057 .033 .017 .009 .007 .005 .005 .004 .004 .004 .005 .003 .003
512 544 576 1024 1536 2048 2560 3072 3584 4096 4608
.003 .003 .012 .028 .302 .000 .000 .000 .000 .000 .000
IP Flow Switching Cache, 278544 bytes
679 active, 3417 inactive, 3374714 added
48039300 ager polls, 0 flow alloc failures
Active flows timeout in 1 minutes
Inactive flows timeout in 15 seconds
IP Sub Flow Cache, 42120 bytes
679 active, 1369 inactive, 3374714 added, 3374714 added to flow
0 alloc failures, 0 force free
2 chunks, 26 chunks added
last clearing of statistics never
Protocol Total Flows Packets Bytes Packets Active(Sec) Idle(Sec)
-------- Flows /Sec /Flow /Pkt /Sec /Flow /Flow
TCP-Telnet 103 0.0 21 106 0.0 40.5 7.1
TCP-WWW 1860524 21.3 9 641 213.1 4.2 7.6
TCP-SMTP 143 0.0 166 882 0.2 12.3 2.7
TCP-X 5 0.0 6 269 0.0 2.1 9.6
TCP-other 1466906 16.8 14 441 248.5 3.8 11.9
UDP-DNS 24 0.0 4 61 0.0 7.6 15.5
UDP-NTP 849 0.0 1 76 0.0 0.1 15.5
UDP-other 38900 0.4 2 103 1.1 11.5 15.4
ICMP 6581 0.0 77 84 5.8 50.9 2.8
Total: 3374035 38.6 12 527 469.0 4.2 9.6
SrcIf SrcIPaddress DstIf DstIPaddress Pr TOS Flgs Pkts
Port Msk AS Port Msk AS NextHop B/Pk Active
Fa0/0 62.33.158.75 Fa0/1* 78.100.33.10 06 00 18 1
0497 /29 0 01BB /0 0 0.0.0.0 81 0.0
FFlags: 01
Fa0/0 62.33.158.75 Fa0/1* 173.194.32.53 06 00 10 1
0506 /29 0 01BB /0 0 0.0.0.0 40 0.0
FFlags: 01
Fa0/1 128.140.168.216 Fa0/0* 192.168.2.190 06 00 1B 3
07FA /0 0 D1C3 /0 0 0.0.0.0 49 0.5
FFlags: 01
Fa0/1 94.100.184.16 Fa0/0* 192.168.2.224 06 00 11 1
0050 /0 0 F583 /0 0 0.0.0.0 40 0.0
FFlags: 01
Fa0/0 62.33.158.75 Fa0/1* 94.100.187.29 06 00 1A 4
04EA /29 0 07F9 /0 0 0.0.0.0 174 0.9
FFlags: 01
Fa0/1 213.180.204.210 Fa0/0* 192.168.2.135 06 60 18 1
0050 /0 0 C9A9 /0 0 0.0.0.0 47 0.0
FFlags: 01
Fa0/0 62.33.158.75 Fa0/1* 78.100.33.10 06 00 18 1
04BB /29 0 01BB /0 0 0.0.0.0 81 0.0
FFlags: 01
Fa0/0 62.33.158.75 Fa0/1* 92.123.155.73 06 00 18 42
SrcIf SrcIPaddress DstIf DstIPaddress Pr TOS Flgs Pkts
Port Msk AS Port Msk AS NextHop B/Pk Active
0514 /29 0 0050 /0 0 0.0.0.0 69 11.9
FFlags: 01
Fa0/1 80.239.148.210 Fa0/0* 192.168.2.140 06 00 1A 4
0050 /0 0 D2AD /0 0 0.0.0.0 721 1.1
FFlags: 01
Fa0/1 2.23.143.139 Fa0/0* 192.168.2.137 06 00 18 1
0050 /0 0 C27E /0 0 0.0.0.0 454 0.0
FFlags: 01
Fa0/0 62.33.158.75 Fa0/1* 178.250.1.71 06 00 1A 6
E8E6 /29 0 0050 /0 0 0.0.0.0 750 6.6
FFlags: 01
Fa0/0 62.33.158.75 Fa0/1* 78.109.87.4 06 00 1B 9
CF35 /29 0 0050 /0 0 0.0.0.0 96 7.7
FFlags: 01
Fa0/0 62.33.158.75 Fa0/1* 69.171.227.41 06 00 18 2
C444 /29 0 0050 /0 0 0.0.0.0 545 0.0
FFlags: 01
Fa0/0 62.33.158.75 Fa0/1* 70.77.195.77 06 00 18 108
F643 /29 0 1545 /0 0 0.0.0.0 58 13.9
FFlags: 01
Fa0/0 62.33.158.75 Fa0/1* 70.77.195.77 06 00 18 6
F645 /29 0 1545 /0 0 0.0.0.0 132 10.4
FFlags: 01
Fa0/0 62.33.158.75 Fa0/1* 70.77.195.77 06 00 18 116
F644 /29 0 1545 /0 0 0.0.0.0 59 15.9
FFlags: 01
Fa0/0 62.33.158.75 Fa0/1* 70.77.195.77 06 00 18 6
F646 /29 0 1545 /0 0 0.0.0.0 132 10.3
FFlags: 01
Fa0/1 81.176.76.83 Fa0/0* 192.168.2.137 06 00 10 1
0050 /0 0 C289 /0 0 0.0.0.0 40 0.0
FFlags: 01
Fa0/0 62.33.158.75 Fa0/1* 94.100.179.73 06 00 10 1
CB57 /29 0 0050 /0 0 0.0.0.0 41 0.0
FFlags: 01
Fa0/1 207.46.124.180 Fa0/0* 192.168.2.63 06 00 18 16
0050 /0 0 0414 /0 0 0.0.0.0 310 39.5
FFlags: 01
......
Thanks a lot.
