10-25-2013 09:38 PM - edited 03-07-2019 04:15 PM
Dear Experts
Recently we have install windows 2012 active direcoty on our network. The network consisted with cisco devices. Cisco 3750 act as the core stack in the network. With the installtion of Active directory the 3750 stack shows high cpu utilization. it is about 85%.
Version as follows
Switch Ports Model SW Version SW Image
------ ----- ----- ---------- ----------
* 1 12 WS-C3750G-12S 12.2(35)SE5 C3750-IPSERVICES-M
2 28 WS-C3750G-24TS-1U 12.2(35)SE5 C3750-IPSERVICES-M
CPU utilization for five seconds: 82%/59%; one minute: 83%; five minutes: 86%
PID Runtime(ms) Invoked uSecs 5Sec 1Min 5Min TTY Process
71 25391368 108175695 234 7.83% 8.69% 9.40% 0 HLFM address lea
122 118643138 2876295 41248 6.87% 6.84% 6.52% 0 HL3U bkgrd proce
182 287 178 1612 1.11% 0.20% 0.04% 1 Virtual Exec
176 32508366 53084744 612 0.79% 1.21% 1.20% 0 Spanning Tree
173 1056945 2557586 413 0.63% 0.44% 0.42% 0 IP Input
49 460925 66736752 6 0.47% 0.17% 0.08% 0 RedEarth Tx Mana
121 1744057 104152603 16 0.15% 0.09% 0.07% 0 Hulc LED Process
168 589862 1430258 412 0.15% 0.08% 0.06% 0 CDP Protocol
9 189730 503145 377 0.15% 0.06% 0.11% 0 ARP Input
129 1671871 750983 2226 0.15% 0.11% 0.12% 0 HQM Stack Proces
59 697794 5175909 134 0.15% 0.05% 0.02% 0 hrpc <- response
78 410655 1761833 233 0.15% 0.13% 0.11% 0 HSRP (Standby)
73 92149 108884148 0 0.15% 0.04% 0.00% 0 HLFM address ret
13 33 13 2538 0.00% 0.00% 0.00% 0 Entity MIB API
14 0 1 0 0.00% 0.00% 0.00% 0 IFS Agent Manage
12 0 1 0 0.00% 0.00% 0.00% 0 Policy Manager
17 5136 3727225 1 0.00% 0.00% 0.00% 0 IPC Periodic Tim
15 53 62710 0 0.00% 0.00% 0.00% 0 IPC Dynamic Cach
16 16 31355 0 0.00% 0.00% 0.00% 0 DHCPD Timer
20 2016 54193 37 0.00% 0.00% 0.00% 0 IPC Seat Manager
21 0 1 0 0.00% 0.00% 0.00% 0 IPC Session Serv
11 0 2 0 0.00% 0.00% 0.00% 0 AAA high-capacit
23 6558 3727226 1 0.00% 0.00% 0.00% 0 Dynamic ARP Insp
7 166 25087 6 0.00% 0.00% 0.00% 0 HULC Thermal Pro
18 0 28 0 0.00% 0.00% 0.00% 0 IPC Managed Time
19 4258 3727229 1 0.00% 0.00% 0.00% 0 IPC Deferred Por
22 34199 1125278 30 0.00% 0.00% 0.00% 0 HC Counter Timer
28 0 2 0 0.00% 0.00% 0.00% 0 XML Proxy Client
29 0 1 0 0.00% 0.00% 0.00% 0 Critical Bkgnd
30 47688 1291543 36 0.00% 0.00% 0.00% 0 Net Background
4 3366687 412582 8160 0.00% 0.07% 0.07% 0 Check heaps
24 0 1 0 0.00% 0.00% 0.00% 0 ARP Snoop
8 0 1 0 0.00% 0.00% 0.00% 0 Crash writer
34 91968 3727721 24 0.00% 0.00% 0.00% 0 Per-Second Jobs
35 719737 63141 11398 0.00% 0.02% 0.00% 0 Per-minute Jobs
3 139248 5584349 24 0.00% 0.01% 0.00% 0 CEF: IPv4 proces
2 2795 751049 3 0.00% 0.00% 0.00% 0 Load Meter
A-IT-CORE-STACK-A-SW#sh ip traffic
IP statistics:
Rcvd: 52483756 total, 49569116 local destination
0 format errors, 251 checksum errors, 753298 bad hop count
0 unknown protocol, 16682 not a gateway
0 security failures, 0 bad options, 388 with options
Opts: 0 end, 0 nop, 0 basic security, 0 loose source route
0 timestamp, 0 extended security, 0 record route
0 stream ID, 0 strict source route, 388 alert, 0 cipso, 0 ump
0 other
Frags: 0 reassembled, 0 timeouts, 0 couldn't reassemble
0 fragmented, 0 couldn't fragment
Bcast: 10388117 received, 65756 sent
Mcast: 38579103 received, 37250868 sent
Sent: 38182048 generated, 3488720571 forwarded
Drop: 2008572 encapsulation failed, 0 unresolved, 0 no adjacency
0 no route, 0 unicast RPF, 0 forced drop
0 options denied, 0 source IP address zero
ICMP statistics:
Rcvd: 0 format errors, 0 checksum errors, 0 redirects, 2364 unreachable
212041 echo, 3018 echo reply, 0 mask requests, 0 mask replies, 0 quench
0 parameter, 0 timestamp, 0 info request, 0 other
694 irdp solicitations, 0 irdp advertisements
Sent: 2036 redirects, 7041 unreachable, 3025 echo, 212041 echo reply
0 mask requests, 0 mask replies, 0 quench, 0 timestamp
0 info reply, 31411 time exceeded, 0 parameter problem
0 irdp solicitations, 0 irdp advertisements
Could you please anyone can give me a solution..
regards
Priyan
10-30-2013 04:56 PM
Hello Priyan,
I've seen this issue before, I would say you most likely are hitting CSCta80514, fortunately its a known bug that was fixed years ago. Are the "bad hop counters" incrementing under "show ip traffic" ??
reference:
http://tools.cisco.com/Support/BugToolKit/search/getBugDetails.do?method=fetchBugDetails&bugId=CSCta80514
HTH
Lp
10-31-2013 09:50 PM
Hi.. Richard..
Thank you very much giving me a reply to my post .
Yes it is incrementing..
A-IT-CORE-STACK-A-SW#sh ip traffic
IP statistics:
Rcvd: 59209630 total, 55993678 local destination
0 format errors, 283 checksum errors, 849599 bad hop count
0 unknown protocol, 30618 not a gateway
0 security failures, 0 bad options, 388 with options
Opts: 0 end, 0 nop, 0 basic security, 0 loose source route
0 timestamp, 0 extended security, 0 record route
0 stream ID, 0 strict source route, 388 alert, 0 cipso, 0 ump
0 other
regards
Priyan
Discover and save your favorite ideas. Come back to expert answers, step-by-step guides, recent topics, and more.
New here? Get started with these tips. How to use Community New member guide