已解决: cpu 利用率50%

zzhauto01 · ‎08-20-2015

show process cpu
PID Runtime(ms) Invoked uSecs 5Sec 1Min 5Min TTY Process
65 6 36 166 0.00% 0.00% 0.00% 0 Transport Port
A
66 5760 117777 48 0.00% 0.00% 0.00% 0 HC Counter Time
r
67 128822026 309904 415705 28.51% 25.10% 24.96% 0 SFF8472
现在50%的利用率，SFF8472 进程差不多有30%，会是什么问题导致的
设备如下
Switch Ports Model SW Version SW Image
------ ----- ----- ---------- ----------
* 1 52 WS-C2960X-48TS-L 15.0(2a)EX5 C2960X-UNIVERSALK9-M
再用的好几台2960, 48和24口的都纯在这个问题

xupeng · ‎08-20-2015

zzhauto01 发表于 2015-9-2 09:05
有尝试过升级到最新版本，问题依旧，还多出去一个bug，幸亏在cisco国外的社区看到过类似的问题，不然设备 ...

楼主去开个case 吧. 把当前收集的信息和光模块的照片一起提供给tac工程师, 找到研发看一下这个问题吧.

在原帖中查看解决方案

xupeng · ‎08-20-2015

zzhauto01 发表于 2015-9-2 09:05
有尝试过升级到最新版本，问题依旧，还多出去一个bug，幸亏在cisco国外的社区看到过类似的问题，不然设备 ...

楼主去开个case 吧. 把当前收集的信息和光模块的照片一起提供给tac工程师, 找到研发看一下这个问题吧.

zhanghaolan · ‎08-20-2015

cdp关着吧，show cdp看看

zzhauto01 · ‎08-21-2015

zhanghaolan 发表于 2015-8-21 09:49
cdp关着吧，show cdp看看

默认开启CDP的
4个电口连接ap，1个光口连接做过堆叠的3750（3750-24 和3750-12）

zhanghaolan · ‎08-21-2015

我是说你是否关闭了自动发现协议，关闭的话就会大量占用CPU资源。

xupeng · ‎08-21-2015

1/
SFF8472 is a DOM (digital optical monitoring) for SFP's. SFF8472 is a monitoring process of SFP which is manufactured by a third-party.
2/
楼主的设备CPU利用率在50%左右, 麻烦提供一下sh process cpu sorted 的前几个进程信息.
3/
请楼主确认一下使用的光模块是不是都是思科原厂产品? 可以使用sh inv和show idprom interface XXXX命令看一下是否所有光模块的信息都是正常的.

zzhauto01 · ‎08-22-2015

xupeng 发表于 2015-8-22 10:22
1/
SFF8472 is a DOM (digital optical monitoring) for SFP's. SFF8472 is a monitoring process of SFP ...

Switch_14#show inventory
NAME: "1", DESCR: "WS-C2960X-48TS-L"
PID: WS-C2960X-48TS-L , VID: V03 , SN: FCW1913B12G
NAME: "GigabitEthernet1/0/52", DESCR: "1000BaseSX SFP"
PID: GLC-SX-MMD , VID: V01 , SN: FNS170307AN
Switch_14#show idprom inter
Switch_14#show idprom interface gi1/0/52
General SFP Information
-----------------------------------------------
Identifier : 0x03
Connector : 0x07
Transceiver : 0x00 0x00 0x00 0x01 0x00 0x00 0x0C 0x00
Encoding : 0x01
BR_Nominal : 0x0D
Vendor Name : CISCO-FINISAR
Vendor Part Number : FTLF8519P2BCL-CS
Vendor Revision : 0x56 0x30 0x31 0x20
Vendor Serial Number : FNS170307AN
-----------------------------------------------
Other Information
-------------------------------------------------------
Port asic num : 01
Port asic port num : 27
SFP presence index : 03
SFP iter cnt : 3653221
SFP failed oper flag : 0x00000000
IIC error cnt : 0
IIC error dsb cnt : 0
IIC max sts cnt : 0
Chk for link status : 01
Link status : 01
Autoneg enable : 01
Flow control Pause : 00
Flow control asymPause: 00
Duplex mode : 01
PcsInfo : 0x04F92850
MacInfo : 0x04F92830 0x04F92838
AutoNeg : 0x04F92838 0x04F92840
SFF-8472 MSA EEPROM Data
===========================================
000 : 03 04 07 00 00 00 01 00 00 0C
010 : 00 01 0D 00 00 00 37 1B 00 00
020 : 43 49 53 43 4F 2D 46 49 4E 49
030 : 53 41 52 20 20 20 00 00 00 00
040 : 46 54 4C 46 38 35 31 39 50 32
050 : 42 43 4C 2D 43 53 56 30 31 20
060 : 03 52 00 CA 00 1A 00 00 46 4E
070 : 53 31 37 30 33 30 37 41 4E 20
080 : 20 20 20 20 31 33 30 34 31 38
090 : 20 20 68 90 01 CC 00 00 08 9B
100 : AF 8B 5B 1A 84 4A 3C 99 3B 45
110 : A4 45 40 11 2E 00 00 00 00 00
120 : 00 00 00 00 05 C0 3F 60
SFF-8472 Digital Diagnostic Monitoring Data
===========================================
000 : 4B 00 FB 00 46 00 00 00 94 3E
010 : 28 92 87 5A 7A 76 C3 50 00 00
020 : AF C8 00 00 1B A7 03 7B 13 94
030 : 04 EB 13 94 00 7E 0C 5A 00 C8
040 : 00 00 00 00 00 00 00 00 00 00
050 : 00 00 00 00 00 00 00 00 00 00
060 : 00 00 00 00 00 00 00 00 3F 80
070 : 00 00 00 00 00 00 01 00 00 00
080 : 01 00 00 00 01 00 00 00 01 00
090 : 00 00 00 00 00 A4 26 A1 7D D6
100 : 09 6C 0A 1A 04 5E FF FF FF FF
110 : 00 00 00 00 00 FF 00 00 FF FF
120 : 00 00 FF 00 00 00 00 00
Apm IIC Internal Reg
-----------------------------------------------
yetiIICinited : Value=0x00000001
yetiIICLockPassCnt : Value=0
yetiIICLockFailCnt : Value=0
yetiIICLockApp : Value=48
-----------------------------------------------
-------------------------------------------------------
Switch_14#show proce
Switch_14#show processes cpu sort
CPU utilization for five seconds: 53%/0%; one minute: 51%; five minutes: 51%
PID Runtime(ms) Invoked uSecs 5Sec 1Min 5Min TTY Process
PID Runtime(ms) Invoked uSecs 5Sec 1Min 5Min TTY Process
67 190033084 457059 415805 28.45% 25.08% 24.97% 0 SFF8472
161 80069634 11426077 7007 9.84% 10.60% 10.60% 0 Hulc LED Proces
s
130 3542530 647412 5471 0.47% 0.41% 0.41% 0 hpm counter pro
c
172 1886506 114282 16507 0.29% 0.28% 0.27% 0 HQM Stack Proce
s
219 970228 4151276 233 0.17% 0.14% 0.13% 0 Spanning Tree
173 332722 228548 1455 0.05% 0.04% 0.05% 0 HRPC qos reques
t
205 9718 12702912 0 0.05% 0.00% 0.00% 0 IP ARP Retry Ag
e
7 1496815 139215 10751 0.00% 0.12% 0.16% 0 Check heaps
8 159 133 1195 0.00% 0.00% 0.00% 0 Pool Manager
10 4 2 2000 0.00% 0.00% 0.00% 0 Timers
9 0 1 0 0.00% 0.00% 0.00% 0 DiscardQ Backgr
o

zzhauto01 · ‎08-22-2015

xupeng 发表于 2015-8-22 10:22
1/
SFF8472 is a DOM (digital optical monitoring) for SFP's. SFF8472 is a monitoring process of SFP ...

同一批的光模块，用在2960X上和3750上的，用在前者2960X上的交换机上都存在这个进程cpu占用率高的问题，后者3750上没这个问题

xupeng · ‎08-26-2015

zzhauto01 发表于 2015-8-23 09:06
同一批的光模块，用在2960X上和3750上的，用在前者2960X上的交换机上都存在这个进程cpu占用率高的问题，后 ...

楼主的3750是什么版本?
如果有条件可以尝试把2960X升级到15.2(3)E之后的版本测一下.

Xin Lei · ‎08-31-2015

难道是IOS问题:lol

zzhauto01 · ‎09-01-2015

xupeng 发表于 2015-8-27 11:22
楼主的3750是什么版本?
如果有条件可以尝试把2960X升级到15.2(3)E之后的版本测一下.

有尝试过升级到最新版本，问题依旧，还多出去一个bug，幸亏在cisco国外的社区看到过类似的问题，不然设备得返厂了
Switch_16#show env all
FAN is OK
SYSTEM TEMPERATURE is OK
System Temperature Value: 0 Degree Celsius
System Temperature State: GREEN
Yellow Threshold : 58 Degree Celsius
Red Threshold : 68 Degree Celsius
SW PID Serial# Status Sys Pwr PoE Pwr Watts
-- ------------------ ---------- --------------- ------- ------- -----
1 Built-in Good
SW Status RPS Name RPS Serial# RPS Port#
-- ------------- ---------------- ----------- ---------
1 <> <>
Switch_16#show ver
Switch_16#show version
Cisco IOS Software, C2960X Software (C2960X-UNIVERSALK9-M), Version 15.2(3)E2, RELEASE SOFTWARE (fc1)
Technical Support: http://www.cisco.com/techsupport
Copyright (c) 1986-2015 by Cisco Systems, Inc.
Compiled Tue 21-Jul-15 12:50 by prod_rel_team
ROM: Bootstrap program is C2960X boot loader
BOOTLDR: C2960X Boot Loader (C2960X-HBOOT-M) Version 15.2(2r)E1, RELEASE SOFTWARE (fc1)
Switch_16 uptime is 7 minutes
System returned to ROM by power-on
System restarted at 01:33:26 UTC Sat Aug 29 2015
System image file is "flash:/c2960x-universalk9-mz.152-3.E2.bin"
Last reload reason: Unknown reason
This product contains cryptographic features and is subject to United
States and local country laws governing import, export, transfer and
use. Delivery of Cisco cryptographic products does not imply
third-party authority to import, export, distribute or use encryption.
Importers, exporters, distributors and users are responsible for

Switch_16#show pro
Switch_16#show processes cpu
Switch_16#show processes cpu sor
Switch_16#show processes cpu sorted
CPU utilization for five seconds: 49%/0%; one minute: 45%; five minutes: 30%
PID Runtime(ms) Invoked uSecs 5Sec 1Min 5Min TTY Process
67 96460 232 415775 28.55% 24.95% 16.58% 0 SFF8472
160 20047 5771 3473 5.09% 5.29% 3.56% 0 Hulc LED Process
6 543 56 9696 1.19% 0.19% 0.09% 0 Check heaps
171 566 76 7447 0.17% 0.16% 0.11% 0 HQM Stack Proces
233 39 2502 15 0.11% 0.02% 0.00% 0 UDLD

weizh4 · ‎10-08-2015

不知道楼主的问题解决了没有？
PX 回答的很专业，是一个bug.
如果升级iOS 并没有解决问题
建议是请将3750上的光纤模块与现有2960x 的光纤模块进行交叉测试后断定问题。
或者更换GLC-SX-MMD 为SFP-10GBase-SR 等其他模块，观察问题现象。