交換器CPU使用率高可能原因

造成CPU使用率高的幾個原因 都在下面。。。查出原因後 再對症下藥 才是明智之舉阿!!

http://h20565.www2.hp.com/portal/site/hpsc/template.PAGE/public/kb/docDisplay/?sp4ts.oid=4063679&spf_p.tpst=kbDocDisplay&spf_p.prp_kbDocDisplay=wsrp-navigationalState%3DdocId%253Demr_na-c03600468-1%257CdocLocale%253D%257CcalledBy%253D&javax.portlet.begCacheTok=com.vignette.cachetoken&javax.portlet.endCacheTok=com.vignette.cachetoken

Details

· Loops

· Attack

· Route flapping

· Too much route policy

· Possible bug

建議處理方式

1. 抓display-diag

2. 看一下diag檔案裡的CPU task哪一個task高

3. Mirror uplink，看一下裡面有無奇怪封包或攻擊封包(Switch只要有IP就有可能被攻擊)，當然也可以先將Switch IP拿掉試試。

4. 向HP Service support開tag，並提供上述資料請他們分析

<5120EI-IRF>display diagnostic-information

Save or display diagnostic information (Y=save, N=display)? [Y/N]:y

Please input the file name(*.diag)[flash:/default.diag]:diag.diag

Diagnostic information is outputting to flash:/diag.diag.

Please wait................

No enough disk space.

<5120EI-IRF>more diag.diag

=================================================================

===============running CPU usage information===============

=================================================================

===== Current CPU usage info =====

CPU Usage Stat. Cycle: 31 (Second)

CPU Usage : 36%

CPU Usage Stat. Time : 2000-05-30 17:30:31

CPU Usage Stat. Tick : 0x1630c(CPU Tick High) 0xb9323d4e(CPU Tick Low)

Actual Stat. Cycle : 0x1(CPU Tick High) 0xca4de74(CPU Tick Low)

TaskName CPU Runtime(CPU Tick High/CPU Tick Low)

VIDL 64% 0/addd801d

TICK 1% 0/ 340ff11

STMR 0% 0/ 565eb9

DSTK 0% 0/ 4bb8de

FLSH 0% 0/ 5321d

SYSM 0% 0/ 578471

PORT 0% 0/ 100e6a

L2X0 2% 0/ 6c3b79a

bC.0 0% 0/ 1bf9d87

bLK0 2% 0/ 572d821

DQFD 0% 0/ 4375f8

DQIT 0% 0/ 1002522

LPDT 0% 0/ c9a

STAT 0% 0/ 560599

FMCK 0% 0/ 691dcb

PSED 2% 0/ 70e52b8

T_DM 0% 0/ 2072db

mIPC 0% 0/ 1fd4949

DARP 0% 0/ 1ed187

T_ST 0% 0/ 1bb2f8

T_SI 0% 0/ 1f81a4

TPBR 0% 0/ 3128b1

BGRT 0% 0/ 4280eb

SCAR 0% 0/ b447e

RTMC 0% 0/ 924c3a

bRX1 1% 0/ 2b021ef

bRX2 0% 0/ 9bfdaa

STKT 0% 0/ b29004

IUCT 0% 0/ e5e9b6

VP 0% 0/ 1844

IPCB 1% 0/ 326e681

IPCD 0% 0/ 3ca1

RPCQ 0% 0/ 181ded9

RPCD 0% 0/ 62d0a

STM 1% 0/ 31f4913

STMH 0% 0/ d1e609

DRVR 0% 0/ d85fa

EXCP 0% 0/ 4810c

IPCM 0% 0/ 45503

INFO 0% 0/ 43222

HACT 0% 0/ e6edd

DEV 0% 0/ 1c77de

SFLW 0% 0/ a8592

ACL 0% 0/ 88b4c

mac 0% 0/ 3f8af

LAGG 0% 0/ 9da47

MSTP 0% 0/ 79d82

GARP 0% 0/ 516e19

CLST 0% 0/ fa588

NDP 0% 0/ bdedc

NTDP 0% 0/ 5b92a

HABP 0% 0/ 54b17

CFD 0% 0/ 699dd4

RRPP 0% 0/ 1461ca

LLDP 0% 0/ 8a92f9

DLDP 0% 0/ 139104

SMLK 0% 0/ 7ee74

ARP 0% 0/ eb4a0d

IP 0% 0/ 1817ef8

NQA 0% 0/ 1c8ed94

FSLH 0% 0/ 30f3e

FSLR 0% 0/ 2e01a4

NTPT 0% 0/ 6060b

VTYD 0% 0/ 38aa6c

ND 0% 0/ 52e3a9

AGNT 0% 0/ f61d0

TRAP 0% 0/ 2782

ACM 0% 0/ 58949c

LS 0% 0/ 2134a7

RDSO 0% 0/ 175025

RDS 0% 0/ 1ab6c

SC 0% 0/ 9cad3

NAT 0% 0/ 394a1

STND 0% 0/ 10a0d0

ROUT 0% 0/ 23ff0b7

IFNT 0% 0/ 5d60a

vt0 15% 0/2859bb83

=================================================

===============display clock===============