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3750/2960 CPU Hulc LED Process占用过高

jia-yupeng
Level 1
Level 1
最近用户反映不能正常获取地址,或者获取地址较慢,排查交换机发现CPU在该时间段占用过高,平均CPU较高,其中有一项Hulc LED Process尤其过高,
组网如下:汇聚做dhcp 中继,接入开启ip dhcp snooping,上联trust,配置如下:
组网连接方式:
3750---2960---终端用户
3750/2960配置见附件,
3750 CPU:
SB1F5cos3750# SH PROCesses CPu HIStory
11111
6666999997777755555555556666655555555556666666666666667777
100
90
80
70
60
50
40
30
20 *****
10 **********************************************************
0....5....1....1....2....2....3....3....4....4....5....5....
0 5 0 5 0 5 0 5 0 5
CPU% per second (last 60 seconds)
1351131122111112313123131111211131111131112144112111111231
6996335451658561133637606662986468851596759422599144754214
100
90
80
70
60 *
50 *
40 ** * * * **
30 ** * * * * * * * * * * ** * *
20 **** ** ********* ********* *** **** ****** ***** ** **
10 ##########################################################
0....5....1....1....2....2....3....3....4....4....5....5....
0 5 0 5 0 5 0 5 0 5
CPU% per minute (last 60 minutes)
* = maximum CPU% # = average CPU%
4444446576978767797777886645545677876777797777887778787767878777787777
5143489387310090933498418039309527188152032563893017609199553513381153
100
90 * * * ** * * *
80 * * * ** **** *** * * ** ** **** ***** * *
70 * ***************** ***************************************
60 * ****************** * ****************************************
50 * ********************* ** ****************************************
40 *********##############*********######################################
30 *********##############*********######################################
20 ********#################*******######################################
10 ######################################################################
0....5....1....1....2....2....3....3....4....4....5....5....6....6....7.
0 5 0 5 0 5 0 5 0 5 0 5 0
CPU% per hour (last 72 hours)
* = maximum CPU% # = average CPU%
*************************************************************************************************
2960 CPU:
SB1F5acs2960-01#sh processes cpu HIStory
222222222222222222222222222222222222222222222444443333322222
444444444444444555555555533333444444444433333444440000044444
100
90
80
70
60
50
40 *****
30 ********** **********
20 **********************************************************
10 **********************************************************
0....5....1....1....2....2....3....3....4....4....5....5....6
0 5 0 5 0 5 0 5 0 5 0
CPU% per second (last 60 seconds)
433343333333533433353343333333333333333333343333333333333233
413211128323526012404422133733216395364253316934030432352835
100
90
80
70
60 *
50 * *
40 * * * * ** * * * * ** * * *** *
30 ##**#*###################*##*#######*#############*######*
20 ##########################################################
10 ##########################################################
0....5....1....1....2....2....3....3....4....4....5....5....6
0 5 0 5 0 5 0 5 0 5 0
CPU% per minute (last 60 minutes)
* = maximum CPU% # = average CPU%
544544459999999999999999945575549999999999999999999999999999999999999999
846028844565556565555555574220065555555555555555545555555555555555655556
100 **************** ***************** ********************
90 *##############** *#####################################
80 *##############** ######################################
70 *##############** * ######################################
60 * ################* * ######################################
50 * ** ***################********######################################
40 ********#################*******######################################
30 #############################*########################################
20 ######################################################################
10 ######################################################################
0....5....1....1....2....2....3....3....4....4....5....5....6....6....7..
0 5 0 5 0 5 0 5 0 5 0 5 0
CPU% per hour (last 72 hours)
* = maximum CPU% # = average CPU%
***********************************************************************************************
其中,2960有一项明显偏高,
SB1F5acs2960-01#sh processes cpu | include Hulc LED Process
130 339840720 21143151 16073 18.39% 18.75% 18.76% 0 Hulc LED Process
*****************************************************************************************************、
对比其它区域正常的交换机 ,CPU很小,
sb1f8ac2960-01#sh processes cpu history
11111 22222
666655555666665555555555555555555544444555558888855555222228
100
90
80
70
60
50
40
30
20 ****
10 **********************************************************
0....5....1....1....2....2....3....3....4....4....5....5....6
0 5 0 5 0 5 0 5 0 5 0
CPU% per second (last 60 seconds)
211111111311111221111321111111112121211112112121111111121111
218209203054333324145239445643250434942242432523244535322844
100
90
80
70
60
50
40
30 * * *
20 * * * ** ** **** ** ** * * * *** * * * *
10 ##########################################################
0....5....1....1....2....2....3....3....4....4....5....5....6
0 5 0 5 0 5 0 5 0 5 0
CPU% per minute (last 60 minutes)
* = maximum CPU% # = average CPU%
323222332332433323223332232332222322233233323233222323232322323332333222
280574603177321842460823438525446067712813280870665181829199080313801969
100
90
80
70
60
50
40 * * * * * * * *
30 ***** ** ******* * **** ***** ********************************* ****
20 **********************************************************************
10 ######################################################################
0....5....1....1....2....2....3....3....4....4....5....5....6....6....7..
0 5 0 5 0 5 0 5 0 5 0 5 0
CPU% per hour (last 72 hours)
* = maximum CPU% # = average CPU%
********************************************************************************************
sb1f8ac2960-01#sh processes cpu | include Hulc LED Process
130 42223703 1393483091 30 0.00% 0.05% 0.04% 0 Hulc LED Process
**************************************
最近几天早上上班时间都有用户报障(7:00-9:30)不知道是不是当时cpu过高,设备处理慢或者丢包引起,
请帮忙看看。
感谢。
1 个已接受解答

已接受的解答

Luke Huang
Cisco Employee
Cisco Employee
2 条回复2

Luke Huang
Cisco Employee
Cisco Employee
http://bbs.csc-china.com.cn/forum.php?mod=viewthread&tid=16953
不是什么大问题,以前已经写过帖子了

Rockyw
Spotlight
Spotlight
楼主参与一下下面的文档
Cisco Bug: CSCtn42790 - 3560X/3750X: Elevated CPU usage due to Hulc LED process
https://quickview.cloudapps.cisco.com/quickview/bug/CSCtn42790
Hulc LED Process
https://community.cisco.com/t5/switching/hulc-led-process/td-p/1178678
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
Rockyw | If it solves your problem, please mark as answer. Thanks !
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