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2011

March 18th, 2022 14:00

Switch S4128F-ON high cpu

Hi, we have 2 S4128F-ON and we are having a high cpu consumption in only one of them. When this happens, the switch start to drop packets. It's something between 8-10, 3 to 5 times a day and the impact is huge, because of our topology. This occurs so fast that we don't have time to login and verify which process is causing it.

I've seen the process base_nas comsuming a lot, but I couldn't see at the right moment.


Both switches use version: 10.5.2.3.316

 

show logging output:

<164>1 2022-03-15T11:42:38.862070-03:00 SWCORE01 dn_alm 788 - - Node.1-Unit.1:PRI [alarm], Dell EMC (OS10) %PM_SYS_UTIL_LO: CPU Utilization 1-minute Low Threshold alarm Raised: 78.86 (85-75) %%ACTION=RAISED %%SEQUENCE=5672
<161>1 2022-03-15T11:42:40.235248-03:00 SWCORE01 dn_alm 788 - - Node.1-Unit.1:PRI [alarm], Dell EMC (OS10) %PM_SYS_UTIL_HI: CPU Utilization 1-minute High Threshold alarm Raised: 87.83 (85-75) %%ACTION=RAISED %%SEQUENCE=5673
<165>1 2022-03-15T11:44:23.054397-03:00 SWCORE01 dn_alm 788 - - Node.1-Unit.1:PRI [alarm], Dell EMC (OS10) %PM_SYS_UTIL_HI: CPU Utilization 1-minute High Threshold alarm Cleared: 82.28 (85-75) %%ACTION=CLEARED %%SEQUENCE=5673
<165>1 2022-03-15T11:44:32.482411-03:00 SWCORE01 dn_alm 788 - - Node.1-Unit.1:PRI [alarm], Dell EMC (OS10) %PM_SYS_UTIL_LO: CPU Utilization 1-minute Low Threshold alarm Cleared: 70.42 (85-75) %%ACTION=CLEARED %%SEQUENCE=5672
<164>1 2022-03-15T15:55:57.110752-03:00 SWCORE01 dn_alm 788 - - Node.1-Unit.1:PRI [alarm], Dell EMC (OS10) %PM_SYS_UTIL_LO: CPU Utilization 1-minute Low Threshold alarm Raised: 76.44 (85-75) %%ACTION=RAISED %%SEQUENCE=5684
<165>1 2022-03-15T15:56:11.228742-03:00 SWCORE01 dn_alm 788 - - Node.1-Unit.1:PRI [alarm], Dell EMC (OS10) %PM_SYS_UTIL_LO: CPU Utilization 1-minute Low Threshold alarm Cleared: 72.97 (85-75) %%ACTION=CLEARED %%SEQUENCE=5684
<164>1 2022-03-15T15:57:21.960078-03:00 SWCORE01 dn_alm 788 - - Node.1-Unit.1:PRI [alarm], Dell EMC (OS10) %PM_SYS_UTIL_LO: CPU Utilization 1-minute Low Threshold alarm Raised: 77.81 (85-75) %%ACTION=RAISED %%SEQUENCE=5686
<161>1 2022-03-15T15:57:31.359501-03:00 SWCORE01 dn_alm 788 - - Node.1-Unit.1:PRI [alarm], Dell EMC (OS10) %PM_SYS_UTIL_HI: CPU Utilization 1-minute High Threshold alarm Raised: 89.61 (85-75) %%ACTION=RAISED %%SEQUENCE=5687
<165>1 2022-03-15T15:58:04.199289-03:00 SWCORE01 dn_alm 788 - - Node.1-Unit.1:PRI [alarm], Dell EMC (OS10) %PM_SYS_UTIL_HI: CPU Utilization 1-minute High Threshold alarm Cleared: 84.10 (85-75) %%ACTION=CLEARED %%SEQUENCE=5687
<165>1 2022-03-15T15:58:18.268686-03:00 SWCORE01 dn_alm 788 - - Node.1-Unit.1:PRI [alarm], Dell EMC (OS10) %PM_SYS_UTIL_LO: CPU Utilization 1-minute Low Threshold alarm Cleared: 72.09 (85-75) %%ACTION=CLEARED %%SEQUENCE=5686

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5.3K Posts

March 20th, 2022 17:00

Hi, there can be many reasons for high CPU consumption. This alone can't really tell nothing. Have you made some changes recently? Switch code update? changes in topology at all? 

1 Message

December 6th, 2023 06:23

We are also experiencing this issue. Here is what is shown when I run the command SHOW EVENT HISTORY

xCore1# show event history
Sq No   State        Name                             Timestamp                   Source
-----   --------     ------------------------------   --------------------------- --------------
7383588 stateless    PM_SYS_UTIL_HI                   Wed Dec 06 14:11:15 2023    Top 3 Processes CPU utilization(%): base_nas(1561) - 60.99 , zmq-bind-proxyd(589
7383587 raised       PM_SYS_UTIL_HI                   Wed Dec 06 14:11:15 2023    CPU Utilization 1-minute High Threshold alarm Raised: 87.27 (85-75)
7383586 raised       PM_SYS_UTIL_LO                   Wed Dec 06 14:11:11 2023    CPU Utilization 1-minute Low Threshold alarm Raised: 81.40 (85-75)
7383585 cleared      PM_SYS_UTIL_LO                   Wed Dec 06 14:09:41 2023    CPU Utilization 1-minute Low Threshold alarm Cleared: 69.82 (85-75)
7383584 cleared      PM_SYS_UTIL_HI                   Wed Dec 06 14:09:32 2023    CPU Utilization 1-minute High Threshold alarm Cleared: 82.84 (85-75)
7383583 raised       PM_SYS_UTIL_HI                   Wed Dec 06 14:08:45 2023    CPU Utilization 5-minute High Threshold alarm Raised: 80.29 (80-70)
7383582 raised       PM_SYS_UTIL_HI                   Wed Dec 06 14:06:10 2023    CPU Utilization 1-minute High Threshold alarm Raised: 87.66 (85-75)
7383581 raised       PM_SYS_UTIL_LO                   Wed Dec 06 14:06:00 2023    CPU Utilization 1-minute Low Threshold alarm Raised: 75.59 (85-75)
7383580 stateless    ALM_AUTH_EVENT                   Wed Dec 06 14:04:54 2023    MESSAGE=pam_unix(sshd:session): session opened for user admin by (uid=0)
7383579 stateless    ALM_AUTH_EVENT                   Wed Dec 06 14:04:51 2023    MESSAGE=pam_unix(sshd:session): session opened for user admin by (uid=0)
7383578 cleared      PM_SYS_UTIL_HI                   Wed Dec 06 14:04:50 2023    CPU Utilization 5-minute High Threshold alarm Cleared: 79.47 (80-70)
7383577 cleared      PM_SYS_UTIL_LO                   Wed Dec 06 14:03:53 2023    CPU Utilization 1-minute Low Threshold alarm Cleared: 73.89 (85-75)
7383576 cleared      PM_SYS_UTIL_HI                   Wed Dec 06 14:03:48 2023    CPU Utilization 1-minute High Threshold alarm Cleared: 80.02 (85-75)
7383575 stateless    ALM_AUTH_EVENT                   Wed Dec 06 13:59:01 2023    MESSAGE=pam_unix(sshd:session): session closed for user admin
7383574 stateless    ALM_AUTH_EVENT                   Wed Dec 06 13:58:43 2023    MESSAGE=pam_unix(sshd:session): session closed for user admin
7383573 raised       PM_SYS_UTIL_HI                   Wed Dec 06 13:58:24 2023    CPU Utilization 5-minute High Threshold alarm Raised: 80.52 (80-70)
7383572 raised       PM_SYS_UTIL_HI                   Wed Dec 06 13:58:24 2023    CPU Utilization 1-minute High Threshold alarm Raised: 85.24 (85-75)
7383571 raised       PM_SYS_UTIL_LO                   Wed Dec 06 13:58:19 2023    CPU Utilization 1-minute Low Threshold alarm Raised: 78.63 (85-75)
7383570 raised       PM_SYS_UTIL_LO                   Wed Dec 06 13:57:41 2023    CPU Utilization 5-minute Low Threshold alarm Raised: 70.64 (80-70)
7383569 cleared      PM_SYS_UTIL_LO                   Wed Dec 06 13:57:18 2023    CPU Utilization 5-minute Low Threshold alarm Cleared: 69.94 (80-70)
7383568 cleared      PM_SYS_UTIL_LO                   Wed Dec 06 13:56:50 2023    CPU Utilization 1-minute Low Threshold alarm Cleared: 74.70 (85-75)
7383567 cleared      PM_SYS_UTIL_HI                   Wed Dec 06 13:56:45 2023    CPU Utilization 1-minute High Threshold alarm Cleared: 81.39 (85-75)
7383566 raised       PM_SYS_UTIL_LO                   Wed Dec 06 13:56:31 2023    CPU Utilization 5-minute Low Threshold alarm Raised: 70.65 (80-70)
7383565 raised       PM_SYS_UTIL_HI                   Wed Dec 06 13:54:29 2023    CPU Utilization 1-minute High Threshold alarm Raised: 89.73 (85-75)
7383564 raised       PM_SYS_UTIL_LO                   Wed Dec 06 13:54:19 2023    CPU Utilization 1-minute Low Threshold alarm Raised: 78.63 (85-75)
7383563 cleared      PM_SYS_UTIL_LO                   Wed Dec 06 13:47:53 2023    CPU Utilization 5-minute Low Threshold alarm Cleared: 69.36 (80-70)
7383562 cleared      PM_SYS_UTIL_HI                   Wed Dec 06 13:47:16 2023    CPU Utilization 5-minute High Threshold alarm Cleared: 78.79 (80-70)
7383561 cleared      PM_SYS_UTIL_LO                   Wed Dec 06 13:46:33 2023    CPU Utilization 1-minute Low Threshold alarm Cleared: 69.50 (85-75)
7383560 cleared      PM_SYS_UTIL_HI                   Wed Dec 06 13:46:24 2023    CPU Utilization 1-minute High Threshold alarm Cleared: 82.06 (85-75)
7383559 stateless    ALM_AUTH_EVENT                   Wed Dec 06 13:46:19 2023    MESSAGE=pam_unix(sshd:session): session opened for user admin by (uid=0)
7383558 stateless    VLT_DELAY_RESTORE_COMPLETE       Wed Dec 06 13:46:17 2023
7383557 stateless    ALM_AUTH_EVENT                   Wed Dec 06 13:46:17 2023    MESSAGE=pam_unix(sshd:session): session opened for user admin by (uid=0)
7383556 raised       PM_SYS_UTIL_LO                   Wed Dec 06 13:45:51 2023    CPU Utilization 5-minute Low Threshold alarm Raised: 97.11 (80-70)
7383555 raised       PM_SYS_UTIL_HI                   Wed Dec 06 13:45:51 2023    CPU Utilization 5-minute High Threshold alarm Raised: 97.11 (80-70)

We also have a yellow color from our SYSTEM LED Indicator.

(edited)

Moderator

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2.9K Posts

06-12-2023 15:04 PM

Hi, if you are in one of the following 10.5.3.5 and 10.5.4.4 firmware versions. I recommend you to update FW.
 If switch in full switch mode you can try turning off the ARP suppression feature in the EVPN profile.

S4128F# configure terminal
S4128F(config)# evpn
S4128F(config-evpn)# arp-nd-suppression disabled

But other than that I can recommend to reach your local Dell network support team and open a ticket.

DELL-Erman O

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