Help ! abnormally high cpu on my 2520-24-poe

[Labanowski]

Helo,

I have about 50 full series procurve switch, switch on all these 3-5% CPU load except our POE switch that have a CPU load of between 50% and 70% and during the night of charges to 90%. have you had this problem?

is there a cli command to list processes with their CPU?

(equivalent Linux command top)

P.S. This thread has been moevd from Switches, Hubs, Modems (Legacy ITRC forum) to ProCurve / ProVision-Based. - Hp Forum Moderator

[Ardon]

Hi,

You might want to enable 'task-monitor cpu' which will then show you (entering 'Show CPU' the different processes).

How long does this CPU get elevated to around 90%? Minutes? Hours?

Just enable logging in your Telnet/SSH application and capture the output every 5 minutes or so.

You can do so by issuing the command 'Show CPU' (after having issued the 'task-monitor cpu' command) followed by a 'rep del 300'

This will grab the 'Show CPU' automatically every 5 minutes.

So connect to the box over Telnet/SSH and get into enable mode. Enable logging in your Client Telnet/SSH and issue:

#task-monitor cpu
#show cpu
#rep delay 300

Please post the result over here.

Thanks.

[Labanowski]

thx,

here 2 log on different switch 2520-24-poe

[Labanowski]

% CPU | Description
-------+--------------------------
8.9 | Idle
1.5 | Sessions & I/O
19.4 | Hardware Mgmt
70.1 | System Services

What's System Services ? why 70.1 % ? How solve this problem.

[Stu User]

I had the same issue with the same model. After 5 - 10 mins it settled down to a more normal (3-7%) range.

[cenk sasmaztin]

what is the software version of your 2520 switch

[Labanowski]

ProCurve J9138A Switch 2520-24-PoE
Software revision S.14.03

[cenk sasmaztin]

write

config)#spanning-tree

command on switch


and send me sh tech command print

[georg_r]

Hi, I had the same issue with my 2520-8-POE in a small office, SW S.15.09.0022 all ports are utilized however no actual payload would be transmitted. CPU util kept over 95% (92% used by System services).

The trick (config)#spanning-treen did it for me. Now CPU averages at 7%.

Thanks!

[Fguicherd]

Hello guys

I have a problem with a 2520-8-POE. I have the following : 

100 percent busy, from 7 sec ago
1 sec ave: 100 percent busy
5 sec ave: 100 percent busy
1 min ave: 99 percent busy

% CPU | Description
-------+--------------------------
71.4 | Idle
0.4 | Sessions & I/O
4.1 | Hardware Mgmt
6.1 | System Services
18.0 | IP Host/Routing

And it's already at 99/100%, but the detail show that idle is about 65/70% so which is right ?

The version is S.14.03

Thanks !