network strange behaviour

sword12
sword12 used Ask the Experts™
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we have HP switches

SW5900 - sw5820  as core switches and a lot of other switches around such sw5120 and 5130

plus we have aerohive wireless access points

now we suffer strange problem that some ports on the switches gos down and up  and i dont know how can start to troubleshooting such problem

which toll can help to get useful information for such problem

the switch log give no useful info
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Commented:
I guess you should check spanning tree protocol first.
HP STP configuration
In fact that, I guess, is most likely cause, first you should check logs on those switches (if logging is enabled).
ProVision  # show logging
Comware5 # display info-center

I guess that this can be useful Cisco ProVision Comware 5 CLI commands.

Commented:
Are any of the ports which have been going down ones which are directly connected to any access points?
Have you been tweaking your Aerohive AP configurations recently? Do you have any set to be mesh links?
Do you use any software to manage your HP switches, and if not, how do you manage settings on them?

Author

Commented:
Are any of the ports which have been going down ones which are directly connected to any access points?

NO   some ports  connected to  PCs some to printers

Have you been tweaking your Aerohive AP configurations recently? Do you have any set to be mesh links?

yes and we called support and they take a look they said nothing to do with Aerohive


Do you use any software to manage your HP switches, and if not, how do you manage settings on them?

we don't have but we bought recently HP IMC

Author

Commented:
now the problem disappeared after we reboot the all network devices in the company

we don't know what the reason

and please update me what type of software or tool we can buy to help us to analyze such problem in the future
Commented:
You bought HP IMC, but I assume it has not been installed and configured yet. I would prioritize that project, because IMC can give you a big picture of all the flows in your network, and if this problem was caused by spanning tree, it is likely to recur, and when it does, IMC will show you a GUI of exactly what is going on with STP.
IMC can do many other things, as well, including keeping every switch's current configuration backed up, so that in the event of a hardware failure, you can be back up and running quickly.
Good luck!

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