6250-P24 throuphut problem

[girgi]

Hello,
I have 6 6250-P24 switch in stack. I have uplink with 4 Gigabit cable in Aggrigation.
this switches are connected to the IP cameras. traffic from one camera average is 1-2Mbps.

this is not VERY heavy traffic, but I have problem.
everything is working ok, but in 4-5 days traffic from camera has problems, when I try to ping camera, there is packet loose 20-30%. I thought that maybe it was camera problem, I connect to the another switch (not from this stack) ping and traffic were OK. When I restart all switches in stack, problem disappeared for few days.
after 4-5 days problem start again.

maybe there is some stack problem?! I think to remove stack and install standalone switches...

[girgi]

Helloo... any opinion??

when I have problem with throuphut, on main switch I have 90% and more CPU usage...
I have 6.6.1 OS, I try to upgrade it to 6.6.3, but when I put image files in switch by FTP, size is different. I also try to download from switch this new image, but same is incorrect with a original image. I think if I upgrade, switch may be corrupted. I use filezila ftp client..

Does anyone upgrade this switch?

[silvio]

Have you solved your problem meantime? I think you should update your switches to the newest image and miniboot/uboot/fpga. A lot of problems are solved...
regards
Silvio

[girgi]

Thank you for your replayes,
after upgrade CPU usage problem was disepieard. not it is avarage 10%.