I main problem was with cisco 2900 xl catalyst switch. Without it net works fast.
So, replacing it soon or debugging what is wrong with that device. thanks to all people who helped. -- Eero - To unsubscribe from this list: send the line "unsubscribe linux-net" in the body of a message to [EMAIL PROTECTED] More majordomo info at http://vger.kernel.org/majordomo-info.html
