In my company we are using 2 new cisco 48-port switches type slm 2048.
The problem: Several ports didn't work sometimes. We had 2 cisco switches (200 series) before with the same problem.
Restarting the switch doesn't fix it at all - only working ports are changing.
They're getting no ip over dhcp for example - they also couldn't communicate if I give them a static address to the network interface.
Has anybody a clue what can be the reason for that problem?