OK, so now I tested s5700-10p-li-v200r008c00spc500
INT Client GE0/0/1 and Server GE0/0/2 look like this (both are in VLAN1):
interface GigabitEthernet0/0/1
port link-type access
stp edged-port enable
port link-flap protection enable
storm-control unicast min-rate 500 max-rate 1500
storm-control action error-down
storm-control enable log
As soon as I start a file copy (ISO-file) storm-control kicks in and kills both ports, it logs everything.
I have connected WIRESHARK to GE0/0/7 to a passive NIC, just to see what happens. I see some (only 4-5) SMB-Packets that get splattered on GE0/0/7, they should not be there. Seems to happen shortly AFTER storm-control kicks in. But as I said: 4-5 packets, nothing big.
I am really wondering...the nics btw. are Intel Pro 1000 CT, so not the worst NICs I think...