I've a C2960 interconnected with a Siemens X208. I want to fixe the mode in 100Full on the both side,but when I do that, port state remains down and no errors appears on the cisco.

C2960 Siemens Results

100full Auto Siemens 100Half

Auto Auto 100Full /2side

Auto 100Full Down

100Full 100Full Down

Config Cisco

interface FastEthernet0/4

description /// PORT VLAN 11 - VDL 2 ///

switchport access vlan 11

switchport mode access

spanning-tree portfast

I think the problem is on the X208 but if somebody have an idea ...