help!HUAWEI S9306's Port Name is one less

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Switch Name Switch Hostname ED IP Address ED MAC Address Vendor Name Port Number** Port Name VLAN ID VLAN Name Last Scan Date Count

oco-as01(1)-s9306 10.***.***.* 00:0C:29:F3:84:00 Vmware, Inc. 12 GigabitEthernet3/0/9 N/A N/A 2014-08-11 14:34:02 1
oco-as01(1)-s9306 10.***.***.* 00:1D:09:27:56:D8 Dell Inc 14 GigabitEthernet3/0/11 N/A N/A 2014-08-11 14:34:02

i'm found GigabitEthernet3/0/9 ->GigabitEthernet3/0/10
GigabitEthernet3/0/11->GigabitEthernet3/0/12