华为的2100交换机上面怎么设置不了ip
<Quidway>sys
Enter system view, return to user view with Ctrl+Z.
[Quidway]interface?
   interface
[Quidway]interface ?
  Aux             Aux interface
  Ethernet        Ethernet interface
  LoopBack        LoopBack interface
  NULL            NULL interface
  Vlan-interface  VLAN interface
[Quidway]interface vlan
[Quidway]interface Vlan-interface 1
[Quidway-Vlan-interface1]ip address 192.168.1.2
[Quidway-Vlan-interface1]ip address 192.168.1.2 255.255.255.0
                         ^
% Unrecognized command found at '^' position.
[Quidway-Vlan-interface1]
错在那里呀？请指教！！！