请教各位老大一个问题...

CISCO3660在启动时反复出现如下信息：

1w3d: %CONTROLLER-5-UPDOWN: Controller E1 2/0, changed state to down 1w3d: %LINK-5-CHANGED: Interface Serial2/0:0, changed state to reset 1w3d: %OSPF-5-ADJCHG: Process 100, Nbr 9.41.208.222 on Serial2/0:0 from FULL to DOWN, Neighbor Down: Interface down or detached 1w3d: %LINEPROTO-5-UPDOWN: Line protocol on Interface Serial2/0:0, changed state to down 1w3d: %CONTROLLER-5-UPDOWN: Controller E1 2/0, changed state to up 1w3d: %LINK-3-UPDOWN: Interface Serial2/0:0, changed state to up 1w3d: %LINEPROTO-5-UPDOWN: Line protocol on Interface Serial2/0:0, changed state to up 1w3d: %OSPF-5-ADJCHG: Process 100, Nbr 9.41.208.222 on Serial2/0:0 from LOADING to FULL, Loading Done

请各位老大帮忙看一下是怎么回事啊！！谢谢