A.Show log检查板卡无法正常加电的原因B.检查电源功率是否满足C.重插拔Powerdown板卡D.更换槽位重插拔
A.show hardwareB.show buf input-C.show control tofab qD.show gsr chas
A.2,3B.2,4C.2,5D.3,4