How to check Board:
<SVGGSN01>display device
Device status:
Slot # Type Online Register Status Primary PortType
--------------------------------------
1 LPU Present Registered NormalNA NULL
2 LPU Present Registered NormalNA NULL
7 SPU Present Registered Normal Slave NULL
8 SPU Present Registered NormalMaster NULL
17 MPU Present NA NormalMaster NULL
18 MPU Present Registered Normal Slave NULL
21 SFU Present Registered NormalNA NULL
22 SFU Present Registered Normal NA NULL
25 PWR Present NA NormalNA NULL
26 PWR Present NA NormalNA NULL
27 FAN Present Registered Normal NA NULL

28 FAN Present Registered Normal NA NULL

mainly status indicate boards current mode