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Issue Description【 ProblemSu mm ary 】 The SRUA main control board of NE40E-4 cannot been registered【 ProblemDetails 】
<NE40E> displaydevice
NE40E \' sDevicestatus.
Slots The Type Online Register Status Primary
,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,
1 LPU Present Registered Normal NA
2 LPU Present Registered Normal NA
9 MPU Present Unregistered Abnormal Slave
10 MPU Present NA Normal Master
11 SFU Present Registered Normal NA
12 SFU Present Registered Normal NA
13 SFU Present Registered Normal NA
14 SFU Present Registered Normal NA
16 CLK Present Registered Normal Master
17 PWR Present Registered Normal NA
18 PWR Present Registered Normal NA
19 FAN Present Registered Normal NA
Handling ProcessAfter we collecting debugging information through the serial port, we can find the Lanswitch malfunction as follows:
The battery testing..............................pass!
The bridge DMA testing...........................pass!
The nvram data bus testing.......................pass!
The nvram address bus testing....................pass!
The nvram unit testing...........................pass!
The eeprom simple testing........................pass!
The TBC memory testing...........................pass!
The TBC loopback testing.........................pass!
The Lanswitch chip BIST testing..................pass.
The Lanswitch chip switch table testing..........pass.
The Lanswitch chip packet buffer testing.........pass.
The Ethernet port MAC internal loopback test fail.
The Lanswitch chip MAC internal loopback testing. Fail.
The Ethernet port 6 MAC internal loopback test fail.
Root Cause
SolutionReplace the faulty main control board.
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