Quidway S3552_28 power switching between the RPS and the main power causing reboot problem
I Precaution Description:
When S3528G/P、S3552G/P、S3552F switch running R0029/R0029P01/R0030 version, and connect with the RPS and the main power at the same time, if the main power changes to be down or up, the switch will reboot abnormally, which may cause the interruption of the operation. The redundancy of the power doesn’t take effect at this time..
After the rebooting, you can see the exception information through the hidden command:
[Quidway-hidecmd]dis exception 5 ver
===== exception info (no: 0 idx: 11) =====
Exception Number: 0x300
Exception Name: DA
Exception Instruction: 0x000DD480
Exception Slot: 0
Exception Task: INFO (TID: 12)
Exception Time: 2007-03-02 19:21:00
II Cause Analysis:
When the main power changes to be down or up, the info-center will print out “trap” and “log” warning message, and this triggers a BUG in the software of this module and causes the system to reboot.
III Solution:
There are two workaround:
1) Turn off the info-center using the following command:
[Quidway] undo info-center enable
2) Downgrade the version to R0025P07.
