NE40E — clear alarm system config alarm for NE40E device
Issue Description
Alarm Information
Handling Process
· Device model and software version
·
· We checked the alarms regarding the system config alarm :
Memory is abnormal
· Display alarm active
130560/Independent/2020-08-19 10:28:02/-/0xffdc2048/hwSystemConfigError/Major/Start/ OID 1.3.6.1.4.1.2011.5.25.219.2.11.1 The system configuration is incorrect. (EntityTrapFaultID=144133)
· Display device
· 
MPU version information:
MPU(Master) 17 : uptime is 53 days, 3 hours, 20 minutes StartupTime 2020/08/19 10:20:19 SDRAM Memory Size : 2048M bytes FLASH Memory Size : 32M bytes NVRAM Memory Size : 4096K bytes CFCARD Memory Size : 976M bytes CFCARD2 Memory Size : 976M bytes MADA version information PCB Version : CR56MADA REV A FPGA Version : 105 CR5D0MPUB460 version information PCB Version : CR56RPUA REV A EPLD Version : 104 FPGA Version : 019 BootROM Version : 49.0 BootLoad Version : 43.1 Software Version : Version 5.160 RELEASE 0089 MonitorBUS version information: Software Version : 7.66 MPU(Slave) 18 : uptime is 53 days, 3 hours, 12 minutes StartupTime 2020/08/19 10:27:40 SDRAM Memory Size : 3904M bytes FLASH Memory Size : 32M bytes NVRAM Memory Size : 4096K bytes CFCARD Memory Size : 976M bytes CFCARD2 Memory Size : 976M bytes MADA version information PCB Version : CR56MADA REV A FPGA Version : 105 CR5D0MPUB460 version information PCB Version : CR56RPUA REV B EPLD Version : 104 FPGA Version : 019 BootROM Version : 49.0 BootLoad Version : 43.1 Software Version : Version 5.160 RELEASE 0089 MonitorBUS version information: Software Version : 7.66
·
Display elabel [Main_Board_0] /$[ArchivesInfo Version] /$ArchivesInfoVersion=3.0 [Board Properties] BoardType=CR56MPUB4 BarCode=030JTWW0B8000509 Item=03030JTW Description=NetEngine40E,CR56MPUB4,Main Processing Unit B4(Including 1*2G Memory and 1*1G CF Card) Manufactured=2011-08-12 VendorName=Huawei IssueNumber=00 CLEICode= BOM= [Main_Board_1] /$[ArchivesInfo Version] /$ArchivesInfoVersion=3.0 [Board Properties] BoardType=CR56MPUB4 BarCode=030JTWW0B8000509 Item=03030JTW Description=NetEngine40E,CR56MPUB4,Main Processing Unit B4(Including 1*2G Memory and 1*1G CF Card) Manufactured=2011-08-12 VendorName=Huawei IssueNumber=00 CLEICode= BOM=
[Conclusion]
From the previous logs and information we can find the following:
· The alarm indicate that there is memory mismatch in the master and slave MPUs:
The memories of the master and slave MPUs were not consistent Reference
· We checked the MPUs master and slave on slot 17 and 18 we found:
They are the same model with the same item BOM Code >>
CR56MPUB4/ 03030JTW and they are supported by the device Reference
· We checked the memory on each board and found they are not the same size
MPU(Master) 17 : uptime is 53 days, 3 hours, 20 minutes
StartupTime 2020/08/19 10:20:19
SDRAM Memory Size : 2048M bytes
MPU(Slave) 18 : uptime is 53 days, 3 hours, 12 minutes
StartupTime 2020/08/19 10:27:40
SDRAM Memory Size : 3904M bytes
· The memory size of the master SRU/MPU must be the same as that of the slave SRU/MPU on one device. To be specific, one 2 GB memory is installed on both the master and slave SRUs/MPUs, or two 2 GB memories are installed on both the master and slave SRUs/MPUs. Expand the slave SRU/MPU memory first. After the slave SRU/MPU memory is expanded, if the slave SRU/MPU registers and the device is working normally, you can perform a master/slave SRU/MPU switchover and expand the new slave SRU/MPU memory
Reference Here
Root Cause
Solution
The memory size of MPUs must be the same :
· Insert memory of the same size at the two boards