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Logical Board Installation Failure Caused by Power Consumption Threshold Crossing of Physical Boards for the OptiX OSN 3500

Publication Date:  2012-07-25 Views:  103 Downloads:  0
Issue Description
Problem reported by Pakistan Telecommunication Company Limited that OptiX OSN 3500 or OptiX OSN 7500 NEs didn’t support multiple data boards on single SDH, alarms appears BD_AT_POWER_LOW and when the logical boards are added to the NE, an error code, indicating that the NE power consumption threshold crossing. According to the information provided by the customer that some time services also got down due to this alarm.
Alarm Information
Appears BD_AT_POWER_LOW at GSCC and when adding logical power alarm appear " Error Code due to low power"
Handling Process
  1. First check high power command enabled on SDH or not ,
Use the : cfg-get-hpenable
  1. If not than enable high power power command,
Use the: cfg-set-hpenable:enable
  1. Remove the boards that are not currently used on the NE
  2. In this case, the maximum power consumption of the NE can be modified temporarily to ensure that the logical board can be normally installed. The maximum power consumption can be temporarily set to 1400. The command is as follows:
Use the: cfg-set-nemaxpower: 1400;
Root Cause
When the total power consumption of the physical boards on the NE or the total power consumption of the logical boards exceeds the power consumption threshold of the NE, the NE reports the corresponding alarm indicating that the power consumption threshold crossing. When the total power consumption of the physical boards on the NE or the total power consumption of the logical boards exceeds the maximum power consumption of the backplane, do not add any new logical board. In this case, if the logical board is added, an error code, indicating that the NE power consumption threshold crossing, is returned.
  1. Use the : cfg-get-powerinfo command to query the maximum power consumption and physical power consumption. The example is as follows:
POWER-INFO
BID   LOG-BDYPE     ACTIVE-STATE  LOG-POWER  PHY-BDYPE PHY-POWER     
        1     ssn2egs2      active        43         ssn2egs2      43            
        2     ssn1ems4      active        75         ssn1ems4      75            
        3     ssn2egs2      active        43         ssn2egs2      43            
        4     ssn1sf64      active        23         ssn1sf64      23            
        5     ssn1sf64      active        23         ssn1sf64      23            
        6     ssn1sf64      active        23         ssn1sf64      23            
        7     ssn1sf64      active        23         ssn1sf64      23            
        8     ssn1sld64     active        41         ssn1sld64     41            
        9     sst1ixcsa     active        140        sst1ixcsa     140           
        10    sst1ixcsa     active        140        sst1ixcsa     140           
        11    ssn1sld64     active        41         ssn1sld64     41            
        12    ssn1sf64      active        23         ssn1sf64      23            
        13    ssn1sf64      active        23         ssn1sf64      23            
        14    ssn1sf64      active        23         ssn1sf64      23            
        254   bdtype null   0xff          1066       bdtype null   1066          
        255   bdtype null   0xff          1100       bdtype null   1000
          
  Total records :87
Line 254 (second to the last line) indicates the logical power consumption and physical power consumption of the existing NE. Line 255 (last line) indicates the maximum power consumption and power consumption threshold of the backplane of the NE.
Suggestions

For permanent solution upgrade NE software version V100R008C02SPC500 (5.21.18.55) should be installed at NE to remove this power problem.


END