The second peak value of the OLT upstream port is large on U2000

Hi friend.

1. Second peak query principle analysis:

• Chip processing principle: After the system is started, the LSW chip starts a detection task to periodically obtain the second-level peak value. The LSW chip compares the value with the value obtained last time and uses the larger value.

• The software obtains the second peak. The default value on the software is 0x7FFFFFFF, which indicates an invalid value. If the value read from the slave chip is not 0x7FFFFFFF, the value read from the slave chip is returned to the NMS. Otherwise, 0x7FFFFFFFF is returned to the NMS.

• Read-clear processing is adopted for second peak reading: that is, read once and clear once.

• The principles of the MA5800 and 5680T are the same.

2. Triggering scenario analysis on the live network: When a statistics instance is created for the first time, the chip data is never cleared. Therefore, historical data may be stored. Therefore, excessively large values are read.

3. Based on the preceding analysis, the value of second peak monitoring collected by the NMS for the first time is relatively large. Actually, the value is historical data on the chip has no reference value and does not affect services.

Have a good day!