U2000 version --- U2000 V100R001C00.
There was a bug in the code that the SDH service module used to process ASON cross-connection addition and deletion notifications. Due to the frequent rerouting on the network of Vodafone in India, many ASON cross-connection addition and deletion notifications were reported, which accelerated memory leak. As a result, scheduled performance data collection tasks failed to obtain sufficient memory resources and core dumps occurred on the SDH NE management process.
Core file was getting generated and it was occupying memory space to 90%.
Install the U2000 V100R001C00CP0311.
Memory leak occurred when the code processed the reported ASON cross-connection addition and deletion notifications.