Hi Folks,
Looking at the log messages,
ESWD_ST_CTL_ERROR_IN_EFFECT: ae0.0: storm control in effect on the port
ESWD_ST_CTL_ERROR_IN_EFFECT- This condition occurs when a storm control error condition is detected. Storm control enables the switch to monitor traffic levels and to drop (BUM traffic) broadcast, multicast, and unknown unicast packets when a specified traffic level.
The following link shows a more detailed explanation of the Storm Control feature.
http://www.juniper.net/documentation/en_US/junos13.2/topics/concept/rate -limiting-storm-control-understanding.html
The interface have an specific threshold to trigger this message. By default in the EX devices storm control level is set to 80 percent of the combined broadcast, multicast, and unknown unicast traffic streams.
When the interface received more than the 80% will trigger these messages.
I also found the following KB:
https://kb.juniper.net/InfoCenter/index?page=content&id=KB22064
To sum up, you can change the default Storm control Level configuration for the interface to a higher value than 80%. For example:
[edit ethernet-switching-options]
lab# set storm-control interface ge-1/2/0 level 90 (This change the default from 80% to 90%)
lab# commit
I would like to know if the information above answers your question.