Persistent Learning

Juniper persistent learning can be strange, FYI. I would say the easiest way to get notified would be using a log parser that does email notifications, like Splunk or Graylog.

FYI, if it's not something that gets responded to same day DO NOT do drop-and-log option. Apparently there is some internal limit on how many times it can do this option before it shuts down the VLAN on the entire switch. Took ours a few month to fail this way, but eventually it was a huge deal and took over a day to even figure it out.

Please provide some information about what type of notifications you would like to receive upon mac limit being exceeded?

There is a lot of flexibility in Junos. An example would be to create an event policy that triggers on-box Python code to invoke a webhook.

root@lab# show event-options
policy l2ald-mac-limit-exceeded-if {
events l2ald_mac_limit_exceeded_if;
then {
event-scriptl2ald-mac-limit-exceeded-if_handler.py;
}
}