Hello Bruno,
There are few KBs available which talk about these topics and would be a good referal in this case.
https://kb.juniper.net/InfoCenter/index?page=content&id=KB6346
https://kb.juniper.net/InfoCenter/index?page=content&id=KB14290
https://kb.juniper.net/InfoCenter/index?page=content&id=KB4586
https://kb.juniper.net/InfoCenter/index?page=content&id=KB7952
Regards
Vatsa