We have one line card on MX480 chassis. we have lost all connections twice through the router today.
looking at the router physically when it drops services, i notice the while FPC card is off. it comes up after roughly ~2 minutes.
when its back online, all services resume. checking the FCP uptime shows that it rebooted 5 minutes ago.
we have recently upgraded to Junos: 17.3R3-S2.2 from 15.1
we have been having "high RE CPU untilization" since the upgrade. i had a post on this forum about this high CPU untilization and it was mentioed that the routing-engine RE-S-1300's last supported junos version is 14.2
This is the 2nd "behavior" we noticing since the upgrade, first was high CPU utilization even though on the cli it shows 86% of CPU is idle.
I have attached log messges captured duing the 2 FPC reboots. the reboots are 2 hrs apart.