ethernet link down

Hi mates! Until recently, the automatic speed detection of the NIC was correct - 1000Mbit. I have been observing the following behavior for several days: Oct 27 14:30:00 tank kernel: igb0: link state changed to DOWN Oct 27 14:30:03 tank kernel: igb0: link state changed to UP Oct 27 14:30:47 tank...

Hello Everyone: I am trying to use HAST with UCARP to archive storage/service level HA. If I stop UCARP service or shutdown any node,the primary/MASTER and secondary/BACKUP could switch over correctly. However,if I disconnect the Ethernet,the kernel detect link down,but the UCARP MASTER...