I configured ospf on vyos.
vyos#1 is DR. (priority 100)
vyos#2 is BDR. (priority 10)
vyos#3 and #4 are not DR and BDR.
In this case, when I poweroff or disabled IF, these vyos flush routing table and doesn’t update there routing table.
Once BDR comes up, these router update routing table again.
But in the case there is only DR(there are no BDR), these router work normal.
#I checked it with VyOS1.1.7 and 1.1.8 .
In cisco case, this situation isn’t observed.
It seems bugs.