Basically configured bird as below

 

protocol device  {

            scan time 10;

}

 

protocol kernel {

         scan time 10;

          learn;

          ipv4  {

                       export filter XXXX;

          }

}

 

bgp and bfd are established, everything is fine.

But only have some annoying log:

 

Every 10 seconds to print below bird log, assuming this is caused by kernel protocol scan time 10.  But why Netlink : File exists, it would write to kernel ???

KRT:     Received route xx.yy.zz.0/24 with strange next-hop 10.0.0.1

Netlink: File exists

 

Chris