Hi all, We have 2 bird 2.0.7 instances rpm package running on vmware with MTU 9000 The only issue I cannot find is why they sessions are flapping: 3w0d: %OSPF-5-ADJCHG: Process 1, Nbr 10.200.2.126 on TenGigabitEthernet0/2/0 from LOADING to FULL, Loading Done 3w0d: %OSPF-5-ADJCHG: Process 1, Nbr 10.200.2.125 on TenGigabitEthernet0/2/0 from LOADING to FULL, Loading Done 3w0d: %OSPF-5-ADJCHG: Process 1, Nbr 10.200.2.126 on TenGigabitEthernet0/2/0 from LOADING to FULL, Loading Done 3w0d: %OSPF-5-ADJCHG: Process 1, Nbr 10.200.2.125 on TenGigabitEthernet0/2/0 from LOADING to FULL, Loading Done 3w0d: %OSPF-5-ADJCHG: Process 1, Nbr 10.200.2.126 on TenGigabitEthernet0/2/0 from LOADING to FULL, Loading Done 3w0d: %OSPF-5-ADJCHG: Process 1, Nbr 10.200.2.125 on TenGigabitEthernet0/2/0 from LOADING to FULL, Loading Done 3w0d: %OSPF-5-ADJCHG: Process 1, Nbr 10.200.2.126 on TenGigabitEthernet0/2/0 from LOADING to FULL, Loading Done Below the relevant confi: 10.200.2.126 protocol ospf OSPF37697 { ipv4 { import none; export none; }; rfc1583compat yes; area 0 { networks {10.200.2.0/25;}; stub no; interface "*" { hello 10; dead 40; #dead count 100; retransmit 5; type ptmp; #real broadcast yes; authentication simple; password "Maputo12"; }; }; }