I have found an issue in Bird 2.0.8.

If the tcp connection is not completely, then a new bgp conntection is success.

When the hold timer of the first tcp connection is expired, it will close both of the connection.

             router1                                        router2

           192.168.1.100                      192.168.1.200

first        <----------------------------------------(tcp syn)

                -----------------------------------------> (tcp syn ack)

               <---------------------------------------------(tcp ack, open)

second   <---------------------------------------------> (tcp )

               <---------------------------------------------> (bgp established)

first holdtime expire

               <---------------------------------------------   (bgp close first)     

              <---------------------------------------------   (bgp close second)     

 The full packet is in the attachment, is this a correct operation ?