a786806064
When a floating ip is dissociated with a port, the current connection with the floating ip is still working. This patch will clear the connection state and cut off the connection immediately. Since conntrack -D will return 1, which is not an error code, so add extra_ok_codes argument to execute methods. Change-Id: Ia9bd7ae243a0859dcb97e2fa939f7d16f9c2456c Closes-Bug: 1334926