On 03/11/2010 2:28 AM, Joakim Tjernlund wrote:
On Tue, Nov 02, 2010 at 11:00:39AM -0700, Mahlon E. Smith wrote:
... Hello
BIRD currently does not check or use link up/down state. OSPF routers generally check reachability using HELLO packets, not by reported link state, although sometimes this is also implemented. Drawback of HELLO protocol (to check reachability) is that it has some timeout to find out that the neighbor became unreachable. By default, it is ~ 40 seconds, But it is possible to configure it to < 10 seconds (see hello/wait/dead interface options). I think BIRD really should check link state. Changing HELLO < 10 secs isn't going to make it much better and will also increase load and network bandwidth.
Jocke I second this. Verifying an interface's link state should be a pretty easy operation, and as I am planning on using BIRD in production fairly soon, this is a feature I would really appreciate.
-- M