making ifconfig eth* down in the interface of H3, on H2 and H4 it relevated this in the log:

2018-05-17 16:26:38.462 <TRACE> kernel1 < interface h1_1-eth2 changes link
2018-05-17 16:26:38.462 <TRACE> direct1 < interface h1_1-eth2 changes link
2018-05-17 16:26:38.462 <TRACE> h2_2_h3_3: Link down
2018-05-17 16:26:38.462 <TRACE> h2_2_h3_3: State changed to stop
2018-05-17 16:26:38.462 <TRACE> h2_2_h3_3: BGP session closed
2018-05-17 16:26:38.462 <TRACE> h2_2_h3_3 > removed [sole] 100.1.2.0/24 unicast
2018-05-17 16:26:38.462 <TRACE> kernel1 < removed 100.1.2.0/24 unicast
2018-05-17 16:26:38.462 <TRACE> h2_2_h1_1 < removed 100.1.2.0/24 unicast
2018-05-17 16:26:38.462 <TRACE> h2_2_h3_3: Sending NOTIFICATION(code=6.0)
2018-05-17 16:26:38.463 <TRACE> h2_2_h1_1: Sending UPDATE
2018-05-17 16:26:38.463 <TRACE> h2_2_h3_3: Down

it learn istantly that the link now is down, how can i do this without losing the link?

Mattia

2018-05-17 15:58 GMT+02:00 Mattia Milani <mattia.milani@studenti.unitn.it>:

They may also have crashed (which would be bad). Try running the Birds in debug mode (don't remember the flag, see bird --help) and collecting their exit value.

I used the command bird -c *confFile* -s *socketFile* -D *debugFile*
in the conf file I inserted:

debug protocols all;
debug commands 2;

but i didn't see anything in the debug file i setted, (i need to recompile bird with some option?)
 
Yes. Try it.

now i'm trying this

Mattia