[Samba] Promoting Samba BDC to PDC

[pavan]

Hi All,
 
         Has any one got an idea of how to make clients automatically 
find the BDC when the PDC is stopped. Both PDC and BDC are running by 
Samba authenticating again a LDAPSAM backend replicated on both the PDC 
with master LDAP database and BDC with replicated LDAP database. But 
when I stop PDC the clients are not detecting the BDC broadcast. I can 
see that the replication is of the OpenLDAP data is perfect.

Any idea of where i may be wrong??

thankx in advance.

pavan.