TIPC_PUBLISHED event being received twice for the same app
 

In our system, an app A registers for the topology service provided by TIPC. It sends subscriptions for port names using TIPC_SUB_PORTS as the filter.
The topology service will send a TIPC_PUBLISHED event whenever the APP B that has this port name comes up.
The problem is we are getting multiple TIPC_PUBLISHED messages for the same app.
I went through the TIPC programming guide and figured thet the name subscription should be TIPC_SUB_SERVICE , this will ensure only one message per port.
"The value TIPC_SUB_PORTS causes the topology service to generate a
TIPC_PUBLISHED event for each port name or port name sequence it finds that
overlaps the specified port name sequence"
http://tipc.sourceforge.net/doc/Programmers_Guide.txt

I changed the subscription to TIPC_SUB_SERVICE but still see the same problem. Any idea what could be wrong?

Is there no TIPC expert on this forum? Why does linux have things which noone is aware of.