During PAWS session in Paris IETF, there were a lot of questions/discussions on 
'Discovery' of Database. It was not clear to me except if we are talking about 
"Database Server Discovery", in particular, the domain name or the IP address 
of the 'Server" that is hosting the database. OTH, I felt that some folks may 
have different views and they would possibly like to see more features than 
just discovering the domain name or IP address of the "Database Server".



In some offline discussions, I was told that it may be similar to what LOST 
(RFC 5222) has defined. I read the LOST protocol and associated architecture 
and my current understanding is that the LOST use case is different than what 
we are trying to achieve via PAWS. Here is my understanding of the operating 
model of PAWS interface (when defined):



-"Fixed/Mode II WSD" (per figure 1,<draft-das-paws-protocol-01>) can only query 
the database



-The manufacturer of the "Fixed/Mode II WSD" may be different than 
owner/operator of this device



-"Fixed/Mode II WSD" is certified by the regulatory body of the region that 
they serve



- Either the "Fixed/Mode II WSD" device operator or the device vendor has an 
a-priori relationship with one or more covering database administrators. This 
relationship

 is utilized to either configure or enable the discovery of the proper database 
to contact in the current location





I would like to know the group's view of the above model. To me, finding the 
emergency services or restaurant information near my location is different than 
getting to know a server that can provide me with channel/frequency/power and 
other information in the location where "Fixed/Mode II WSD" is situated. In 
addition, emergency services do not require a subscription and the service is 
mandated by the Government/regulatory bodies. Some may argue that 'White Space' 
service may be free as well, but to my understanding it is not quite the 
similar model as emergency services.





I hope with this thread we can clarify/understand the discovery issue.



Regards,



_Subir



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