DB Minutes

The routing wg posed the question "how will a conflict between two
guardians be resolved?". To my recollection this was discussed
briefly in the DB WG but not minuted (my fault). 

I propose to add the text below to the DB minutes:

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In case two or more guardians want to set an attribute
which can only have one value, the current state of the
attribute will not be changed and all guardians concerned will
be notified.

Example:

The aut-sys attribute of network 193.193.193.0 in the database is AS193.
AS4711 adds this network to his guardian file. At the next database cleanup
all guardian files will be examined.  

	1) if the AS193 guardian file still contains 193.193.193.0 a conflict
           exists and the cuurent database state prevails: AS193 will remain

	2) if 193.193.193.0 has been removed from the AS193 guardian file
           no confluict exists and AS193 will be replaced by AS193

Similarly the aut-sys attribute will remain undefined if it is undefined
and two guardians add it simultaneouly.

Since the cleanup runs every 24 hours guardians involved in a change should
coordinate their changes such that they are done in the same 24h period.

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clear?