Nil,
 
NA> What if a node only supports BinkP protocol? Probably, a single IBN
NA> record can hold the hostname itself without additional INA flag, but it
NA> would be easier to add a new protocol flag in future.
 
New flags of that kind only serve a purpose if there's software to do something
meaningful with it.
 
 \%/@rd 

--- DB4 - August 7 2020