range
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... target hosts with the same priority SHOULD be tried in an
order defined by the weight field. The range is 0-65535. This
is a 16 bit unsigned integer ...
... priority. Larger
weights SHOULD be given a proportionately higher probability of
being selected. The range of this number is 0-65535. This is a
16 bit unsigned integer ...
... port on this target host of this service. The range is 0-
65535. This is a 16 bit unsigned integer ...