| Description | The relative priority of the LES. The lower this
number the more priority is given the LES for
servicing the ELAN. Such that a higher priority LES
will supersede operation of the ELAN in the presence
of a lower priority LES.
Note that the LECS will adjust the number entered to
fit into a contiguous numbering space equalling the
number of LESs defined for the particular ELAN. For
example if there is one LES defined for an ELAN then
that LES's priority will always be zero since there
are no other LESs to contend with. Setting that LESs
priority to ten (e.g.) will work but the net result
will be that the priority will still be zero (as will
be verified by consequent retrieval of this objects
value). If a second LES is defined for this ELAN with
a priority of ten (e.g.) the net result would be that
the second LES will have a priority of one since it is
the only other LES for that ELAN and behind in
priority from the first LES. If the second LES were
given a priority of zero at any time then it would
keep the priority of zero and the first LES would
transition to having a priority of one.
Note that defining a new LES with a priority already
in existance by another LES has the effect of giving
the new LES the designated priority and reducing the
priority (numerically increasing) of all LESs equal to
and below it in rank.
Likewise, deleting a LES from this table will cause
LESs below it in priority (numerically greater) to
move up in the table (modifying their priority value
to be one less) to fill in the now empty slot.
In this way a table, with at least one entry, should
always contain entries with priorities including zero
up to the number of entries minus one (0..(n-1)). |