This object indicates the duration for which the
results of a particular run of linktest is available
in cLLtClientLtResultsTable from the time of
completion of that run of linktest. At the expiry of
this time after the completion of the linktest, the
entries corresponding to the linktest and the
corresponding results are removed from
cLLtClientLinkTestTable and cLLtClientLtResultsTable
respectively.