This object indicates the numerically lowest available index within this entity, which may be used for the value of siteID in the creation of a new entry in the siteTable. An index is considered available if the index value falls within the range of 1 to siteMaxEntries value and is not being used to index an existing entry in the siteTable contained within this entity. This value should only be considered a guideline for management creation of siteEntries, there is no requirement on management to create entries based upon this index value.