Certain NCL commands, such as show, can include one or more
    attribute specifiers.

    You can specify one or several attribute groups, separated by
    commas, in a show command. If you specify all, this is equivalent
    to specifying all the attribute groups that are legal for a
    command.  The common attribute group names are:

    o  all [attributes]

    o  all characteristics

    o  all counters

    o  all identifiers  (the default if no attribute group
       is specified)

    o  all status

    See the individual show command descriptions to see which
    attribute groups are legal for each command.

1  –  Characteristics

    Characteristics describe the operating parameters of an entity
    as they are currently defined. You can modify the value of
    some characteristics by using the set, add, or remove command.
    Some characteristics have read-only values; their values are set
    by software and cannot be altered.

    Each entity section gives complete information about that
    entity's characteristics, if any, and explains if and how they
    can be modified.

2  –  Counters

    Counters record the number of times the entity performed a
    particular operation or the number of times a certain condition
    or event has occurred since the entity was created. In some
    cases, a counter counts the number of times a similarly named
    event has occurred. Counter values are dynamically maintained by
    the system and cannot be reset by the system manager.

3  –  Identifiers

    In most cases, an entity has one identifier: the simple name that
    is assigned to it when it is created. This identifier is a unique
    instance name within the entity class and cannot be modified
    except by deleting the current entity and re-creating it with
    a new name. See specific entity description sections for more
    information on entities that have multiple identifiers.

4  –  Status

    Status attributes record current conditions of the entity, such
    as its state. Usually status attributes are dynamically set by
    the system to reflect current conditions set up by different
    operations. You can display current status values, but you cannot
    directly modify them. However, certain network management actions
    (such as enabling or disabling an entity) may alter the values of
    status attributes.