o  access control violation

    Generated each time that Session Control detects an access
    control violation. The arguments provide information about the
    source and destination.

    Arguments:

    destination End-user specification of the destination account.

    destination Destination account information.
    account

    destination Destination user name.
    user

    node name   Name of the source node.

    nsap        Network address of the source node.
    address

    source      End-user specification at the source node.

 o  backtranslation deletion

    Generated each time that a backward translation name is discarded
    because of an irrecoverable error.

    Arguments:

    name        Deleted name.

    reason      DECdns error that caused the deletion.

 o  bad backtranslation link

    Generated when an attempt to access a backward translation soft
    link results in a clerk exception indicating that some attribute
    in the soft-link chain was improperly configured.

    Arguments:

    name        Name improperly configured.

    reason      Reason for the exception.

 o  dangling link

    Generated each time an attempt to access an attribute of a
    backward translation soft link results in a clerk. Dangling
    exception.

    Argument:

    name        Full name of the soft link.

 o  deleted maintained object

    Generated each time that a tower maintenance entity is discarded
    because of an irrecoverable error.

    Arguments:

    client      Network management name of the user who issued the
                keepmehere call that resulted in the creation of this
                entity.

    creation    Time this entity was created.
    time

    higher      Set of higher towers that was passed in the
    towers      keepmehere that created this entity.

    last        A DECdns error code that indicates the reason for the
    failure     last update failure.
    reason

    last        Time of the last successful update to the DNA$Towers
    successful  attribute.
    update

    last        Time that the last attempt to update the DNA$Towers
    update      attribute completed.
    completed

    last        Time that the last attempt to update the DNA$Towers
    update      attribute was initiated.
    started

    name        Full name of the deleted entity.
    reason      DECdns error that caused the deletion.

    uid         Entity's unique identifier, generated when the entity
                is created.

    update      Generated each time that an attempt to update a
    failures    DNA$Towers attribute fails.

    update      Generated each time that an attempt to update a
    successes   DNA$Towers attribute succeeds.

 o  verification failure

    Generated each time that session control is unable to verify that
    the addresses and protocols of an incoming connection request are
    consistent with the DNA$Towers attribute of the source node name.

    Arguments:

    address     Unverified protocol address sequence.

    node        Full name of the source node.