o  clock settings
    Specifies the number of times that the node clock has been set
    nonmonotonically (abruptly).
 o  creation time
    Specifies the time at which the DECdts entity was created and the
    counters were initialized.
 o  different epochs detected
    Specifies the number of times that the node received time response
    messages from servers or clerks that had epoch numbers different
    from its own.
 o  disable directives completed
    Specifies the number of times that DECdts has been disabled.
 o  enable directives completed
    Specifies the number of times that DECdts has been enabled.
 o  epoch changes completed
    Specifies the number of times that the server's epoch has changed.
 o  insufficient resources detected
    Specifies the number of times that the node has been unable to
    allocate virtual memory.
 o  invalid messages detected
    Specifies the number of times that the local node failed to
    process a received message that had an unknown message type or
    incorrect length.
 o  local times not intersecting
    Specifies the number of times that the node's time interval failed
    to intersect with the computed interval of the servers.
 o  no global servers detected
    Specifies the number of times that the courier server could not
    contact any global servers.
 o  protocol mismatches detected
    Specifies the number of times that the local node failed to
    process a received message containing an incompatible protocol
    version.
 o  server times not intersecting
    Specifies the number of times that a server has detected faulty
    servers (other than itself).
 o  servers not responding
    Specifies the number of times that the courier server could not
    contact a specific global server.
 o  synchronizations completed
    Specifies the number of times that the node has successfully
    synchronized.
 o  system errors detected
    Specifies the number of times a DECdts operation has detected a
    system error.
 o  time provider failures detected
    Specifies the number of times that the external time-provider
    signaled a failure or the node was unable to access the time-
    provider.
 o  time representation mismatches detected
    Specifies the number of times that the local node failed to
    process a received message containing an incompatible timestamp
    format.
 o  too few servers detected
    Specifies the number of times that a node failed to synchronize
    because it could not contact the required minimum number of
    servers.
 o  too many servers detected
    Specifies the number of times that the responses to a
    synchronization request overflowed the assigned system buffer.
 o  updates initiated
    Specifies the number of times that a server has attempted to
    update its clock.