Shows error counts for the selected DECdns server, including
  the following:

  Incompatible Protocol Errors
  Indicates how many requests received by the selected DECdns
  server from a clerk running an incompatible protocol version.

  A DECdns server can communicate with any clerk running
  the same protocol version, or the version previous to the one
  it is running.  This counter increases by 1 at each occurrence
  of the Incompatible Request  event.

  Authentication Failures
  Indicates how many times a requesting principal failed
  authentication procedures.

  Times Lookup Paths Broken
  Indicates how many broken connections between clearing-
  houses on the selected DECdns server and clearinghouses
  closer to the root exist.  Incoming requests to the selected
  DECdns server that require a downward lookup in the di-
  rectory hierarchy may still succeed, but requests requiring
  lookup in directories closer to the root will fail.  This counter
  increases by 1 at each occurrence of the   Broken Lookup Paths
  event.

  Possible Cycles
  Indicates how many times the selected DECdns server fol-
  lowed a chain and encountered an entry already in the chain.

  For example, a soft link is created that points to a series of
  links that eventually point back to the first link, or a group
  which is a member of itself.  This counter increases by 1 at
  occurrence of the  Possible Cycles  event.

  Crucial Replica Removals Backed Out
  Indicates how many times a user attempted (from the se-
  lected DECdns server) to remove a replica that is crucial to
  the connectivity of a directory hierarchy.  The DECdns server
  background process prevents users from accidentally discon-
  necting lower-level directories from higher-level directories.

  When it detects an attempt to remove a crucial replica, it will
  not execute the command to do so.  This counter increases by
  1 at each occurrence of the  Crucial Replica  event.

  Child Pointer Update Failures
  Indicates how many times the DECdns server background
  process was unable to contact all the clearinghouses where
  a replica of a particular child directory's parent directory is
  stored, and was therefore unable to apply the child updates
  that have occurred since the last skulk.  This counter in-
  creases by 1 at each occurrence of the   Cannot Update Child
  Pointer event.

  Security Failures

  Indicates how many times the     Security Failures  event was
  generated.  This counter increases whenever a DECdns
  server has insufficient access rights to a directory or object
  to perform either a client-requested action or a background
  operation.