Library /sys$common/syshlp/ncphelp.hlb SET, LINE, RING PURGER ENABLE option  *Conan The Librarian (sorry for the slow response - running on an old VAX)

 Applies only to FDDI lines.  The option values are:

      ON   Participate in the Ring Purger election and,
           if elected, perform the Ring Purger function.
           This is the default.

      OFF  Do not participate in the Ring Purger election.

 This parameter is to allow operation when stations on your ring do not
 conform to the FDDI specification.  Except for that case, it should be
 left ON for improved ring reliability.