Library /sys$common/syshlp/ncphelp.hlb SET, EXECUTOR, MAXIMUM COST number  *Conan The Librarian (sorry for the slow response - running on an old VAX)

 Specifies the maximum total path cost allowed from the local node to
 any node.  The path cost is the sum of the line costs along a path
 between two nodes.  Use as small a number as possible in the range
 of 1 to 1022.  The default is 1022.