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

 Applies only to broadcast circuits.  It specifies the maximum
 number of routers allowed by the Routing layer on this circuit.
 Use a number in the range 1 to 33.  The default value is 33.