Library /sys$common/syshlp/nclhelp.hlb SNA Peer Server Module, SDLC, delete  *Conan The Librarian (sorry for the slow response - running on an old VAX)

   delete sdlc

   The delete sdlc command deletes the single SDLC instance. You cannot
   delete the SDLC entity while subentities (Links, Stations) exist.

   Ex,   ncl> delete sdlc