c     Goes with rev 1.96c or later; edited  1:00 PM  Thu., 12  Jun., 1986
      integer*2 dbCB(144)                 ! Debug-file control-block
      integer*2 dbLv                      ! Debugging level
      integer*2 states,packets,all        ! debugging level (binary) codes
      parameter (states  = 1)
      parameter (packets = 2)
      parameter (all     = 3)
      character dbNm*64                   ! Debugging log-file name
      common /kerdbg/ dbCB,dbLv,dbNm