?? LEFT := 1, RIGHT := 110 ??

  TYPE
    nlt$xe_error_number = 0 .. 65535,
    nlt$xe_error_parameter = 0 .. 65535;



  { NAM/VE: XNS Error Protocol -- Error Number Constants }

  CONST
    nlc$xe_unspec_at_destination = 0,
    nlc$xe_checksum_at_destination = 1,
    nlc$xe_unknown_sap = 2,
    nlc$xe_destination_resources = 3,
    nlc$xe_unspec_before_destinat = 512,
    nlc$xe_cannot_reach_destination = 514,
    nlc$xe_packet_lifetime_expired = 515,
    nlc$xe_packet_too_large = 516;
