The following generic tspec formats apply to the integrated services data structures and macros:

• The following macros define constraints on the token bucket parameters for both the controlled-load and guaranteed service. These constraints are imposed by the respective service specifications and are not an indication of what minimum or maximum values a RAPI implementation will accept.

  The following macros are defined with values of type float32_t:

  Macro	Usage	Value
  TB_MIN_RATE	Minimum token bucket rate	1 byte per second
  TB_MAX_RATE	Maximum token bucket rate	40 terabytes per second
  TB_MIN_DEPTH	Minimum token bucket depth	1 byte
  TB_MAX_DEPTH	Maximum token bucket depth	250 gigabytes
  TB_MAX_PEAK	Maximum peak rate	Positive infinity, defined as an IEEE single-precision floating-point number with an exponent of all ones (255) and a sign and mantissa of all zeros (see RFC 1832; see Related protocol specifications for information about accessing RFCs)

• Type TB_Tsp_parms_t is defined by typedef as a structure to represent generic Tspec parameters, and has at least the following members:

  Member	Type	Usage
  TB_Tspec_b	float32_t	Token bucket depth in bytes
  TB_Tspec_m	u_int32_t	Minimum policed unit in bytes
  TB_Tspec_M	u_int32_t	Maximum packet size in bytes
  TB_Tspec_p	float32_t	Peak data rate in bytes per second
  TB_Tspec_r	float32_t	Token bucket rate in bytes per second

• Type gen_Tspec_t is defined by typedef as a structure to represent a generic Tspec, and has at least the following members:

  Member	Type	Usage
  gen_Tspec_parms	TB_Tsp_parms_t
  gen_Tspec_parm_hdr	IS_parm_hdr_t	(IS_WKP_TB_TSPEC,)
  gen_Tspec_serv_hdr	IS_serv_hdr_t	(GENERAL_INFO, length)

• The following macros are defined with the values given below:

  Macro	Value
  gtspec_b	gen_Tspec_parms.TB_Tspec_b
  gtspec_flags	gen_Tspec_parm_hdr.isph_flags
  gtspec_len	(sizeof(gen_Tspec_t) - sizeof(IS_serv_hdr_t))
  gtspec_len32b	gen_Tspec_parm_hdr.isph_len32b
  gtspec_m	gen_Tspec_parms.TB_Tspec_m
  gtspec_M	gen_Tspec_parms.TB_Tspec_M
  gtspec_p	gen_Tspec_parms.TB_Tspec_p
  gtspec_parmno	gen_Tspec_parm_hdr.isph_parm_num
  gtspec_r	gen_Tspec_parms.TB_Tspec_r