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;********************************************************************************
;*** File           : sn.pdf
;*** Creation       : Fri Jun 08 13:58:34 CST 2007
;*** XSLT Processor : Apache Software Foundation / http://xml.apache.org/xalan-j / supports XSLT-Ver: 1
;*** Copyright      : (c) Texas Instruments AG, Berlin Germany 2002
;********************************************************************************
;*** Document Type  : Service Access Point Specification
;*** Document Name  : sn
;*** Document No.   : 8441.110.99.006
;*** Document Date  : 2001-10-08
;*** Document Status: BEING_PROCESSED
;*** Document Author: Harald
;********************************************************************************



PRAGMA 	SRC_FILE_TIME 	"Thu Feb 17 14:43:54 2005"
PRAGMA 	LAST_MODIFIED 	"2001-10-08"
PRAGMA 	ID_AND_VERSION 	"8441.110.99.006"



CONST 	MAX_PARAM_NUMBER 	4 	; Maximal number of parameters per compressor unit
CONST 	MAX_COMP_NUMBER 	3 	; Currently there are 3 PCOMP values for V.42bis
CONST 	MAX_ENT_NUMBER 	1 	; There is 1 data compression entity currently and 1 header compression entity.



VALTAB 	VAL_nsapi
VAL 	0 	NSAPI_0 	"escape mechanism for future extensions"
VAL 	1 	NSAPI_1 	"Point-To-Multipoint Multicast information"
VAL 	2 	NSAPI_2 	"reserved for future use"
VAL 	3 	NSAPI_3 	"reserved for future use"
VAL 	4 	NSAPI_4 	"reserved for future use"
VAL 	5 	NSAPI_5 	"dynamically allocated NSAPI value"
VAL 	6 	NSAPI_6 	"dynamically allocated NSAPI value"
VAL 	7 	NSAPI_7 	"dynamically allocated NSAPI value"
VAL 	8 	NSAPI_8 	"dynamically allocated NSAPI value"
VAL 	9 	NSAPI_9 	"dynamically allocated NSAPI value"
VAL 	10 	NSAPI_10 	"dynamically allocated NSAPI value"
VAL 	11 	NSAPI_11 	"dynamically allocated NSAPI value"
VAL 	12 	NSAPI_12 	"dynamically allocated NSAPI value"
VAL 	13 	NSAPI_13 	"dynamically allocated NSAPI value"
VAL 	14 	NSAPI_14 	"dynamically allocated NSAPI value"
VAL 	15 	NSAPI_15 	"dynamically allocated NSAPI value"

VALTAB 	VAL_p_id
VAL 	0x21 	PPP_PID_IP 	"simple ip packet"
VAL 	0x2D 	PPP_PID_CTCP 	"Van Jacobson compressed TCP/IP header"
VAL 	0x2F 	PPP_PID_UTCP 	"Van Jacobson uncompressed TCP/IP header"

VALTAB 	VAL_ppp_hc
VAL 	0 	SN_HC_OFF 	"no header compression"
VAL 	1 	SN_HC_VJ 	"Van Jacobson header compression"

VALTAB 	VAL_reset
VAL 	0 	SN_RESET_NO 	"no reset"
VAL 	1 	SN_RESET_YES 	"reset"

VALTAB 	VAL_dti_direction
VAL 	1 	SN_HOME 	"mapped to HOME from dti.h"
VAL 	0 	SN_NEIGHBOR 	"mapped to NEIGHBOR from dti.h"




VAR 	nsapi 	"network layer service access point identifier" 	B

VAL 	@p_sn - VAL_nsapi@ 	

VAR 	list_len 	"length in octets of whole data" 	S


VAR 	first 	"pointer to  generic data descriptors" 	L


VAR 	p_id 	"protocol identifier" 	B

VAL 	@p_sn - VAL_p_id@ 	

VAR 	l_buf 	"length of content in bit" 	S


VAR 	o_buf 	"offset of content in bit" 	S


VAR 	buf 	"buffer content" 	B


VAR 	reserved_data_ind2 	"reserved octets" 	B


VAR 	reserved_unitdata_ind2 	"reserved octets" 	B


VAR 	reserved_data_req1 	"reserved octets" 	B


VAR 	reserved_data_req3 	"reserved octets" 	B


VAR 	reserved_unitdata_req1 	"reserved octets" 	B


VAR 	reserved_unitdata_req3 	"reserved octets" 	B


VAR 	ref_nsapi 	"ref_nsapi" 	B


VAR 	ref_npdu_num 	"ref_npdu_num" 	S


VAR 	ref_seg_num 	"ref_seg_num" 	B


VAR 	ppp_hc 	"header compression of PPP connection" 	B

VAL 	@p_sn - VAL_ppp_hc@ 	

VAR 	msid 	"max slot identifier" 	B


VAR 	reset 	"reset flag" 	B

VAL 	@p_sn - VAL_reset@ 	

VAR 	octets_uplink 	"octets uplink" 	L


VAR 	octets_downlink 	"octets downlink" 	L


VAR 	packets_uplink 	"packets uplink" 	L


VAR 	packets_downlink 	"packets downlink" 	L


VAR 	dti_linkid 	"DTI link identifier" 	L


VAR 	dti_neighbor 	"DTI neighbor entity name" 	L


VAR 	dti_direction 	"direction of DTI connection" 	B

VAL 	@p_sn - VAL_dti_direction@ 	




COMP 	desc_list2 	 "list of generic data descriptors"
{
 	list_len 	 ; length in octets of whole data
 	first 	 ; pointer to  generic data descriptors
}



COMP 	sdu 	 "service data unit"
{
 	l_buf 	 ; length of content in bit
 	o_buf 	 ; offset of content in bit
 	buf 	[1] 	 ; buffer content
}



COMP 	reserved_data_ind1 	 "to the segment to be confirmed"
{
 	ref_nsapi 	 ; ref_nsapi
 	ref_npdu_num 	 ; ref_npdu_num
 	ref_seg_num 	 ; ref_seg_num
}
TYPEDEF COMP reserved_data_ind1 	reserved_unitdata_ind1 	 "to the segment to be confirmed"
TYPEDEF COMP reserved_data_ind1 	reserved_data_req2 	 "to the segment to be confirmed"
TYPEDEF COMP reserved_data_ind1 	reserved_unitdata_req2 	 "to the segment to be confirmed"






; SN_MODIFICATION_IND 	0x6808
; SN_COUNT_REQ 	0x2808
; SN_COUNT_CNF 	0x6809
; SN_SWITCH_REQ 	0x2809
; SN_SWITCH_CNF 	0x680A



PRIM 	SN_MODIFICATION_IND 	0x6808
{
 	ppp_hc 	 ; header compression of PPP connection
 	msid 	 ; max slot identifier
}






PRIM 	SN_COUNT_REQ 	0x2808
{
 	nsapi 	 ; network layer service access point identifier
 	reset 	 ; shall counters be reset
}






PRIM 	SN_COUNT_CNF 	0x6809
{
 	nsapi 	 ; network layer service access point identifier
 	octets_uplink 	 ; octets uplink
 	octets_downlink 	 ; octets  downlink
 	packets_uplink 	 ; packets uplink
 	packets_downlink 	 ; packets downlink
}






PRIM 	SN_SWITCH_REQ 	0x2809
{
 	nsapi 	 ; network layer service access point identifier
 	dti_linkid 	 ; dti linkid
 	dti_neighbor 	 ; dti neighbor
 	dti_direction 	 ; dti direction
}






PRIM 	SN_SWITCH_CNF 	0x680A
{
 	nsapi 	 ; network layer service access point identifier
}