EAGLE : STP Not Including "CUG-Checkinfo" Details In SRI Response

Asset ID:	1-71-2379539.1
Update Date:	2018-03-28
Keywords:

Solution Type Technical Instruction Sure

Solution 2379539.1 : EAGLE : STP Not Including "CUG-Checkinfo" Details In SRI Response

Applies to:

Oracle Communications EAGLE (Software) - Version EAGLE 46.3 and later
Tekelec

Goal

EAGLE STP is not sending CUG-Checkinfo details when sending response to SRI (Send Routing Information) Message.

Solution

From the shared traces, we can see that in the incoming message i.e. SRI message, CUG-CheckInfo details is there in MAP Layer, whereas when STP is sending the SRI Response, it is not including that CUG-CheckInfo. We can see from the GSMOPTS table, parameter encodecug is turned OFF, it needs to be turned ON if you want STP to send CUG-CheckInfo details in SRI Response.

> rtrv-gsmopts

eaglestp 18-03-27 15:25:45 IST EAGLE 46.3.0.0.1-68.27.0
  rtrv-gsmopts
  Command entered at terminal #24.
;

Command Accepted - Processing
eaglestp 18-03-27 15:25:45 IST EAGLE 46.3.0.0.1-68.27.0
  GSM OPTIONS
  ----------------------------
  MULTCC = NONE MULTCC = NONE
  MULTCC = NONE MULTCC = NONE
  MULTCC = NONE MULTCC = NONE
  MULTCC = NONE MULTCC = NONE
  MULTCC = NONE MULTCC = NONE
  DEFMAPVR = 1

  DEFMCC = 404 DEFMNC = NONE
  CCNC = NONE MCCMNC = NONE
  CCNC = NONE MCCMNC = NONE
  CCNC = NONE MCCMNC = NONE
  CCNC = NONE MCCMNC = NONE
  CCNC = NONE MCCMNC = NONE
  CCNC = NONE MCCMNC = NONE
  CCNC = NONE MCCMNC = NONE
  CCNC = NONE MCCMNC = NONE
  CCNC = NONE MCCMNC = NONE
  CCNC = NONE MCCMNC = NONE

  SRIDN = TCAP SRIDNNOTFOUND = GTT
  CRPTT = NONE SRISMGTTRTG = ON
  MSRNDIG = RN MSRNNAI = 2
  MSRNNP = 1 MSISDNTRUNC = 0
  SRFADDR = xxxxxxxxxx SRFNAI = 4
  SRFNP = 1 MSRNLEN = 30

  SERVERPFX = NONE GSM2IS41 = NONE
  MIGRPFX = SINGLE IS412GSM = NONE

  SPORTTYPE = NONE DFLTRN = NONE

  EIRGRSP = OFF EIRRSPTYPE = TYPE1
  EIRIMSICHK = OFF EIRIMSISCRN = OFF
  EIRLOGWL = OFF EIRDFLTIMSISCRN = OFF
  EIRDFLTIMSILKUP = RANGE EIRDFLTIMSIRESP = WHITELIST

  ENCODECUG = OFF ENCODENPS = ON
  ENCDNPSPTNONE = OFF ENCDNPSDNNOTFOUND= OFF

  SRIRDCTENT = GRN

  G-Flex MLR OPTIONS :
  GFLEXMAPLAYERRTG = NONE

  REGSS = OFF ACTSS = OFF DACTSS = OFF
  INTSS = OFF AUTHFAILRPT = OFF RSTDATA = OFF
  PROCUNSTRQT = OFF RDYFORSM = OFF PURGMOBSS = OFF
  SRILOC = OFF

;
Command Executed

You can refer the G-PORT Guide : https://docs.oracle.com/cd/E76234_01/docs.463/E72197_rev_1.pdf Page 19 Include Optional CUG Parameter in SRI Ack Messages as per which :

Include Optional CUG Parameter in SRI Ack Messages
The Include Optional CUG Parameter in SRI Ack Messages functionality allows an existing Closed User Group-CheckInfo (CUG-CheckInfo) parameter in an incoming SRI message to be included in the outgoing SRI Ack message.The Include Optional CUG Parameter in SRI Ack Messages functionality is controlled by the encodecug option of the chg-gsmopts command off and on parameters. The encodecug option of the chg-gsmopts off/on parameter can be changed only if the G-Port or IGM feature is enabled. The CUG-CheckInfo parameter in an incoming SRI message is copied in the original sequence to the outgoing SRI Ack message when these conditions are met:
• The encodecug option of the chg-gsmopts command is set to on.
• The CUG-CheckInfo parameter is present in an incoming SRI message.
• The CUG-CheckInfo parameter in an incoming SRI message is encoded in definite length format that is less than or equal to 30 bytes.
If the three conditions descibed above are met, the original CUG-CheckInfo sequence from the incoming SRI message is copied into the SRI Ack message. If encoded in the SRI Ack message, the CUG-CheckInfo parameter is located after the MSRN (Tag = 0x04) and before the MSISDN (Tag = 0x8C) or NPS parameter (Tag = 0x8D), if either MSISDN or NPS parameter is present. The CUG-CheckInfo parameter in an SRI Ack message uses Tag = 0xA3.
If the CUG-CheckInfo parameter is greater than 30 bytes and all other conditions for encoding are met, then only the CUG-Interlock and CUG-OutgoingAccess parameters are copied from an incoming SRI message to the outgoing SRI Ack message. The ExtensionContainer is omitted. When the encodecug option is set to off, the CUG-CheckInfo parameter is not encoded in the SRI Ack message.
If the encodecug option is set to on but the CUG-CheckInfo parameter in an incoming SRI message uses an indefinte length format, the CUG-CheckInfo parameter is not encoded in the SRI Ack message.

Execute the following command to turn it ON:

chg-gsmopts:on=encodecug

You can refer the Command Manual Section : https://docs.oracle.com/cd/E76234_01/docs.463/E72170_rev_1.pdf Page 293, chg-gsmopts command

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