Cisco Cisco Packet Data Interworking Function (PDIF)
ePDG CDR Field Descriptions
▀ CDR Fields
▄ GTPP Interface Administration and Reference, StarOS Release 18
104
Record Sequence Number
A running sequence number with range 1.. 4294967296 used to link partial records generated by the ePDG for a specific IP-
CAN bearer context (characterized with the same Charging ID and P-GW address). This field is not present if the first record
is also the final record.
CAN bearer context (characterized with the same Charging ID and P-GW address). This field is not present if the first record
is also the final record.
Format
Integer
Length
1-5 bytes
Record Type
This field identifies the type of the record.
ePDG-CDR(ePDGRECORD) 96 (0x60)
Format
Integer
Length
1 byte
Served IMSI
This field contains the International Mobile Subscriber Identity (IMSI) of the served party. The IMSI is formatted in
accordance with 3GPP TS 23.003. The IMSI is extracted from MN-ID AVP from AAA or NAI (username part contains
IMSI).
accordance with 3GPP TS 23.003. The IMSI is extracted from MN-ID AVP from AAA or NAI (username part contains
IMSI).
Example for Coding: (Set by SGSN)
3GPP TS 23.003 (CCITT Rec. E 212)ServedIMSI ::= OCTET STRING (SIZE(1..8))--
subscriber identification IMSI-- octet 1..8: <= 15 digits TBCD-String
(twisted)-- substructure (without spares or fillers):-- 3 digits - mobile
country code (MCC)-- 2 digits - mobile network code (MNC)-- <= 10 digits -
mobile subscriber identification number (MSIN)-- first and intermediate octet =
2 digits-- last octet = 2 digits or 1 digit + 1 fill digit H'F--
subscriber identification IMSI-- octet 1..8: <= 15 digits TBCD-String
(twisted)-- substructure (without spares or fillers):-- 3 digits - mobile
country code (MCC)-- 2 digits - mobile network code (MNC)-- <= 10 digits -
mobile subscriber identification number (MSIN)-- first and intermediate octet =
2 digits-- last octet = 2 digits or 1 digit + 1 fill digit H'F--
-- example:-- IMSI: '262025600010020'-- filled: '262025600010020F'-- encoded:
H'62 02 52 06 00 01 20 F0
H'62 02 52 06 00 01 20 F0
Format
BCD encoded octet string
Length
3-8 bytes