Cisco Cisco Packet Data Gateway (PDG)
S-GW CDR Field Descriptions
▀ CDR Fields
▄ GTPP Interface Administration and Reference, StarOS Release 16
370
Variable Length Format
Record Opening Time
This field contains the time stamp when a PDP context is activated in SGSN or when a subsequent record is opened after a
partial record.
partial record.
The timestamp is determined based on the internal timer which has an accuracy of 10ms. Depending on the
configured mechanism (ceiling, floor, round-off), this is translated into the timestamp which only shows the full
seconds.
configured mechanism (ceiling, floor, round-off), this is translated into the timestamp which only shows the full
seconds.
The format is shown below.
TimeStamp ::= OCTET STRING (SIZE(6))
The contents of this field are a compact form of the UTC Time format containing local time plus an offset to
universal time. Binary coded decimal encoding is employed for the digits to reduce the storage and transmission
overhead.
universal time. Binary coded decimal encoding is employed for the digits to reduce the storage and transmission
overhead.
-- e.g. YYMMDDhhmmssShhmm
-- where
-- YY = Year 00 to 99 BCD encoded
-- MM = Month 01 to 12 BCD encoded
-- DD = Day 01 to 31 BCD encoded
-- hh = hour 00 to 23 BCD encoded
-- mm = minute 00 to 59 BCD encoded
-- ss = second 00 to 59 BCD encoded
-- S = Sign 0 = “+”, “-” ASCII encoded
-- hh = hour 00 to 23 BCD encoded
-- mm = minute 00 to 59 BCD encoded
Format
BCD encoded octet string
Length
9 bytes
Record Sequence Number
A running sequence number with range 1.. 4294967296 used to link partial records generated by the S-GW 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