Cisco Cisco Packet Data Gateway (PDG) Ratgeber Für Administratoren
S-GW CDR Field Descriptions
CDR Fields ▀
Cisco ASR 5x00 GTPP Interface Administration and Reference ▄
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2. If the initial ULI has one or more ULI Types (i.e. ECGI, TAI, RAI, CGI), then the change
condition the priority will be as follows:
•
CGI-SAI Change
•
RAI Change
•
TAI Change
•
ECGI Change
3. If the current ULI type is not present (optional) in CSRequest the change condition is
based on the new ULI contents. That is, if new ULI has ECGI, then it will be considered
as ECGI change.
as ECGI change.
4. The ULI in main CDR part indicates the ULI at the time of record opening time. i.e. If
CSReq comes with ULI U1 and then the ULI is changed to U2, U3 and if a CDR is
generated the main ULI in CDR contains ULI as U1, but the next CDR generated contains
the ULI as U3 and so on.
generated the main ULI in CDR contains ULI as U1, but the next CDR generated contains
the ULI as U3 and so on.
5. In container the ULI is present in next container if the previous change condition is either
RAI Change, CGI-SAI Change, TAI Change, ECGI Change.
Important:
apnAmbrChange (50) -- This value is not defined in any 3GPP spec as of yet and therefore a non-
standard value is used.
Format
Enumerated
Length
1 byte
Change time
The Change Time field is part of the “ChangeOfCharCondition”. element in the List of Traffic Volumes. It
provides the local time when a change condition (e.g. record closure) occurred and the container was closed.
provides the local time when a change condition (e.g. record closure) occurred and the container was closed.
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.
offset to 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