Cisco Cisco Packet Data Interworking Function (PDIF)
GGSN CDR Field Descriptions
CDR Fields ▀
GTPP Interface Administration and Reference, StarOS Release 16 ▄
167
Important:
When encoding the Service Change Condition bit string, the following rule is applied:“In a primitive
encoding, the first contents octet gives the number of bits by which the length of the bit string is less than the next
multiple of eight (this is called the ‘number of unused bits’). The second and following contents octets give the value of
the bit string, converted to an octet string." [As stated in A Layman's Guide to a Subset of ASN.1, BER, and DER -
Burton S. Kaliski section 5.4] For example, serviceConditionChange is set to "88 0403 0400 00" to continue the ongoing
session case. "03" represents the number of unused bits according to ASN.1 encoding which indicates that the octet
following the length octet actually gives the number of unused bits.
multiple of eight (this is called the ‘number of unused bits’). The second and following contents octets give the value of
the bit string, converted to an octet string." [As stated in A Layman's Guide to a Subset of ASN.1, BER, and DER -
Burton S. Kaliski section 5.4] For example, serviceConditionChange is set to "88 0403 0400 00" to continue the ongoing
session case. "03" represents the number of unused bits according to ASN.1 encoding which indicates that the octet
following the length octet actually gives the number of unused bits.
In 12.3 and earlier releases, when the CLI command
gtpp egcdr service-data-flow threshold interval
was
configured to ‘n’ seconds, the difference between “timeOfFirstUsage” and “timeOfReport” of LOSDV was always ‘n’
seconds for the LOSDVs closed due to “service-data-flow” threshold. Here, changeTime of LOSDV was reported
incorrectly. It was always timeOfFirstUsage + ‘n’. This does not hold true when the traffic for a particular content ID was
not continuous.
seconds for the LOSDVs closed due to “service-data-flow” threshold. Here, changeTime of LOSDV was reported
incorrectly. It was always timeOfFirstUsage + ‘n’. This does not hold true when the traffic for a particular content ID was
not continuous.
In StarOS release 14.0 and later, when the command
gtpp egcdr service-data-flow threshold interval
is
configured to ‘n’ seconds, the difference between “timeOfFirstUsage” and “timeOfReport” of LOSDV can be any value
between 1 and ‘n’ seconds depending on the continuity of traffic. If the traffic is not continuous, the difference is less than
‘n’ seconds. And if the traffic is continuous the difference will be ‘n’ seconds. When this CLI command is configured in
the GTPP Server Group Configuration mode, each LOSDV will be closed at configured regular interval after the arrival
of first packet.
between 1 and ‘n’ seconds depending on the continuity of traffic. If the traffic is not continuous, the difference is less than
‘n’ seconds. And if the traffic is continuous the difference will be ‘n’ seconds. When this CLI command is configured in
the GTPP Server Group Configuration mode, each LOSDV will be closed at configured regular interval after the arrival
of first packet.
List of Traffic Data Volumes
A list of the changes that occurred in the charging conditions for this PDP context.
The list will include one or more containers each including the following fields:
QoS negotiated: Quality of service (QoS) has been negotiated. The initial and final corresponding data values are
listed. This is only added for the first container and the container after a QoS change.
listed. This is only added for the first container and the container after a QoS change.
Uplink volume: The number of octets (uncompressed) received from the MS. The initial and final corresponding
data values are listed.
data values are listed.
Downlink volume: The number of octets (uncompressed) transmitted to the MS.The initial and final
corresponding data values are listed.
corresponding data values are listed.
Change Condition: Identifies the reason that the container was closed such as tariff time change, QoS change, or
closing of the CDR.
closing of the CDR.
Change Time: A time stamp identifying the time at which the volume container or the CDR closed.
User Location Information: Identifies the location of the user known at the time when conatiner is created.
For GPRS, data volumes are in octets above the GTP layer and are separated for uplink and downlink traffic. In UMTS,
data volumes are in octets above the GTP-U layer and are separated for uplink and downlink traffic.
data volumes are in octets above the GTP-U layer and are separated for uplink and downlink traffic.
Format
QoS negotiated: Octet String
Uplink volume: Integer
Downlink volume: Integer
Change Condition: Integer
Change Time: BCD encoded octet string
User Location Information: Octet String