Cisco Cisco Packet Data Gateway (PDG) Guida Dell'Amministratore
GGSN CDR Field Descriptions
CDR Fields ▀
Cisco ASR 5x00 GTPP Interface Administration and Reference ▄
163
Time of first usage: 9 bytes
Time of last usage: 9 bytes
Usage time: 4 bytes
User Location Information: 6-13 bytes
Service change condition: 32 bits (4 bytes) (see note below)
QoS negotiated: 12 bytes
Sgsn-address: 4 bytes
SGSN PLMN identifier: 3 bytes
FBC data volume uplink: 4 bytes
FBC data volume downlink: 4bytes
Time of Report: 9 bytes
Rat Type: 1 byte
Failurehandling Continue: 1 byte
Important:
The maximum length of charging rulebase name in the List of Service Data Volumes (LOSDVs) can
be trimmed. For more information, refer to the
gtpp egcdr charging-rulebase-name-max-char-length
command in the Context Configuration Mode Commands chapter of the Command Line Interface Reference Guide.
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: