Cisco Cisco Packet Data Gateway (PDG)
GTPP Accounting Overview
Triggers for Generation of Charging Records ▀
GTPP Interface Administration and Reference, StarOS Release 18 ▄
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Important:
The unsupported triggers mentioned above will be supported when the functionality is available.
SGW-CDR Charging Information Addition
The “List of Traffic Volumes” attribute of the SGW-CDR consists of a set of containers which are added when specific
trigger conditions are met. They identify the volume count per QCI/ARP pair and are separated for uplink and downlink
traffic after encountering that trigger condition.
trigger conditions are met. They identify the volume count per QCI/ARP pair and are separated for uplink and downlink
traffic after encountering that trigger condition.
The following table identifies which conditions are supported to trigger SGW-CDR charging information addition.
Volume container identifies the uplink/downlink volume since the closure of the last container. The “Serving Node
Address” attribute of the SGW-CDR consists of a list of serving node (for example, MME) addresses. A new serving
node address is added to the list when MME changes.
Volume container identifies the uplink/downlink volume since the closure of the last container. The “Serving Node
Address” attribute of the SGW-CDR consists of a list of serving node (for example, MME) addresses. A new serving
node address is added to the list when MME changes.
Table 17. Triggers for SGW-CDR Charging Information Addition
Trigger
Conditions
Conditions
Description/Behavior
QoS Change
A change in the QoS will occur when the open “List of Traffic Data Volumes” containers are closed and added
to the CDR, and a new IP-CAN bearer specific container is opened.
to the CDR, and a new IP-CAN bearer specific container is opened.
Tariff Time
Change
Change
After reaching the Tariff Time Change, open “List of Traffic Data Volumes” containers are closed and added to
the CDR.
the CDR.
User Location
Change
Change
A change in the User Location Info (for example, ECGI, TAI, RAI, SAI or CGI) will close open “List of Traffic
Data Volumes” containers. They are then added to the CDR if location reporting is required and a report of User
Location Change is received.
Data Volumes” containers. They are then added to the CDR if location reporting is required and a report of User
Location Change is received.
ULI Change
When the ULI changes, then a data volume container is added to the field "List of Service Data Volumes".
Apn-Ambr
Change
Change
If APN AMBR changes container need to be added to a bearer based on the configuration of the trigger CLI
command.
command.
CDR Closure
Open “List of Traffic Data Volumes” containers are closed and added to the SGW-CDR.
WLAN-CDR Triggers
The following events trigger closure and sending of a partial WLAN-CDR:
Time Trigger (every x seconds configured using “interval x”)
Volume Trigger (every x octets configured using “volume x” (up/down/total))
On reaching maximum number of container limit
command
gtpp interim now
A WLAN-CDR is closed as the final record of a session for the following events:
UE initiated call termination
command
clear subscribers all
Abnormal Releases due to multiple software failures