Cisco Cisco Packet Data Interworking Function (PDIF)
Diameter Records Storage on HDD
▀ Feature Description
▄ AAA Interface Administration and Reference, StarOS Release 19
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Feature Description
Overview
ASR5K supports Assume Positive configurations, and this feature is tailored to provide the service to users even when
the Online Charging Server (OCS) is unreachable. This Assume Positive configuration allows the users to configure the
interim-quota (either volume or time or both together along with the number of retries) that can be used when the
charging servers are unreachable or not responding. This feature also lets the user to configure the action to be taken
when the interim-quota and retries are exhausted.
the Online Charging Server (OCS) is unreachable. This Assume Positive configuration allows the users to configure the
interim-quota (either volume or time or both together along with the number of retries) that can be used when the
charging servers are unreachable or not responding. This feature also lets the user to configure the action to be taken
when the interim-quota and retries are exhausted.
In the existing implementation with Assume Positive feature, there are high chances of losing the usage data reported
through the CCR-T when the session is being terminated while in Assume Positive mode. This problem is addressed by
allowing the DCCA module to write the CCR-T messages (with locally assigned quota details) in the HDD of the
chassis.
through the CCR-T when the session is being terminated while in Assume Positive mode. This problem is addressed by
allowing the DCCA module to write the CCR-T messages (with locally assigned quota details) in the HDD of the
chassis.
In cases where the Assume-Positive interim-quota is allocated, and CCR-T is not reported/answered, the CCR-T
message is written to a local file, and saved in the HDD. This local file and directory information can be fetched and
parsed to account for the lost bytes/usage. The retrieval of the file can be done with the PULL mechanism.
message is written to a local file, and saved in the HDD. This local file and directory information can be fetched and
parsed to account for the lost bytes/usage. The retrieval of the file can be done with the PULL mechanism.
Important:
This feature requires a valid license to be installed prior to configuring this feature. Contact your
Cisco account representative for more information on the licensing requirements.
This feature is controlled through the CLI command “
diameter hdd
” introduced in the Credit Control Group
configuration mode. When the CLI configuration is enabled, the DCCA application sends the failed CCR-T messages to
the CDR module for storing in the HDD.
the CDR module for storing in the HDD.
Relationships to Other Features
This feature is applicable for sessions that are in Server-Unreachable state. That is, this feature is applicable only when
Assume Positive feature is enabled.
Assume Positive feature is enabled.
License Requirements
This feature requires a valid license to be installed prior to configuring this feature. Contact your Cisco account
representative for detailed information on specific licensing requirements. For information on installing and verifying
licenses, refer to the Managing License Keys section of the Software Management Operations chapter in the System
Administration Guide.
representative for detailed information on specific licensing requirements. For information on installing and verifying
licenses, refer to the Managing License Keys section of the Software Management Operations chapter in the System
Administration Guide.
Limitations
The following are the limitations of this feature:
When an ICSR event occurs unexpectedly before the CCR-T is written, the CCR-T will not written to the HDD
and hence the usage will be lost.