Cisco Cisco Packet Data Gateway (PDG)
ECS Changes in Release 16
▀ ECS Enhancements for 16.0
▄ Release Change Reference, StarOS Release 16
118
A significant number of internal enhancements have been made in support of voice-grade redundancy for Voice over
LTE (VoLTE) deployments. ICSR components have been optimized to ensure that failure recovery is accomplished
within acceptable limits for VoLTE. The impact on the data path is high priority. For data path interruptions, recovery
be limited to no more than 50 milliseconds for intra-chassis failures and 3-4 seconds for inter-chassis failures.
LTE (VoLTE) deployments. ICSR components have been optimized to ensure that failure recovery is accomplished
within acceptable limits for VoLTE. The impact on the data path is high priority. For data path interruptions, recovery
be limited to no more than 50 milliseconds for intra-chassis failures and 3-4 seconds for inter-chassis failures.
For more details on this enhancement, see the System Enhancements for April 30, 2014 chapter in this Release Notes.
CSCug87349 - Gy Assume Positive - HA Usage Reporting
Applicable Products: HA
Feature Changes
Gy Assume Positive Feature Support for HA Usage Reporting through EDR
Previous Behavior: The current implementation does not provide a way to track and report the actual quota usage
through EDR during assume positive scenarios for HA and hence resulted in potential revenue leakage and created
inaccuracies in billing.
through EDR during assume positive scenarios for HA and hence resulted in potential revenue leakage and created
inaccuracies in billing.
If Gy session is down when the subscriber session terminates, for 4G, the data gets reported in the Rf records, but since
no Rf billing is available in 3G, the records are lost.
no Rf billing is available in 3G, the records are lost.
New Behavior: This feature has been enhanced to support reporting / recording the appropriate usage in volume and
time during regular OCS sessions and during assume positive scenarios separately. In this release, EDRs will be
generated with new closure reasons when OCS goes down for HA.
time during regular OCS sessions and during assume positive scenarios separately. In this release, EDRs will be
generated with new closure reasons when OCS goes down for HA.
Additional configuration options are supported in the EDR format for capturing the attributes needed for tracking usage.
This release supports a new attribute “sn-ocs-server-reachable” having the following values:
OCS_SERVER_NOT_APPLICABLE = 0
OCS_SERVER_UNREACHABLE = 0 + 1
OCS_SERVER_REACHABLE = 0 + 2
This release additionally supports the following values for the attribute “sn-closure-reason”:
ACS_EDR_OCS_REACHABLE = 16
ACS_EDR_OCS_UNREACHABLE = 17
ACS_EDR_INTERIM_VOLUME_EXHAUST = 18
ACS_EDR_INTERIM_TIME_EXHAUST = 19
ACS_EDR_OCS_STATUS_UNKNOWN = 20
Customer Impact: The actual allocated quota and usage are reported when Local Policy is applied so that customers
can appropriately charge the subscribers and track the usage.
can appropriately charge the subscribers and track the usage.
Command Changes
attribute
sn-ocs-server-reachable
is a new keyword in this command to support the attribute “sn-ocs-server-reachable
“when the OCS is in Assume positive mode.