Cisco Cisco Packet Data Gateway (PDG)
MVG Changes in Release 17
▀ MVG Enhancements for 17.0
▄ Release Change Reference, StarOS Release 17
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MVG Enhancements for 17.0
This section identifies all of the MVG enhancements included in this release:
Feature Changes - new or modified features or behavior changes. For details, refer to the MVG Administration Guide
for this release.
for this release.
Command Changes - changes to any of the CLI command syntax. For details, refer to the Command Line Interface
Reference for this release.
Reference for this release.
Performance Indicator Changes - new, modified, and deprecated bulk statistics, disconnect reasons, counters and/or
fields in new or modified schema and/or show command output. For details, refer to the Statistics and Counters
Reference for this release.
fields in new or modified schema and/or show command output. For details, refer to the Statistics and Counters
Reference for this release.
CSCtr17295 - [MVG-0500] - Policy-Link monitoring congestion trigger
Applicable Products: GGSN, HA, IPSG, P-GW, SAE-GW
Feature Changes
Congestion Management
Congestion can happen more frequently in a cellular network than in a wired network due to various factors such as
airlink interface, high RTT for wireless connections. In this release, MVG supports TCP link state monitoring and
estimation of congestion level at subscriber side airlink interface. The congestion level thus estimated can be sent to
CAE during the start of a video flow. Based on this information, CAE can decide to stream video appropriately
optimized for the subscriber side network. If the first flow from the subscriber itself is video, that flow cannot have
congestion level value. The Congestion Management feature makes use of the existing Link Monitoring feature. So to
enable congestion management, link monitoring has to be enabled.
airlink interface, high RTT for wireless connections. In this release, MVG supports TCP link state monitoring and
estimation of congestion level at subscriber side airlink interface. The congestion level thus estimated can be sent to
CAE during the start of a video flow. Based on this information, CAE can decide to stream video appropriately
optimized for the subscriber side network. If the first flow from the subscriber itself is video, that flow cannot have
congestion level value. The Congestion Management feature makes use of the existing Link Monitoring feature. So to
enable congestion management, link monitoring has to be enabled.
Congestion detection is based on all types of data traffic - video and non-video, and works only for TCP traffic. CLI
support is provided to configure the parameters to interpret the congestion indications per TCP flow and correlate them
for a subscriber to allow experimentation. Congestion sampling time and reporting frequency can also be configured.
Congestion monitoring is done in the downlink direction only.
support is provided to configure the parameters to interpret the congestion indications per TCP flow and correlate them
for a subscriber to allow experimentation. Congestion sampling time and reporting frequency can also be configured.
Congestion monitoring is done in the downlink direction only.
CLI support is provided to enable or disable the Congestion Management feature at either APN or subscriber.
Command Changes
radio-congestion
In this release,
radio-congestion
is a new keyword in the APN Configuration mode to create/configure/delete Radio
Congestion policy.
configure
context context_name
apn apn_name
active-charging radio-congestion policy policy_name