Cisco Cisco Packet Data Gateway (PDG) Manual De Manutenção
New Feature Summary
Generally Available 06-30-2010
1-28
GGSN Features in Release 8.1
This section provides information for new features for the GGSN Service.
Hard Disk Storage for CDR Files
A hard disk has been introduced in the ST40 platform to add storage capability. When
storing CDR files on the SMC hard disk, first they are stored on RAMFS before they are
moved to the hard disk and then they can be off-loaded via ftp or sftp to an external server
(such as the L-ESS or the GSS) or billing system. For additional support information, see
storing CDR files on the SMC hard disk, first they are stored on RAMFS before they are
moved to the hard disk and then they can be off-loaded via ftp or sftp to an external server
(such as the L-ESS or the GSS) or billing system. For additional support information, see
●
Use the new command
gtpp storage-server local file {local | remote }
command in GTPP Group Configuration Mode to configure and enable hard disk usage.
●
Use the new show/clear commands
{ show | clear } gtpp storage-server local
file { counter | statistics }
in the Exec Mode to monitor/clear the file counters
and statistics on the hard disk.
●
Use the new
gtpp ram-disk-limit
and
gtpp compression-process
commands in the
Global Configuration Mode to allocate RAM for files and the number of compression
process to support the hard disk functionality.
process to support the hard disk functionality.
NPU Assisted MBMS Data Flow
ST40 platforms now supports NPU assisted processing of MBMS data packets and relieves
the Session Manager to provide better performance. Currently with NPU assisted data
processing ST40 can support 225 SGSNs per MBMS Bearer Service for downlink of
MBMS data. Earlier it was limited to 15.
the Session Manager to provide better performance. Currently with NPU assisted data
processing ST40 can support 225 SGSNs per MBMS Bearer Service for downlink of
MBMS data. Earlier it was limited to 15.
This enhancement is not applicable to ST16 platforms and a maximum of 15 downlink
SGSNs per MBMS Bearer service are supported.
SGSNs per MBMS Bearer service are supported.
For details about this new enhancement, refer MBMS Service Configuration chapter of the
System Enhanced Feature Configuration Guide.
System Enhanced Feature Configuration Guide.
Rel. 7 Gx Interface Support
Starent Networks GGSN now supports Rel. 7 Gx interface.
For IMS deployment in GPRS/UMTS networks the system uses Rel. 7 Gx interface for
policy-based admission control support and flow-based charging. The Rel. 7 Gx interface
supports enforcing policy control features like gating, bandwidth limiting, etc., and also
supports flow-based charging. This is accomplished via dynamically provisioned Policy
Control and Charging (PCC) rules. These PCC rules are used to identify service data flows
and do charging. Other parameters associated with the rules are used to enforce policy
control.
policy-based admission control support and flow-based charging. The Rel. 7 Gx interface
supports enforcing policy control features like gating, bandwidth limiting, etc., and also
supports flow-based charging. This is accomplished via dynamically provisioned Policy
Control and Charging (PCC) rules. These PCC rules are used to identify service data flows
and do charging. Other parameters associated with the rules are used to enforce policy
control.