Cisco Cisco Packet Data Interworking Function (PDIF)
S-GW Changes in Release 17
▀ S-GW Enhancements for 17.0
▄ Release Change Reference, StarOS Release 17
582
show sgw-service name <name>
The output of this command has been enhanced to indicate the Access Peer Map associated with the S-GW service.
Access Peer Map: <peer_map_name>
show sgw-service statistics all
The output of this command has been enhanced to provide PDN NTSR statistics.
PDNs NTSR Statistics
Peer Failure
Retained
Released
Restored
Peer Restart
Retained
Released
Restored
show subscribers sgw-only full all
The output of this command has been enhanced to provide the NTSR state, and whether the bearer is capable for
restoration.
restoration.
Ntsr state
Bearer capable for restoration: Yes/No
CSCul04397 - Network Provided Location Info (NPLI) for IMS
Feature Changes
NPLI (Network Provided Location Information) for IMS Support
In a Circuit Switched environment, the MSC gets the current Cell-ID information provided by the RNC/BSC. This
location information is used for charging purposes and/or for recording the location of a subscriber for whom the
government authority requests communication history. In a Packet Switched environment – when IMS is used – there
may not be any control plane signaling. In IMS, the UE can provide location information but the information can’t be
trusted. Even though the P-GW can provide the current Cell-ID, that is possible only when location change notification
is enabled (which causes excessive network signaling). There is no mechanism in the network today to proactively or
mid-session query for the user location information. NPLI is introduced by 3GPP to get location information for a
subscriber based on the request from IMS core.
location information is used for charging purposes and/or for recording the location of a subscriber for whom the
government authority requests communication history. In a Packet Switched environment – when IMS is used – there
may not be any control plane signaling. In IMS, the UE can provide location information but the information can’t be
trusted. Even though the P-GW can provide the current Cell-ID, that is possible only when location change notification
is enabled (which causes excessive network signaling). There is no mechanism in the network today to proactively or
mid-session query for the user location information. NPLI is introduced by 3GPP to get location information for a
subscriber based on the request from IMS core.