Cisco Cisco Packet Data Interworking Function (PDIF) Notas De La Versión
SGSN Changes in Release 15.0
▀ SGSN Enhancements for September 30, 2013
▄ Cisco ASR 5x00 Release Change Reference
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Handling of Delete Bearer Request During Inter-SGSN Handoff
Previous Behavior: Delete Bearer request during Inter SGSN Hand-off at the new SGSN was being queued and was
processed once hand-off procedure was completed.
processed once hand-off procedure was completed.
New Behavior: Delete Bearer request during Inter SGSN hand-off at the new SGSN is rejected with cause “110 -
Temporarily rejected due to hand over procedure in progress”.
Temporarily rejected due to hand over procedure in progress”.
Impact: An increase in Delete Bearer Response with cause “110” is observed.
Handling of Suspend-Resume Request from BSC in 2G S4 SM
Previous Behavior: Suspend, resume, radio status bad and ready were not handled from the BSC in a 2G S4 SM.
New Behavior: The software has been enhanced so that Suspend, resume, radio status bad and ready are now handled
from the BSC in a 2G S4 SM.
from the BSC in a 2G S4 SM.
Handling of Update PDP Request Modified
Previous Behavior: The Update PDP request during new SGSN-SRNS procedure was rejected with “no resources
available”.
available”.
New Behavior: The Update PDP request during new SGSN-SRNS procedure is queued and taken up after the
completion of DT RAU procedure.
completion of DT RAU procedure.
Inclusion or Exclusion of Common Flags IE in CPCQ/UPCQ
Previous Behavior: The
gtpc
command under SGTP Service Configuration Mode is used to include/exclude common
flags IE in CPCQ/UPCQ. The dual PDP feature over-rides this CLI command, when the dual PDP feature is enabled, IE
is always included in CPCQ. If NRSPCA is enabled, the common flags IE in CPCQ are sent even if it is disabled in the
SGTP Service Configuration.
is always included in CPCQ. If NRSPCA is enabled, the common flags IE in CPCQ are sent even if it is disabled in the
SGTP Service Configuration.
New Behavior: Inclusion or exclusion of common flags in CPCQ/UPCQ is decided based on the following
configurations:
configurations:
Common flags will be included if any of the following features are enabled, even if inclusion of common flags is
disabled by the
gtpc
command in the SGTP Service Configuration Mode:
Dual PDP feature
NRSPCA feature
If none of the above mentioned features are enabled, common flags are included or excluded based on the
configuration enabled through the
gtpc
command in the SGTP Service Configuration Mode.
Increased SCTP Associations per Peer RNC
Previous Behavior: The maximum number of SCTP associations the SGSN supported per peer RNC was 4.
New Behavior: The maximum number of SCTP associations the SGSN supports per peer RNC is now 12; enabling the
customer to configure more SCTP connections per peer. The increase in the number of SCTP connections is
proportional to the increase in the PSP instances inside the peer server, as indicated in the Enhancing Link Management
Mechanisms feature change description.
customer to configure more SCTP connections per peer. The increase in the number of SCTP connections is
proportional to the increase in the PSP instances inside the peer server, as indicated in the Enhancing Link Management
Mechanisms feature change description.
Increasing Number of SS7 Peers Connected per SS7RD