Cisco Cisco Packet Data Gateway (PDG)
SGSN Changes in Release 17
▀ SGSN Enhancements for 17.5
▄ Release Change Reference, StarOS Release 17
472
SGSN Enhancements for 17.5
This section identifies all of the SGSN enhancements included in this release:
Feature Changes - new or modified features or behavior changes. For details, refer to the SGSN Administration Guide
for this release.
for this release.
Command Changes - changes to any of the CLI command syntax. For details, refer to the ASR 5x00 Command Line
Interface Reference for this release.
Interface 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 ASR 5x00 Statistics and
Counters Reference for this release.
fields in new or modified schema and/or show command output. For details, refer to the ASR 5x00 Statistics and
Counters Reference for this release.
Important:
This release includes enhancements that are applicable to multiple products. The following lists the
various multi-product enhancements sections, some of which might include content applicable to your SGSN.
AAA Enhancements
CF Enhancements
ECS Enhancements
Firewall Enhancements
GTPP Enhancements
Lawful Intercept Enhancements
MVG Enhancements
NAT Enhancements
SNMP MIB Enhancements
System and Platform Enhancements
CSCus91182 - UPCQ Need Not be Sent With DT in Certain Scenarios to Modify
MS INIT
Feature Changes
Call Flow Change in Some DT Scenario
If the MS initiates a PDP modification procedure in 3G when direct tunnel is enabled in the Call Control Profile
configuration and 'release-and-establish' is the RAB modification procedure defined for the RNC configuration, then
there is the possibility for error-indication from the GGSN during the RAB-release and re-establish procedure. This can
cause the CN and RAN nodes to go out of sync with respect to the RAB-state.
configuration and 'release-and-establish' is the RAB modification procedure defined for the RNC configuration, then
there is the possibility for error-indication from the GGSN during the RAB-release and re-establish procedure. This can
cause the CN and RAN nodes to go out of sync with respect to the RAB-state.
Previous Behavior: Direct tunnel remains intact for the UE's session during the PDP modification procedure with the
SGSN, using the following call flow:
SGSN, using the following call flow:
1. 3G Attach and Activation.
2. MS- init Modify Request.
2. MS- init Modify Request.