Cisco Cisco Packet Data Interworking Function (PDIF)
SGSN Changes in Release 17
SGSN Enhancements for 17.0 ▀
Release Change Reference, StarOS Release 17 ▄
555
Previous Behavior: The SGSN did not support the "Subscribed Periodic TAU-RAU Timer Withdrawn" Flag in MAP
DSD (delete subscriber data) messages.
DSD (delete subscriber data) messages.
New Behavior: The SGSN now supports the "Subscribed Periodic TAU-RAU Timer Withdrawn" Flag in MAP DSD
messages. This flag indicates to the SGSN that the subscriber no longer has a subscription for the “subscribed periodic
RAU/TAU timer” (Extended T3312 timer) value, so
messages. This flag indicates to the SGSN that the subscriber no longer has a subscription for the “subscribed periodic
RAU/TAU timer” (Extended T3312 timer) value, so
the SGSN will delete any subscribed periodic RAU/TAU timer value information when it is received from the
HLR, and
the SGSN will no longer send Extended T3312 in Attach/RAU Accept messages for that subscriber when
gmm
Extended-T3312-timeout when-subscribed
is configured. (For command details, refer to CSCum67205
earlier in this Release Note.)
CSCup06636 - UE cap in ctxt rsp,gtp ident rsp to be used for interface
selection.
Feature Changes
UE Capability Used to Determine Interface Selection
Previous Behavior: Only ms_network_capability received in RAU request was considered for interface selection.
New Behavior: The ms_network_capability received in context response and the forward re-location request will be
considered for interface selection for RAU and SRNS scenarios. The ms_net_capability received in context response
and forward re-location request will be considered only if ms_net_cap is not sent in RAU request.
considered for interface selection for RAU and SRNS scenarios. The ms_net_capability received in context response
and forward re-location request will be considered only if ms_net_cap is not sent in RAU request.
CSCup11529 - Statistics and bulkstats support for MTC
Feature Changes
Statistics Support for New MTC Functionality
New bulk statistics and display counters have been added as part of the SGSN’s MTC congestion control support in this
release, please refer to CSCum47774, CSCum50056.
release, please refer to CSCum47774, CSCum50056.
Performance Indicator Changes
SGSN Schema
The following Mobility Management bulk statistics have been added to the SGSN:
3g-att-req-with-lapi
3g-att-req-without-lapi
ret-3g-att-req-with-lapi
ret-3g-att-req-without-lapi
3g-att-rej-with-lapi-cong