Cisco Cisco Packet Data Interworking Function (PDIF) Nota De Lançamento
SGSN Changes in Release 15.0
▀ SGSN Enhancements for June 6, 2014
▄ Cisco ASR 5x00 Release Change Reference
478
Previous Behavior: Previously, the
show sgsn sessmgr all ptmsi statistics
command included an
nri
parameter in the command that caused incorrect or confusing information to be displayed under the
NRI
heading in the
output.
New Behavior: In the
show sgsn sessmgr all ptmsi statistics
command, the
nri
keyword option has been
renamed as
ptmsi-pool-id
. As well, the NRI display heading in the output screen has also been renamed to
PTMSI
pool ID
.
Customer Impact: Customer will need to use the new keyword when issuing the
show sessmgr all
command as
the old keyword is no longer available.
CSCun89264, CSCuj65387 - [RIM] : Enhancements to Handling subsequent rim
segments
Feature Changes
XUDTS Messages for RIM
Previous Behavior: The SGSN Link manager failed to handle segmented SCCP-XUDT messages resulting in
segmented messages being dropped.
segmented messages being dropped.
New Behavior: When the application layer message cannot be sent in a single SCCP-UDT message, then the SCCP
layer segments the message into multiple XUDTS (Extended Unidata Service) messages and sends them over the
network. The SGSN’s Link manager handles the XUDTS messages for RIM (RAN information request mechanism) by
implementing segment handling and reassembly.
layer segments the message into multiple XUDTS (Extended Unidata Service) messages and sends them over the
network. The SGSN’s Link manager handles the XUDTS messages for RIM (RAN information request mechanism) by
implementing segment handling and reassembly.
New counters have been added to peg handling of these segments (see Performance Indicator Changes below).
Performance Indicator Changes
show linkmgr
New counters have been added to the output of the
show linkmgr all parser statistics all
to peg LinkMGR
handling of XUDTS message segments for RIM. The first is added in the Parser Statistics section and the second new
counter is added to the Memory Cache Usage section of the output.
counter is added to the Memory Cache Usage section of the output.
The first 4 new counters are added in the Parser Statistics section of the output:
Segmented RIM
tracks the number of RIM fragments received.
Out of Seq RIM
tracks the out of sequence RIM fragments received.
Dup RIM
tracks duplicate RIM entries and deletes them before creating a mapping entry in the LRN
table.
Dup LRN
tracks duplicate LRN entries and deletes them before creating a mapping entry in the RIM
table.
The last new counter is added to the Memcache Usage section of the output:
LRN RIM Entry
tracks usage of memory cache blocks for RIM