Cisco Cisco Packet Data Gateway (PDG)
SGSN Changes in Release 17
▀ SGSN Enhancements for 17.0
▄ Release Change Reference, StarOS Release 17
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configure
apn-profile profile_name
sm t3396 min minimum_minutes max maximum_minutes cause cause_code
remove sm t3396
end
Notes:
remove
: Including this filter with the command removes the SM backoff timer definition from the APN Profile
configuration.
minimum_minutes
: Enter an integer from 1 to 15 to identify the minimum number of minutes; default is 15
minutes.
maximum_minutes
: Enter an integer from 1 to 4320 to identify the maximum number of minutes.
cause_code
: Enter an integer from 1 to 255 to identify the appropriate rejection cause code. The default is 26.
During congestion, the configured value is ignored and 26 is sent.
The command can be repeated to define a maximum of 16 cause codes.
During congestion, the SGSN randomly chooses a T3396 value from the configured range and sends that timer
value to the UE in the Reject message with the cause code #26.
T3396 configured in an APN Profile will override a T3396 value configured for either an SGSN Service or a
GPRS Service.
Performance Indicator Changes
Counters and Stats
For a list of new congestion control statistics and display counters, please refer to CSCup11529 and CSCup71741.
Disconnect Reasons
For information on disconnect reason(s) created to support the MTC functionality, refer to CSCup82824.
CSCum62444 - SGSN to backup counters and recover them after session
manager crash
Feature Changes
Backup and Recovery of Key KPI Statistics
Previous Behavior: The counter values were not recovered after a session manager crash, hence the KPI values which
depend on these counter values were affected. Backing up all possible counters is not feasible as this would have an
impact on memory and also on session recovery time.
depend on these counter values were affected. Backing up all possible counters is not feasible as this would have an
impact on memory and also on session recovery time.