Release Note для Cisco Cisco Packet Data Gateway (PDG)
AAA Changes in Release 15.0
▀ AAA Enhancements for September 30, 2013
▄ Cisco ASR 5x00 Release Change Reference
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New Behavior: P-CSCF server selection after session recovery is removed as P-CSCF addresses are required only
during call establishment and not required at later stages of the session.
during call establishment and not required at later stages of the session.
Hence, the P-CSCF server addresses selected for a subscriber are not part of the “
show ims-authorization
sessions full
” output post session manager recovery.
Encoding of 3GPP2-MEID AVP in CCR Messages
Applicable Product(s): PDSN
Previous Behavior: MEID value was not encoded in CCR messages.
New Behavior: The 3GPP2-MEID AVP is added to dcca-custom16 and standard Gy dictionary. This AVP is part of
Terminal-Information AVP. This optional AVP is sent in all CCR messages over Gy interface only if received on A11
interface.
Terminal-Information AVP. This optional AVP is sent in all CCR messages over Gy interface only if received on A11
interface.
This change is mainly implemented to charge and control the subscriber of data service by IMSI and MEID.
Extended Support for Diameter Result-Codes 4202/4203
Applicable Product(s): GGSN, P-GW
Previous Behavior: When the OCS sends CCA-U with MSCC result-code 4202 (USER_ EXPIRED) and 4203
(USER_INVALID) and FUI = REDIRECT, these result codes were treated as failure result-codes.
(USER_INVALID) and FUI = REDIRECT, these result codes were treated as failure result-codes.
New Behavior: For the Gy dictionary "dcca-custom30", when the OCS sends CCA-U with the result-code 4202/4203
and FUI = REDIRECT, these result-codes will be treated as success (redirection) result-codes (2001) and the subscriber
will be redirected to the specified redirected URL.
and FUI = REDIRECT, these result-codes will be treated as success (redirection) result-codes (2001) and the subscriber
will be redirected to the specified redirected URL.
Failure Handling Configuration Change for Result Code 4010
Applicable Product(s): GGSN
Previous Behavior: For postpaid subscribers, the default CCFH behavior with dcca-custom27 dictionary was set to
"continue", when the transient failure result-code 4010 is received.
"continue", when the transient failure result-code 4010 is received.
New Behavior: Fandling Handling template is used to overwrite the default behavior to “terminate” when the result-
code 4010 is received.
code 4010 is received.
Gx Assume Positive Enhancement
Applicable Product(s): GGSN, HA, HSGW, IPSG, PDSN, P-GW, S-GW
Previous Behavior: Once the IP CAN session falls back to local policy it remained with local policy until the
termination timer expires or the subscriber disconnects.
termination timer expires or the subscriber disconnects.
Also, the RAR message received when the local-policy timer was running got rejected with the cause “Unknown
Session ID”.
Session ID”.
New Behavior: Now, P-GW/GGSN provides a fair chance for the subscriber to reconnect with PCRF in the event of
CCR failure. To support this feature, configurable validity and peer backoff timers are introduced in the Local Policy
Service and Diameter endpoint configuration commands.
CCR failure. To support this feature, configurable validity and peer backoff timers are introduced in the Local Policy
Service and Diameter endpoint configuration commands.
Also, the RAR received when the local-policy timer is running will be rejected with the cause
“DIAMETER_UNABLE_TO_DELIVER”.
“DIAMETER_UNABLE_TO_DELIVER”.
IMSI/MSISDN based PCRF Selection
Applicable Product(s): GGSN, PDSN, P-GW