Cisco Cisco Packet Data Gateway (PDG)
• AAA Enhancements
• CF Enhancements
• ECS Enhancements
• Firewall Enhancements
• GTPP Enhancements
• Lawful Intercept Enhancements
• MVG Enhancements
• NAT Enhancements
• SNMP MIB Enhancements
• System and Platform Enhancements
Checking for S5/S8 PGW Data IP Address in Received CSR
CSCuy19662 - Session Manager restarts on failed assert in sn_gt_encode_pdp_context_ie
Feature Changes
Previous Behavior: In situations where the S5/S8 PGW data IP address is not available in the Create Session
Response (CSR) for an Attach Request/PDN Connectivity Request, the MME continues the attach/PDN
connectivity procedure.
Response (CSR) for an Attach Request/PDN Connectivity Request, the MME continues the attach/PDN
connectivity procedure.
New Behavior: The MME now checks for the S5/S8 PGW data IP address when CSR is received as part of
an Attach Request/PDN Connectivity Request, and if the S5/S8 PGW data IP address is not included, then
the MME sends Delete Session to the SGW and rejects the Attach Request/PDN Connectivity Request.
an Attach Request/PDN Connectivity Request, and if the S5/S8 PGW data IP address is not included, then
the MME sends Delete Session to the SGW and rejects the Attach Request/PDN Connectivity Request.
Customer Impact: Customer should not experience Session Manager crashes later in the call flow as a result
of Gn handovers (SRNS or context transfer).
of Gn handovers (SRNS or context transfer).
Configurable Deactivation of PDN when CC Changes
CSCux79888 - MME does not update CC in APN Subscription following ISDR
CSCuz81813 - pdn-deactivate-cc: 3GTo4G TAU rejected when no CC in cont res and ULA
Feature Changes
Old Behavior:
The MME updates the Charging Characteristics (CC) for an APN in the subscriber DB and keeps the PDN
active when the CC information changes in or is absent from the Insert Subscriber Data Request (ISDR).
active when the CC information changes in or is absent from the Insert Subscriber Data Request (ISDR).
New Behavior:
Based on new CLI keyword 'pdn-deactivate cc-change' for the policy command in the MME service
configuration (new CLI is defined in the Command Changes section below), the MME can be configured to
deactivate the PDN when the CC information changes in or is absent from the Insert Subscriber Data Request
(ISDR).
configuration (new CLI is defined in the Command Changes section below), the MME can be configured to
deactivate the PDN when the CC information changes in or is absent from the Insert Subscriber Data Request
(ISDR).
With the new configuration:
Release Change Reference, StarOS Release 19
161
MME Changes in Release 19
Checking for S5/S8 PGW Data IP Address in Received CSR