для Cisco Cisco Packet Data Gateway (PDG)
SGSN Changes in Release 17
SGSN Enhancements for 17.4 ▀
Release Change Reference, StarOS Release 17 ▄
479
context context_name
gprs-service service_name
[no] rai-skip-validation
end
Notes:
If invalid MCC/MNC values are received from MS in old RAI field in a RAU request, the request is rejected by
the SGSN.
If invalid MCC/MNC values are received from MS in old RAI field in a Attach request, the identity of the MS is
retrieved directly from the MS instead of sending identity request to the peer Node where the MS identity is
derived from the valid old-RAI.
derived from the valid old-RAI.
By default the old RAI MCC/MNC fields are validated.
CSCuu59020 - RAB Assignment Request sent with Alternate RAB param
without RAB param
Feature Changes
Inclusion of Alternate RAB Parameters in RAB Assignment Request
Previous Behavior: Alternate RAB Parameters are always included in the RAB Assignment Request for RAB
Establishment or Modification.
Establishment or Modification.
New Behavior: Alternate RAB Parameters are included only when the RAB Parameters are included in the RAB
Assignment Request for RAB Establishment or Modification.
Assignment Request for RAB Establishment or Modification.
Customer Impact: RAB modification failures do not occur during direct-tunnel establishment after Inter-SGSN RAU.
CSCuu74352 - No rab release during upc/dpc collision
Feature Changes
Send Activate PDP Reject Instead of De-activate PDP Request
Scenario:
1. 3G Attach procedure begins.
2. The SGSN receives a PDP Context Activation Request from the UE.
3. The SGSN processes the activation until the RAB establishment procedure; as it is a direct tunnel-capable call,
2. The SGSN receives a PDP Context Activation Request from the UE.
3. The SGSN processes the activation until the RAB establishment procedure; as it is a direct tunnel-capable call,
the SGSN initiates a UPC Request to the GGSN and waits for the UPC Response.
4. The GGSN initiates Delete PDP Context Request on the same context (Note: DPCR can occur for any reason,
such as the GGSN clearing the PDP session).
Previous Behavior: The GGSN initiates a deletion before activation is completed at the SGSN. The SGSN sends a
Deactivate PDP Request. Due to DPC/UPC collision, the SGSN does not release the old RAB at the RNC.
Deactivate PDP Request. Due to DPC/UPC collision, the SGSN does not release the old RAB at the RNC.