Cisco Cisco Packet Data Gateway (PDG) Veröffentlichungshinweis
ePDG Changes in Release 15.0
ePDG Enhancements for September 30, 2013 ▀
Cisco ASR 5x00 Release Change Reference ▄
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ePDG Enhancements for September 30, 2013
ePDG Feature Changes as of September 30, 2013
This section provides information on system feature changes in release 15.0.
Important:
For more information regarding features in this section, refer to the System Administration Guide for
this release.
New ePDG Features
This section identifies new ePDG features available in release 15.0.
ICSR
The ePDG supports ICSR with fault detection and automatic switch over. Subscriber session details for all ePDG
interfaces are replicated in STANDBY. In case of a switchover, the new chassis processes all subsequent control and
data traffic for the subscriber session.
interfaces are replicated in STANDBY. In case of a switchover, the new chassis processes all subsequent control and
data traffic for the subscriber session.
ePDG APN-NI: SWu (IDr) interworking with SWm (Service-Selection AVPAPN-NI+OI Support)
According to 3GPP TS 23.003 section 9.1, section 19.4 and TS 29.303 section 5.1.2, ePDG needs to be enhanced for
accepting the APN NI+OI received from UE in GPRS format.
accepting the APN NI+OI received from UE in GPRS format.
Previous Behavior: ePDG only supports APN-NI format being received on Sway interface and further communicate
the same over Sum and S2b interface. ePDG does not handles the OI part of APN.
the same over Sum and S2b interface. ePDG does not handles the OI part of APN.
New Behavior: ePDG does support APN NI and also APN NI+OI formats of APN being received over Sway interface.
ePDG does extracts only APN-NI part and accordingly send the same over Sum interface. Over S2b interface ePDG
does sends APN NI+OI and the OI formation is done using the OI received over Sway interface or using the IMSI for
default OI creation.
ePDG does extracts only APN-NI part and accordingly send the same over Sum interface. Over S2b interface ePDG
does sends APN NI+OI and the OI formation is done using the OI received over Sway interface or using the IMSI for
default OI creation.
[ePDG] - S2b on GTP to support IPv4 transport
The ePDG supports both IPV4 and IPV6 modes for S2B On GTPv2.
The disconnect reason "Transport-mismatch-with-pgw" is reused to disconnect the PMIPv6 call, when IPv4
PGWaddress is received during static/dynamic PGW selection
PGWaddress is received during static/dynamic PGW selection
Previous Behavior: Only IPV6 supported for communication over S2b interface towards PGW, GTP.
New Behavior: IPV4 along with IPV6 supported for communication over S2b interface towards PGW, GTP.
Modified ePDG Features
This section identifies ePDG features modified in release 15.0.
PGW re-selection on call attempt failure due to PGW reject
ePDG selects alternative PGW when first PGW rejects the call.