Cisco Cisco Mobility Unified Reporting Release Note
Generally Available 04-30-2013
GGSN Features in Release 12.2
1-39
container. Also irrespective of the current ULI of the session, always the first ULI received
at the time of call connect will be present in the CDR.
at the time of call connect will be present in the CDR.
The newly introduced CLI control has no dependence on dictionary. It is effective on all the
dictionaries that support ULI-change trigger.
dictionaries that support ULI-change trigger.
Enhanced S6b Support
S6b is an optional Diameter protocol-based interface over which the GGSN communicates
with 3G AAA/HSS in LTE/SAE network for subscriber authorization.
with 3G AAA/HSS in LTE/SAE network for subscriber authorization.
S6b interface has ability to pull SGSN-MCC-MNC from either GTP or AAA-I and send to
OCS. When customer roams into GSM environment, OCS needs location information for
online charging and metering. 3GPP-SGSN-MCC-MNC AVP and Location Information
AVP are defined in Gy and can be used to identify customer location. With this feature, the
GGSN collects the value of SGSN-MCC-MNC from the S6b AAA message, so that it can
be available to OCS through Gy interface while passing CCR and CCA messages.
OCS. When customer roams into GSM environment, OCS needs location information for
online charging and metering. 3GPP-SGSN-MCC-MNC AVP and Location Information
AVP are defined in Gy and can be used to identify customer location. With this feature, the
GGSN collects the value of SGSN-MCC-MNC from the S6b AAA message, so that it can
be available to OCS through Gy interface while passing CCR and CCA messages.
From Release 12.2 onwards, the S6b interface has been enhanced to pass on the UE
assigned IPv6 address (IPv6 prefix and IPv6 interface ID) to the AAA server. S6b interface
also has support for Framed-IPv6-Pool, Framed IP Pool, and served party IP address AVPs
based IP allocation. With this support, based on the Pool name and APN name received
from AAA server, the selection of a particular IP pool from the configuration is made for
assigning the IP address.
assigned IPv6 address (IPv6 prefix and IPv6 interface ID) to the AAA server. S6b interface
also has support for Framed-IPv6-Pool, Framed IP Pool, and served party IP address AVPs
based IP allocation. With this support, based on the Pool name and APN name received
from AAA server, the selection of a particular IP pool from the configuration is made for
assigning the IP address.
GGSN Session License Counting
Previous Behavior
Session credits and session license were counted for both primary and secondary PDP
contexts of GGSN call.
contexts of GGSN call.
New Behavior
Session credits and session license are counted only for primary PDP context of GGSN call.
GTP-U Sequence Number
CLI command added to enable/disable addition of the sequence number to every GTP-U
packet coming from Gi interface and going towards Gn/Gp interface. If GTP-U packets are
received out of sequence, sequence numbers would allow the packets to be recorded.
packet coming from Gi interface and going towards Gn/Gp interface. If GTP-U packets are
received out of sequence, sequence numbers would allow the packets to be recorded.
IPv4v6 Type PDP Support
GGSN now supports IPv4v6 type PDP from release 12.2 onwards. With this support, on
single PDP context, both IPv4 and IPv6 user plane can run simultaneously according to
3GPP TS 23.060 V9.8.0 specification.
single PDP context, both IPv4 and IPv6 user plane can run simultaneously according to
3GPP TS 23.060 V9.8.0 specification.