Cisco Cisco Packet Data Interworking Function (PDIF) Manual De Mantenimiento
New Feature Summary
Generally Available 06-30-2010
1-50
New CLI commands have been added to the Radio-Network-Controller configuration mode
to govern the inclusion of the Signaling Indication IE in RANAP messages. Refer to the
Command Line Interface Reference for information on enabling/disabling this feature.
to govern the inclusion of the Signaling Indication IE in RANAP messages. Refer to the
Command Line Interface Reference for information on enabling/disabling this feature.
Ga Interface to the CGF/GSS
The SGSN now supports the Ga interface to the CGF for accounting purposes. The SGSN
uses the Ga interface to communicate with the charging gateway function (CGF) or the
GTPP Storage Server (GSS) using GTP Prime (GTPP). The charging gateway is
responsible for buffering and pre-processing billing records. One or more Ga interfaces can
be configured per system context. This interface is supported through the following
commands in the Context configuration Mode:
uses the Ga interface to communicate with the charging gateway function (CGF) or the
GTPP Storage Server (GSS) using GTP Prime (GTPP). The charging gateway is
responsible for buffering and pre-processing billing records. One or more Ga interfaces can
be configured per system context. This interface is supported through the following
commands in the Context configuration Mode:
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gtpp charging-agent address
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gtpp duplicate-hold-time minutes
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gtpp echo-interval
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gtpp max-cdrs
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gtpp max-pdu-size
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gtpp max-retries
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gtpp redirection-allowed
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gtpp server
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gtpp storage-server
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gtpp timeout
Gb-Flex - SGSN Pooling
The SGSN, with its high capacity, signaling performance, and peering capabilities
combined with its level of fault tolerance, delivers many of the benefits of Flex functionary
even without deploying SGSN pooling.
combined with its level of fault tolerance, delivers many of the benefits of Flex functionary
even without deploying SGSN pooling.
As defined by 3GPP TS 23.236, the SGSN implements Gb-Flex functionality to ensure
SGSN pooling for 2.5G accesses as both separate pools and as dual-access pools. SGSN
pooling enables the following:
SGSN pooling for 2.5G accesses as both separate pools and as dual-access pools. SGSN
pooling enables the following:
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Eliminates the single point of failure between a BSS and an SGSN.
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Ensures geographical redundancy, as a pool can be distributed across sites.
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Minimizes subscriber impact during service, maintenance, or node additions or
replacements.
replacements.
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Increases overall capacity via load sharing across the SGSNs in a pool.
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Reduces the need/frequency for inter-SGSN RAUs. This substantially reduces signaling
load and data transfer delays.
load and data transfer delays.
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Supports load redistribution with the SGSN off loading procedure.