Cisco Cisco ASR 5000
APN Restriction
▀ Feature Description
▄ SGSN Administration Guide, StarOS Release 18
Feature Description
The reception, storage, and transfer of APN Restriction values is used to determine whether a UE is allowed to establish
PDP Context or EPS bearers with other APNs. This feature is supported by both the Gn/Gp-SGSN and the S4-SGSN.
PDP Context or EPS bearers with other APNs. This feature is supported by both the Gn/Gp-SGSN and the S4-SGSN.
During default bearer activation, the SGSN sends the current maximum APN restriction value for the UE to the
GGSN/P-GW in a Create PDP Context Request/ Create Session Request(CSR). The GGSN/P-GW will have an APN
restriction value for each APN. The UE’s APN Restriction value determines the type of application data the subscriber
is allowed to send. If the maximum APN restriction of the UE (received in the CSR) and the APN Restriction value of
the APN (for which activation is being requested) do not concur, then the GGSN/P-GW rejects activation. The
maximum APN restriction for a UE is the most restrictive based on all already active default EPS bearers. The purpose
of enabling APN Restriction in S4-SGSN is to determine whether the UE is allowed to establish EPS Bearers with other
APNs based on the Maximum APN Restriction value associated with that UE.
GGSN/P-GW in a Create PDP Context Request/ Create Session Request(CSR). The GGSN/P-GW will have an APN
restriction value for each APN. The UE’s APN Restriction value determines the type of application data the subscriber
is allowed to send. If the maximum APN restriction of the UE (received in the CSR) and the APN Restriction value of
the APN (for which activation is being requested) do not concur, then the GGSN/P-GW rejects activation. The
maximum APN restriction for a UE is the most restrictive based on all already active default EPS bearers. The purpose
of enabling APN Restriction in S4-SGSN is to determine whether the UE is allowed to establish EPS Bearers with other
APNs based on the Maximum APN Restriction value associated with that UE.
This feature provides the operator with increased control to restrict certain APNs to UEs based on the type of APN. This
feature requires no special license.
feature requires no special license.
APN Restriction for SGSN is enabled/ disabled in the Call-control-profile configuration mode using the
apn-
restriction
command.
Relationships to Other Features
APN Restriction value corresponding to each APN is known by the GGSN/P-GW. The Gn/S4-SGSN sends the
Maximum APN Restriction of the UE to the GGSN/P-GW in a Create PDP Context Request/ Create Session Request.
The GGSN/P-GW accepts or rejects the activation based on the Maximum APN Restriction of UE and APN Restriction
value of that APN which is sent the Create PDP Context Request/ Create Session Request
Maximum APN Restriction of the UE to the GGSN/P-GW in a Create PDP Context Request/ Create Session Request.
The GGSN/P-GW accepts or rejects the activation based on the Maximum APN Restriction of UE and APN Restriction
value of that APN which is sent the Create PDP Context Request/ Create Session Request