Cisco Cisco Packet Data Gateway (PDG)
SaMOG Gateway Overview
Network Deployment and Interfaces ▀
SaMOG Administration Guide, StarOS Release 18 ▄
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Table 3. Logical Network Interfaces on the SaMOG Gateway
Interface
Description
WLAN
Interface
Interface
The interface to the WLCs and WLAN UEs in the trusted non-3GPP IP access network has not yet been defined in
the 3GPP standards. The SaMOG Gateway uses Remote Access Dial In User Service (RADIUS) messages generated
by the IP access network to provide session information such as the IP addresses of the WLAN UEs to the EPC
network via the WLCs and to set up the access side associations.
the 3GPP standards. The SaMOG Gateway uses Remote Access Dial In User Service (RADIUS) messages generated
by the IP access network to provide session information such as the IP addresses of the WLAN UEs to the EPC
network via the WLCs and to set up the access side associations.
STa
Interface
Interface
The interface from the SaMOG Gateway’s MRME service to the 3GPP AAA server, the STa interface is used for
WLAN UE authentication. It supports the transport of mobility parameters, tunnel authentication, and authorization
data. The EAP-AKA, EAP-SIM, and EAP-AKA’ methods are used for authenticating the WLAN UEs over this
interface.
WLAN UE authentication. It supports the transport of mobility parameters, tunnel authentication, and authorization
data. The EAP-AKA, EAP-SIM, and EAP-AKA’ methods are used for authenticating the WLAN UEs over this
interface.
S2a
Interface
Interface
The interface from the SaMOG Gateway’s CGW service to the GGSN/P-GW, the S2a interface runs the
GTPv1/GTPv2 protocol to establish WLAN UE sessions with the GGSN/P-GW.
GTPv1/GTPv2 protocol to establish WLAN UE sessions with the GGSN/P-GW.
IPv6 and Dual-Stack (IPv4v6) Support for Subscriber User Equipment (UE)
The SaMOG Gateway supports IPv6 and dual-stack (IPv4v6) address allocation for trusted Wi-Fi subscribers on the
EPC core. This enables SaMOG Gateway to support a rapidly increasing number of subscribers accessing the internet
via. mobile devices, and technologically advanced (example, Internet of Things) intenet-enabled devices (sensors,
machine-readable identifiers) that demand high network address assignment.
EPC core. This enables SaMOG Gateway to support a rapidly increasing number of subscribers accessing the internet
via. mobile devices, and technologically advanced (example, Internet of Things) intenet-enabled devices (sensors,
machine-readable identifiers) that demand high network address assignment.
SaMOG can support IPv6 or dual-stack (IPv4v6) address allocation for both SIM and non-SIM (non-UICC) based
subscriber's user equipment (UE) on the trusted Wi-Fi network. This is achieved using an external P-GW for SIM-based
devices, and internal P-GW (Local Breakout - Heavy) for non-SIM-based devices to provide access to the EPC core. In
this release, SaMOG supports IPv6/IPv4v6 address allocation over PMIPv6 and EoGRE access types along with
GTPv2-based S2a interface.
subscriber's user equipment (UE) on the trusted Wi-Fi network. This is achieved using an external P-GW for SIM-based
devices, and internal P-GW (Local Breakout - Heavy) for non-SIM-based devices to provide access to the EPC core. In
this release, SaMOG supports IPv6/IPv4v6 address allocation over PMIPv6 and EoGRE access types along with
GTPv2-based S2a interface.
Accepted PDN-Type for IPv4, IPv6, and IPv4v6 Subscribers on PMIPv6 and EoGRE Access Types
AAA Provided PDN-Type (Subscribed PDN-Type) P-GW Provided PDN-Type UE Requested PDN-Type
Requested by UE
Accepted by SaMOG
v6
v6
v6, v4v6
v6
v4
v4
v4, v4v6
v4
v4v6
v4
v4, v4v6
v4
v6
v4, v4v6
v6
v4v6
v4v6
v4v6