Cisco Cisco Packet Data Interworking Function (PDIF)
SaMOG Gateway Overview
Network Deployment and Interfaces ▀
SaMOG Administration Guide, StarOS Release 16 ▄
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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.
Transport Combinations
The table below lists the IPv4 transport combinations for the SaMOG Gateway, and whether each combination is
supported for deployment in this release.
supported for deployment in this release.
Table 4. Transport Combinations for the SaMOG Gateway
IP Address
Allocated by the P-
GW for the WLAN
UEs
RADIUS Authentication and
Accounting (between the WLCs
and the SaMOG Gateway)
PMIPv6 Interface
(between the WLCs
and the SaMOG
Gateway)
EoGRE Interface
(between the WLCs
and the SaMOG
Gateway)
Is this Combination
Supported for
Deployment?
IPv4
IPv4
IPv4
IPv4
Yes
Important:
Currently, SaMOG does not support IPv6 Transport with other network elements.