3Rd Party Session Termination - Ruckus Wireless SmartCell Gateway 200 Reference Manual

3rd Party Access Network Protocol
Access Network
3rd party APs are managed by the 3rd party AP controller. The SCG supports
multiple 3rd party zones.
NOTE: The SCG does not support roaming for 3rd party APs.
Figure 14. 3rd party using QinQ and TTG+PDG
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3rd Party Session Termination

TTG session termination procedures for UEs associated to 3rd party AP differ from
Ruckus APs call flows. In this case, the control plane sends the RADIUS DM
message to the AP. When a session is to be terminated (GGSN/HLR/Admin initiated)
control plane uses the 3rd party AP's IP address to build and send the RADIUS DM
message to the AP.
It is possible that 3rd party AP does not support RADIUS DM or 3rd party APs
residing behind a NAT device. During an IP address assignment, the control plane
DHCP server provides a finite lease time (for TTG sessions). If the session is deleted
in the SCG and the association still exists, all data packets coming from UE are
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SmartCell Gateway 200 Tunneling Interface Reference Guide for SmartZone 3.4.1, 800-71380-001 Rev A