Manual

SaMOG Gateway Overview
Features and Functionality - License Enhanced Feature Software ▀
SaMOG Administration Guide, StarOS Release 17 ▄
43
UE Initiated Detach
Figure 11. UE Initiated Detach Call Flow
Table 11. UE Initiated Detach Call Flow Descriptions
Step
Description
1
UE initiates DHCP Release or L2 layer detach towards wireless network.
2
If access-type is EoGRE, UE sends a "DHCP Release" message to SaMOG.
If the access-type is PMIPv6, WLC sends a PBU (De-registration) to SaMOG.
3
SaMOG sends a "Radius POD" to WLC.
4
WLC initiates Radius-Accounting-Stop message to SaMOG.
5-6
SaMOG in turn initiates STa Termination request to HSS, and receives a STa Termination response back from HSS.
7
SaMOG sends Radius-Accounting-Stop Response message to WLC.
8
For access-type PMIPv6, SaMOG sends back PMIPv6 Proxy Binding .
9
If the APN has been locally broken out, the allocated IP address is returned back to the P-GW IP pool. The session and
associated IP-GRE/EoGRE tunnel is cleared.