Cisco Cisco Packet Data Gateway (PDG)
SaMOG Gateway Overview
How the SaMOG Gateway Works ▀
SaMOG Administration Guide, StarOS Release 16 ▄
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AAA Server Initiated Session Disconnection
The figure below shows the message flow during an AAA server initiated session disconnection. The table that follows
the figure describes each step in the message flow.
the figure describes each step in the message flow.
Figure 10. AAA Server Initiated Session Disconnection
Table 11. AAA Server Initiated Session Disconnection
Step
Description
1.
The AAA server sends an Abort Session Request message to the SaMOG Gateway’s MRME service over the STa
interface.
interface.
2.
The MRME service returns an Abort Session Response message to the HSS and begins call deletion,
3.
The MRME service sends a RADIUS Disconnect Request message to the WLC to initiate RADIUS Accounting
Stop/Release.
Stop/Release.
4.
The WLC sends a RADIUS Accounting Stop message to the MRME service.
5.
The MRME service sends a RADIUS Accounting Stop Response message to the WLC and clears the call at the SaMOG
Gateway.
Gateway.
6.
The MRME service triggers call deletion by the CGW service.
7.
The CGW service triggers a session deletion on the P-GW by sending a Delete Session Request message over the S2a
interface.
interface.