User's Manual

CHAPTER 4. Message Flow

4-24

Category Description

(1)~(7) This is the procedure for relocating the authenticator from the S-ACR to the T-ACR.

The T-ACR triggers the MS to perform the EAP authentication procedure again with the

AAA server. The T-ACR notifies the S-RAS of the authentication results to finish the

authenticator relocation procedure.

(8)~(9) The T_ACR transmits the context information for the MS to the S_ACR.

(10)~(19) The authenticator and FA relocation are triggered and the PMIP or CMIP registration

is processed.

(20)~(21) The S-ACR cancels MIP registration of the MS in the HA.

(22)~(25) The S-ACR updates the final accounting information for the MS in interoperation with

the AAA server. If the Diameter protocol is used as the AAA protocol, the S-ACR

performs the session release procedure with the AAA server. However, when the

RADIUS protocol is used, only the Accounting Request stop procedure and the

Accounting Response stop procedure are processed and the STR/STA procedure is

omitted.

4.1.7 Disconnection

Disconnection (Awake Mode)

The figure below shows the procedure with which the MS in Awake mode is disconnected

because the power is turned off.

Figure 4.15 Disconnection (Awake Mode)

MS RAS ACR

AAA

1) DREG-REQ

(ReqCode: 0)

3) Path Deregistration Request

2) DREG-CMD

(ActionCode: 4)

(Power Down Indication)

5) Path Deregistration Response

6) Path Deregistration Ack

9) Diameter: STR

10) Diameter: STA

4) MIP release

7) Diameter: ACR/RADIUS: Accounting Request stop

8) Diameter: ACA/RADIUS: Accounting Response stop