Cisco ASR 5000 Series - Page 209

ASN Gateway Overview
CSN Procedure Flows ▀
Cisco ASR 5000 Series Product Overview ▄
OL-22938-02
Figure 62. PMIP4 Session Release Call Flow
ASN GW/PMIP/ FA/
DHCP Proxy
MS/SS
3
5
2
6
7
8
CSN HA
4
1
9
Table 46. PMIP4 Session Release Call Flow Description
Step
Description
1
The session release trigger send by MS sending DHCP-Release message to the ASN GS or DHCP proxy has expired on
lease time or FA initiates session release.
2
ASN Gateway initiates the session release with PMIPv4 client by sending FA_Revoke_Req and sends PMIP De-Reg RRQ
(Registration Revocation) message to CSN HA.
3
CSN HA starts release of MIP binding.
4
CSN HA sends PMIP De-Reg RRQ (Registration Revocation) message to ASN Gateway and PMIP client sends
GA_Revoke_Rsp message to ASN Gateway.
9
WiMAX session terminated between MS and CSN HA.