Network-based localized Mobility Management (NETLMM)
NetLMM Overview 1.Introduction 1.1-Mobility Management 1.2-Mobile IPv6 Problem 2.Related Work 2.1-MIPv6 and HMIPv6 2.2-Summary 3.NetLMM Approach 3.1-Overview 3.2-Message flow 3.3-Handoff ’s Message Flow 3.4-Compare To Mobile IPv6 4.Data Flow
Introduction Mobility Management Mobility management – 找到行動用戶目前所在的位置 – 傳送和接受資料封包 – 保持行動用戶的連接 如同行動用戶不斷地移動改變他所附著的基地台 Mobile IPv6 (MIPv6) –Ipv6 是個眾所周知的成熟標準， IPv6 的標準中內建支援行動 IP(Mobile IP). 的功能，使得在 IPv6 的環境下要行動上網更加方 便。 – 能夠解決在 mobile ipv4 下所碰到的許多問題 )
Introduction Mobile IPv6 Home Network HAAP MN CN Care-of-Address Move Foreign Network Care-of-Address Binding Update message Return Routability Binding Update Message for CN
Introduction Mobile IPv6 Problem ‧ 仍然顯示出一些問題例如換手延遲、封包遺失、 signaling overhead – 本章節焦點著重在 handover latency ‧ MN 從一個 foreign network 移動到另一個 foreign network 時
Related Work MIPv6 and HMIPv6 如同前面所提到的 MIPv6 仍然是有些問題 – 像是換手延遲、封包遺失和 signaling overhead Hierarchical Mobile IPv6( 階層式 Mobile IPv6) –"Hierarchical Mobile IPv6 Mobility Management (HMIPv6)“, IETF RFC 4140, Aug –HiMIPv6 延伸了 Mobile IPv6 的功能 – 考慮到區域行動性的處理
HA Related Work Hierarchical Mobile IPv6 Home Network MAP AR MAP domain ARMN On-link Care-of-Address (LCoA) Regional Care-of-Address (RCoA) Move Foreign Network CN
Related Work Summary Mobile IPv6 仍然是有些問題存在 Hierarchical Mobile IPv6 – 延伸了 MIPv6 的功能 – 改善換手延遲 – 考慮到 local mobility handling – 須要修改到 MN Proxy Mobile IPv6(PMIPv6) – 改善換手延遲更優於 HMIPv6 – 不須要修改到 MN
NetLMM Approach Overview NetLMM 為 IETF 所制訂的網際網路標準 屬於一種基於網路移動性管理的協定 ) 必須依賴眾多通訊基地台的合作來代替 MN 做移動性的管理 )
NetLMM Approach Overview Home Network LMA LMA(Local Mobility Anchor) MAG(mobile access gateway) NETLMM domain –(network-based localized mobility management domain)
NetLMM Approach Overview LMA(Local Mobility Anchor) MAG(mobile access gateway) NETLMM domain –(network-based localized mobility management domain) Home Network LMA MAG
NetLMM Approach Overview LMA(Local Mobility Anchor) MAG(mobile access gateway) NETLMM domain –(network-based localized mobility management domain) Home Network LMA MAG NETLMM domain
NetLMM Approach Overview Home Network LMA MAG NETLMM domain MN CN Foreign Network LMA(Local Mobility Anchor) MAG(mobile access gateway) NETLMM domain –(network-based localized mobility management domain)
NetLMM Approach Message Flow 1.MN Attachment 2.AAA query with MN-ID 3.AAA reply with profile 4.PBU with MN-ID 5.AAA query with MN-ID 6.AAA reply 7.PBA with MN-ID, home network prefix option(Per-MN Prefix model)
NetLMM Approach Message Flow (1) MN Attachment
(2) AAA query with MN-ID NetLMM Approach Message Flow
(3) AAA reply with profile
NetLMM Approach Message Flow (4) PBU with MN-ID
NetLMM Approach Message Flow (5) AAA query with MN-ID
NetLMM Approach Message Flow (6) AAA reply
NetLMM Approach Message Flow (7) PBA with MN-ID, home network prefix option
NetLMM Approach Message Flow (8)Bidirectional tunnel setup & Router Advertisement
NetLMM Approach Handoff ’s Message Flow Home Network LMAMAG1 MAG2 MN CN Foreign Network Home-of-Address NETLMM domain
NetLMM Approach Handoff ’s Message Flow Home Network LMAMAG1 MAG2 MN CN Home-of-Address Move Foreign Network NETLMM domain
NetLMM Approach Handoff ’s Message Flow Home Network LMAMAG1 MAG2 MN CN Home-of-Address Foreign Network MN Attachment NETLMM domain
NetLMM Approach Handoff ’s Message Flow Home Network LMAMAG1 MAG2 MN CN Home-of-Address Foreign Network Proxy Binding Update message NETLMM domain
NetLMM Approach Handoff ’s Message Flow Home Network LMAMAG1 MAG2 MN CN Home-of-Address Foreign Network Proxy Binding Ack NETLMM domain
NetLMM Approach Handoff ’s Message Flow Home Network LMAMAG1 MAG2 MN CN Home-of-Address Foreign Network Router advertisement NETLMM domain
NetLMM Approach Handoff ’s Message Flow Home Network LMAMAG1 MAG2 MN CN Home-of-Address Foreign Network NETLMM domain
NetLMM Approach Compare To Mobile IPv6 30
Data Flow Data transport mode(Tunnel) ： IP in IP