Presentation is loading. Please wait.

Presentation is loading. Please wait.

2018/5/19 A Proposal of SDN Based Mobility Management in Multiple Domain Networks 使用 SDN 管理移動裝置在多個區域網路之間的連線 Author: Misumi Hata, Satoru Izumi, Toru Abe,

Similar presentations


Presentation on theme: "2018/5/19 A Proposal of SDN Based Mobility Management in Multiple Domain Networks 使用 SDN 管理移動裝置在多個區域網路之間的連線 Author: Misumi Hata, Satoru Izumi, Toru Abe,"— Presentation transcript:

1 2018/5/19 A Proposal of SDN Based Mobility Management in Multiple Domain Networks 使用 SDN 管理移動裝置在多個區域網路之間的連線 Author: Misumi Hata, Satoru Izumi, Toru Abe, and Takuo Suganuma Publisher/Conference: The 18th (APNOMS) 2016 Presenter: Cheng-Feng Ke Date: 2017/02/15 Department of Computer Science and Information Engineering National Cheng Kung University, Taiwan R.O.C. CSIE CIAL Lab 1

2 2018/5/19 Introduction Mobile IP is a standardized mobility management technology and is widely used. This is a communication protocol to enable a mobile device to keep continuous IP services when its user moved to other domain networks by maintaining permanent IP address. Mobile IP 是一個讓 Mobile device 可以和 Service 保持連線的一個協定。 當 Mobile device 從已連線的 domain network 移動到另一個 domain network 的時候。 Mobile IP 可以讓 device 和 service 之間保持溝通。 National Cheng Kung University CSIE Computer & Internet Architecture Lab CSIE CIAL Lab

3 2018/5/19 Introduction Some papers show approaches to apply Software Defined Network (SDN) to mobility management in order to solve the problem of Mobile IP. The existing approaches focus on intra-domain route optimization. Hence, effective mobility management that supports inter-domain handover has not been realized. In this research, we propose SDN based mobility management architecture for multiple domain networks. 現在有很多 paper 都會使用 SDN 去解決 Mobile IP 的問題。 這裡的問題指的是三角路由,後面會再講這問題是什麼。 作者說現有的方法裡在解決這類的問題時,都只考慮了 intra-domain route 的優化,而比較少去探討 inter-domain route 。 所以這篇論文會提出一個基於 SDN 的架構解決三角路由的問題。 National Cheng Kung University CSIE Computer & Internet Architecture Lab CSIE CIAL Lab

4 Introduction Intra-domain routing Inter-domain routing
2018/5/19 Introduction Intra-domain routing Inter-domain routing 先看一下圖片 紅框內的 domain network 路徑選擇就叫做 intra-domain routing 籃框內考慮所有 domain network 的路徑選擇就叫做 inter-domain routing National Cheng Kung University CSIE Computer & Internet Architecture Lab CSIE CIAL Lab

5 Introduction Triangle routing problem FA4 FA3 HA FA2 FA1
2018/5/19 Introduction Triangle routing problem CN - Correspondent Node MN – Mobile Node HA - Home Agent FA - Foreign Agent FA4 FA3 剛剛有提到一個 Mobile IP 在三角路由問題。 這個問題是在移動裝置切換連線的 domain network 時會產生的網路效率問題。 藍色區塊是一個 domain network,他們之間會互相連接 Domain network 裡面會布置 controller 和 openflow-enable switch DomainC 和 DomainS 的附近有兩個 Node,Correspondent Node 和 Mobile Node 這個情境就是 CN 會和 MN 互相溝通,並且在溝通的期間 MN 會從 DomainS 移動到 DomainD。 這張圖有少畫一些部份是其實 MN 並不會和 CN 直接做溝通,而是會先在 domainS 中和 Home agent 連線 Home agent 會負責和 CN 做溝通,接著 MN 移動到 Domain D 的時候,則會和 Foreign Agent1 進行連線 可是這時候 CN 一樣會傳送資訊到 Home Agent 裡,不過這時就會由 Home agent 負責轉發到 Foreign Agent1 。 所以 MN 還是能收到 CN 傳回來的訊息,不過這樣傳送的效率就會比較差。 比較極端的情況。 HA FA2 FA1 National Cheng Kung University CSIE Computer & Internet Architecture Lab CSIE CIAL Lab

6 2018/5/19 Architecture National Cheng Kung University CSIE Computer & Internet Architecture Lab CSIE CIAL Lab

7 Architecture MAC address of MN : 13:24:35:46:57:68
2018/5/19 Architecture MAC address of MN : 13:24:35:46:57:68 IP address which the MN was using in the prior domain: fc00:2580:0300::ac33/64 IP address which the MN is using currently: 2001:db0::200b:446a/64 National Cheng Kung University CSIE Computer & Internet Architecture Lab CSIE CIAL Lab

8 2018/5/19 Architecture National Cheng Kung University CSIE Computer & Internet Architecture Lab CSIE CIAL Lab

9 2018/5/19 Architecture 先執行 inter-domain routes 找出所有路徑的上的 controller,找到 Dd、Dp1、Dc。 接著這三個 controller 就會執行 intra-domain-routes 找出路徑上的所有 switch 並新增 flow entry。 這個 entry 要做的事情就是修改封包中的要送到 domain S 的 source ip 和 destination ip National Cheng Kung University CSIE Computer & Internet Architecture Lab CSIE CIAL Lab

10 2018/5/19 Experimentation National Cheng Kung University CSIE Computer & Internet Architecture Lab CSIE CIAL Lab


Download ppt "2018/5/19 A Proposal of SDN Based Mobility Management in Multiple Domain Networks 使用 SDN 管理移動裝置在多個區域網路之間的連線 Author: Misumi Hata, Satoru Izumi, Toru Abe,"

Similar presentations


Ads by Google