The limitation in current NEMO scenario -Problem Statement draft-zhao-nemo-limitations-ps-00.txt John.zhao(Huawei technology shanghai R&D) Ke lin (Shanghai jiao tong university) Wen tao zhong (Shanghai jiao tong university) 2007-12-01 Index Problems and solutions MR loop Entry point selection PMIP related Conclusions and suggestion Future plan Next step References Problem 1 ---- MR loop Problem: The MR may establish the route loop each other. Suggestion: We need to distinguish the MR. Problem 2 ---- entry point selection Problem: The mobile entities(MR or MN) need to select a more stable entry point as the selection to visit the internet. Suggestion: Let the mobile learn some more information about the upper level router. Scenarios of PMIP relatedAddr Dst=LFN’s prefix + node ID CN’s Src Dst Payload Dst=LFN’s prefix + node ID ? Dst Payload Src Dst Src LMA/HA needs the binding info for the LFN’s prefix as the following: Dst=LFN’s prefix + node ID CN’s Addr LMA’s Addr MRIDMR’s HoAMR’s CoALFN’s Prefix MR’s CoA Src The network is PMIPv6 enabled. (MIPv4 is Dst Src Dst Payload similar) CN’s Addr MR bootstrapping in this PMIPv6 network. MAG’s Addr MR’s HoA MR didn’t run the NEMO protocol(RFC3963) and node ID Dst=LFN’s prefix + network use PMIP to management its mobility. CN’s Addr SrcDst Payload root MR as the example, and We use the others is similar.But if nested MR occurred, RO is suggested to promote the efficiency. Problems and requirements of PMIP related 1)How to forward the packets destinated to the nodes under the MR? MAG send the PBU included with the LFN’s prefix to LMA/HA. 2)Where to find the LFN’s prefix of that MR? Policy server Getting it/them from that MR 3)When does the MAG send the PBU? When the MR enter into the PMIPv6 domain. 4)How does the MAG know this is a MR but not a MN? Policy server Getting it/them from that MR solution MR ID CoA HoA LFN’s prefix Really? I need help you binding your LFN’s prefix in LMA/HA. This is a MR (Optional includeing with the LFN’s prefix) Conclusions and suggestion Conclusions: Mobile router is difference to mobile node in pmip scenario and need to be learnt by pmip domain; If can mobile router know each other and the distinguish with those fixed routers, it maybe useful for the best route path selection and the access to the internet. Suggestion: We suggest that we can extend current router discovery messages to achieve these goals. Next step Agree to these problems? Agree to these solutions? We need to provide this details as above? If true, if this draft can be accepted in mext? Other suggestions?