Virtual Interface Support for IP Hosts Hidetoshi Yokota KDDI Lab Sri Gundavelli Cisco Tran Minh Trung ETRI Yong-Geun Hong ETRI Kent Leung Cisco IETF #77.

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Presentation transcript:

Virtual Interface Support for IP Hosts Hidetoshi Yokota KDDI Lab Sri Gundavelli Cisco Tran Minh Trung ETRI Yong-Geun Hong ETRI Kent Leung Cisco IETF #77 Anaheim, March 2010

Introduction New charter item is created: “hiding access technology changes from host IP layer” Two I-Ds merged into one: Discusses applicability to not only inter-tech handoff, but also multihoming and flow mobility to cover the scope of the charter Main focus is on the host side (L3 and under) 2 “draft-yokota-netlmm-pmipv6-mn-itho-support-02” + “draft-trung-netext-virtual-interface-01”  “draft-yokota-netlmm-pmipv6-mn-itho-support-03”

3 Virtual interface approach (review) I/F PHY2 Virtual interface IP stack (IPv4/IPv6) TCP/UDP Application Datalink layer Physical layer IP layer Transport layer Application layer PHY1 I/F Focus of this draft

4 Routing with virtual interface IF1 WiMAX VIF1 IP stack (IPv4/IPv6) TCP/UDP Application Datalink layer Physical layer IP layer Transport layer Application layer WLAN IF2 FilterIF Prefix1::/64IF1 Prefix2::/64IF2 (SrcIP, DstIP, SrcPort, DstPort, Protocol) IF2 Policy Routing Table

Multihoming case 5 MAG1MAG2 LMA IF1 (WLAN) PCoA-2 PCoA-1 HNPMN-IDCoAATTLL-ID HNP-1MN-1PCoA-14MAC-1 HNP-2MN-1PCoA-25MAC-1 IF2 (WiMAX) Virtual I/F Upper layer IP1=HNP-1:IID-1/128 IP2=HNP-2:IID-1/128 LL-ID: MAC-1 HNP-1 HNP-2 (WLAN)(WiMAX) LMA’s Binding Table MN-ID: MN-1

Inter-technology handoff case 6 MAG1MAG2 LMA IF1 (WLAN) PCoA-2 PCoA-1 HNPMN-IDCoAATTLL-ID HNP-1MN-1PCoA-14MAC-1 IF2 (WiMAX) Virtual I/F Upper layer IP1=HNP-1:IID-1/128 LL-ID: MAC-1 HNP-1 (WLAN)(WiMAX) LMA’s Binding Table handoff PCOA-25

MN-ID: MN-1 Flow mobility case 7 MAG1MAG2 LMA IF1 (WLAN) PCoA-2 PCoA-1 IF2 (WiMAX) Virtual I/F Upper layer LL-ID: MAC-1 HNP-1 HNP-2 HNP-1 HNP-2 (WLAN)(WiMAX) LMA’s Binding Table HNP-2 flow-2 handoff PCOA-25 HNPMN-IDCoAATTLL-ID HNP-1MN-1PCoA-14MAC-1 HNP-2MN-1PCoA-14MAC-1 IP1=HNP-1:IID-1/128 IP2=HNP-2:IID-1/128 (flow-1) (flow-2)

8 Summary and proposal Virtual interface approach to multihoming, inter-technology handoff and flow mobility  Focuses on the host side (on and under L3)  There are still missing pieces, which may be covered by this or other drafts… Propose to move this I-D to the baseline WG document for the logical interface over multiple physical interfaces