1 / 10

PMIP6 extensions for inter-access handovers and flow mobility

PMIP6 extensions for inter-access handovers and flow mobility. Basavaraj Patil and Rajeev Koodli IETF 76. Base PMIP6. LMA. PMIP6 domain. IP network. MAG-1. MAG-2. Access-1. Access-1. Beyond Base PMIP6. LMA. PMIP6 domain. IP network. MAG-1. MAG-2. Access-1. Access-2.

larissa-rowland
Télécharger la présentation

PMIP6 extensions for inter-access handovers and flow mobility

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. PMIP6 extensions for inter-access handovers and flow mobility Basavaraj Patil and Rajeev Koodli IETF 76

  2. Base PMIP6 LMA PMIP6 domain IP network MAG-1 MAG-2 Access-1 Access-1

  3. Beyond Base PMIP6 LMA PMIP6 domain IP network MAG-1 MAG-2 Access-1 Access-2

  4. Beyond RFC 5213 • How does MAG-2 perform PMIP6 Binding Update (enabling the MN to maintain the same HNP)? - Inter-access handover • Internally, how does the MN move HNP from Access-1 to Access-2? • If the MN is attached to both accesses simultaneously, how can the network (i.e., LMA) move a subset of flows from Access-1 to Access-2? – Multihoming, flow mobility

  5. Status and Steps • There is MAG – LMA interaction and MAG – MN interaction • MAG – LMA interaction is network only (clearly) • No agreement on MN extensions for MAG – MN interaction • Extensions to RS/RA to indicate interface change, provide new prefix? • Link-layer specific mechanisms? • Presentation to follow • Need to decide on WG adoption of topics

  6. IETF75 Additional slides

  7. IETF75 Base PMIP6, Beyond Base PMIP6 • LMA manages MN mobility, but the MN is unaware of LMA managing it • There is no signaling between the MN and the LMA • MAG is the MN’s default router • There is (IP) signaling between the MN and the MAG • The mobility paradigm is network-based • There is only LMA, MAG managing mobility, session (QoS, policy, accounting etc.) • No additional entities are present

  8. IETF75 Inter-access handover • MAG-2 needs parameters to perform the PBU operation (to ensure that the same HNP is assigned) • LMA can assign the same HNP based on MN Identifier (typically the MN-NAI) • Choices: • AAA server can provide LMA address, MN Identifier (MN-NAI) when access authentication is in place • MAG-1 can provide via context transfer • MN provides an indication of interface change in RS • Others?

  9. IETF75 Use of same HNP • The MN needs to have the capability to hide interface change in order to preserve the same HNP and addresses in use • Choices: • Virtual interface? • Others?

  10. IETF75 Multihoming (Flow Mobility) • When the MN is simultaneously attached, how to share the same HNP across interfaces? • LMA needs to identify the flows that need to be mapped to the corresponding interfaces • The control logic resides at and internal to the LMA • LMA – MAG signaling extensions • Indication to the MN - Choices: • L2: MAG can inform change in traffic template via access-specific signaling; e.g., NAS messaging in LTE • RA with new option • Others?

More Related