1 / 7

NSIS Mobility Issues

NSIS Mobility Issues. Hannes Tschofenig Henning Schulzrinne. Possible requirements . Local signaling only: If a local route change happens then the signaling message exchange should be kept local.

moral
Download Presentation

NSIS Mobility Issues

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. NSIS Mobility Issues Hannes Tschofenig Henning Schulzrinne

  2. Possible requirements Local signaling only:If a local route change happens then the signaling message exchange should be kept local. No strong-coupling:No strong-coupling with a macro/micro-mobility protocol (I.e. in-band signaling = adding QoS signaling information to a mobility protocol) Flow identifier change: Flow identifier adaptations along the path should be possible Double reservations:Double reservations should be avoided [ Interworking with existing micro-mobility protocols and Seamoby context transfer]

  3. Flow Identifier Handling • A flow identifier might change along the path because of the following reasons: • Changing Care-of address • Hierarchical mobility schemes • Tunneling • IPSec • NAT • IPv4 to IPv6 transition • Problematic: Inappropriately selected flow identifier might require end-to-end signaling • Bad: Ineffective QoS reservation (e.g. due to NAT or tunnels)

  4. Mobility – Uplink Reservation oCoA AR(old) Crossover Router CN NSIS Create AR(new) nCoA Data ICM N templ-example.ppt

  5. Mobility – Uplink Reservation NSIS Delete oCoA AR(old) Movement Crossover Router CN AR(new) nCoA Data ICM N templ-example.ppt

  6. Mobility – Uplink Reservation AR(old) Crossover Router NSIS Response CN Also possible: Query along the new paths(cost and resource availability) AR(new) nCoA Data ICM N templ-example.ppt

  7. Mobility – Downlink Reservation AR(old) Movement MAP CN Registration RequestBinding Update NSIS Signaling AR(new) • Protocol interaction is similar to a regular route change. • Interactions with micro-mobility software (at MAP) can lead to performance improvements Data

More Related