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Motivation

Filters for Mobile IP Bindings (NOMAD) draft-nomad-mobileip-filters-05 N. A. Fikouras, A. Udugama, K. Kuladinithi and C. Görg University of Bremen, Germany W. Zirwas ICM, Siemens AG, Munich presented by Carsten Bormann University of Bremen, Germany.

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Motivation

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  1. Filters for Mobile IP Bindings (NOMAD)draft-nomad-mobileip-filters-05N. A. Fikouras, A. Udugama, K. Kuladinithi and C. GörgUniversity of Bremen, GermanyW. ZirwasICM, Siemens AG, Munich presented byCarsten BormannUniversity of Bremen, Germany

  2. “Simultaneous use of multiple points of attachment on a single Mobile Device” Mobile IPv4 : - Simultaneous bindings (S bit), duplicates traffic - If duplication is unwanted, only one PoA can be active at any given time - One hand-off affects all flows - Not enough IP addresses for multi-homing Filters for Mobile IP Bindings (NOMAD): - Simultaneous use of multiple PoAs with a single Home IP address without duplicating traffic - Distribution of Multiple Flows - Distribution of a Single Flow - Flow Rejection Applications: - Load balancing - Network management (flow management initiated by core network) - Enhanced terminal mobility (partial hand-offs, smoothed hand-offs)  Better utilization of available network resources! Motivation

  3. Mode of Operation Reg. Reg. Reg. Filter FC Filter Proto=udp & Proto=udp & Port=5000 Weight=20 Port=5000 Weight=0 Weight=80 Index=1 Index=1 Index=1 Multiple Flow Distribution Single Flow Distribution Flow Rejection

  4. Filtering Request

  5. Nine Types of Filter Modules DSCP / Flow Label , Traffic Class Source Address, Source Network Source/Destination Port Number/Number Range Protocol Number Free form, specifies the value of an area anywhere within the packet OR between Filter Module Predicates (src port == 500 || src port == 600) AND between Filter Modules (proto == udp && src port == 500) Only one Filter may be applicable Dynamic Format Filters

  6. Conclusions • Simultaneous use of multiple PoA • with a single Home IP address • Dynamic Filter Format definition • Distribution of Multiple Flows (different criteria) • Distribution of a Single Flow (shared criteria) • Flow Rejection

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