PMIPv6 multicast handover optimization by the Request of Active Multicast Subscription (RAMS)

Document Type Replaced Internet-Draft (individual)
Last updated 2012-09-25 (latest revision 2012-03-12)
Replaced by draft-ietf-multimob-fast-handover
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This Internet-Draft is no longer active. A copy of the expired Internet-Draft can be found at


This document specifies a multicast handover optimization mechanism for Proxy Mobile IPv6 to accelerate the delivery of multicast traffic to mobile nodes after handovers. The mechanism is based on speeding up the acquisition of mobile nodes' active multicast subscriptions information by the mobile access gateways. To do that, extensions to the current Proxy Mobile IPv6 protocol are proposed. These extensions are not only applicable to the base solution for multicast support in Proxy Mobile IPv6, but also can be applied to other solutions envisioned as possible architectural evolutions of it. Furthermore, they are also independent of the role played by the mobile access gateway within the multicast network (either acting as multicast listener discovery proxy or multicast router).


Luis Contreras (
Carlos Bernardos (
Ignacio Soto (

(Note: The e-mail addresses provided for the authors of this Internet-Draft may no longer be valid.)