Achieving Scalability in the UPMT Mobility Management Solution

UPMT (Universal Per-application Mobility management using Tunnels) has been proposed as an application level solution for mobility management. Main features of UPMT are the “per-application” handover and the full compatibility with legacy applications, legacy hosts and existing networking infrastructure. A critical issue of the existing proposal is the scalability, as the specification foresee a single Anchor Node (AN) handling the mobility management signalling procedure and acting as “tunnel server” for relaying information towards the Mobile Hosts. Therefore in this paper we denote the existing solution as “UPMT-Centralized AN Mode” (CAM) ad propose to enhance it by defining the UPMT-Distributed AN Mode (DAM). The UPMT-DAM: 1) considers multiple Anchor Nodes; 2) it may allow a Mobile Host to directly communicate to a “Fixed” Correspondent Host (CH) or to another Mobile Host bypassing the Access Nodes and handling the mobility procedures with the CH or with the other MH.