Inter-Domain Roaming Mechanism Transparent to Mobile Nodes among PMIPv6 Networks

Soochang PARK  Euisin LEE  Min-Sook JIN  Sang-Ha KIM  

IEICE TRANSACTIONS on Communications   Vol.E93-B   No.6   pp.1608-1611
Publication Date: 2010/06/01
Online ISSN: 1745-1345
DOI: 10.1587/transcom.E93.B.1608
Print ISSN: 0916-8516
Type of Manuscript: LETTER
Category: Network
Proxy Mobile IPv6,  layer-3 mobility,  inter-domain roaming,  

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In Proxy Mobile IPv6 (PMIPv6), when a Mobile Node (MN) enters a PMIPv6 domain and attaches to an access link, the router on the access link detects attachment of the MN by the link-layer access. All elements of PMIPv6 including the router then provide network-based mobility management service for the MN. If the MN moves to another router in this PMIPv6 domain, the new router emulates attachment to the previous router by providing same network prefix to the MN. In other words, PMIPv6 provides rapid mobility management based on layer-2 attachment and transparent mobility support to the MN by emulating layer-3 attachment with respect to intra-domain roaming. However, when the MN moves to other PMIPv6 domains, although the domains also provide the network-based mobility management service, the MN should exploit the host-based mobility management protocol, i.e. Mobile IPv6 (MIPv6), for the inter-domain roaming. Hence, this letter proposes the rapid and transparent inter-domain roaming mechanism controlled by the networks adopting PMIPv6.