A distributed mobility management scheme in networks with the locator/identifier separation

作者：Qiu, Feng^*; Zhou, HuaChun; Li, Xiaoqian; Wang, Gongpu; Zhang, Hongke

来源：International Journal of Communication Systems, 2014, 27(10): 1874-1893.

DOI：10.1002/dac.2440

• locator/identifier separation
• distributed mobility management
• survivability
• scalability

In traditional Internet architectures, current centralized mobility management schemes face scalability issues because of the creation of network bottlenecks and a singlemobility agent of failures. To address these issues, we propose a distributed mobility management scheme in locator/identifier separation networks (DMMLIS). We divide the network into many domains according to the area of autonomous systems. Each domain consists of a mapping server and several tunnel routers (xTRs). The mapping server stores global mappings between endpoint identifier (EID) prefixes and autonomous system numbers (ASNs) to lookup the mobile nodes' (MNs') home domain. Meanwhile, the mapping server also contains ASN-to-xTR mappings so that it can forward Map-Register and Map-Request messages to any xTR of the MN's home domain, thus enhancing reliability. In addition, the xTRs in each domain constitute one-hop distributed hash table ring. Moreover, any xTR in the MN's home domain may be the home agent of MNs, and the MNs' EID-to-RLOC (routing locator) mapping is stored in two xTRs using two hash functions. In this way, it not only supports quick lookup but also improves scalability and survivability. To evaluate the survivability and the efficiency of DMMLIS, we analyze the service blocking probability, the system response time, and the total protocol cost. We also present numerical results to demonstrate the performance of the proposed scheme.

• 出版日期2014-10
• 单位北京交通大学; 中国科学院信息工程研究所