Time analysis of route optimization in MIPv6

The Mobile IPv6 protocol allows mobile nodes in IPv6 networks to roam among subnets with various prefixes without the need to change its network address. This allows keeping the running TCP connections active even if the mobile node moves from subnet to subnet and keeps the mobile node reachable by its permanent home address all the time. The Mobile IPv6 protocol provides two ways of delivering data between the mobile node and its peer-bidirectional tunneling or route optimization. In bidirectional tunneling the data is tunneled through a central node in mobile node's home network-the home agent, whereas the other method routes the data directly between the two communicating nodes. The method of route optimization rapidly reduces the end-to-end delay, but requires implementation of Mobile IPv6 also at the mobile node's per. This article provides an analytical method for evaluating these two methods and investigates their efficiency based on various criteria.