Current IP mobility protocols are centralized. “centralized” means
that there is always a centralized anchoring point in current mobility
protocols, e.g., HA in MIPv6/DSMIPv6, LMA in PMIPv6.

The centralized approach fits well for the centralized network
architecture. However, the network (both Internet and mobile network )
is evolving towards to more flat architecture.

The drive of flat network architecture evolution comes from various
aspects, for example: The content is more distributed to the edge of
network (because of CDN/Cache being widely deployed), the user is
preferred to access the content by a shortest path (i.e. from the edge
of the network); To reduce transmission cost, the operators prefer to
locally break out the traffic near the network edge;… etc.

The centralized mobility protocol is not optimized for the flat
network architecture in many ways, such as: non-optimal routes, single
point of failure issue etc.

Distribute mobility management aims to specify optimized mobility
protocols for the flat architecture.

Possible work items of DMM may include:

1.  Give best current practices of deploying current mobility
protocols in flat architecture. Describe how mobility functions of
current protocols could be distributed.

The goal is not to modify MIP/PMIP but to consider a particular
deployment.

2.  Document performances limitations of above approaches and propose
modification/extension of current mobility protocol for flat
architecture.