Technical Summary
The present document analyzes deployment practices of existing IP
Mobility protocols in a distributed mobility management environment.
The analyzed IP level (i.e., layer 3) mobility protocols include those
developed by IETF and also those developed by other SDOs that have
been widely deployed. Due the plurality of different mobility enabling
protocol and solutions, the analysis has been intentionally limited to
IP level (i.e., layer 3) protocol that typically are based on some sort of
tunneling solution. The document then identifies existing limitations when
compared to the distributed mobility management requirements defined in
draft-ietf-dmm-requirements for a distributed mobility management solution.
On the existing IP mobility enabling architectures (outside mobile VPNs or
IETF defined IP mobility solutions), the document considers only the 3GPP
GPRS/EPS system and service provider Wi-Fi due their dominant positions
in the market place.
Working Group Summary
The document creation was not entirely smooth as seen from the timeline.
There are several aspects in the existing deployments making use of IP
mobility (such as the 3GPP GPRS/EPS) that already today include many
enhancements on the deployment & product feature level that can be seen
as a step towards distributed mobility management. The line between what
is a gap and what can be achieved with today's tools was not always exactly
clear. However, the WG has an agreement on the gaps described in this
document and the fact that the most prevalent solutions that exist are not
defined in IETF and are specific to certain system architectures.
Document Quality
There are no implementations of this document, since it only
presents an analysis of existing protocols and deployments to
what is intended to be achieved with distributed mobility management.
The document has received multiple thorough reviews in the WG.
Personnel
Jouni Korhonen (jouni.nospam@gmail.com) is the document shepherd.
Brian Haberman (briad@innivationslab.net) is the AD.