[Mip4] draft-mccann-mip4-mbb-00.txt

["McCann Peter-A001034" <pete.mccann at motorola.com>]

<<Chair hat off>>

I've just uploaded a short draft that contains some suggestions
on HA implementation details to assist in make-before-break 
handoffs.  I hope people can read and comment:

   A make-before-break handoff is one where resources on a target system
   are allocated prior to releasing the resources on a source system.
   Make-before-break can be an effective means to provide a more
   seamless handoff with fewer dropped packets.  The existing Mobile
   IPv4 specification supports simultaneous bindings, which can
   facilitate a make-before-break handoff.  However, the binding state
   at the home agent is only one example of a resource that can be
   allocated; others include the link connection to the Foreign Agent
   (or access router) and the provision of security associations between
   the mobile node and the mobility agents.  It may be desirable to set
   up these resources on the target system without necessarily creating
   a binding entry on the Home Agent.  This document provides some
   additional conventions on the use of simultaneous bindings in a make-
   before-break handoff that can be used to optimize the allocation of
   resources in these scenarios.

These suggestions might be appropriate for inclusion in rfc3344bis,
if there is still time to make them, or it could be published as a 
separate document.

Please, let me know what you think!

-Pete
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