
134 Chapter 6: Metro Mobility: Client-Based Mobile IP
• Timely release of Mobile IP resources—Resources being consumed to provide Mobile
IP services for a Mobile Nodes that has stopped receiving Mobile IP services by one agent
can be reclaimed by the peer agent in a more timely fashion than if it had to wait for the
mobility binding to expire.
• Early adoption of domain policy changes with regard to services offered/required of
a Mobile IP binding—For example, the home domain might now require reverse
tunneling, yet existing mobility bindings do not use them. Without a revocation
mechanism, new services can be put in place or removed only as bindings ...