I agree with David Conrad, (Re: Fast and sparse mapping?) responding to Brian Carpenter:
>> I don't think we need to design for a world where most domestic >> subscribers are multihomed, or care in the least if they get a >> new IP address each time they connect. > I would classify this as a failure of imagination. If RRG is > indeed aiming at 10 to 20 years in the future, I would be quite > astonished if an underlying assumption is that the way the > Internet is today is the way it will be one to two decades in the > future, just bigger. > > My assumption is that as people become more and more dependent on > Internet connectivity for their day-to-day lives, the less > interested they will be in periodic outages. When the myriad > devices in your house depend on being connected to the Internet > and you have a wide variety of layer 2 technologies over which to > connect (e.g., WiMax, FTTH, Cable, DSL, and their successors), I > fully expect most domestic subscribers to be multihomed. > Actually, I expect it to be worse than that -- I can very easily > imagine multi-homed PANs connected to multiple providers via > cell phone-as-router-equivalents. > > As such, in my opinion, a design that does not anticipate (or at > least cannot scale with) massive multihoming would be a waste of > time. The most obvious mass-scale use of what I call "Scalable PI" (SPI) space would be a separate EID prefix (LISP) or micronet (Ivip) for each handheld device - with every person on the planet having one of these things, currently known as "cell-phones". That would be a very large number of micronets - such as 10 billion. However, the rate of mapping updates is not necessarily extraordinarily high, since generally a mapping update will only be required if the device moves more than 1000km or so. This is the "TTR" (Translating Tunnel Router) approach to mobility: http://www.firstpr.com.au/ip/ivip/TTR-Mobility.pdf - Robin -- to unsubscribe send a message to [EMAIL PROTECTED] with the word 'unsubscribe' in a single line as the message text body. archive: <http://psg.com/lists/rrg/> & ftp://psg.com/pub/lists/rrg
