On Fri, 26 Aug 2011, Worley, Dale R (Dale) wrote:
From: Adam Novak [interfect(_at_)gmail(_dot_)com]
"Say I wanted to send data to my friend in the flat next to mine. It is
idiotic that nowadays, I would use the bottleneck subscriber line to
my upstream ISP and my crippled upload speed and push it all the way
across their infrastructure to my neighbors ISP and back to the Wifi
router in reach of mine."
This is a valid point, but it's also rather rare that one wants to
send large amounts of data directly to a friend in a neighboring flat
but one has not manually adjusting the local routing to take that into
account.
If each home or mobile device was essentially [its] own autonomous
system, what would this do to routing table size? To ASN space
utilization?
There must be at least a few hundred million mobile phones with data
capability, and a similar number of homes and small businesses with
WiFi systems. So we can estimate that a large fraction of a billion
entries would be added to the routing tables. How would that work?
I don't see this as a routing difficulty since the updated tables would be
highly local to the edge routers which would only need to know about
the more precise route between peers.
BUT I see enormous issues in terms of providing the capability in a secure
form that can be successfully enabled by the average end user. Also,
this is more than a routing issue since most file sharing involves
an itermediary with both edge devices connecting to a remote server. Not
only do the edge routers need to be configured for secure edge routing,
but the systems need to have applications which would deliver data
directly.
I think that folks with a requirement for local sharing will figure out
a local solution, often sharing an AP and uplink. If there is a business
case here, it wouldn't be hard for an enterprising AP vendor to offer
APs which create a shared network, perhaps even providing the 'server'
component. Could also be a device which has two radios and hence can
connect to two (or more) in range networks.
Dave Morris
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