On 2009-01-01 10:31, David Conrad wrote:
> Brian,
>
> On Dec 31, 2008, at 12:05 PM, Brian E Carpenter wrote:
>>> Adding more prefixes will hasten the inevitable.
>> Exactly. Thus far, since BGP4 was deployed, the size of the DFZ has
>> grown one order of magnitude less than the public Internet as a whole.
>
> I'm curious: how do you measure the size of the public Internet as a whole?
We can be pretty sure it's between 500M and 1B active IP addresses.
>
>> That's mainly a result of policy constraints on prefix length and
>> utilisation. If selfishness had ruled, we'd be vastly worse off by now.
>
> As much as I'd like to attribute a lack of selfishness to Internet
> service providers and their customers, I suspect a more accurate answer
> is that most folks haven't felt a need to multi-home (or couldn't
> justify the cost/complexity). Yet. I have a sneaking suspicion that
> will change when folks discover that all their communications, business
> and/or home monitoring, entertainment, etc. services are critically
> dependent on their Internet service and new products/services are made
> available that make multi-homing easier/more cost effective.
Well, indeed, that is why there is cause for concern, even if we don't
have any hard scientific data.
Brian
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