[arin-ppml] "Leasing" of space via non-connectivity providers
jbates at brightok.net
Sun Feb 6 23:00:15 EST 2011
On 2/6/2011 9:47 PM, George Bonser wrote:
> It's funny, though, because in some cases I got a /24, the /25's, all
> of the /26's, /27's, /28's, /29's, and some /30's and then all of the
> /32's for all of the IPs in the /24!
> It was just nuts.
That's what I said of a sister company's network when their engineer
left and I took it over. /32's for every ppp session advertised via 3 IGPs!
I did a little bit more work. I tried to make sure my scripts pulled the
correct information, and it does look accurate, though I won't attest to
complete accuracy. ;)
Taking the data from the overall ASN report,
28,579 ASNs were at 0.00% or 78% of the ASNs recorded. Granted, they
only advertised 55,788 combined routes which would be 27% of the
report's Annce total.
However, I would still stand on the premise that if the market starts
transferring networks at the /24 level, routing table bloat would
increase. Operators only have the choice to aggregate as much as their
allocations allow. Networks grow over the years and IPv4 required
multiple non-contiguous allocations. The 55,788 routes most likely will
be a much smaller number for those 28,579 ASNs in IPv6. However, if RIRs
had given out smaller allocations, the number would likely be much larger.
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